相关实验视频

Updated: Jan 17, 2026

Isolating Hair Follicle Stem Cells and Epidermal Keratinocytes from Dorsal Mouse Skin

Isolating Hair Follicle Stem Cells and Epidermal Keratinocytes from Dorsal Mouse Skin

Published on: April 29, 2016

毛囊干细胞SLC3A2 调节上皮细胞再生特性

Soline Estrach¹, Etienne Boulter¹, Laurence Cailleteau¹

¹INSERM, CNRS, IRCAN, Université Côte d'Azur, Nice, France.

The Journal of investigative dermatology

|September 14, 2025

概括

溶性载体家族3成员2 (SLC3A2) 对于保持毛囊干细胞 (HFSC) 和指导它们的命运至关重要. 缺少它会导致头发生长缺陷,并改变干细胞分化的途径.

科学领域:

皮肤病学皮肤病学
干细胞生物学干细胞生物学
分子生物学分子生物学

背景情况:

溶性载体家族3成员2 (SLC3A2) 增强整合素信号传递,对皮肤平衡至关重要.
毛囊干细胞 (HFSC) 对于头发再生和保持毛囊结构至关重要.

研究的目的:

研究SLC3A2在毛囊干细胞 (HFSC) 维护和细胞酸盐的确定中的作用.
了解SLC3A2如何影响HFSC的位置,分化和皮肤再生特性.

主要方法:

在特定的毛囊干细胞群中SLC3A2的遗传删除 (KRT9,Lrig1).
在体内皮肤复制试验.
干细胞分化,局部化和分子通路的分析 (YAP/Taz,脂代谢).

主要成果:

在HFSC中SLC3A2的删除导致了大量的干细胞损失和毛囊生长缺陷.
缺乏SLC3A2的HFSCs未能正确分化,采用了卵泡间表皮的命运.
缺少SLC3A2会导致纤维内素矩阵表达的降低和HFSC自主功能的受损.
在HFSC中,YAP/Taz通路和脂代谢 (胺氨酸合成,CerS4表达) 被确定为SLC3A2的下游作用者.

结论:

SLC3A2对于保持HFSC池,正确的HFSC位置和正确的细胞命运决策至关重要.
由SLC3A2介导的集成蛋白信号传递通过YAP/Taz.控制干细胞命运和皮肤再生.
在SLC3A2下游的脂代谢对于建立HFSC区间至关重要.

关键词:

成人的干细胞是成人的干细胞.毛囊是毛囊中的一个毛囊.整合物是一种整合物.这就是SLC3A2的原因.组织再生组织再生

更多相关视频

Establishing a High Throughput Epidermal Spheroid Culture System to Model Keratinocyte Stem Cell Plasticity

Establishing a High Throughput Epidermal Spheroid Culture System to Model Keratinocyte Stem Cell Plasticity

Published on: January 30, 2021

Rapid Genetic Analysis of Epithelial-Mesenchymal Signaling During Hair Regeneration

Rapid Genetic Analysis of Epithelial-Mesenchymal Signaling During Hair Regeneration

Published on: February 28, 2013

相关概念视频

Multipotency and Niche of Bulge Stem Cell

Multipotency and Niche of Bulge Stem Cell

A hair follicle or HF is a small part of the skin that produces the hair shaft. Paul Gerson Unna was the first to observe a bulge in the human hair follicle's outer root sheath (ORS). The bulge is present between the sebaceous gland and the arrector pili muscle and is the niche for hair follicle stem cells (HFSCs). The bulge is also a niche for melanocyte stem cells, and their loss results in graying of hair. The HFSCs express Sox9 and Lhx2, which help them maintain stemness and prevent...

Renewal of Skin Epidermal Stem Cells

Renewal of Skin Epidermal Stem Cells

The skin is divided into epidermis, dermis, and hypodermis, the skin's outermost, middle, and inner layers. The human epidermal layer regularly undergoes renewal, where old, dead cells are replaced by new cells. Epidermal stem cells or EpiSCs divide and differentiate to restore the lost cells. For the renewal process, some EpiSCs continuously self-renew. In contrast, few others differentiate into transit-amplifying cells, which later form prickle or spinous cells, followed by granular...

Clinical Applications of Epidermal Stem Cells

Clinical Applications of Epidermal Stem Cells

Epidermal stem cells (EpiSCs) are mainly located at the basal layer of the epidermis. These cells repair minor injuries of the skin and replace dead skin cells. However, EpiSCs’ cannot heal severe wounds such as major burns or those from diabetes or hereditary disorders. In such cases, culturing the epidermal stem cells from the patient is possible and has yielded successful treatment options, such as laboratory-grown skin grafts. These grafts are synthesized using a patient’s own...

Stem Cell Niche

Stem Cell Niche

The stem cell niche is the dynamic microenvironment where stem cells reside. Inside these niches, the cells may remain undifferentiated, undergo high self-renewal, or become lineage-specific progenitors. Stem cells coexist with other niche cells, such as stromal cells. They also interact closely with the ECM. Cell-cell and cell-matrix communication occur via adhesion molecules or soluble factors that signal the stem cells and determine their fate. Stromal cells also provide survival signals to...

Renewal of Intestinal Stem Cells

Renewal of Intestinal Stem Cells

The intestinal epithelial lining rapidly renews every 4 to 5 days. The renewal is facilitated by intestinal stem cells (ISCs) located at the base of the crypt– a gland located at the bottom of each villus. ISCs divide asymmetrically to form new stem cells and progenitor daughter cells. The daughter cells are called transit-amplifying (TA) cells which move upwards along the crypt and either differentiate into absorptive cells– the enterocytes or secretory cells– including the...

Adult Stem Cells

Adult Stem Cells

Stem cells are undifferentiated cells that divide and produce more stem cells or progenitor cells that differentiate into mature, specialized cell types. All the cells in the body are generated from stem cells in the early embryo, but small populations of stem cells are also present in many adult tissues including the bone marrow, brain, skin, and gut. These adult stem cells typically produce the various cell types found in that tissue—to replace cells that are damaged or to continuously...