1.Evolution and interpretation of diagnostic criteria for infective endocarditis
Hongkun QING ; Weiteng WANG ; Xuhua JIAN
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2026;33(01):30-36
Infective endocarditis (IE) is a life-threatening infectious disease. Although histopathological examination remains the gold standard for definitive diagnosis, it is performed in only a minority of patients; thus, the diagnosis of IE continues to rely predominantly on clinical manifestations. However, IE presents with highly variable systemic symptoms that often lack cardiac-specific features, posing significant diagnostic challenges. To address this complexity, multiple diagnostic criteria have been developed, integrating clinical presentation, imaging findings, and microbiological evidence. Over the past three decades, substantial shifts in the microbiological and epidemiological profiles of IE, coupled with advances in imaging modalities and laboratory diagnostics, have profoundly influenced diagnostic approaches, driving continuous refinement of diagnostic criteria. This review provides a comprehensive overview of the major diagnostic criteria for IE, traces their historical evolution, evaluates recent updates and diagnostic performance, and offers theoretical insights and practical implications to guide future research.
2.Investigation of tumor-suppressive mechanism of Guiqi Yiyuan Extract combined with cisplatin in Lewis lung cancer mice via TXNIP/NLRP3/Caspase-1/GSDMD pathway
Qiong-qiong GUO ; Wen-jie LI ; Jin-tian LI ; Jian-qing LIANG ; Ping TIAN ; Rong HU ; Xu-chao DONG ; Mei-hao XUE ; Long-xin XU
Chinese Traditional Patent Medicine 2025;47(9):2894-2901
AIM To investigate the tumor-suppressive mechanism of Guiqi Yiyuan Extract combined with cisplatin in Lewis lung cancer mice.METHODS Ten intact C57BL/6J mice were assigned to the blank group.Sixty additional mice were developed into Lewis lung cancer models bearing transplanted tumor and subsequently allocated into the model group,the cisplatin group(5 mg/kg),the high-dose Guiqi Yiyuan Extract group(6.6 g/kg),and the low-dose,medium-dose and high-dose Guiqi Yiyuan Extract combined with cisplatin group(1.6,3.3,6.6 g/kg+5 mg/kg),with 10 mice in each group.Mice in the blank and model groups received saline via daily gavage,while treatment groups were administered Guiqi Yiyuan Extract orally(once daily),and cisplatin injection intraperitoneally(once every other day).After 14 days of drug administration,mice were euthanized for endpoint analysis.The following assessments were conducted:general health status and body weight changes monitored throughout the study period;tumor excision and weighing for inhibition rate calculation;histopathological examination of tumors via hematoxylin-eosin(HE)staining;serum quantification of IL-1 β,IL-18 and HMGB1 by ELISA;ultrastructural analysis of tumor cell death using transmission electron microscopy(TEM);spatial localization of TXNIP and GSDMD-N in tumor sections via immunofluorescence(IF);and Western blot detection of TXNIP,NLRP3,Caspase-1,cleaved Caspase-1,GSDMD,GSDMD-N protein expressions in tumor tissues.RESULTS Compared to the model group,the cisplatin group and all combination therapy groups exhibited significant reduction in tumor weight(P<0.05)and increased tumor suppression rate;enhanced tumor tissue necrosis with characteristic pyroptotic morphology;elevated serum levels of IL-1β,IL-18 and HMGB1(P<0.05);and upregulated expressions of pyroptosis-associated proteins TXNIP,NLRP3,Caspase-1,cleaved Caspase-1,GSDMD and GSDMD-N(P<0.05).The high dose combination group demonstrated optimal therapeutic efficacy(P<0.05).CONCLUSION Guiqi Yiyuan Extract enhances cisplatin sensitivity,demonstrating synergistic anti-tumor effects in Lewis lung carcinoma-bearing mice.This combinatorial therapeutic effect likely involves modulation of the TXNIP/NLRP3/Caspase-1/GSDMD pathway.
3.Characteristic Expression of Multiple Neurotransmitters Oscillation Imbabance in Brains of 1 028 Patients with Depression
Anqi WANG ; Xuemei QING ; Yanshu PAN ; Pingfa ZHANG ; Ying ZHANG ; Jian LI ; Cheng ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(11):278-286
ObjectiveTo analyze the characteristic expression patterns of six neurotransmitters including 5-hydroxytryptamine (5-HT), dopamine (DA), acetylcholine (ACh), norepinephrine (NE), inhibitory neurotransmitter (INH), and excitatory neurotransmitter (EXC) in the whole brain and different brain regions of depression patients by Search of Encephalo Telex (SET), providing new ideas for the study of heterogeneous etiology of depression. Methods(1) A retrospective study was conducted on supra-slow signals of EEG fluctuations in 1 028 patients with depression. The SET system was used to obtain the expression information of six neurotransmitters in the whole brain and 12 brain regions: left frontal region (F3), right frontal region (F4), left central region (C3), right central region (C4), left parietal region (P3), right parietal region (P4), left occipital region (O1), right occipital region (O2), left anterior temporal region (F7), right anterior temporal region (F8), left posterior temporal region (T5), and right posterior temporal region (T6). The expression information of each neurotransmitter was compared with the normal model, and it was found that single neurotransmitter was in one of three states: increased, decreased, or normal expression. The simultaneous expression states of six neurotransmitters in the brain space were referred to as the expression pattern of multiple neurotransmitters. (2) A MySQL database was established to analyze the actual expression patterns of different neurotransmitters in the whole brain of patients with depression. (3) Factor analysis was conducted to further analyze the characteristic rules of 78 variables of neurotransmitters in the whole brain and 12 brain regions in depression patients. Results(1) The expression of single neurotransmitters in the whole brain and different brain regions of the total depression population showed one of three expression states (increased/decreased/normal), being normal in the majority. The decreased and increased expression of 5-HT, ACh, DA, INH, EXC, and NE in the whole brain occurred in 6% and 25%, 31% and 17%, 36% and 9%, 15% and 31%, 32% and 14%, and 22% and 22%, respectively. (2) The antagonizing pairs of neurotransmitters (EXC/INH, DA/5-HT, and ACh/NE) showed significant antagonistic relationships in the whole brain and different brain regions, with a strong negative correlation between EXC and INH (P<0.01, |r| values ranging from 0.69 to 0.76), a strong negative correlation between DA and 5-HT (P<0.01, |r| values ranging from 0.83 to 0.90), and a moderate negative correlation between ACh and NE (P<0.01, with |r| values ranging from 0.56 to 0.66). Meanwhile, non-antagonizing pairs of neurotransmitters in the whole brain and different brain regions also showed correlations, with DA/NE (P<0.01, |r| values ranging from 0.38 to 0.46) and NE/EXC (P<0.01, |r| values ranging from 0.56 to 0.61) showing weak and moderate negative correlations, respectively, and DA/EXC showing a weak positive correlation (P<0.01, |r| values ranging from 0.38 to 0.47). (3) The six neurotransmitters in the 1 028 patients with depression presented a total of 170 expression patterns in the whole brain. The top 30 expression patterns were reported in this paper, with a cumulative rate of 60.60%, including patterns ① INH+/5-HT-/ACh+/DA+/NE-/EXC- (9.05%), ② INH+/5-HT-/ACh↓/DA+/NE-/EXC- (4.57%), and ③ INH+/5-HT-/ACh+/DA+/NE↓/EXC- (3.31%). That is, the proportion of depression patients with normal levels of all the six neurotransmitters was 9.05%, and the patients with at least one neurotransmitter abnormality accounted for 91.95%. (4) The factor analysis extracted 22 common factors from 78 variables in the whole brain and different brain regions. These common factors showed the absolute values of loadings ranging from 0.32 to 0.86 and the eigenvalues (F) ranging from 1.03 to 13.43, with a cumulative contribution rate of 76.82%. The characteristic expression patterns included ① AChP3↓/AChW↓/AChC3↓/AChF3↓/AChO1↓/AChT5↓/AChF7↓/NEP3↑/NEW↑/NEC3↑/NEF3↑/NEO1↑/NET5↑/NEF7↑ (F=13.43, whole brain), ② 5-HTO2↑/DAO2↓/5-HTP4↑/DAP4↓/5-HTW↑/DAW↓/5-HTC4↑/DAC4↓ (F=5.94), and ③ EXCF4↓/DAF4↓/NEF4↑/INHF4↑/5-HTF4↑/AChF4↓ (F=5.33). ConclusionThe actual 170 expression patterns of 6 neurotransmitters in the whole brain of 1 028 depression patients indicate that depression is a heterogeneous disease with individualized characteristics. The 22 characteristic expression patterns in the whole brain and 12 brain regions verify the pathogenesis hypothesis of multi-neurotransmitters oscillation imbalance in brains of depression patients. In summary, this study provides new guidance for the etiology, diagnosis, and treatment of depression and establishes a methodological foundation for the effectiveness evaluation of individualized treatment of depression by traditional Chinese medicine based on the objective biological markers.
4.Characteristic Expression of Multiple Neurotransmitters Oscillation Imbabance in Brains of 1 028 Patients with Depression
Anqi WANG ; Xuemei QING ; Yanshu PAN ; Pingfa ZHANG ; Ying ZHANG ; Jian LI ; Cheng ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(11):278-286
ObjectiveTo analyze the characteristic expression patterns of six neurotransmitters including 5-hydroxytryptamine (5-HT), dopamine (DA), acetylcholine (ACh), norepinephrine (NE), inhibitory neurotransmitter (INH), and excitatory neurotransmitter (EXC) in the whole brain and different brain regions of depression patients by Search of Encephalo Telex (SET), providing new ideas for the study of heterogeneous etiology of depression. Methods(1) A retrospective study was conducted on supra-slow signals of EEG fluctuations in 1 028 patients with depression. The SET system was used to obtain the expression information of six neurotransmitters in the whole brain and 12 brain regions: left frontal region (F3), right frontal region (F4), left central region (C3), right central region (C4), left parietal region (P3), right parietal region (P4), left occipital region (O1), right occipital region (O2), left anterior temporal region (F7), right anterior temporal region (F8), left posterior temporal region (T5), and right posterior temporal region (T6). The expression information of each neurotransmitter was compared with the normal model, and it was found that single neurotransmitter was in one of three states: increased, decreased, or normal expression. The simultaneous expression states of six neurotransmitters in the brain space were referred to as the expression pattern of multiple neurotransmitters. (2) A MySQL database was established to analyze the actual expression patterns of different neurotransmitters in the whole brain of patients with depression. (3) Factor analysis was conducted to further analyze the characteristic rules of 78 variables of neurotransmitters in the whole brain and 12 brain regions in depression patients. Results(1) The expression of single neurotransmitters in the whole brain and different brain regions of the total depression population showed one of three expression states (increased/decreased/normal), being normal in the majority. The decreased and increased expression of 5-HT, ACh, DA, INH, EXC, and NE in the whole brain occurred in 6% and 25%, 31% and 17%, 36% and 9%, 15% and 31%, 32% and 14%, and 22% and 22%, respectively. (2) The antagonizing pairs of neurotransmitters (EXC/INH, DA/5-HT, and ACh/NE) showed significant antagonistic relationships in the whole brain and different brain regions, with a strong negative correlation between EXC and INH (P<0.01, |r| values ranging from 0.69 to 0.76), a strong negative correlation between DA and 5-HT (P<0.01, |r| values ranging from 0.83 to 0.90), and a moderate negative correlation between ACh and NE (P<0.01, with |r| values ranging from 0.56 to 0.66). Meanwhile, non-antagonizing pairs of neurotransmitters in the whole brain and different brain regions also showed correlations, with DA/NE (P<0.01, |r| values ranging from 0.38 to 0.46) and NE/EXC (P<0.01, |r| values ranging from 0.56 to 0.61) showing weak and moderate negative correlations, respectively, and DA/EXC showing a weak positive correlation (P<0.01, |r| values ranging from 0.38 to 0.47). (3) The six neurotransmitters in the 1 028 patients with depression presented a total of 170 expression patterns in the whole brain. The top 30 expression patterns were reported in this paper, with a cumulative rate of 60.60%, including patterns ① INH+/5-HT-/ACh+/DA+/NE-/EXC- (9.05%), ② INH+/5-HT-/ACh↓/DA+/NE-/EXC- (4.57%), and ③ INH+/5-HT-/ACh+/DA+/NE↓/EXC- (3.31%). That is, the proportion of depression patients with normal levels of all the six neurotransmitters was 9.05%, and the patients with at least one neurotransmitter abnormality accounted for 91.95%. (4) The factor analysis extracted 22 common factors from 78 variables in the whole brain and different brain regions. These common factors showed the absolute values of loadings ranging from 0.32 to 0.86 and the eigenvalues (F) ranging from 1.03 to 13.43, with a cumulative contribution rate of 76.82%. The characteristic expression patterns included ① AChP3↓/AChW↓/AChC3↓/AChF3↓/AChO1↓/AChT5↓/AChF7↓/NEP3↑/NEW↑/NEC3↑/NEF3↑/NEO1↑/NET5↑/NEF7↑ (F=13.43, whole brain), ② 5-HTO2↑/DAO2↓/5-HTP4↑/DAP4↓/5-HTW↑/DAW↓/5-HTC4↑/DAC4↓ (F=5.94), and ③ EXCF4↓/DAF4↓/NEF4↑/INHF4↑/5-HTF4↑/AChF4↓ (F=5.33). ConclusionThe actual 170 expression patterns of 6 neurotransmitters in the whole brain of 1 028 depression patients indicate that depression is a heterogeneous disease with individualized characteristics. The 22 characteristic expression patterns in the whole brain and 12 brain regions verify the pathogenesis hypothesis of multi-neurotransmitters oscillation imbalance in brains of depression patients. In summary, this study provides new guidance for the etiology, diagnosis, and treatment of depression and establishes a methodological foundation for the effectiveness evaluation of individualized treatment of depression by traditional Chinese medicine based on the objective biological markers.
5.Programmed death-ligand 1 tumor proportion score in predicting the safety and efficacy of PD-1/PD-L1 antibody-based therapy in patients with advanced non-small cell lung cancer: A retrospective, multicenter, observational study.
Yuequan SHI ; Xiaoyan LIU ; Anwen LIU ; Jian FANG ; Qingwei MENG ; Cuimin DING ; Bin AI ; Yangchun GU ; Cuiying ZHANG ; Chengzhi ZHOU ; Yan WANG ; Yongjie SHUI ; Siyuan YU ; Dongming ZHANG ; Jia LIU ; Haoran ZHANG ; Qing ZHOU ; Xiaoxing GAO ; Minjiang CHEN ; Jing ZHAO ; Wei ZHONG ; Yan XU ; Mengzhao WANG
Chinese Medical Journal 2025;138(14):1730-1740
BACKGROUND:
This study aimed to investigate programmed death-ligand 1 tumor proportion score in predicting the safety and efficacy of PD-1/PD-L1 antibody-based therapy in treating patients with advanced non-small cell lung cancer (NSCLC) in a real-world setting.
METHODS:
This retrospective, multicenter, observational study enrolled adult patients who received PD-1/PD-L1 antibody-based therapy in China and met the following criteria: (1) had pathologically confirmed, unresectable stage III-IV NSCLC; (2) had a baseline PD-L1 tumor proportion score (TPS); and (3) had confirmed efficacy evaluation results after PD-1/PD-L1 treatment. Logistic regression, Kaplan-Meier analysis, and Cox regression were used to assess the progression-free survival (PFS), overall survival (OS), and immune-related adverse events (irAEs) as appropriate.
RESULTS:
A total of 409 patients, 65.0% ( n = 266) with a positive PD-L1 TPS (≥1%) and 32.8% ( n = 134) with PD-L1 TPS ≥50%, were included in this study. Cox regression confirmed that patients with a PD-L1 TPS ≥1% had significantly improved PFS (hazard ratio [HR] 0.747, 95% confidence interval [CI] 0.573-0.975, P = 0.032). A total of 160 (39.1%) patients experienced 206 irAEs, and 27 (6.6%) patients experienced 31 grade 3-5 irAEs. The organs most frequently associated with irAEs were the skin (52/409, 12.7%), thyroid (40/409, 9.8%), and lung (34/409, 8.3%). Multivariate logistic regression revealed that a PD-L1 TPS ≥1% (odds ratio [OR] 1.713, 95% CI 1.054-2.784, P = 0.030) was an independent risk factor for irAEs. Other risk factors for irAEs included pretreatment absolute lymphocyte count >2.5 × 10 9 /L (OR 3.772, 95% CI 1.377-10.329, P = 0.010) and pretreatment absolute eosinophil count >0.2 × 10 9 /L (OR 2.006, 95% CI 1.219-3.302, P = 0.006). Moreover, patients who developed irAEs demonstrated improved PFS (13.7 months vs. 8.4 months, P <0.001) and OS (28.0 months vs. 18.0 months, P = 0.007) compared with patients without irAEs.
CONCLUSIONS
A positive PD-L1 TPS (≥1%) was associated with improved PFS and an increased risk of irAEs in a real-world setting. The onset of irAEs was associated with improved PFS and OS in patients with advanced NSCLC receiving PD-1/PD-L1-based therapy.
Humans
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Carcinoma, Non-Small-Cell Lung/metabolism*
;
Male
;
Female
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Retrospective Studies
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Middle Aged
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Lung Neoplasms/metabolism*
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Aged
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B7-H1 Antigen/metabolism*
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Programmed Cell Death 1 Receptor/metabolism*
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Adult
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Aged, 80 and over
;
Immune Checkpoint Inhibitors/therapeutic use*
6.Expert consensus on surgical treatment and rehabilitation for competitive sports athletes returning to sports after anterior cruciate ligament injury (version 2025)
Kai HUANG ; Lunhao BAI ; Qing BI ; Hong CHEN ; Jiwu CHEN ; Xuesong DAI ; Wenyong FEI ; Weili FU ; Zhizeng GAO ; Lin GUO ; Yinghui HUA ; Jingmin HUANG ; Suizhu HUANG ; Xuan HUANG ; Jian LI ; Qiang LI ; Shuzhen LI ; Yanlin LI ; Yunxia LI ; Zhong LI ; Ning LIU ; Yuqiang LIU ; Wei LU ; Hongbin LYU ; Haile PAN ; Xiaoyun PAN ; Chao QI ; Weiliang SHEN ; Luning SUN ; Jin TANG ; Zimin WANG ; Bide WANG ; Ru WANG ; Shaobai WANG ; Licheng WEI ; Weidong XU ; Yongsheng XU ; Jizhou YANG ; Liang YANG ; Rui YANG ; Hongbo YOU ; Tengbo YU ; Jiakuo YU ; Bing YUE ; Hua ZHANG ; Hui ZHANG ; Qingsong ZHANG ; Xintao ZHANG ; Jiajun ZHAO ; Lilian ZHAO ; Qichun ZHAO ; Song ZHAO ; Jiapeng ZHENG ; Jiang ZHENG ; Zhi ZHENG ; Jingbin ZHOU ; Jinzhong ZHAO
Chinese Journal of Trauma 2025;41(4):325-338
With the rapid development of competitive sports, the incidence of anterior cruciate ligament (ACL) injury is on the rise. Such injuries may shorten athletes′ career and lead to other long-term adverse consequences. Although athletes generally recover well after ACL reconstruction, many still struggle to return to their pre-injury performance levels. Advances in the understanding of ACL anatomy and injury mechanisms, along with the evolution of surgical techniques and rehabilitation methods, have provided more individualized and tailored options for athletes following ACL injuries. However, there is currently no consensus in China regarding surgical and rehabilitation strategies for competitive athletes aiming to return to sports after ACL injuries. To this end, the Sports Medicine Committee of the Chinese Research Hospital Association and the Editorial Board of the Chinese Journal of Trauma jointly formulated the Expert consensus on surgical treatment and rehabilitation for competitive sports athletes returning to sports after anterior cruciate ligament injury ( version 2025), and presented 14 recommendations covering surgical indications, preoperative rehabilitation, surgical timing, surgical strategies and postoperative rehabilitation strategies, aiming to improve the surgical treatment and rehabilitation system for ACL injuries in competitive athletes and facilitate their return to high-level sports performance after injury.
7.Expert Consensus on Clinical Application of Qinbaohong Zhike Oral Liquid in Treatment of Acute Bronchitis and Acute Attack of Chronic Bronchitis
Jian LIU ; Hongchun ZHANG ; Chengxiang WANG ; Hongsheng CUI ; Xia CUI ; Shunan ZHANG ; Daowen YANG ; Cuiling FENG ; Yubo GUO ; Zengtao SUN ; Huiyong ZHANG ; Guangxi LI ; Qing MIAO ; Sumei WANG ; Liqing SHI ; Hongjun YANG ; Ting LIU ; Fangbo ZHANG ; Sheng CHEN ; Wei CHEN ; Hai WANG ; Lin LIN ; Nini QU ; Lei WU ; Dengshan WU ; Yafeng LIU ; Wenyan ZHANG ; Yueying ZHANG ; Yongfen FAN
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(4):182-188
The Expert Consensus on Clinical Application of Qinbaohong Zhike Oral Liquid in Treatment of Acute Bronchitis and Acute Attack of Chronic Bronchitis (GS/CACM 337-2023) was released by the China Association of Chinese Medicine on December 13th, 2023. This expert consensus was developed by experts in methodology, pharmacy, and Chinese medicine in strict accordance with the development requirements of the China Association of Chinese Medicine (CACM) and based on the latest medical evidence and the clinical medication experience of well-known experts in the fields of respiratory medicine (pulmonary diseases) and pediatrics. This expert consensus defines the application of Qinbaohong Zhike oral liquid in the treatment of cough and excessive sputum caused by phlegm-heat obstructing lung, acute bronchitis, and acute attack of chronic bronchitis from the aspects of applicable populations, efficacy evaluation, usage, dosage, drug combination, and safety. It is expected to guide the rational drug use in medical and health institutions, give full play to the unique value of Qinbaohong Zhike oral liquid, and vigorously promote the inheritance and innovation of Chinese patent medicines.
8.Applications of Vaterite in Drug Loading and Controlled Release
Xiao-Hui SONG ; Ming-Yu PAN ; Jian-Feng XU ; Zheng-Yu HUANG ; Qing PAN ; Qing-Ning LI
Progress in Biochemistry and Biophysics 2025;52(1):162-181
Currently, the drug delivery system (DDS) based on nanomaterials has become a hot interdisciplinary research topic. One of the core issues is drug loading and controlled release, in which the key lever is carriers. Vaterite, as an inorganic porous nano-material, is one metastable structure of calcium carbonate, full of micro or nano porous. Recently, vaterite has attracted more and more attention, due to its significant advantages, such as rich resources, easy preparations, low cost, simple loading procedures, good biocompatibility and many other good points. Vaterite, gained from suitable preparation strategies, can not only possess the good drug carrying performance, like high loading capacity and stable loading efficiency, but also improve the drug release ability, showing the better drug delivery effects, such as targeting release, pH sensitive release, photothermal controlled release, magnetic assistant release, optothermal controlled release. At the same time, the vaterite carriers, with good safety itself, can protect proteins, enzymes, or other drugs from degradation or inactivation, help imaging or visualization with loading fluorescent drugs in vitro and in vivo, and play synergistic effects with other therapy approaches, like photodynamic therapy, sonodynamic therapy, and thermochemotherapy. Latterly, some renewed reports in drug loading and controlled release have led to their widespread applications in diverse fields, from cell level to clinical studies. This review introduces the basic characteristics of vaterite and briefly summarizes its research history, followed by synthesis strategies. We subsequently highlight recent developments in drug loading and controlled release, with an emphasis on the advantages, quantity capacity, and comparations. Furthermore, new opportunities for using vaterite in cell level and animal level are detailed. Finally, the possible problems and development trends are discussed.
9.Relationship Between CMTM4 Expression and Clinicopathological Features in Cervical Cancer and the Study of Mechanism
Jian-Hui LIU ; Jing ZHOU ; Hai-Yan WANG ; An-Qi YANG ; Xiao-Ying A ; Jia-Liang WANG ; Qing-Fen MU
Chinese Journal of Biochemistry and Molecular Biology 2025;41(2):296-304
Abnormal expression of CMTM4 protein is closely related to tumour occurrence,development and prognosis.Although the important role of CMTM4 in tumours has been gradually manifested,its spe-cific mechanism of action in cervical cancer remains unclear.The aim of this study was to investigate the relationship between CMTM4 expression and clinicopathological features in cervical cancer and study its mechanism.Immunohistochemistry and Western blot were used to detect the expression level of CMTM4 in cancer tissues and paracancerous tissues,and it was found that CMTM4 was significantly under-ex-pressed in cervical cancer tissues(P<0.001).The chi-square test analysed the relationship between high and low CMTM4 expression and the clinical and pathological characteristics of cervical cancer pa-tients and results found that CMTM4 expression was correlated with the number of births,HPV infection status,pathological type,FIGO stage and lymph node metastasis.Data from Western blot and RT-qPCR found that CMTM4 protein and mRNA levels in HaCaT cells were significantly higher than that of C-33A cells,HeLa cells,U14 cells,and HT-3 cells.Among them,the most significant change in CMTM4 ex-pression was observed in C-33A cells,so the C-33A cell line was selected for subsequent overexpression experiments.CCK-8 analysis found that the proliferation ability of C-33A cervical cancer cells in the pcDNA-CMTM4 group was significantly lower than that in the pcDNA-NC group(P<0.001).Flow cy-tometry and Western blot results indicated that CMTM4 overexpression promoted apoptosis(P<0.001),significantly increased Bax(P<0.001)and cleaved caspase 3(P<0.05)protein levels,and significant-ly decreased Bcl-2 protein level(P<0.01).Western blot results further found that CMTM4 overexpres-sion significantly reduced the protein levels of p-PI3K(P<0.001)and p-AKT(P<0.01),but did not affect the protein levels of PI3K and AKT(P>0.05).The above findings indicated that CMTM4 gene expression was down-regulated in cervical cancer,and CMTM4 overexpression inhibited cervical cancer cell proliferation and induced apoptosis by inhibiting the PI3K/AKT pathway.Therefore,CMTM4 may be used as a biological marker for screening cervical cancer.
10.Research of Subtype A Caused by New A Allele Mutation
Li-Ping ZOU ; Fang QIU ; Jian-Shuo LIU ; Zhi-Peng WU ; Feng-Qing ZHANG ; Ying ZHU
Journal of Experimental Hematology 2025;33(6):1765-1768
Objective:In order to clarify the ABO phenotype and genotype,and explore the molecular biological mechanism,serological detection,genotyping and gene sequencing were performed on an upper gastrointestinal hemorrhage patient with inconsistent forward and reverse ABO blood typing.Methods:ABO forward and reverse blood typing,H antigen identification,capillary centrifugation test and salivary substance detection were performed by classical serological method,moreover,polymerase chain reaction-sequence specific primer(PCR-SSP)was used for ABO genotyping,ABO gene 1-7 exons were sequenced by Sanger analysis in order to identify mutation.Results:Mixed field agglutination with anti-A,anti-AB and no agglutination with anti-A1 were appeared in the forward typing tests,agglutination with B cells but no agglutination with A1 cells and O cells were appeared in the reverse typing tests.3+agglutination strength was showed with anti-H.In capillary centrifugation experiment,erythrocyte after isolation in proximal part and distal end had same strength of agglutination with anti-A.Substances A and H were detected in saliva.The patient was assigned an A3 phenotype according to serological characteristics.Sequencing results of ABO gene 1-7 exons showed c.261delG,c.467C>T,c.865A>G,in which,865A>G was the first discovered mutation,and this new mutation had been submitted to GenBank with accession number PP187306.Conclusion:A novel site mutation c.865A>G is reported in this study,and this new mutation can result in a replacement of Met with Val at residue 289(p.Met289Val)and lead to an A3 phenotype.

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