1.Causal relationship between age-related macular degeneration and deep vein thrombosis:analysis based on genome-wide association study data
Hongtao LIU ; Xin WU ; Xinyu JIANG ; Fei SHA ; Qi AN ; Gaobiao LI
Chinese Journal of Tissue Engineering Research 2026;30(6):1602-1608
BACKGROUND:Age-related macular degeneration and deep vein thrombosis may share common pathophysiological mechanisms,but there is a lack of direct evidence regarding their relationship.Traditional studies are confounded by confounding factors and reverse causation.OBJECTIVE:To investigate the causal relationship between age-related macular degeneration and deep vein thrombosis based on Mendelian randomization design.METHODS:Through a two-way Mendelian randomization analysis,single nucleotide polymorphisms of exposure and outcomes were obtained from publicly available genome-wide association studies,with deep vein thrombosis data from the FinnGen database in a European population with a sample size of 363 612 and 1 048 575 single nucleotide polymorphisms.In addition,we obtained data on age-related macular degeneration from the IEUOpenGWAS project,also from a European population sample of 105 248 cases covering 11 304 110 single nucleotide polymorphisms.In R4.4.1,we used the TwoSampleMR package(version 0.6.8)to explore the causal effects of exposure factors on outcomes.At the same time,we also conducted a sensitivity analysis via MR-Egger regression,weighted median,weighted model and simple model methods to ensure that the assessment results were robust and reliable.In addition,we used the"heterogeneity"function to test for heterogeneity,and the"horizontal pleiotropy"function and the MR-PRESSO test to further assess horizontal pleotropy.The Cochran's Q test was used to determine whether there was statistical heterogeneity between single nucleotide polymorphisms,and the leave-one-out method was used to assess whether single nucleotide polymorphisms would significantly interfere with Mendelian randomization analysis.Funnel plots were drawn to assess the potential bias of single nucleotide polymorphisms.Forest plots were plotted to show the effect estimates of single nucleotide polymorphisms on exposure and outcomes,and their confidence intervals were plotted.Scatter plots were plotted to evaluate the relationship between the potency of single nucleotide polymorphisms and their causal effect size on outcome estimates.RESULTS AND CONCLUSION:Both forward and reverse studies showed that there was no causal association between age-related macular degeneration and the occurrence of deep vein thrombosis(P>0.05).Sensitivity analysis showed that the main analysis results were reliable and robust,with no outliers,heterogeneity,and horizontal pleiotropy,and no single nucleotide polymorphism significantly affected the overall effect estimate.Although it is based on European population data,it has methodological reference value for Chinese biomedical research on complex disease associations.In this field,China can carry out multi-center large-sample studies,accurately analyze the internal links between Chinese population-related diseases,and provide a basis for prevention and treatment strategies and clinical practice.
2.Mechanisms of Anemarrhenae Rhizoma Water Extract in Ameliorating Neuroinflammation in Alzheimer's Disease Model Rats via SIRT1/HMGB1/NF-κB Signaling Pathway
Fei WU ; Yuexia LI ; Qi HUANG ; Tianshi LI ; Chuanshan JIN ; Kai MA
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(7):230-240
ObjectiveTo investigate the therapeutic effects of the Anemarrhenae Rhizoma water extract (AR) on Alzheimer's disease (AD) model rats and to explore its potential underlying mechanisms. MethodsMale rats were intraperitoneally injected with D-galactose (100 mg·kg-1) for 42 days, and on day 14, 1 μL of β-amyloid (Aβ25-35, 2 g·L-1) solution was injected into the hippocampus. Rats were randomly divided into a model group, low-dose AR (0.6 g·kg-1), medium-dose AR (1.2 g·kg-1), high-dose AR (2.4 g·kg-1), and a positive control group (donepezil, 5 mg·kg-1). Healthy rats receiving only a hippocampal injection of 1 μL of sterile saline served as the sham-operated group. From day 21, rats in the treatment groups were administered the corresponding drugs by gavage once daily for 21 consecutive days, while the blank control and model groups received an equal volume of saline. Learning and memory abilities were assessed using the Morris water maze. Brain tissue damage was observed by hematoxylin and eosin (HE) staining, and neuronal apoptosis was evaluated by terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL) staining. Levels of interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), and interleukin-10 (IL-10) in brain tissues were measured by enzyme-linked immunosorbent assay (ELISA). BV2 microglial cells were co-cultured with Aβ25-35 (40 μmol·L-1) for 2 h, and cell viability was determined by the CCK-8 assay to screen the optimal concentration of AR-containing serum (S-AR). Cells were divided into blank control, Aβ25-35, S-AR, EX527 [silent information regulator 1 (SIRT1) inhibitor], and S-AR+EX527 groups. Immunofluorescence staining was used to detect the expression of CD16, CD206, and high-mobility group box 1 (HMGB1). Western blot analysis was performed to measure the protein expression of CD16, inducible nitric oxide synthase (iNOS), CD206, arginase (Arg), and proteins related to the SIRT1/HMGB1/nuclear factor-κB (NF-κB) signaling pathway. ResultsIn vivo experiments showed that, compared with the sham-operated group, the model group exhibited reduced platform crossings and time spent in the target quadrant (P<0.01), prolonged escape latency, increased hippocampal neuronal apoptosis (P<0.01), and obvious hippocampal damage. The expression levels of IL-6, TNF-α, IL-10, CD16, and iNOS in brain tissues were significantly elevated (P<0.01), while CD206 and Arg protein expression showed an increasing trend without statistical significance. Compared with the model group, all AR-treated groups significantly increased platform crossings and target quadrant time (P<0.05, P<0.01), alleviated hippocampal damage, reduced escape latency and neuronal apoptosis, downregulated the expression of TNF-α, IL-6, CD16, and iNOS (P<0.05, P<0.01), and upregulated the expression of IL-10, CD206 and Arg (P<0.05, P<0.01). In vitro experiments demonstrated that, compared with the blank control group, the Aβ25-35 group showed increased fluorescence intensity of CD206, CD16, and HMGB1, as well as elevated protein expression of iNOS and CD16 (P<0.01), while CD206 and Arg protein expression exhibited an increasing trend without statistical significance. After S-AR intervention, CD206 fluorescence intensity and the protein expression of Arg and CD206 were significantly increased (P<0.01), whereas the fluorescence intensity of CD16 and HMGB1 and the protein expression of iNOS and CD16 were significantly decreased (P<0.01). These effects were reversed by EX527 (P<0.05, P<0.01). Furthermore, compared with the blank control group, the Aβ25-35 group showed significantly increased cytoplasmic HMGB1 expression and p-p65/p65 ratio (P<0.01), along with significantly decreased SIRT1 and nuclear HMGB1 expression (P<0.01). In contrast, the S-AR group exhibited opposite trends compared with the Aβ25-35 group, and the regulatory effects of S-AR on these proteins were reversed by EX527 (P<0.01). ConclusionAR exerts neuroprotective effects in AD model rats by regulating microglial polarization and alleviating neuroinflammation, potentially through modulation of the SIRT1/HMGB1/NF-κB signaling pathway.
3.Research Tackling Paradigm and Technological Layout Strategies Based on Erectile Dysfunction, A Clinical Dominant Disease of Traditional Chinese Medicine
Qi ZHAO ; Yun CHEN ; Baoxing LIU ; Xuejun SHANG ; Fei SUN ; Xiaozhi ZHAO ; Zhigang WU ; Chao SUN ; Peihai ZHANG ; Wanjun CHENG ; Xing ZHOU ; Zhan QIN ; Yufeng PAN ; Weiwei TAO ; Jianhuai CHEN ; Mei MO ; Xiaoxiao ZHANG ; Xing ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(7):291-299
To thoroughly implement the strategic deployment outlined in the Opinions of the Central Committee of the Communist Party of China and the State Council on Promoting the Inheritance and Innovative Development of Traditional Chinese Medicine regarding research on dominant diseases of traditional Chinese medicine and to uphold the development philosophy of equal emphasis on traditional Chinese medicine and western medicine,the China Association of Chinese Medicine has fully played a leading academic role by systematically organizing and conducting a series of academic youth salons on clinical dominant diseases of traditional Chinese medicine. On September 13,2024,the 36th Youth Salon on Clinical Dominant Diseases was successfully held in Nanjing,focusing on the advantages of traditional Chinese medicine and the integrative traditional Chinese medicine and western medicine in the diagnosis and treatment of erectile dysfunction (ED). The conference brought together leading experts from traditional Chinese medicine,western medicine,and interdisciplinary fields,facilitating in-depth multidisciplinary discussions that led to key consensus on optimizing traditional Chinese medicine treatment protocols for ED,researching and developing new drugs of traditional Chinese medicine,and advancing interdisciplinary development in traditional Chinese medicine. This salon systematically sorted out the clinical strengths and distinctive features of traditional Chinese medicine in the diagnosis and treatment of ED. Based on current research foundations and clinical needs,it identified key directions for future scientific layout and scientific research tackling: (1) Standardization of syndrome differentiation system of traditional Chinese medicine for ED. (2) Optimization and standardization of intervention methods of integrated traditional Chinese medicine and western medicine. (3) High-quality clinical research guided by evidence-based medicine. (4) In-depth analysis of the pharmacological mechanisms of traditional Chinese medicine in the treatment of ED. (5) Clinical translation and application promotion of new drugs of traditional Chinese medicine. (6) Interdisciplinary integration and innovation in traditional Chinese medicine. For each research direction,key focus areas,expected objectives,and clinical value were further refined,along with the establishment of a scientifically sound priority funding level evaluation system. Therefore,building on the series of salons on the ED-focused dominant diseases of traditional Chinese medicine,this paper provides standardized guidance for clinical practice of traditional Chinese medicine in ED management,effectively contributing to the high-quality development of traditional Chinese medicine. It serves as a valuable reference for national scientific and technological strategic layout, research and development decision-making in new drugs of traditional Chinese medicine,research topic planning,and clinical guideline formulation.
4.Causal relationship between age-related macular degeneration and deep vein thrombosis:analysis based on genome-wide association study data
Hongtao LIU ; Xin WU ; Xinyu JIANG ; Fei SHA ; Qi AN ; Gaobiao LI
Chinese Journal of Tissue Engineering Research 2026;30(6):1602-1608
BACKGROUND:Age-related macular degeneration and deep vein thrombosis may share common pathophysiological mechanisms,but there is a lack of direct evidence regarding their relationship.Traditional studies are confounded by confounding factors and reverse causation.OBJECTIVE:To investigate the causal relationship between age-related macular degeneration and deep vein thrombosis based on Mendelian randomization design.METHODS:Through a two-way Mendelian randomization analysis,single nucleotide polymorphisms of exposure and outcomes were obtained from publicly available genome-wide association studies,with deep vein thrombosis data from the FinnGen database in a European population with a sample size of 363 612 and 1 048 575 single nucleotide polymorphisms.In addition,we obtained data on age-related macular degeneration from the IEUOpenGWAS project,also from a European population sample of 105 248 cases covering 11 304 110 single nucleotide polymorphisms.In R4.4.1,we used the TwoSampleMR package(version 0.6.8)to explore the causal effects of exposure factors on outcomes.At the same time,we also conducted a sensitivity analysis via MR-Egger regression,weighted median,weighted model and simple model methods to ensure that the assessment results were robust and reliable.In addition,we used the"heterogeneity"function to test for heterogeneity,and the"horizontal pleiotropy"function and the MR-PRESSO test to further assess horizontal pleotropy.The Cochran's Q test was used to determine whether there was statistical heterogeneity between single nucleotide polymorphisms,and the leave-one-out method was used to assess whether single nucleotide polymorphisms would significantly interfere with Mendelian randomization analysis.Funnel plots were drawn to assess the potential bias of single nucleotide polymorphisms.Forest plots were plotted to show the effect estimates of single nucleotide polymorphisms on exposure and outcomes,and their confidence intervals were plotted.Scatter plots were plotted to evaluate the relationship between the potency of single nucleotide polymorphisms and their causal effect size on outcome estimates.RESULTS AND CONCLUSION:Both forward and reverse studies showed that there was no causal association between age-related macular degeneration and the occurrence of deep vein thrombosis(P>0.05).Sensitivity analysis showed that the main analysis results were reliable and robust,with no outliers,heterogeneity,and horizontal pleiotropy,and no single nucleotide polymorphism significantly affected the overall effect estimate.Although it is based on European population data,it has methodological reference value for Chinese biomedical research on complex disease associations.In this field,China can carry out multi-center large-sample studies,accurately analyze the internal links between Chinese population-related diseases,and provide a basis for prevention and treatment strategies and clinical practice.
5.Application of shockwave balloon in the treatment of TASCⅡ C/D femoropopliteal atherosclerosis obliterans
Yi HE ; Hongyu WU ; Shanshan DING ; Yanqing QI ; Fei WU ; Xiaoyang NIU ; Yanling WANG ; Weilong LU ; Bing WANG
Chinese Journal of Radiology 2025;59(5):572-576
Objective:To evaluate the short-and medium-term therapeutic efficacy of shockwave balloon therapy for TASCⅡ C/D femoropopliteal artery atherosclerosis obliteration.Methods:This retrospective cohort study included 25 patients who received shockwave balloon therapy in five vascular centers from August 2022 to June 2023. All patients were diagnosed with TASC Ⅱ C/D femoropopliteal arteriosclerosis obliterans (13 cases of type C and 12 cases of type D), and underwent intravascular shock wave lithotripsy (IVL) to treat calcified lesions. The immediate effectiveness (residual stenosis<30% and no flow-limiting dissection), safety (whether there were adverse vascular events during the operation) and the rate of salvage stent implantation were recorded. The observation indexes of patients before operation, early postoperative period (immediately after operation or before discharge) and postoperative follow-up period (3, 6, 12 months after operation) were collected. The observation indexes included ankle-brachial index (ABI), Rutherford classification, and minimum lumen diameter (MLD). Repeated measures ANOVA was used to evaluate the changes of observation indexes in the early postoperative and follow-up stages compared with those before operation; Kaplan-Meier survival analysis was used to evaluate the one-stage patency rate at follow-up and the target lesion revascularization rate free from clinical drive.Results:The immediate effectiveness of surgery was 100% in all patients, with no vascular related adverse events occurred, and no remedial stent implantation was performed. The ABI, Rutherford grade and MLD of the patients in the early postoperative period and each follow-up stage were improved compared with those before operation, with statistically significant differences ( P<0.05). Kaplan-Meier survival analysis showed that the primary patency rate at 12 months after surgery was 0.78 (95% CI 0.64-0.84), and the revascularization rate of target lesions free from clinical drive was 0.87 (95% CI 0.85-0.95). Conclusion:Shockwave balloon therapy for complex calcified femoropopliteal artery lesions is safe and reliable, with satisfactory short-and medium-term efficacy.
6.Exploring the risk of tumor invasion and metastasis in cervical cancer based on ex-tracellular vesicle DNA methylation biomarkers
Weiwei HE ; Yan ZHAO ; Neng LI ; Qi XIE ; Fei WU
Chinese Journal of Clinical and Experimental Pathology 2025;41(4):474-482
Purpose To investigate the predictive value of the methylation regulator heterogeneous nuclear ribonu-cleoprotein C(HNRNPC)in the extracellular vesicles(EVs)derived from cervical cancer cells for tumor invasion and metastasis.Methods In vitro experiments were conducted using a human normal cervical epithelial cell line(Hcer-Epic),three cervical cancer cell lines(HeLa,SiHa and CaSki)and human umbilical vein endothelial cells(HU-VECs).HNRNPC protein expression was assessed by Western blot.CaSki cells were transfected with either sh-NC or sh-HNRNPC,and EVs were subsequently isolated from culture supernatant.The effects of EVs on the proliferation,migration and invasion of SiHa cells,as well as on angiogenesis in HUVECs,were investigated respectively.For tissue microarray analysis,normal cervical tissues(n=8),low-grade squamous intraepithelial lesions(LSIL,n=32)and high-grade squamous intraepithelial lesions(HSIL,n=37),and cervical carcinoma specimens(n=153)were ob-tained from our institution.Based on HNRNPC immunoscores,cervical cancer patients were divided into two groups:high(n=99)and low(n=54)HNRNPC expression group,and their clinicopathological features and prognosis were compared.Results Compared with HcerEpic cells,the expression of HNRNPC increased in SiHa,HeLa and CaSki cells.In SiHa cells treated with EVs from CaSki cell,the group receiving EVs from sh-HNRNPC-transfected CaSki cells showed significantly reduced proliferation,colony formation,migration,and invasion compared with the sh-NC-EVs group(P<0.05).Similarly,in HUVECs treated with CaSki-EVs,compared with sh-NC-EVs group,the sh-HNRNPC-EVs group demonsteated significantly lower protein expression of PCNA and VEGFA and reduced angiogene-sis length(P<0.05).HNRNPC expression gradually increased during the transformation of cervical epithelial cells(F=106.9,P<0.001),and was significantlyelevated in HSIL and cervical cancer tissues compared with normal tis-sues(P<0.001).Moreover,in cervical cancer,high HNRNPC expression was significantly related to poorer cellular differentiation,larger tumor size,parametrial and vaginal infiltration,advanced FIGO stage,and pelvic lymph node metastasis(P<0.05).Kaplan-Meier analysis showed that that patients with high HNRNPC expression had significant-ly shorter overall survival post-surgery compared with those with low expression(P<0.05).Conclusion EVs contai-ning HNRNPC contribute to cervical cancer progression by promoting tumor growth,invasion,and angiogenesis,there-by accelerating metastasis.In addition,high HNRNPC expression in cervical cancer tissue is related to poor prognosis of patients,indicating that EV-associated HNRNPC may serve as a potential therapeutic target.
7.Application of cold snare endoscopic mucosal resection in treating small colorectal polyps
Fei DING ; Hao GUO ; Chong-bin QI ; Shao-jun XU ; Feng LI ; Ping WU ; Qing DONG
Journal of Regional Anatomy and Operative Surgery 2025;34(4):333-337
Objective To investigate the application effect of cold snare endoscopic mucosal resection(CS-EMR)in the treatment of 6 to 9 mm colorectal small polyps.Methods A total of 82 patients with small colonic polyps in our hospital from March 2022 to August 2023 were collected and divided into the observation group(45 cases received CS-EMR)and the control group[37 cases received hot snare endoscopic mucosal resection(HS-EMR)]according to different surgical methods.The clinical efficacy,polyp resection status,complete polyp resection rate,perioperative indicators and occurrence of complications were compared between the two groups.Results Follow-up for 1 month after operation,the effective rate of treatment in the observation group was higher than that in the control group(P<0.05).There was no statistically significant difference in the polyp resection status or perioperative indicators between the two groups(P>0.05).There was no statistically significant difference in the complete polyp resection rates of patients with different pathological types or total complete resection rate between the two groups(P>0.05).The incidence of delayed bleeding and endoscopic hemostasis rate in the observation group were lower than those in the control group(P<0.05).Conclusion The complete resection rate of 6~9 mm colorectal polyps through CS-EMR was comparable to that of HS-EMR,and CS-EMR has a better efficacy and lower risk of perioperative bleeding,along with higher safety.
8.Clinical effects of Jinfukang Oral Liquid combined with thymosin α1 on patients with non-small cell lung cancer due to Dual Deficiency of Qi and Yin
Guan-jin WU ; Mo-fei HUANG ; Ao QI ; Xue-qi TIAN ; De-cai WANG ; Li-jing JIAO ; Ling XU
Chinese Traditional Patent Medicine 2025;47(3):790-795
AIM To explore the clinical effects of Jinfukang Oral Liquid combined with thymosin α1 on patients with non-small cell lung cancer due to Dual Deficiency of Qi and Yin.METHODS Seventy-five patients were randomly assigned into thymosin α1 group(15 cases)for 4-week administration,Jinfukang Oral Liquid group(30 cases)for 4-week administration,and combination group(30 cases)for 4-week administration.The changes in TCM clinical syndrome effects,immunity indices(CD3+T,Th,CTL,total NK,CD56dim CD16+NK,NKT,Treg,MDSC),lethality/inhibition ratios(CTL/Treg,total NK/Treg,NKT/Treg,CTL/MDSC,total NK/MDSC,NKT/MDSC)and FACT-L scores were detected.RESULTS The Jinfukang Oral Liquid group and combination group demonstrated higher total effective rates than the thymosin α1 group(P<0.05).After the treatment,the Jinfukang Oral Liquid group and combination group displayed increased NKT(P<0.05)and decreased MDSC(P<0.05),which were more obvious than those in the thymosin α1 group(P<0.05),and higher NKT was observable in the Jinfukang Oral Liquid group(P<0.05);the Jinfukang Oral Liquid group and combination group displayed increased lethality/inhibition ratios(P<0.05),among which NKT/Treg,CTL/MDSC,total NK/MDSC,NKT/MDSC were higher than those in the thymosin α1 group(P<0.05),and higher CTL/MDSC,NKT/MDSC were observable in the Jinfukang Oral Liquid group(P<0.05);the Jinfukang Oral Liquid group(except for physiological status,society and family status)and combination group(except for society and family status)displayed increased FACT-L scores(P<0.05).CONCLUSION For the patients with non-small cell lung cancer due to Dual Deficiency of Qi and Yin,Jinfukang Oral Liquid single use or combined with thymosin α1 can enhance peripheral blood immune surveillance,inhibit immune escape,restore the balanced state of tumor immune responses,and improve TCM syndromes and life quality.
9.Ultrasound radiomics combined with machine learning for early diagnosis of seronegative hashimoto’s thyroiditis
Wenjun WU ; Chang LIU ; Shengsheng YAO ; Daming LIU ; Yuan LUO ; Yihan SUN ; Ting RUAN ; Mengyou LIU ; Li SHI ; Mingming XIAO ; Qi ZHANG ; Zhengshuai LIU ; Xingai JU ; Jiahao WANG ; Xiang FEI ; Li LU ; Yang GAO ; Ying ZHANG ; Liying GONG ; Xuanyu CHEN ; Wanli ZHENG ; Xiali NIU ; Xiao YANG ; Huimei CAO ; Shijie CHANG ; Zuoxin MA ; Jianchun CUI
Chinese Journal of Endocrine Surgery 2025;19(3):313-319
Objective:To evaluate the value of ultrasound radiomics combined with machine learning for early diagnosis of seronegative Hashimoto’s thyroiditis (SN-HT) .Methods:This retrospective study included 164 patients from Liaoning Provincial People’s Hospital , Lixin County People’s Hospital, Linghai Dalinghe Hospital, Fengcheng Phoenix Hospital, who underwent thyroidectomy for solitary nodules with normal thyroid function between Nov. 2016 and Jan. 2024. Postoperative pathology confirmed Hashimoto’s thyroiditis (HT) in some cases, who were further categorized into antibody-positive and antibody-negative groups based on serum antibody status. Patients without Hashimoto’s thyroiditis served as the control group. A total of 298 ultrasound images were analyzed. Radiomics features were extracted from hypoechoic non-nodular areas within 0.5 cm surrounding the tumor. Two senior pathologists and two senior ultrasound physicians independently assessed lymphocytic infiltration, eosinophilic changes of follicular epithelium, and the proportion of hypoechoic areas in pathology and ultrasound images, respectively. A machine learning model, CCH-NET, was developed using linear regression and t-distributed stochastic neighbor embedding (t-SNE) techniques. The dataset was divided into a training set (80%) and a validation set (20%) to compare the diagnostic accuracy of CCH-NET with that of senior ultrasound physicians. Results:In internal validation, CCH-NET achieved a diagnostic accuracy of 88.89% for both antibody-positive and antibody-negative groups, significantly higher than the 66.67% accuracy of senior ultrasound physicians ( P<0.01). In external validation, CCH-NET achieved 75.00% and 66.67% accuracy for the two groups, compared to 50.00% by senior ultrasound physicians. For the control group, both methods achieved 93.33% accuracy. The AUC of CCH-NET was 0.848, outperforming senior ultrasound physicians (0.681) ,demonstrating superior diagnostic performance. Conclusion:The radiomics-based CCH-NET model, using non-nodular hypoechoic areas as a specific indicator, can accurately identify early SN-HT in euthyroid patients. It significantly outperforms senior ultrasound physicians, improving diagnostic accuracy and reducing missed diagnoses.
10.Exploring the risk of tumor invasion and metastasis in cervical cancer based on ex-tracellular vesicle DNA methylation biomarkers
Weiwei HE ; Yan ZHAO ; Neng LI ; Qi XIE ; Fei WU
Chinese Journal of Clinical and Experimental Pathology 2025;41(4):474-482
Purpose To investigate the predictive value of the methylation regulator heterogeneous nuclear ribonu-cleoprotein C(HNRNPC)in the extracellular vesicles(EVs)derived from cervical cancer cells for tumor invasion and metastasis.Methods In vitro experiments were conducted using a human normal cervical epithelial cell line(Hcer-Epic),three cervical cancer cell lines(HeLa,SiHa and CaSki)and human umbilical vein endothelial cells(HU-VECs).HNRNPC protein expression was assessed by Western blot.CaSki cells were transfected with either sh-NC or sh-HNRNPC,and EVs were subsequently isolated from culture supernatant.The effects of EVs on the proliferation,migration and invasion of SiHa cells,as well as on angiogenesis in HUVECs,were investigated respectively.For tissue microarray analysis,normal cervical tissues(n=8),low-grade squamous intraepithelial lesions(LSIL,n=32)and high-grade squamous intraepithelial lesions(HSIL,n=37),and cervical carcinoma specimens(n=153)were ob-tained from our institution.Based on HNRNPC immunoscores,cervical cancer patients were divided into two groups:high(n=99)and low(n=54)HNRNPC expression group,and their clinicopathological features and prognosis were compared.Results Compared with HcerEpic cells,the expression of HNRNPC increased in SiHa,HeLa and CaSki cells.In SiHa cells treated with EVs from CaSki cell,the group receiving EVs from sh-HNRNPC-transfected CaSki cells showed significantly reduced proliferation,colony formation,migration,and invasion compared with the sh-NC-EVs group(P<0.05).Similarly,in HUVECs treated with CaSki-EVs,compared with sh-NC-EVs group,the sh-HNRNPC-EVs group demonsteated significantly lower protein expression of PCNA and VEGFA and reduced angiogene-sis length(P<0.05).HNRNPC expression gradually increased during the transformation of cervical epithelial cells(F=106.9,P<0.001),and was significantlyelevated in HSIL and cervical cancer tissues compared with normal tis-sues(P<0.001).Moreover,in cervical cancer,high HNRNPC expression was significantly related to poorer cellular differentiation,larger tumor size,parametrial and vaginal infiltration,advanced FIGO stage,and pelvic lymph node metastasis(P<0.05).Kaplan-Meier analysis showed that that patients with high HNRNPC expression had significant-ly shorter overall survival post-surgery compared with those with low expression(P<0.05).Conclusion EVs contai-ning HNRNPC contribute to cervical cancer progression by promoting tumor growth,invasion,and angiogenesis,there-by accelerating metastasis.In addition,high HNRNPC expression in cervical cancer tissue is related to poor prognosis of patients,indicating that EV-associated HNRNPC may serve as a potential therapeutic target.

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