1.Research progress on dihydrochalcones from Lithocarpus litseifolius extracts in treatment of type 2 diabetes mellitus and its complications.
Yun-Qin WEI ; Yu-Lan CAI ; Yan YANG ; Shang-Heng FAN ; Lin-Li WU ; Gui-Lan NIE
China Journal of Chinese Materia Medica 2025;50(3):658-671
Type 2 diabetes mellitus(T2DM) is a prevalent metabolic and endocrine disorder. Long-term hyperglycemia can lead to severe chronic complications, imposing substantial economic burdens on both society and patients. Despite the availability of various hypoglycemic agents for clinical use, these agents often fail to meet the therapeutic needs of T2DM and its complications. Consequently, there is an urgent need for novel therapeutic strategies and drugs. Lithocarpus litseifolius(L. litseifolius), commonly referred to as "cordyceps on trees", has a long history of use in traditional medicine and can be applied in tea, sugar, and medicine. Research indicates that L. litseifolius extracts are rich in dihydrochalcones, including trilobatin, phloridzin, and phloretin, which exhibit a range of pharmacological activities, such as anti-inflammatory, antioxidant, hypoglycemic, hypolipidemic, hepatoprotective, and cardioprotective effects. These properties suggest potential applications in the treatment of T2DM and its complications. This review systematically compiled and organized the relevant literature from the past decade on dihydrochalcones(trilobatin, phloridzin, and phloretin) from L. litseifolius extracts. It highlighted recent research progress regarding their role in treating T2DM and its complications through mechanisms such as reducing insulin resistance, regulating glucose transport, improving glucose and lipid metabolism, modulating enzyme activity, regulating gut microbiota, and alleviating inflammation and oxidative damage. The purpose of this review is to provide a reference and basis for future research on the prevention and treatment of T2DM and its complications using dihydrochalcones(trilobatin, phloridzin, and phloretin) from L. litseifolius extracts.
Chalcones/chemistry*
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Diabetes Mellitus, Type 2/metabolism*
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Humans
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Animals
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Elaeocarpaceae/chemistry*
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Drugs, Chinese Herbal/therapeutic use*
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Hypoglycemic Agents/chemistry*
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Plant Extracts/chemistry*
2.Therapeutic effect of Ziziphi Spinosae Semen extracts on chronic unpredictable mild stress-induced depression and insomnia-like behavior in mice.
Hong-Bo CHENG ; Xian LIU ; Hui-Ying SHANG ; Rong GAO ; Wan-Yun DANG ; Ye-Hui GAO ; Cheng-Rong XIAO ; Yue GAO ; Zeng-Chun MA
China Journal of Chinese Materia Medica 2025;50(7):1817-1829
This paper aims to study the effect of Ziziphi Spinosae Semen extracts on chronic unpredictable mild stress(CUMS)-induced depression-like and insomnia behavior models of mice. The CUMS-induced depression-like and insomnia behavior model of mice was established by CUMS treatment for three weeks. The mice were randomly divided into control group, model group, positive drug diazepam group(2 mg·kg~(-1)), as well as low-dose group(1.95 g·kg~(-1)), medium-dose group(3.9 g·kg~(-1)), and high-dose group(7.8 g·kg~(-1)) of Ziziphi Spinosae Semen extracts, with 18 mice in each group. On the 15th day of modeling, the drug was administered intragastrically once a day for one week. Then, the pentobarbital sodium cooperative righting experiment, open field experiment, and elevated plus maze experiment were carried out, respectively. The contents of neurotransmitters 5-hydroxytryptamine(5-HT) and 5-hydroxyindoleacetic acid(5-HIAA) in serum and thalamus of mice, as well as the levels of corticotropin releasing hormone(CRH), adrenocorticotropic hormone(ACTH), and corticosterone(CORT) in serum, were determined by enzyme-linked immunosorbent assay(ELISA). The neuron damage in the hippocampus of mice was observed by hematoxylin-eosin(HE) staining and Nissl staining. Western blot was used to detect the expressions of tryptophan hydroxylase 2(TPH2), serotonin transporter(SERT), monoamine oxidase A(MAOA), five prime repressors under dual repression binding protein 1(Freud1), synaptic plasticity-related proteins [cellular gene FOS(C-FOS), postsynaptic density protein 95(PSD95), synapsin 1(SYN1), and activity-regulated cytoskeleton-associated gene(ARC)], blood-brain barrier(BBB) permeability-related proteins [zonula occludens 1(ZO-1), occludin, and claudin 1], inflammatory factors [NOD-, LRR-and pyrin domain-containing protein 3(NLRP3), apoptosis-associated speck-like protein(ASC), gasdermin D(GSDMD), caspase-3, and caspase-8], and antioxidant factors [nuclear factor erythroid 2-related factor 2(NRF2) and heme oxygenase 1(HO1)] in thalamic tissue of mice. The results indicated that compared with that in the model group, the sleep latency was significantly shortened, and the sleep duration was significantly prolonged in each dose group of Ziziphi Spinosae Semen extracts. The number of visits to the central area of the open field and the distance and time of visits were significantly increased in each dose group of Ziziphi Spinosae Semen extracts. In addition, the proportion of distance and time of entering the open arm area of the elevated plus maze was significantly increased in each dose group of Ziziphi Spinosae Semen extracts. The contents of 5-HT and 5-HIAA in serum and thalamus of mice increased to varying degrees in each dose group of Ziziphi Spinosae Semen extracts; the contents of CRH, ACTH, and CORT in serum of mice were significantly decreased. The protein expression of TPH2 was significantly increased. The protein expression of MAOA, SERT, and Freud1 was significantly decreased. Ziziphi Spinosae Semen extracts could also significantly reduce the protein expression of C-FOS but significantly increase the protein expression of PSD95, ARC, and SYN1. They could reduce the pathological damage of the hippocampus in mice and significantly increase the protein expression of ZO-1, occluding, and claudin 1. The protein expression of NLRP3, GSDMD, ASC, caspase-3, and caspase-8 in the thalamic tissue of mice was significantly decreased, and the protein expression of HO1 and NRF2 was significantly increased. In conclusion, Ziziphi Spinosae Semen extracts could effectively improve sleep disorders and depression-like behaviors in CUMS-induced model mice, which may be related to regulating the 5-HT anabolism process and hypothalamic-pituitary-adrenal(HPA) axis-related hormone levels, reducing pathological damage in the hippocampus, improving synaptic plasticity, repairing BBB integrity, and alleviating inflammatory response and oxidative stress damage.
Animals
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Ziziphus/chemistry*
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Mice
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Male
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Depression/psychology*
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Drugs, Chinese Herbal/administration & dosage*
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Sleep Initiation and Maintenance Disorders/psychology*
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Stress, Psychological/complications*
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Behavior, Animal/drug effects*
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Humans
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Disease Models, Animal
3.Observation on the therapeutic effect of a modified Devine procedure with subcutaneous sliding fixation method for concealed penis.
Mohammed Abdulkarem AL-QAISI ; Hai-Fu TIAN ; Jia-Jin FENG ; Ke-Ming CHEN ; Jin ZHANG ; Yun-Shang TUO ; Xue-Hao WANG ; Bin-Cheng HUANG ; Muhammad Arslan Ul HASSAN ; Rui HE ; Guang-Yong LI
Asian Journal of Andrology 2025;27(4):470-474
To evaluate the therapeutic effect of a modified Devine procedure with a subcutaneous sliding fixation method for the treatment of congenital concealed penis, we retrospectively selected 45 patients with congenital concealed penises who were admitted to General Hospital of Ningxia Medical University (Yinchuan, China) between September 2020 and November 2023. In all cases, the penis was observed to be short, and retracting the skin at the base revealed a normal penile body, which immediately returned to its original position upon release. All patients underwent the modified Devine procedure with subcutaneous sliding fixation and completed a 12-week postoperative follow-up. A statistically significant increase in penile length was observed postoperatively, with the median length increasing from 4.0 (interquartile range [IQR]: 3.5-4.8; 95% confidence interval [CI]: 3.9-4.4) cm to 8.0 (IQR: 7.8-8.0; 95% CI: 7.7-7.9) cm, with P < 0.001. The parents were satisfied with the outcomes, including increased penile length, improved hygiene, and enhanced esthetics. Except for mild foreskin edema in all cases, no complications (such as infections, skin necrosis, or penile retraction) were observed. The edema was resolved within 4 weeks after the operation. This study demonstrates that the modified Devine procedure utilizing the subcutaneous sliding fixation method yields excellent outcomes with minimal postoperative complications, reduced penile retraction, and high satisfaction rates among patients and their families.
Humans
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Male
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Penis/abnormalities*
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Retrospective Studies
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Urologic Surgical Procedures, Male/methods*
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Treatment Outcome
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Child
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Plastic Surgery Procedures/methods*
4.Clinical features and immunotherapy for children with loss-of-function/gain-of-function mutations in the STAT gene: an analysis of 10 cases.
Hong-Wei LI ; Yan-Hong WANG ; Shang-Zhi WU ; Bi-Yun ZHANG ; Shi-Hui XU ; Jia-Xing XU ; Zhan-Hang HUANG ; Cheng-Yu LU ; De-Hui CHEN
Chinese Journal of Contemporary Pediatrics 2025;27(8):951-958
OBJECTIVES:
To investigate the clinical features of children with STAT gene mutations, and to explore corresponding immunotherapy strategies.
METHODS:
A retrospective analysis was performed for the clinical data of 10 children with STAT gene mutations who were admitted to the Department of Pediatrics of the First Affiliated Hospital of Guangzhou Medical University, from October 2015 to October 2024. Exploratory immunotherapy was implemented in some refractory cases, and the changes in symptoms, imaging manifestations, and cytokine levels were assessed after treatment.
RESULTS:
For the 10 children, the main clinical manifestations were recurrent rash since birth (7/10), cough (8/10), wheezing (5/10), expectoration (4/10), and purulent nasal discharge (4/10). Genotyping results showed that there was one child with heterozygous loss-of-function (LOF) mutation in the STAT1 gene, four children with heterozygous LOF mutation in the STAT3 gene, and five children with heterozygous gain-of-function (GOF) mutation in the STAT3 gene. Two children with LOF mutation in the STAT3 gene showed decreased interleukin-6 levels and improved clinical symptoms and imaging findings after omalizumab treatment. Three children with GOF mutation in the STAT3 gene achieved effective disease control after treatment with methylprednisolone (0.5 mg/kg per day). Two children with GOF mutation in the STAT3 gene received treatment with JAK inhibitor and then showed some improvement in symptoms.
CONCLUSIONS
STAT gene mutation screening should be considered for children with recurrent rash and purulent respiratory tract infections. Targeted immunotherapy may improve prognosis in patients with no response to conventional treatment.
Humans
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Male
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Immunotherapy
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Female
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Child, Preschool
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Child
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Gain of Function Mutation
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Retrospective Studies
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Infant
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Loss of Function Mutation
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STAT Transcription Factors/genetics*
5.Nanomedicine-driven tumor glucose metabolic reprogramming for enhanced cancer immunotherapy.
Chenwei JIANG ; Minglu TANG ; Yun SU ; Junjie XIE ; Qi SHANG ; Mingmei GUO ; Xiaoran AN ; Longfei LIN ; Ruibin WANG ; Qian HUANG ; Guangji ZHANG ; Hui LI ; Feihu WANG
Acta Pharmaceutica Sinica B 2025;15(6):2845-2866
Tumors exhibit abnormal glucose metabolism, consuming excessive glucose and excreting lactate, which constructs a tumor microenvironment that facilitates cancer progression and disrupts immunotherapeutic efficacy. Currently, tumor glucose metabolic dysregulation to reshape the immunosuppressive microenvironment and enhance immunotherapy efficacy is emerging as an innovative therapeutic strategy. However, glucose metabolism modulators lack specificity and still face significant challenges in overcoming tumor delivery barriers, microenvironmental complexity, and metabolic heterogeneity, resulting in poor clinical benefit. Nanomedicines, with their ability to selectively target tumors or immune cells, respond to the tumor microenvironment, co-deliver multiple drugs, and facilitate combinatorial therapies, hold significant promise for enhancing immunotherapy through tumor glucose metabolic reprogramming. This review explores the complex interactions between tumor glucose metabolism-specifically metabolite transport, glycolysis processes, and lactate-and the immune microenvironment. We summarize how nanomedicine-mediated reprogramming of tumor glucose metabolism can enhance immunotherapy efficacy and outline the prospects and challenges in this field.
6.Air Pollution and Cardiac Biomarkers in Heart Failure: A Scoping Review.
Gang LI ; Yan Hui JIA ; Yun Shang CUI ; Shao Wei WU ; Tong Yu MA ; Yun Xing JIANG ; Hong Bing XU ; Yu Hui ZHANG ; Mary A FOX
Biomedical and Environmental Sciences 2025;38(11):1430-1443
Ambient air pollution is increasingly being recognized as a risk factor for heart failure; however, its effects on cardiac biomarkers remain unclear. This scoping review assessed the existing evidence on the association between air pollution and cardiac biomarkers in heart failure, described the key concepts, synthesized data, and identified research gaps. Following the PRISMA-ScR guidelines, PubMed, Embase, Web of Science, and CNKI databases were searched for studies on air pollution, heart failure, and biomarkers. A total of 765 records were screened, and 81 full texts were assessed for eligibility, resulting in 15 studies. The results showed that the exposure to particulate matter was associated with elevated N-terminal pro-B-type natriuretic peptide and troponin levels. Several studies have linked particulate matter exposure to a higher cardiovascular risk and heart failure biomarkers. Inflammatory and oxidative stress markers were consistently elevated across studies, supporting the biological relevance of these associations. However, few studies have focused specifically on populations with heart failure or clinically relevant biomarkers, and the evidence for gaseous pollutants remains inconclusive. These findings highlight the need to integrate environmental risk assessment into heart failure care and inform policy efforts to reduce the pollution-related cardiovascular burden. Further research should address these gaps through improved exposure assessments and the integration of mechanistic evidence.
Heart Failure/epidemiology*
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Biomarkers/metabolism*
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Humans
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Air Pollution/adverse effects*
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Air Pollutants/adverse effects*
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Particulate Matter/adverse effects*
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Environmental Exposure
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Natriuretic Peptide, Brain/blood*
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Oxidative Stress
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Troponin/blood*
7.Clinical trial of daglizin in the treatment of patients with acute myocardial infarction complicated with type 2 diabetes
Wei LIN ; Shang-Quan XIONG ; Ping ZHAN ; Li ZHAO ; Cui-Yun LI ; Chao LIN ; Fei-Ning LIN ; Ting WANG
The Chinese Journal of Clinical Pharmacology 2024;40(20):2924-2928
Objective To observe the influence of dapagliflozin tablets on myocardial enzymes,mitral valve blood flow and major adverse cardiovascular events(MACE)in patients with acute myocardial infarction(AMI)complicated with type 2 diabetes mellitus(T2DM)after interventional therapy.Methods AMI patients with T2DM were divided into control group and treatment group by cohort method.The control group was given aspirin tablets 300 mg and ticagrelor 180 mg orally,qd,until the day of interventional treatment.After interventional therapy,aspirin tablets 100 mg,qd,oral ticagrelor tablets 90 mg each time,once in the morning and once in the evening.On the basis of the treatment in the control group,the patients in the treatment group were given dapagliflozin tablets 5-10 mg,qd,every morning after admission.After 3 months of continuous treatment,the clinical efficacy,blood glucose control effect[fasting plasma glucose(FPG),2 hour postprandial blood glucose(2 h PG)],myocardial enzymes indicators[creatine kinase(CK),creatine kinase isoenzyme-MB(CK-MB)],ventricular remodeling indicators[left ventricular ejection fraction(LVEF),left ventricular end systolic diameter(LVESD)],adverse drug reactions and MACE were compared between the two groups.Results There were 55 cases in the control group and 59 cases in the treatment group.After treatment,the total effective rates of the treatment group and the control group were 88.14%(52 cases/59 cases)and 72.73%(40 cases/55 cases),respectively,the difference was statistically significant(P<0.05).After treatment,the FPG of the treatment group and the control group were(7.29±0.71)and(7.81±0.75)mmol·L-1,respectively;the 2 h PG were(8.66±1.33)and(9.59±1.38)mmol·L-1,respectively;the CK were(145.68±29.82)and(163.68±42.16)U·L-1,respectively;the CK-MB were(8.21±2.37)and(10.33±3.08)U·L-1,respectively;the LVEF were(57.63±8.74)%and(51.41±6.49)%,respectively;LVESD were(33.26±5.33)and(39.51±5.38)mm,respectively.The above indexes in the treatment group were significantly different from those in the control group(all P<0.05).During the treatment,the adverse drug reactions in the treatment group mainly included nausea and vomiting,diarrhea,constipation.The adverse drug reactions in the control group mainly included hypoglycemia,diarrhea,headache.The total incidence of adverse drug reactions in the treatment group and the control group was 6.68%(4 cases/59 cases)and 9.09%(5 cases/55 cases),respectively,and the difference was not statistically significant(P>0.05).After 3 months of follow-up,the total incidence of MACE in the treatment group and the control group was 5.08%and 18.18%,respectively,the difference was statistically significant(P<0.05).Conclusion Dapagliflozin has a significant efficacy in the treatment of AMI patients with T2DM,and it can enhance the effect of blood glucose control,reduce the myocardial injury,inhibit the ventricular remodeling,and reduce the risk of MACE,with high safety.
8.Comparison of the efficacy of different surgical strategies in the treatment of patients with initially resectable gastric cancer liver metastases
Li LI ; Yunhe GAO ; Lu ZANG ; Kan XUE ; Bin KE ; Liang SHANG ; Zhaoqing TANG ; Jiang YU ; Yanrui LIANG ; Zirui HE ; Hualong ZHENG ; Hua HUANG ; Jianping XIONG ; Zhongyuan HE ; Jiyang LI ; Tingting LU ; Qiying SONG ; Shihe LIU ; Yawen CHEN ; Yun TANG ; Han LIANG ; Zhi QIAO ; Lin CHEN
Chinese Journal of Surgery 2024;62(5):370-378
Objective:To examine the impact of varied surgical treatment strategies on the prognosis of patients with initial resectable gastric cancer liver metastases (IR-GCLM).Methods:This is a retrospective cohort study. Employing a retrospective cohort design, the study selected clinicopathological data from the national multi-center retrospective cohort study database, focusing on 282 patients with IR-GCLM who underwent surgical intervention between January 2010 and December 2019. There were 231 males and 51 males, aging ( M(IQR)) 61 (14) years (range: 27 to 80 years). These patients were stratified into radical and palliative treatment groups based on treatment decisions. Survival curves were generated using the Kaplan-Meier method and distinctions in survival rates were assessed using the Log-rank test. The Cox risk regression model evaluated HR for various factors, controlling for confounders through multivariate analysis to comprehensively evaluate the influence of surgery on the prognosis of IR-GCLM patients. A restricted cubic spline Cox proportional hazard model assessed and delineated intricate associations between measured variables and prognosis. At the same time, the X-tile served as an auxiliary tool to identify critical thresholds in the survival analysis for IR-GCLM patients. Subgroup analysis was then conducted to identify potential beneficiary populations in different surgical treatments. Results:(1) The radical group comprised 118 patients, all undergoing R0 resection or local physical therapy of primary and metastatic lesions. The palliative group comprised 164 patients, with 52 cases undergoing palliative resections for gastric primary tumors and liver metastases, 56 cases undergoing radical resections for gastric primary tumors only, 45 cases undergoing palliative resections for gastric primary tumors, and 11 cases receiving palliative treatments for liver metastases. A statistically significant distinction was observed between the groups regarding the site and the number of liver metastases (both P<0.05). (2) The median overall survival (OS) of the 282 patients was 22.7 months (95% CI: 17.8 to 27.6 months), with 1-year and 3-year OS rates were 65.4% and 35.6%, respectively. The 1-year OS rates for patients in the radical surgical group and palliative surgical group were 68.3% and 63.1%, while the corresponding 3-year OS rates were 42.2% and 29.9%, respectively. A comparison of OS between the two groups showed no statistically significant difference ( P=0.254). Further analysis indicated that patients undergoing palliative gastric cancer resection alone had a significantly worse prognosis compared to other surgical options ( HR=1.98, 95% CI: 1.21 to 3.24, P=0.006). (3) The size of the primary gastric tumor significantly influenced the patients′ prognosis ( HR=2.01, 95% CI: 1.45 to 2.79, P<0.01), with HR showing a progressively increasing trend as tumor size increased. (4) Subgroup analysis indicates that radical treatment may be more effective compared to palliative treatment in the following specific cases: well/moderately differentiated tumors ( HR=2.84, 95% CI 1.49 to 5.41, P=0.001), and patients with liver metastases located in the left lobe of the liver ( HR=2.06, 95% CI 1.19 to 3.57, P=0.010). Conclusions:In patients with IR-GCLM, radical surgery did not produce a significant improvement in the overall prognosis compared to palliative surgery. However, within specific patient subgroups (well/moderately differentiated tumors, and patients with liver metastases located in the left lobe of the liver), radical treatment can significantly improve prognosis compared to palliative approaches.
9.Comparison of the efficacy of different surgical strategies in the treatment of patients with initially resectable gastric cancer liver metastases
Li LI ; Yunhe GAO ; Lu ZANG ; Kan XUE ; Bin KE ; Liang SHANG ; Zhaoqing TANG ; Jiang YU ; Yanrui LIANG ; Zirui HE ; Hualong ZHENG ; Hua HUANG ; Jianping XIONG ; Zhongyuan HE ; Jiyang LI ; Tingting LU ; Qiying SONG ; Shihe LIU ; Yawen CHEN ; Yun TANG ; Han LIANG ; Zhi QIAO ; Lin CHEN
Chinese Journal of Surgery 2024;62(5):370-378
Objective:To examine the impact of varied surgical treatment strategies on the prognosis of patients with initial resectable gastric cancer liver metastases (IR-GCLM).Methods:This is a retrospective cohort study. Employing a retrospective cohort design, the study selected clinicopathological data from the national multi-center retrospective cohort study database, focusing on 282 patients with IR-GCLM who underwent surgical intervention between January 2010 and December 2019. There were 231 males and 51 males, aging ( M(IQR)) 61 (14) years (range: 27 to 80 years). These patients were stratified into radical and palliative treatment groups based on treatment decisions. Survival curves were generated using the Kaplan-Meier method and distinctions in survival rates were assessed using the Log-rank test. The Cox risk regression model evaluated HR for various factors, controlling for confounders through multivariate analysis to comprehensively evaluate the influence of surgery on the prognosis of IR-GCLM patients. A restricted cubic spline Cox proportional hazard model assessed and delineated intricate associations between measured variables and prognosis. At the same time, the X-tile served as an auxiliary tool to identify critical thresholds in the survival analysis for IR-GCLM patients. Subgroup analysis was then conducted to identify potential beneficiary populations in different surgical treatments. Results:(1) The radical group comprised 118 patients, all undergoing R0 resection or local physical therapy of primary and metastatic lesions. The palliative group comprised 164 patients, with 52 cases undergoing palliative resections for gastric primary tumors and liver metastases, 56 cases undergoing radical resections for gastric primary tumors only, 45 cases undergoing palliative resections for gastric primary tumors, and 11 cases receiving palliative treatments for liver metastases. A statistically significant distinction was observed between the groups regarding the site and the number of liver metastases (both P<0.05). (2) The median overall survival (OS) of the 282 patients was 22.7 months (95% CI: 17.8 to 27.6 months), with 1-year and 3-year OS rates were 65.4% and 35.6%, respectively. The 1-year OS rates for patients in the radical surgical group and palliative surgical group were 68.3% and 63.1%, while the corresponding 3-year OS rates were 42.2% and 29.9%, respectively. A comparison of OS between the two groups showed no statistically significant difference ( P=0.254). Further analysis indicated that patients undergoing palliative gastric cancer resection alone had a significantly worse prognosis compared to other surgical options ( HR=1.98, 95% CI: 1.21 to 3.24, P=0.006). (3) The size of the primary gastric tumor significantly influenced the patients′ prognosis ( HR=2.01, 95% CI: 1.45 to 2.79, P<0.01), with HR showing a progressively increasing trend as tumor size increased. (4) Subgroup analysis indicates that radical treatment may be more effective compared to palliative treatment in the following specific cases: well/moderately differentiated tumors ( HR=2.84, 95% CI 1.49 to 5.41, P=0.001), and patients with liver metastases located in the left lobe of the liver ( HR=2.06, 95% CI 1.19 to 3.57, P=0.010). Conclusions:In patients with IR-GCLM, radical surgery did not produce a significant improvement in the overall prognosis compared to palliative surgery. However, within specific patient subgroups (well/moderately differentiated tumors, and patients with liver metastases located in the left lobe of the liver), radical treatment can significantly improve prognosis compared to palliative approaches.
10.Expression of RFC5 in cervical cancer and its effect on the prognosis and immune regulation as well as its related mechanism
Yuting XIA ; Xiangrong CUI ; Yun SHANG
Cancer Research and Clinic 2024;36(8):561-568
Objective:To investigate the expression of replication factor C5 (RFC5) in cervical cancer, and its effect on the prognosis and immune regulation as well as its related mechanism.Methods:RFC5 mRNA expression data and the clinical data of 280 cervical cancer patients were downloaded from the Cancer Genome Atlas (TCGA) database in May 2023. The difference of RFC5 mRNA expression between cervical cancer tissues and paracancerous normal tissues was compared and the expression of RFC5 mRNA in patients with different clinicopathological characteristics was analyzed. According to the median expression level of RFC5 mRNA in cancer tissues, 280 patients were divided into the high expression group and the low expression group. Kaplan-Meier method was used for survival analysis, and log-rank test was used for comparison. Gene Expression Profiling Interactive Analysis (GEPIA) 2 online tool was used to verify the relationship between RFC5 gene expression and the prognosis of cervical cancer. Univariate and multivariate Cox proportional risk models were used to analyze the factors influencing the overall survival (OS) of patients with cervival cancer in TCGA database. LinkedOmics database was used to screen the co-differentially expressed genes (DEG) related to RFC5 in cervical cancer. Gene Ontology (GO) and Kyoto Encyclopedia of Genesand Genomes (KEGG) pathway enrichment analysis of DEG related to RFC5 were performed based on the DAVID database. Based on the Tumor Immune Estimation Resource (TIMER) database, the relationship between RFC5 expression and tumor infiltrating immune cells in cervival cancer was analyzed by using Spearman method. The relationship between RFC5 expression and immunomodulatory factors in cervical cancer was analyzed based on tumor-immune system interactions database (TISIDB). The expression of RFC5 protein in cervical cancer tissues was analyzed based on Human Protein Atlas (HPA) database. The expression of RFC5 in pan-cancer and its correlation with OS were analyzed based on GEPIA2 online tool.Results:In TCGA database, the relative expression level of RFC5 mRNA in cervical cancer tissues (277 cases) was higher than that in paracancerous normal tissues (3 cases), and the difference was statistically significant ( P < 0.001), while there were no significant differences in the relative expression level of RFC5 mRNA in cancer tissues of patients with different age, pathological type and clinical staging (all P > 0.05). The OS of cervival cancer patients in high RFC5 expression group (139 cases) was better than that of patients in low RFC5 expression group (138 cases), and the difference was statistically significant ( P = 0.027). GEPIA tool verification indicated that expression of RFC5 in cervical cancer and its relationship with OS showed the same results. GO and KEGG enrichment analysis showed that RFC5-related genes were mainly involved in DNA replication, cell cycle, Fanconi anemia, mismatch repair, base excision repair, nucleotide excision repair and other signaling pathways. Multivariate Cox regression analysis showed that age ≥ 65 years, clinical staging Ⅳ and the low expression of RFC5 were independent risk factors of poor OS in patients with cervical cancer (all P < 0.05). TIMER database analysis showed that the expression of RFC5 was positively correlated with tumor purity ( rho = 0.198, P < 0.001), while weakly correlated or not correlated with the infiltration levels of B cells ( rho = 0.062, P = 0.306), CD8 + T cells ( rho = 0.168, P = 0.005), CD4 + T cells ( rho = -0.049, P = 0.418), macrophages ( rho = 0.034, P = 0.577), neutrophils ( rho = 0.169, P = 0.005) and bone marrow dendritic cells ( rho = 0.026, P = 0.667). Analysis of TISIDB data showed that RFC5 expression was mostly negatively correlated with immunosuppressive factors and immunostimulatory factors. HPA database showed that the expression level of RFC5 in cervical cancer tissues was higher than that in normal cervical tissues. GEPIA online tool database analysis showed that RFC5 expression was up-regulated in a variety of malignant tumors. The OS of thymoma patients with high RFC5 expression was better than that of those with low RFC5 expression, while the OS of acute myeloid leukemia patients with high RFC5 expression was worse than those with low RFC5 expression, and the differences in OS were statistically significant (both P < 0.05). Conclusions:RFC5 is highly expressed in cervical cancer and its expression is associated with prognosis of patients with cervival cancer. Overexpression of RFC5 may inhibit the expression of immunomodulatory factors, and it may regulate the development and progression of cervical cancer through DNA replication, cell cycle, mismatch repair, base excision repair and other related pathways.

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