E. S. Voronina, A. Bucharskaya, T. V. Palatova, R. N. Fomkin, N. Navolokin, G. Maslyakova
{"title":"Significance Of LC3B Autophagy Marker In Recurrent Prostate Adenocarcinoma","authors":"E. S. Voronina, A. Bucharskaya, T. V. Palatova, R. N. Fomkin, N. Navolokin, G. Maslyakova","doi":"10.15275/rusomj.2022.0115","DOIUrl":null,"url":null,"abstract":"Objective — To compare the expression of the LC3B autophagy marker before and after treatment with high-intensity focused ultrasound therapy (HIFU) and combined therapies: androgenic deprivation AD + HIFU, AD + radiation therapy in patients with and without recurrent prostate adenocarcinoma. Material and Methods — The objects of our study were biopsy specimens of prostates obtained from 70 patients with prostate adenocarcinoma before and after treatment. The first group consisted of patients without signs of relapse after treatment, as evidenced by a normal blood PSA level, the results of ultrasound procedure and biopsy. The second group included patients who had a recurrence of adenocarcinoma after treatment. Patients received the following cancer treatments: ultrasound ablation (HIFU), combination therapy: androgenic deprivation AD + HIFU, AD + radiation therapy. An immunohistochemical staining in two groups was performed with an anti-LC3B antibody. Results — In the group of patients without relapse, the expression of the autophagy marker sharply decreased in the tumor tissue after treatment, but it increased in the stroma of muscle connective tissue and the vascular wall. In the group of patients with relapse, the expression of anti-LC3B antibody significantly increased in tumor cells, in stroma of muscle connective tissue, and in vascular wall after treatment. In both groups, the magnitude of the autophagy marker expression did not depend on the treatment method. Conclusion — The autophagy is one of the factors contributing to the survival of prostate adenocarcinoma cells after treatment; the increase in autophagic protein expression after treatment in patients with prostate adenocarcinoma can be used to assess the risk of relapse.","PeriodicalId":21426,"journal":{"name":"Russian Open Medical Journal","volume":null,"pages":null},"PeriodicalIF":0.2000,"publicationDate":"2022-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Open Medical Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.15275/rusomj.2022.0115","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MEDICINE, GENERAL & INTERNAL","Score":null,"Total":0}
引用次数: 0
Abstract
Objective — To compare the expression of the LC3B autophagy marker before and after treatment with high-intensity focused ultrasound therapy (HIFU) and combined therapies: androgenic deprivation AD + HIFU, AD + radiation therapy in patients with and without recurrent prostate adenocarcinoma. Material and Methods — The objects of our study were biopsy specimens of prostates obtained from 70 patients with prostate adenocarcinoma before and after treatment. The first group consisted of patients without signs of relapse after treatment, as evidenced by a normal blood PSA level, the results of ultrasound procedure and biopsy. The second group included patients who had a recurrence of adenocarcinoma after treatment. Patients received the following cancer treatments: ultrasound ablation (HIFU), combination therapy: androgenic deprivation AD + HIFU, AD + radiation therapy. An immunohistochemical staining in two groups was performed with an anti-LC3B antibody. Results — In the group of patients without relapse, the expression of the autophagy marker sharply decreased in the tumor tissue after treatment, but it increased in the stroma of muscle connective tissue and the vascular wall. In the group of patients with relapse, the expression of anti-LC3B antibody significantly increased in tumor cells, in stroma of muscle connective tissue, and in vascular wall after treatment. In both groups, the magnitude of the autophagy marker expression did not depend on the treatment method. Conclusion — The autophagy is one of the factors contributing to the survival of prostate adenocarcinoma cells after treatment; the increase in autophagic protein expression after treatment in patients with prostate adenocarcinoma can be used to assess the risk of relapse.
期刊介绍:
Russian Open Medical Journal (RusOMJ) (ISSN 2304-3415) is an international peer reviewed open access e-journal. The website is updated quarterly with the RusOMJ’s latest original research, clinical studies, case reports, reviews, news, and comment articles. This Journal devoted to all field of medicine. All the RusOMJ’s articles are published in full on www.romj.org with open access and no limits on word counts. Our mission is to lead the debate on health and to engage, inform, and stimulate doctors, researchers, and other health professionals in ways that will improve outcomes for patients. The RusOMJ team is based mainly in Saratov (Russia), although we also have editors elsewhere in Russian and in other countries.