関連する実験動画
Updated: Jan 13, 2026

09:07
Murine Model of Epicutaneously-Induced Immunomodulation
Published on: June 24, 2025
485
iPSC由来MSC分泌物によるアトピー性皮膚炎の保護および修復モダリティ
Seungah Yoo1, Hyun Jin Baek2, Narae Park2
1Department of Dermatology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea, catholic.ac.kr.
Stem cells international
|January 7, 2026
まとめ
人工多能性幹細胞(iPSC)由来間葉系幹細胞(iMSC)からの分泌物質は、アトピー性皮膚炎(AD)の治療に有望であることが示されています。このiMSC分泌物は、細胞培養およびADマウスモデルの両方で炎症を軽減し、皮膚バリア機能を改善しました。
科学分野:
- 幹細胞生物学
- 皮膚科学
- 免疫学
背景:
- アトピー性皮膚炎(AD)は、生活の質に影響を与える慢性的な炎症性皮膚疾患です。
- 管理は、炎症の軽減と皮膚バリア機能の回復に焦点を当てています。
研究 の 目的:
- iMSC分泌物のアトピー性皮膚炎における保護および治療的可能性を調査すること。
- iMSC分泌物が皮膚細胞およびADマウスモデルに及ぼす影響を評価すること。
主な方法:
- in vitro:HaCaT細胞をiMSC分泌物で処理し、生存率、バイオマーカー発現、および移動を評価しました。
- in vivo:DNCB誘発ADマウスモデルをiMSC分泌物で処理し、臨床、組織学的、および免疫学的分析を行いました。
- 基礎となる生物学的メカニズムを特定するためのプロテオーム解析。
主要な成果:
- iMSC分泌物は、in vitroでのAD誘発性細胞死およびバイオマーカー発現を減少させました。
- 高用量のiMSC分泌物は、ADマウスモデルにおいて臨床指標を改善しました。
- 血清IgE、IL-4、IL-31、IL-6レベルおよび皮膚ADバイオマーカーを減少させました。
- プロテオーム解析により、免疫調節および皮膚バリア修復が明らかになりました。
結論:
- iMSC分泌物は、顕著な抗炎症および再生特性を示します。
- これは、iMSC分泌物がアトピー性皮膚炎の潜在的な治療薬であることを示唆しています。
関連する概念動画
Clinical Applications of Epidermal Stem Cells
3.2K
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...
3.2K
iPS Cell Differentiation
3.0K
The ability of induced pluripotent stem cells or iPSCs to differentiate into most body cell types has stimulated repair and regenerative medicine research over the past few decades. iPSC-derived blood cells, hepatocytes, beta islet cells, cardiomyocytes, neurons, and other cell types can repair injuries or regenerate damaged tissue in diseases such as diabetes and neurodegenerative disorders.
3.0K
Renewal of Skin Epidermal Stem Cells
3.0K
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...
3.0K
Mesenchymal Stem Cells
5.5K
Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their...
5.5K
Induced Pluripotent Stem Cells
27.2K
Stem cells are undifferentiated cells that divide and produce different types of cells. Ordinarily, cells that have differentiated into a specific cell type are post-mitotic—that is, they no longer divide. However, scientists have found a way to reprogram these mature cells so that they “de-differentiate” and return to an unspecialized, proliferative state. These cells are also pluripotent like embryonic stem cells—able to produce all cell types—and are therefore...
27.2K
EPS and iPS Cells in Disease Research
3.4K
Embryonic and induced pluripotent stem cells are excellent models for disease research because of their ability to self-renew and differentiate into most cell types. Somatic cells from a patient are isolated and reprogrammed into induced pluripotent stem cells or iPSCs. These iPSCs are later differentiated into the desired cell type, which mirrors the diseased cell of the patient. In this way, disease models have been created for investigating diseases such as Down syndrome, type I diabetes,...
3.4K

