Lgr6 marks stem cells in the hair follicle that generate all cell lineages of the skin.
5/5 보강
TL;DR
It is concluded that a stem-cell cluster in the hair follicle, characterized by the expression of Lgr6, a close homolog of the Lgr5 marker for stem cells in the small intestine and colon, resides directly above the hair bulge and gives rise to all cell lineages of the skin.
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연도별 인용 (2012–2026) · 합계 659
OpenAlex 토픽 ·
Hair Growth and Disorders
Wnt/β-catenin signaling in development and cancer
Wound Healing and Treatments
🇰🇷 한글 요약 🌐 Abstract
【연구 목적】
표피(epidermis)의 세 자가재생 구획(모낭, 피지샘, 모낭간 표피) 모두를 생성하는 가장 원시적인 표피줄기세포(epidermal stem cell)를 식별하기 위해, Lgr5의 근연 유전자인 Lgr6를 마커로 활용해 그 발현 세포의 분화 능력을 규명하고자 함.
【방법】
생쥐 Lgr6 유전자좌에 knock-in 대립유전자를 제작하여 Lgr6+ 세포의 위치를 표지하고, 계통추적(lineage tracing)을 통해 배아기·출생 후·성체 단계에서 이들 세포의 분화 운명과 창상치유 시 기여도를 장기간 관찰함.
【주요 결과】
Lgr6는 가장 이른 배아 모낭원기(hair placode)에서 발현되었고, 성체 모낭에서는 기존 bulge 줄기세포 마커를 발현하지 않는 bulge 직상부의 새로운 영역에 위치함. 태생기 Lgr6+ 세포는 모낭·피지샘·모낭간 표피 모두를 형성했고, 출생 후에는 피지샘과 모낭간 표피에 지속적으로 기여하며 성체에서는 장기 창상치유와 새로운 모낭 형성까지 수행함.
【임상적 시사점 (성형외과 의사 관점)】
Lgr6+ 세포가 모낭·피지샘·표피를 모두 재생할 수 있는 다능성 줄기세포임은, 모발이식·흉터재건·창상치유 분야에서 단일 줄기세포 집단을 활용한 모낭 신생(neogenesis) 및 피부 부속기 복원 전략의 이론적 근거가 됨. 향후 화상·외상성 흉터·탈모 치료에서 bulge 상부 영역을 표적으로 한 세포기반 재생치료(cell-based regenerative therapy) 개발 가능성을 시사함.
Mammalian epidermis consists of three self-renewing compartments: the hair follicle, the sebaceous gland, and the interfollicular epidermis. We generated knock-in alleles of murine Lgr6, a close relative of the Lgr5 stem cell gene. Lgr6 was expressed in the earliest embryonic hair placodes. In adult hair follicles, Lgr6+ cells resided in a previously uncharacterized region directly above the follicle bulge. They expressed none of the known bulge stem cell markers. Prenatal Lgr6+ cells established the hair follicle, sebaceous gland, and interfollicular epidermis. Postnatally, Lgr6+ cells generated sebaceous gland and interfollicular epidermis, whereas contribution to hair lineages gradually diminished with age. Adult Lgr6+ cells executed long-term wound repair, including the formation of new hair follicles. We conclude that Lgr6 marks the most primitive epidermal stem cell.
【연구 목적】 표피(epidermis)의 세 자가재생 구획(모낭, 피지샘, 모낭간 표피) 모두를 생성하는 가장 원시적인 표피줄기세포(epidermal stem cell)를 식별하기 위해, Lgr5의 근연 유전자인 Lgr6를 마커로 활용해 그 발현 세포의 분화 능력을 규명하고자 함.
APA 7
Snippert, H. J., Haegebarth, A., Kasper, M., Jaks, V., JH, v. E., Barker, N., M, v. d. W., M, v. d. B., Begthel, H., Vries, R. G., Stange, D. E., R, T., & Clevers, H. (2010). Lgr6 marks stem cells in the hair follicle that generate all cell lineages of the skin.. Science (New York, N.Y.), 327(5971), 1385-9. https://doi.org/10.1126/science.1184733
Vancouver
Snippert HJ, Haegebarth A, Kasper M, Jaks V, JH vE, Barker N, et al. Lgr6 marks stem cells in the hair follicle that generate all cell lineages of the skin. Science (New York, N.Y.). 2010;327(5971):1385-9. doi:10.1126/science.1184733
AMA 11
Snippert HJ, Haegebarth A, Kasper M, Jaks V, JH vE, Barker N, et al. Lgr6 marks stem cells in the hair follicle that generate all cell lineages of the skin. Science (New York, N.Y.). 2010;327(5971):1385-9. doi:10.1126/science.1184733
Chicago
Snippert, H. J., Haegebarth, A., Kasper, M., Jaks, V., JH, v. E., Barker, N., M, v. d. W., M, v. d. B., Begthel, H., Vries, R. G., and .... 2010. "Lgr6 marks stem cells in the hair follicle that generate all cell lineages of the skin." Science (New York, N.Y.) 327 (5971): 1385-9. https://doi.org/10.1126/science.1184733
MLA 9
Snippert, H. J., et al. "Lgr6 marks stem cells in the hair follicle that generate all cell lineages of the skin." Science (New York, N.Y.), vol. 327, no. 5971, 2010, pp. 1385-9. doi:10.1126/science.1184733.
PMID
20223988 ↗
🏷️ 키워드 / MeSH 📖 같은 키워드 OA만
인용 관계
그래프 OA 노드: 8/8 (100%)
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