1.Novel hormone therapies for advanced prostate cancer: Understanding and countering drug resistance.
Zhipeng WANG ; Jie WANG ; Dengxiong LI ; Ruicheng WU ; Jianlin HUANG ; Luxia YE ; Zhouting TUO ; Qingxin YU ; Fanglin SHAO ; Dilinaer WUSIMAN ; William C CHO ; Siang Boon KOH ; Wei XIONG ; Dechao FENG
Journal of Pharmaceutical Analysis 2025;15(9):101232-101232
Prostate cancer is the most prevalent malignant tumor among men, ranking first in incidence and second in mortality globally. Novel hormone therapies (NHT) targeting the androgen receptor (AR) pathway have become the standard of care for metastatic prostate cancer. This review offers a comprehensive overview of NHT, including abiraterone, enzalutamide, apalutamide, darolutamide, and rezvilutamide, which have demonstrated efficacy in delaying disease progression and improving patient survival and quality of life. Nevertheless, resistance to NHT remains a critical challenge. The mechanisms underlying resistance are complex, involving AR gene amplification, mutations, splice variants, increased intratumoral androgens, and AR-independent pathways such as the glucocorticoid receptor, neuroendocrine differentiation, DNA repair defects, autophagy, immune evasion, and activation of alternative signaling pathways. This review discusses these resistance mechanisms and examines strategies to counteract them, including sequential treatment with novel AR-targeted drugs, chemotherapy, poly ADP-ribose polymerase inhibitors, radionuclide therapy, bipolar androgen therapy, and approaches targeting specific resistance pathways. Future research should prioritize elucidating the molecular basis of NHT resistance, optimizing existing therapeutic strategies, and developing more effective combination regimens. Additionally, advanced sequencing technologies and resistance research models should be leveraged to identify novel therapeutic targets and improve drug delivery efficiencies. These advancements hold the potential to overcome NHT resistance and significantly enhance the management and prognosis of patients with advanced prostate cancer.
2.The preparation of recombinant adenovirus Ad-Rad50-GFP and detection of the optimal multiplicity of infection in CNE1 transfected hv Ad-Rad50-GFP.
Ruicheng YAN ; Jiancong HUANG ; Ling ZHU ; Lihong CHANG ; Jingjia LI ; Xifu WU ; Jin YE ; Gehua ZHANG
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2015;29(24):2143-2146
OBJECTIVE:
The optimal multiplicity of infection (MOI) of the recombinant adenovirus Ad-Rad50-GFP carrying a mutant Rad50 gene expression region on the cell growth of nasopharyngeal carcinoma and the viral amplification efficiency of CNE1 cell infected by this adenovirus were studied.
METHOD:
The biological titer of Ad-Rad50-GFP was measured by end point dilution method. The impact of recombinant adenoviral vector transfection on the growth of CNE1 cells was observed by cell growth curve. Transfection efficacy of recombinant adenoviral vector was observed and calculated through fluorescence microscope. The expression f mutant Rad50 in the Ad-Rad50-GFP transfected CNE1 cells with optimal MOI was detected by Western Blot after transfection.
RESULT:
The biological titer of Ad-Rad50-GFP was 1.26 x 10¹¹ pfu/ml. CNE1 cell growth was not influenced significantly as they were transfected by recombinant adenoviral vector with MOI less than 50. Transfection efficacy of recombinant adenoviral vector was most salient at 24 hours after transfection, with the high expression of mutant Rad50, and the efficiency still remained about 70% after 72 hours.
CONCLUSION
Recombinant adenoviral vector Ad-Rad50-GFP could transfect CNE1 cells as well as result in the expression of mutant Rad50 in CNE1 cells effectively. MOI = 50 was the optimal multiplicity of infection of CNE1 cells transfected by recombinant adenoviral vector Ad-Rad50-GFP.
Adenoviridae
;
Carcinoma
;
Cell Line, Tumor
;
Genetic Vectors
;
Humans
;
Nasopharyngeal Carcinoma
;
Nasopharyngeal Neoplasms
;
Transfection
3.Investigation on quantitative diagnosis of stroke with Qi deficiency and blood stasis
Junlin JIANG ; Shen ZHOU ; Ruicheng ZHAO ; Dahua WU
International Journal of Traditional Chinese Medicine 2011;33(2):143-145
Objective To build diagnostic model of stroke with qi deficiency and blood stasis.Methods Get the disease information by epidemiological investigation. All patients were recurited into training samples and testing samples by random. Diagnostic model was built by statistical method, and tested by training samples and testing samples. Results Three diagnostic models were built. The best model with discriminant function of qi deficiency and blood stasis has been proven to be the Bayes model. Conclusion The diagnostic model built by epidemiological investigation has the advantage of good accuracy. It will improve the accuracy of clinical syndrome differentiation.
4.Clinical Study on Gilles de la Tourette Syndrome Treated with Chouhuiping
Dahua WU ; Weihua YANG ; Ruicheng ZHAO
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(07):-
Objective To investigate the effect and the safety of Chouhuiping on Gilles de la Tourette Syndrom (TS) with syndrome of hyperactivity of liver-yang and spleen-asthenia with upstirring of windphlegm. Methods 66 cases patients with TS were selected and randomly divided into 3 groups:group A (n =22) was treated with Chouhuiping,group B (n =22) was treated with Haloperide and group C (n =22) was treated with combination of Chouhuiping and Haloperide,with a course of 4 weeks. Result All schemes were effective on the YGTSS score and the Chinese medicine syndrome score after treatment (P
5.The Effect of Bone Marrow Mononuclear Cells Transplantation on Myocardial Apoptosis after Acute Myocardial Infarction in Rats.
Ruicheng ZHANG ; Gang WU ; Jianfeng HOU ; Rujun ZHU ; Jianwei WANG ; Xia GAO ; Kai LIANG ; Baocai WANG ; Jiangjiang RU
Journal of Medical Research 2006;0(02):-
Objective To observe the effect of allogenic bone marrow mononuclear cells(BM-MNCs) transplantation on myocardial apoptosis after acute myocardial infarction(AMI) in rats.Methods 40 Wistar rats were randomly divided into control group(n=20) and transplantation group(n=20).Myocardium around the infarcted left ventricular area of the rats in transplantation group were injected with BM-MNCs suspension beneath the epicardium.Myocardium the area of control group was injected with culture solution.Results After 4 weeks of the operation,the myocardial apoptosis index,the TNF-? content and the PDCD5 mRNA of transplantation group were all notably less than those of control group(P

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