1.Differences in deltamethrin resistance and kdr gene mutation in Culex tritaeniorhynchus population in and outside the Yellow Sea wetland
Xiao-er ZHANG ; Zhi-ming WU ; Ye TIAN ; Qian CUI ; Yu-qian JI ; Huan WANG ; Shu-juan YANG ; Yi-chao ZHAO ; Yu WANG ; Hua-yu YIN ; Yu DING ; Guo-jin YAN ; Min-sen ZHAO ; Shou-gang ZHANG ; Bing-dong SONG ; Hong-na CHEN ; Jian GAO ; Wei-fang YANG ; Yu-fu ZHANG ; Hui LIU ; Hong-liang CHU
Acta Parasitologica et Medica Entomologica Sinica 2026;33(2):101-107
Objective To gain insights into the biological characteristics of different populations of Culex tritaeniorhynchus within and around the Yellow Sea wetland from the perspective of the occurrence of resistance, we investigated the levels of resistance to deltamethrin and kdr gene mutation in the wetland and its peripheral areas. Methods Specimens were collected from Cx. tritaeniorhynchus populations at two monitoring sites in the Rare Bird National Nature Reserve and Tiaozi Ni Wetland Scenic Area, and also from two populations in Yancheng City and the Liuhe District of Nanjing, and the resistance of these mosquitoes to deltamethrin was determined using the CDC biotest bottle method. For each concentration of deltamethrin assessed, a random subset of exposed specimens was selected for amplification of the kdr gene fragment, followed by Sanger sequencing to identify and analyze resistance-associated mutations. Results The LC50 levels of deltamethrin among mosquitoes from the four populations in Luhe, Yancheng, the Rare Bird National Nature Reserve and the Tiaozi Ni Wetland Scenic Area were 2.048 5, 7.798 2, 3.473 3, and 17.695 5 mg/mL, respectively, with corresponding concentrations of deltamethrin ranging from 0.005 to 5.000,0.050 to 50.000,0.050 to 25.000 and 0.050 to 50.000 mg/mL, respectively. Furthermore, the ranges of the KT50 values were 11.76-107.43, 67.05-216.30,29.77-107.43 and 28.40-329.51 min; the 1-h knockdown rates were 34.58%-99.15%, 9.52%-43.80%, 55.09%-73.01%, and 10.09%-68.07%; and the 24-h mortality rates were 12.15%-67.52%,9.52%-79.56%,13.17%-82.21%, and 11.01%-78.99%, respectively. With respect to kdr gene mutation, we assayed a total of 63,70,59, and 57 mosquitoes for the four populations, for which we detected L1014F mutation frequencies of 14.29%, 35.00%, 20.34%, and 31.58%, respectively, with a majority of these mutations being heterozygous for resistance. In addition, five adult mosquitoes were identified has having synonymous mutations at site 1011[i. e. , AAT(asparagine)mutation to AAC(asparagine)]. Conclusions Our findings revealed the clear resistance of Cx. tritaeniorhynchus to deltamethrin in the Yancheng region of the Yellow Sea wetland, and the resistance phenotype and kdr frequency of Cx. tritaeniorhynchus in the wetland environment were comparable to those of Cx. tritaeniorhynchus in the wetland environment, thereby indicating that the resistance of different populations of Cx. tritaeniorhynchus was homogeneous under the pressure of different insecticide selection within and around the wetland. However, the underlying mechanisms need to be further studied.
2.Mechanism of cofilin in regulating prostate cancer progression and potential therapeutic strategies
Fang-zhi FU ; Li-tong WU ; En-min FENG ; Xiang ZHAO ; Neng WANG ; Biao WANG ; Qing ZHOU
Chinese Pharmacological Bulletin 2025;41(7):1206-1211
The molecular mechanisms underlying the develop-ment and metastasis of prostate cancer remain elusive.This comprehensive review delves into the intricate role of cofilin,an actin-binding protein,in the pathogenesis and progression of prostate cancer.Cofilin is a significant protein in cytoskeletal dynamics,and any dysregulation may result in the morphological changes in normal cells and the invasion and metastasis of tumor cells.Research has revealed that the activity of cofilin is regula-ted by various mechanisms,including phosphorylation/dephos-phorylation and interactions with other molecules.Moreover,this review discusses promising therapeutic interventions,such as co-filin inhibitors and gene therapy,which have demonstrated effica-cy in preclinical models.The challenge of clinically preventing the transition to castration-resistant prostate cancer and tumor metastasis is widely recognized,necessitating the development of precise drug treatments and biomarker identification.As a key regulatory protein,cofilin provides a more comprehensive refer-ence for the prevention and treatment of prostate diseases.
3.Effects of LINC00626 on proliferation,apoptosis and drug resistance of colorectal cancer SW480 cells
Liang LI ; Hao QIANG ; Shui-ri WANG ; Fu-long YU ; Song WANG ; Hui YUAN ; Ya-ru YANG ; Zhi-ning LIU
Chinese Pharmacological Bulletin 2025;41(10):1900-1905
Aim To investigate the high expression of LINC00626 in colorectal cancer,and explore the effects of LINC00626 on the proliferation,apoptosis,and drug sensitivity of colorectal cancer SW480 cells,as well as its underlying mechanisms.Methods Flu-orescence in situ hybridization(FISH)was used to de-tect the expression levels of LINC00626 in 38 colorec-tal cancer tissues and their corresponding adjacent nor-mal tissues.The JASPAR database was utilized to pre-dict co-expressed genes and their possible binding sites.Cell transfection technology was employed to knockdown LINC00626.Western blot and qRT-PCR techniques were used to verify the transfection efficien-cy.CCK-8 assay,cell apoptosis and necrosis staining,and Western blot were used to detect the changes in the proliferation,apoptosis,drug sensitivity,and ap-optotic proteins of SW480 cells,respectively.Results The FISH results indicated that LINC00626 was highly expressed in colorectal cancer tissues(P<0.05).The expression of LINC00626 was not associat-ed with the age or gender of patients,but was related to the TNM stage and the presence of lymph node me-tastasis($ P<0.05 $).The results of CCK-8 assay and cell apoptosis and necrosis staining showed that af-ter knockdown of LINC00626,the proliferation ability of SW480 cells decreased,the apoptosis level in-creased,and the drug resistance decreased(P<0.05).Western blot results showed that with the de-crease in the expression level of LINC00626,the ex-pression of caspase-3 protein decreased,the expression of cleaved caspase-3 protein increased,and the expres-sion of Bcl-2 protein decreased(P<0.05).Conclu-sions LINC00626 is highly expressed in colorectal cancer and is associated with the TNM stage and the presence of lymph node metastasis.LINC00626 can af-fect the proliferation,apoptosis,and drug sensitivity of SW480 cells and alter the expression of apoptotic pro-teins.
4.Development and validation of a predictive model for postoperative blood pressure outcomes in primary aldosteronism based on CYP11B2 gene polymorphism
Qiangfeng FU ; Yongjia CHEN ; Shengtao ZENG ; Haoxiang XU ; Chenglin YANG ; Yue YANG ; Zhi CAO ; Wei WANG
Chinese Journal of Urology 2025;46(7):529-536
Objective:To construct and validate a clinical model combining CYP11B2 gene polymorphisms with clinical parameters to predict complete postoperative hypertension remission in primary aldosteronism patients.Methods:The clinical data of a total of 116 patients with primary aldosteronism who underwent unilateral adrenalectomy from April 2018 to August 2024 were retrospectively included. There were 63 males and 53 females,with a body mass index(BMI)of(25.50 ± 2.03)kg/m 2. Genomic DNA was extracted from venous blood leukocytes before surgery,and polymerase chain reaction-restriction fragment length polymorphisms(PCR-RFLP)were used to detect CYP11B2(rs1799998)promoter region 344(C > T)base substitution. The follow-up duration was more than 6 months,with the following parameters recorded at the last follow-up:plasma aldosterone,renin,serum potassium,and sodium levels. Blood pressure progression and antihypertensive medication usage were also assessed. The postoperative outcome was determined according to the Primary Aldosteronism Surgical Outcome score(PASO)for primary aldosteronism,and the specific criteria were as follows. ① Clinical complete remission:the patient's blood pressure returned to normal(< 140/90 mmHg,1 mmHg = 0.133 kPa)and all antihypertensive drugs were discontinued;②Partial clinical remission:blood pressure returns to normal,and the number or dose of antihypertensive drugs is reduced compared with before;③Clinical non-remission:blood pressure does not drop and antihypertensive drugs do not change or increase compared with before surgery. Patients were divided into complete and incomplete remission groups. The chi-square test was used for univariate analysis,followed by binary logistic forward conditional regression for multivariate analysis,and a variety of machine learning algorithms such as random forest,logistic regression,support vector machine and gradient lifter were integrated,and the results of multivariate analysis were included to construct a postoperative blood pressure outcome model,and the predictive performance of the model was evaluated by using receiver operating characteristic(ROC)curve,calibration curve and clinical decision curve. Results:The PCR-RFLP detection results of 116 cases showed the genotype distribution of CYP11B2(344C > T)(rs1799998)as follows:CC type in 50 cases(43.1%),CT type in 46 cases(39.7%),and TT type in 20 cases(17.3%). There were 74 cases in the complete remission group and 42 cases in the incomplete remission group,and the rate of complete remission with hypertension at the end of the operation was 63.8%. Univariate analysis showed that the the differences between complete remission group and incomplete remission group in body mass index[(24.27 ± 2.90)kg/m 2 vs.(26.98 ± 3.17)kg/m 2, P<0.001],preoperative hypertension grade(grade 1/2/3:29/29/16 cases vs. 9/13/20 cases, P = 0.012),preoperative antihypertensive drugs(0/1/≥ 2:25/32/17 cases vs. 7/15/20 cases, P = 0.016),and CYP11B2(344C > T)(CC/TT + CT:39/35 cases vs. 11/31 cases, P = 0.006)were statistically significant. Multivariate analysis showed that the type of preoperative antihypertensive drugs[≥ 2: OR = 5.26(95% CI 1.12?24.61, P = 0.016;1: OR = 4.55(95% CI 1.23?22.47), P = 0.025]was the strongest independent predictor,followed by CYP11B2(344C > T)[ OR = 4.02(95% CI 1.16?13.82), P = 0.028]and BMI[ OR = 3.96(95% CI 2.26?6.92), P < 0.001]. Comparing the receiver operating feature(ROC)curves of the four types of machine learning models,the best model was the support vector machine model with an area under the curve(AUC)of 0.88(95% CI 0.82?0.95),followed by the gradient elevator model of 0.83(95% CI 0.76?0.91),the logistic regression model of 0.78(95% CI 0.68?0.88),and the random forest model of 0.77(95% CI 0.68?0.86). The optimal threshold of the Yoden index of the support vector machine model was 0.588,with a sensitivity of 78.5% and a specificity of 86.5%. The clinical decision curve and calibration curve show that the support vector machine model has a higher net benefit and acceptable stability and reliability. Conclusions:The support vector machine model incorporating CYP11B2 gene polymorphisms,BMI,and types of preoperative antihypertensive medications could effectively predict postoperative hypertension remission in primary aldosteronism patients,providing new evidence for personalized treatment strategies
5.Mechanism of cofilin in regulating prostate cancer progression and potential therapeutic strategies
Fang-zhi FU ; Li-tong WU ; En-min FENG ; Xiang ZHAO ; Neng WANG ; Biao WANG ; Qing ZHOU
Chinese Pharmacological Bulletin 2025;41(7):1206-1211
The molecular mechanisms underlying the develop-ment and metastasis of prostate cancer remain elusive.This comprehensive review delves into the intricate role of cofilin,an actin-binding protein,in the pathogenesis and progression of prostate cancer.Cofilin is a significant protein in cytoskeletal dynamics,and any dysregulation may result in the morphological changes in normal cells and the invasion and metastasis of tumor cells.Research has revealed that the activity of cofilin is regula-ted by various mechanisms,including phosphorylation/dephos-phorylation and interactions with other molecules.Moreover,this review discusses promising therapeutic interventions,such as co-filin inhibitors and gene therapy,which have demonstrated effica-cy in preclinical models.The challenge of clinically preventing the transition to castration-resistant prostate cancer and tumor metastasis is widely recognized,necessitating the development of precise drug treatments and biomarker identification.As a key regulatory protein,cofilin provides a more comprehensive refer-ence for the prevention and treatment of prostate diseases.
6.Effect of CYFIP1 on proliferation and apoptosis of colorectal cancer cell HT29
Fu-long YU ; Liang LI ; Hao QIANG ; Hui YUAN ; Song WANG ; Xiao-hu CHENG ; Run-ben JIANG ; Ya-ru YANG ; Zhi-ning LIU
Chinese Pharmacological Bulletin 2025;41(1):116-121
Aim To investigate the expression levels of cytoplasmic FMR1-interacting protein-1(CYFIP1)in colorectal cancer and assess the impact of CYFIP1 interaction on the proliferation and apoptosis of colorec-tal cancer cell HT29,along with its potential mecha-nisms.Methods Immunohistochemistry was em-ployed to assess CYFIP1 expression in 32 colorectal cancer tissues and adjacent tissues.Coexpressed genes were identified using the GEPIA2 website to predict potential correlations and binding sites.Following the construction of a siRNA-CYFIP1,alterations in cell proliferation,apoptosis,and levels of apoptosis-related proteins were evaluated through CCK-8 assay,Hoechst 33342/PI double staining assay,and Western blot a-nalysis,respectively.Results The immunohisto-chemical findings revealed a significantly elevated level of CYFIP1 expression in colorectal cancer tissues com-pared to paracancer tissues(P<0.05).The expres-sion of CYFIP1 did not show any correlation with age and gender,but exhibited associations with TNM stage and lymph node metastasis(P<0.05).A conserved TP53 binding site was predicted in the 3kbps DNA re-gion upstream of the CYFIP1 gene using GEPIA2,JASPAR databases,and rVista 2.0 promoter prediction software.Following transfection of HT29 cells with siRNA-CYFIP1,the clonogenesis and proliferation of cells significantly decreased(P<0.05).Additional-ly,the levels of cleaved caspase-3 were elevated,while the expression levels of caspase-3 and Bcl-2 were reduced after transfection with siRNA-CYFIP1(P<0.05),which might be related to the interaction be-tween CYFIP1 and TP53.Conclusions The upregu-lation of CYFIP1 in colorectal cancer is associated with TNM stage and lymph node metastasis.Upon silen-cing,CYFIP1 demonstrates the ability to suppress pro-liferation in HT29 cells and modulate the expression of apoptotic proteins.
7.Development and validation of a predictive model for postoperative blood pressure outcomes in primary aldosteronism based on CYP11B2 gene polymorphism
Qiangfeng FU ; Yongjia CHEN ; Shengtao ZENG ; Haoxiang XU ; Chenglin YANG ; Yue YANG ; Zhi CAO ; Wei WANG
Chinese Journal of Urology 2025;46(7):529-536
Objective:To construct and validate a clinical model combining CYP11B2 gene polymorphisms with clinical parameters to predict complete postoperative hypertension remission in primary aldosteronism patients.Methods:The clinical data of a total of 116 patients with primary aldosteronism who underwent unilateral adrenalectomy from April 2018 to August 2024 were retrospectively included. There were 63 males and 53 females,with a body mass index(BMI)of(25.50 ± 2.03)kg/m 2. Genomic DNA was extracted from venous blood leukocytes before surgery,and polymerase chain reaction-restriction fragment length polymorphisms(PCR-RFLP)were used to detect CYP11B2(rs1799998)promoter region 344(C > T)base substitution. The follow-up duration was more than 6 months,with the following parameters recorded at the last follow-up:plasma aldosterone,renin,serum potassium,and sodium levels. Blood pressure progression and antihypertensive medication usage were also assessed. The postoperative outcome was determined according to the Primary Aldosteronism Surgical Outcome score(PASO)for primary aldosteronism,and the specific criteria were as follows. ① Clinical complete remission:the patient's blood pressure returned to normal(< 140/90 mmHg,1 mmHg = 0.133 kPa)and all antihypertensive drugs were discontinued;②Partial clinical remission:blood pressure returns to normal,and the number or dose of antihypertensive drugs is reduced compared with before;③Clinical non-remission:blood pressure does not drop and antihypertensive drugs do not change or increase compared with before surgery. Patients were divided into complete and incomplete remission groups. The chi-square test was used for univariate analysis,followed by binary logistic forward conditional regression for multivariate analysis,and a variety of machine learning algorithms such as random forest,logistic regression,support vector machine and gradient lifter were integrated,and the results of multivariate analysis were included to construct a postoperative blood pressure outcome model,and the predictive performance of the model was evaluated by using receiver operating characteristic(ROC)curve,calibration curve and clinical decision curve. Results:The PCR-RFLP detection results of 116 cases showed the genotype distribution of CYP11B2(344C > T)(rs1799998)as follows:CC type in 50 cases(43.1%),CT type in 46 cases(39.7%),and TT type in 20 cases(17.3%). There were 74 cases in the complete remission group and 42 cases in the incomplete remission group,and the rate of complete remission with hypertension at the end of the operation was 63.8%. Univariate analysis showed that the the differences between complete remission group and incomplete remission group in body mass index[(24.27 ± 2.90)kg/m 2 vs.(26.98 ± 3.17)kg/m 2, P<0.001],preoperative hypertension grade(grade 1/2/3:29/29/16 cases vs. 9/13/20 cases, P = 0.012),preoperative antihypertensive drugs(0/1/≥ 2:25/32/17 cases vs. 7/15/20 cases, P = 0.016),and CYP11B2(344C > T)(CC/TT + CT:39/35 cases vs. 11/31 cases, P = 0.006)were statistically significant. Multivariate analysis showed that the type of preoperative antihypertensive drugs[≥ 2: OR = 5.26(95% CI 1.12?24.61, P = 0.016;1: OR = 4.55(95% CI 1.23?22.47), P = 0.025]was the strongest independent predictor,followed by CYP11B2(344C > T)[ OR = 4.02(95% CI 1.16?13.82), P = 0.028]and BMI[ OR = 3.96(95% CI 2.26?6.92), P < 0.001]. Comparing the receiver operating feature(ROC)curves of the four types of machine learning models,the best model was the support vector machine model with an area under the curve(AUC)of 0.88(95% CI 0.82?0.95),followed by the gradient elevator model of 0.83(95% CI 0.76?0.91),the logistic regression model of 0.78(95% CI 0.68?0.88),and the random forest model of 0.77(95% CI 0.68?0.86). The optimal threshold of the Yoden index of the support vector machine model was 0.588,with a sensitivity of 78.5% and a specificity of 86.5%. The clinical decision curve and calibration curve show that the support vector machine model has a higher net benefit and acceptable stability and reliability. Conclusions:The support vector machine model incorporating CYP11B2 gene polymorphisms,BMI,and types of preoperative antihypertensive medications could effectively predict postoperative hypertension remission in primary aldosteronism patients,providing new evidence for personalized treatment strategies
8.Effects of LINC00626 on proliferation,apoptosis and drug resistance of colorectal cancer SW480 cells
Liang LI ; Hao QIANG ; Shui-ri WANG ; Fu-long YU ; Song WANG ; Hui YUAN ; Ya-ru YANG ; Zhi-ning LIU
Chinese Pharmacological Bulletin 2025;41(10):1900-1905
Aim To investigate the high expression of LINC00626 in colorectal cancer,and explore the effects of LINC00626 on the proliferation,apoptosis,and drug sensitivity of colorectal cancer SW480 cells,as well as its underlying mechanisms.Methods Flu-orescence in situ hybridization(FISH)was used to de-tect the expression levels of LINC00626 in 38 colorec-tal cancer tissues and their corresponding adjacent nor-mal tissues.The JASPAR database was utilized to pre-dict co-expressed genes and their possible binding sites.Cell transfection technology was employed to knockdown LINC00626.Western blot and qRT-PCR techniques were used to verify the transfection efficien-cy.CCK-8 assay,cell apoptosis and necrosis staining,and Western blot were used to detect the changes in the proliferation,apoptosis,drug sensitivity,and ap-optotic proteins of SW480 cells,respectively.Results The FISH results indicated that LINC00626 was highly expressed in colorectal cancer tissues(P<0.05).The expression of LINC00626 was not associat-ed with the age or gender of patients,but was related to the TNM stage and the presence of lymph node me-tastasis($ P<0.05 $).The results of CCK-8 assay and cell apoptosis and necrosis staining showed that af-ter knockdown of LINC00626,the proliferation ability of SW480 cells decreased,the apoptosis level in-creased,and the drug resistance decreased(P<0.05).Western blot results showed that with the de-crease in the expression level of LINC00626,the ex-pression of caspase-3 protein decreased,the expression of cleaved caspase-3 protein increased,and the expres-sion of Bcl-2 protein decreased(P<0.05).Conclu-sions LINC00626 is highly expressed in colorectal cancer and is associated with the TNM stage and the presence of lymph node metastasis.LINC00626 can af-fect the proliferation,apoptosis,and drug sensitivity of SW480 cells and alter the expression of apoptotic pro-teins.
9.Advacnes in right ventricular function in pulmonary hypertension:focus on the 7th World Symposium on Pulmonary Hypertension
Shao-fei LIU ; Rui-qi WANG ; Zhi-fu GUO ; Ni ZHU
Chinese Journal of Interventional Cardiology 2025;33(10):574-580
Since 1973,the World Symposium on Pulmonary Hypertension(WSPH)has served as a pivotal platform for the advancing research in pulmonary hypertension(PH).At the 6th WSPH in 2018,the WSPH expert group refined the definitions related to cardiopulmonary physiology and right ventricular(RV)failure,thereby underscoring the critical role of RV dysfunction in the progression of PH.With ongoing advances in the field,RV failure associated with PH has received increasing attention and is now recognized as an important determinant of the prognosis of PH.The 7th WSPH,held in Barcelona,Spain,in 2024,presented the latest perspectives on the RV pathophysiology and its interaction with the pulmonary vasculature.The symposium emphasized new insights into the pathology of RV failure,RV phenotypes across different PH subgroups,and progress in therapeutic approaches targeting RV dysfunction.Additionally,the WSPH expert group delineated prospective research directions and identified unresolved issues.This article will review the RV function-related updates from the 7th WSPH and summarize recent findings,providing a systematic review of the evolution and breakthroughs in RV function research within the context of PH.
10.Advacnes in right ventricular function in pulmonary hypertension:focus on the 7th World Symposium on Pulmonary Hypertension
Shao-fei LIU ; Rui-qi WANG ; Zhi-fu GUO ; Ni ZHU
Chinese Journal of Interventional Cardiology 2025;33(10):574-580
Since 1973,the World Symposium on Pulmonary Hypertension(WSPH)has served as a pivotal platform for the advancing research in pulmonary hypertension(PH).At the 6th WSPH in 2018,the WSPH expert group refined the definitions related to cardiopulmonary physiology and right ventricular(RV)failure,thereby underscoring the critical role of RV dysfunction in the progression of PH.With ongoing advances in the field,RV failure associated with PH has received increasing attention and is now recognized as an important determinant of the prognosis of PH.The 7th WSPH,held in Barcelona,Spain,in 2024,presented the latest perspectives on the RV pathophysiology and its interaction with the pulmonary vasculature.The symposium emphasized new insights into the pathology of RV failure,RV phenotypes across different PH subgroups,and progress in therapeutic approaches targeting RV dysfunction.Additionally,the WSPH expert group delineated prospective research directions and identified unresolved issues.This article will review the RV function-related updates from the 7th WSPH and summarize recent findings,providing a systematic review of the evolution and breakthroughs in RV function research within the context of PH.


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