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To improve clinical relevance and translational rigor, the recommendations emphasize expanded exosome characterization, standardized reporting of particle number and protein concentration with dose-response links, direct CDC42 validation, deeper Wnt/β-catenin pathway evaluation, stronger animal-model biochemical evidence, and quantitative delivery and microneedle retention analysis. The work further calls for an integrated quality control and safety framework to enable safe, effective, and reproducible clinical use.",{"@graph":69,"@context":127},[70,84,106],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/advancing-human-adipose-derived-mesenchymal-stem-cell-derived-exosomes-for-androgenetic-alopecia-appraisal-and-methodological-recommendations/406791/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/advancing-human-adipose-derived-mesenchymal-stem-cell-derived-exosomes-for-androgenetic-alopecia-appraisal-and-methodological-recommendations/406791.png","ImageObject",300,407,{"name":92,"@type":93},"Fans","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-05","2026-09-28",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",13,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119,123],{"name":110,"@type":111,"acceptedAnswer":112},"What experimental findings support the potential clinical translation of exosome therapy for androgenetic alopecia?","Question",{"text":113,"@type":114},"The analysis identified a stable set of 232 proteins and proposed a CDC42-Wnt/β-catenin-GSK3β signaling axis related to dermal papilla cell responses, supporting translational potential.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"Which improvements are recommended for exosome characterization and marker reporting?",{"text":118,"@type":114},"The recommendations call for more comprehensive characterization with key marker analysis, including broader positive/negative marker panels such as additional markers (e.g., Alix, TSG101, syntenin) and improved negative controls beyond calnexin.",{"name":120,"@type":111,"acceptedAnswer":121},"How should dosing and experimental reporting be standardized to improve reproducibility?",{"text":122,"@type":114},"The document recommends reporting both particle count and protein concentration, establishing dose-response relationships, and including quantitative dose-related parameters (e.g., particle-to-protein ratio, yield, and batch-to-batch consistency).",{"name":124,"@type":111,"acceptedAnswer":125},"What mechanism validation and delivery-related evidence are suggested to strengthen the methodology?",{"text":126,"@type":114},"Direct CDC42 function validation is recommended using knockout or overexpression experiments, along with multi-level evaluation of Wnt/β-catenin signaling, enhanced biochemical validation in animal models, and quantitative assessment of microneedle delivery parameters and retention.","https://schema.org",{"og:url":83,"og:type":129,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":131,"canonical":83},"index,follow",{"doc_id":133,"site_id":62},406791,1790823562,{"code":4,"msg":5,"data":136},{"doc_id":133,"user_id":137,"nickname":92,"user_avatar":138,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":139,"file_id":140,"file_url":141,"file_type":142,"file_size":143,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":29,"language":144,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":145,"faqs":146,"seo_title":147,"seo_description":67,"update_tm":148,"read_time":149,"preview_page_count":4},5909892330395,"https://ap-avatar.wpscdn.com/davatar_6f874abed73319feea01a86fa6f0fab8","| W | J | S | C | World Journal of\u003Cbr>Stem Cells |\n| --- | --- | --- | --- | --- |\n\nSubmit a Manuscript: [https://www.f6publishing.com](https://www.f6publishing.com) World J Stem Cells 2025 December 26; 17(12): 113456  \nDOI: 10.4252/wjsc.v17.i12.113456 ISSN 1948-0210 (online)  \nLETTER TO THE EDITOR  \nAdvancing human adipose-derived mesenchymal stem cell-derived exosomes for androgenetic alopecia: Appraisal and methodological recommendations  \nYu Jiang, Wen-Jun Huang, Rui Zhou  \nSpecialty type: Cell and tissue engineering  \nProvenance and peer review:  \nUnsolicited article; Externally peer reviewed.  \nPeer-review model: Single blind  \nPeer-review report’s classification Scientific Quality: Grade A, Grade A, Grade B  \nNovelty: Grade B, Grade B, Grade C  \nCreativity or Innovation: Grade B, Grade C, Grade C  \nScientific Significance: Grade A, Grade B, Grade C  \nP-Reviewer: Semerci Sevimli T, PhD, Associate Professor, Türkiye; Zhang WY, MD, PhD, Assistant Professor, China  \nReceived: September 3, 2025  \nRevised: September 30, 2025  \nAccepted: November 21, 2025  \nPublished online: December 26, 2025  \nProcessing time: 113 Days and 14.6 Hours  \nYu Jiang, Department of Emergency Medicine, The Traditional Chinese Medicine Hospital of Longquanyi, Chengdu 610100, Sichuan Province, China  \nWen-Jun Huang, Rui Zhou, Shaanxi Institute for Pediatric Diseases, Affiliated Children’s Hospital of Xi’an Jiaotong University, Xi’an 710003, Shaanxi Province, China  \nCorresponding author: Rui Zhou, PhD, Associate Professor, Shaanxi Institute for Pediatric Diseases, Affiliated Children’s Hospital of Xi’an Jiaotong University, No. 69 West Juyuan Lane, Lianhu District, Xi’an 710003, Shaanxi Province, [China.](China. zhouhuaxizhu@126.com)[ zhouhuaxizhu@126.com](China. zhouhuaxizhu@126.com)  \nAbstract  \nFu et al investigated human adipose-derived mesenchymal stem cell exosomes for androgenetic alopecia, identifying a stable set of 232 proteins and proposing the CDC42-Wnt/β-catenin-glycogen synthase kinase 3β signaling axis. These findings support the potential for clinical translation. To further strengthen clinical relevance, we recommend: (1) More comprehensive exosome characterization, including key marker analysis; (2) Reporting both particle count and protein concentration, and establishing dose-response relationships; (3) Direct validation of CDC42’s role through knockout or overexpression experiments; (4) Multi-level evaluation of Wnt/β-catenin signaling; (5) Enhanced biochemical validation in animal models; (6) Quantitative analysis of microneedle delivery parameters and retention; and (7) Early development of a streamlined quality control and safety framework. These methodological advancements will help exosome-based therapies better align with emerging regulatory standards and clinical guidelines. By addressing these aspects, future research can facilitate the safe, effective, and reproducible application of exosome-based treatments in clinical practice.  \nKey Words: Androgenetic alopecia; Extracellular vesicles; Human adipose-derived mesenchymal stem cell-derived exosomes; CDC42; Wnt/β-catenin signaling; Quality control; Dermal papilla cells  \n©The Author(s) 2025. Published by Baishideng Publishing Group Inc. All rights reserved.  \n WJSC  [https://www.wjgnet.com](https://www.wjgnet.com) 1 December 26, 2025  Volume 17  Issue 12   \nJiang Y et al. Standardizing hADSC-Exos in AGA  \nCore Tip: Key challenges for translating human adipose-derived mesenchymal stem cell-derived exosomes in androgenetic alopecia include: Incomplete exosome marker information; lack of standardized reporting for particle counts and protein content; absence of direct CDC42 function validation; limited depth in Wnt/β-catenin pathway analysis; insufficient biochemical data in animal models; undefined microneedle delivery parameters; limited safety profiling; and lack of integrated quality control and potency release criteria.  \nCitation: Jiang Y, Huang WJ, Zhou R. Advancing hum","cbCaisHGJxVjMKKR","https://ap.wps.com/l/cbCaisHGJxVjMKKR","pdf",405318,"English","# Letter to the Editor\n## Core Tip\n## Advancing Methodological Recommendations\n## Extracellular Vesicle Characterization and Dose Normalization","[{\"question\":\"What experimental findings support the potential clinical translation of exosome therapy for androgenetic alopecia?\",\"answer\":\"The analysis identified a stable set of 232 proteins and proposed a CDC42-Wnt/β-catenin-GSK3β signaling axis related to dermal papilla cell responses, supporting translational potential.\"},{\"question\":\"Which improvements are recommended for exosome characterization and marker reporting?\",\"answer\":\"The recommendations call for more comprehensive characterization with key marker analysis, including broader positive/negative marker panels such as additional markers (e.g., Alix, TSG101, syntenin) and improved negative controls beyond calnexin.\"},{\"question\":\"How should dosing and experimental reporting be standardized to improve reproducibility?\",\"answer\":\"The document recommends reporting both particle count and protein concentration, establishing dose-response relationships, and including quantitative dose-related parameters (e.g., particle-to-protein ratio, yield, and batch-to-batch consistency).\"},{\"question\":\"What mechanism validation and delivery-related evidence are suggested to strengthen the methodology?\",\"answer\":\"Direct CDC42 function validation is recommended using knockout or overexpression experiments, along with multi-level evaluation of Wnt/β-catenin signaling, enhanced biochemical validation in animal models, and quantitative assessment of microneedle delivery parameters and retention.\"}]","Advancing human adipose-derived mesenchymal stem cell-derived exosomes for androgenetic alopecia - Appraisal and methodological recommendations | PDF",1790567860,15]