{"title":"Ataxin-2作为估计胶质母细胞瘤复发病例疾病状态的候选血液生物标志物。","authors":"Farida Garaeva, Riho Nakajima, Sho Tamai, Kensuke Tateishi, Akitake Mukasa, Shinji Kawabata, Hiroaki Nagashima, Manabu Natsumeda, Nozomi Hirai, Shota Tanaka, Shigeo Ohba, Nayuta Higa, Yoshiki Arakawa, Akihide Kondo, Hidehiro Kohzuki, Shinichiro Koizumi, Yutaka Fujioka, Tatsuya Abe, Hemragul Sabit, Masashi Kinoshita, Yasuo Uchida, Sumio Ohtsuki, Mitsutoshi Nakada","doi":"10.1007/s10014-025-00517-z","DOIUrl":null,"url":null,"abstract":"<p><p>Differentiating pseudoprogression (PsP) from recurrence in cases of glioblastoma (GBM) after chemoradiotherapy is challenging, with neuroimaging as the only non-invasive method. In this study, we aimed to identify a blood biomarker for precise disease monitoring and investigated the role of Ataxin-2 (ATXN2). Blood samples (n = 45) from patients with suspected recurrence, including eight with PSP, were analyzed. In addition, tumor tissue samples (n = 22), including those from seven patients who also provided blood samples, were examined. Protein levels were assessed using quantitative proteomics and ELISA. ATXN2 levels were measured via western blotting, and localization was determined through immunohistochemistry and immunocytochemistry. ATXN2 knockdown was performed in glioma cell lines to assess its effects on proliferation, migration, and invasion. Proteomics identified ATXN2 as a potential biomarker. ELISA showed significantly higher serum ATXN2 levels in recurrence than in PsP (p = 0.028). ATXN2 ≥ 11.0 ng/mL and ≥ 8 months post-chemoradiotherapy distinguished recurrence from PsP (AUC = 0.82, sensitivity = 67.6%, specificity = 87.5%). ATXN2 was highly expressed in GBM tissues, localized in neurons and glioma cells, and its knockdown enhanced proliferation, migration, and invasion via ERK phosphorylation. ATXN2, highly expressed in GBM, may serve as a potential blood biomarker for distinguishing PsP from recurrence.</p>","PeriodicalId":9226,"journal":{"name":"Brain Tumor Pathology","volume":" ","pages":""},"PeriodicalIF":3.0000,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Ataxin-2 as a candidate blood biomarker for estimating disease status in cases of suspected glioblastoma recurrence.\",\"authors\":\"Farida Garaeva, Riho Nakajima, Sho Tamai, Kensuke Tateishi, Akitake Mukasa, Shinji Kawabata, Hiroaki Nagashima, Manabu Natsumeda, Nozomi Hirai, Shota Tanaka, Shigeo Ohba, Nayuta Higa, Yoshiki Arakawa, Akihide Kondo, Hidehiro Kohzuki, Shinichiro Koizumi, Yutaka Fujioka, Tatsuya Abe, Hemragul Sabit, Masashi Kinoshita, Yasuo Uchida, Sumio Ohtsuki, Mitsutoshi Nakada\",\"doi\":\"10.1007/s10014-025-00517-z\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Differentiating pseudoprogression (PsP) from recurrence in cases of glioblastoma (GBM) after chemoradiotherapy is challenging, with neuroimaging as the only non-invasive method. In this study, we aimed to identify a blood biomarker for precise disease monitoring and investigated the role of Ataxin-2 (ATXN2). Blood samples (n = 45) from patients with suspected recurrence, including eight with PSP, were analyzed. In addition, tumor tissue samples (n = 22), including those from seven patients who also provided blood samples, were examined. Protein levels were assessed using quantitative proteomics and ELISA. ATXN2 levels were measured via western blotting, and localization was determined through immunohistochemistry and immunocytochemistry. ATXN2 knockdown was performed in glioma cell lines to assess its effects on proliferation, migration, and invasion. Proteomics identified ATXN2 as a potential biomarker. ELISA showed significantly higher serum ATXN2 levels in recurrence than in PsP (p = 0.028). ATXN2 ≥ 11.0 ng/mL and ≥ 8 months post-chemoradiotherapy distinguished recurrence from PsP (AUC = 0.82, sensitivity = 67.6%, specificity = 87.5%). ATXN2 was highly expressed in GBM tissues, localized in neurons and glioma cells, and its knockdown enhanced proliferation, migration, and invasion via ERK phosphorylation. ATXN2, highly expressed in GBM, may serve as a potential blood biomarker for distinguishing PsP from recurrence.</p>\",\"PeriodicalId\":9226,\"journal\":{\"name\":\"Brain Tumor Pathology\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":3.0000,\"publicationDate\":\"2025-09-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Brain Tumor Pathology\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1007/s10014-025-00517-z\",\"RegionNum\":3,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CLINICAL NEUROLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Brain Tumor Pathology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1007/s10014-025-00517-z","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CLINICAL NEUROLOGY","Score":null,"Total":0}
Ataxin-2 as a candidate blood biomarker for estimating disease status in cases of suspected glioblastoma recurrence.
Differentiating pseudoprogression (PsP) from recurrence in cases of glioblastoma (GBM) after chemoradiotherapy is challenging, with neuroimaging as the only non-invasive method. In this study, we aimed to identify a blood biomarker for precise disease monitoring and investigated the role of Ataxin-2 (ATXN2). Blood samples (n = 45) from patients with suspected recurrence, including eight with PSP, were analyzed. In addition, tumor tissue samples (n = 22), including those from seven patients who also provided blood samples, were examined. Protein levels were assessed using quantitative proteomics and ELISA. ATXN2 levels were measured via western blotting, and localization was determined through immunohistochemistry and immunocytochemistry. ATXN2 knockdown was performed in glioma cell lines to assess its effects on proliferation, migration, and invasion. Proteomics identified ATXN2 as a potential biomarker. ELISA showed significantly higher serum ATXN2 levels in recurrence than in PsP (p = 0.028). ATXN2 ≥ 11.0 ng/mL and ≥ 8 months post-chemoradiotherapy distinguished recurrence from PsP (AUC = 0.82, sensitivity = 67.6%, specificity = 87.5%). ATXN2 was highly expressed in GBM tissues, localized in neurons and glioma cells, and its knockdown enhanced proliferation, migration, and invasion via ERK phosphorylation. ATXN2, highly expressed in GBM, may serve as a potential blood biomarker for distinguishing PsP from recurrence.
期刊介绍：
Brain Tumor Pathology is the official journal of the Japan Society of Brain Tumor Pathology. This international journal documents the latest research and topical debate in all clinical and experimental fields relating to brain tumors, especially brain tumor pathology. The journal has been published since 1983 and has been recognized worldwide as a unique journal of high quality. The journal welcomes the submission of manuscripts from any country. Membership in the society is not a prerequisite for submission. The journal publishes original articles, case reports, rapid short communications, instructional lectures, review articles, letters to the editor, and topics.Review articles and Topics may be recommended at the annual meeting of the Japan Society of Brain Tumor Pathology. All contributions should be aimed at promoting international scientific collaboration.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
