Evidence map›Paper›PMID 39808267›Full record

ArticleCell and tissue research2025

CD9/SOX2-positive cells in the intermediate lobe of the rat pituitary gland exhibit mesenchymal stem cell characteristics.

Ayano Shindo, Morio Azuma, Ken Fujiwara, Saishu Yoshida, Kotaro Horiguchi

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Article in Cell and tissue research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

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4 · The record

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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Ayano ShindoLaboratory of Anatomy and Cell Biology, Department of Health Sciences, Kyorin University, 5-4-1 Shimorenjaku, Mitaka, Tokyo, 181-8612, Japan.
Morio AzumaDepartment of Pharmacology, Graduate School of Medicine, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan.
Ken FujiwaraDepartment of Biological Science, Faculty of Science, Kanagawa University, 3-27-1 Rokkakubashi, Yokohama, Kanagawa, 259-1293, Japan.
Saishu YoshidaDepartment of Biomolecular Science, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba, 274-8510, Japan.
Kotaro HoriguchiLaboratory of Anatomy and Cell Biology, Department of Health Sciences, Kyorin University, 5-4-1 Shimorenjaku, Mitaka, Tokyo, 181-8612, Japan. kota@ks.kyorin-u.ac.jp.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Adult tissue stem cells of the anterior pituitary gland, CD9/SOX2-positive cells, are believed to exist in the marginal cell layer (MCL) bordering the residual lumen of the Rathke's pouch. These cells migrate from the intermediate lobe side of the MCL (IL-MCL) to the anterior lobe side of the MCL and may be involved in supplying hormone-producing cells. Previous studies reported that some SOX2-positive cells of the anterior lobe differentiate into skeletal muscle cells. These findings suggest that CD9/SOX2-positive cells in the anterior pituitary have mesenchymal stem cell (MSC) properties. To substantiate this hypothesis, we examined whether CD9-positive cells isolated from IL-MCL of adult male rats differentiate into mesenchymal cells, such as endothelial cells, adipocytes, chondrocytes, and osteocytes. Immunohistochemical analysis revealed that the CD9-positive cells were positive for the MSC markers, CD349, CD105, CD271, and CD273 and were detected in the early postnatal period at the boundary between the posterior and intermediate lobes but not in the embryonic period. In addition, some adult tissue stem cells derived from neural crest cells and bone marrow haematopoietic stem cells were positive for both CD9 and MSC markers, indicating that several CD9/SOX2-positive cells in the IL-MCL of the pituitary gland are MSCs that invaded from external tissues during pituitary development in the early postnatal period and exist in the adult tissue stem cells as suppliers of hormone-producing and endothelial cells in the anterior lobe. These findings should have implications for the application of CD9/SOX2-positive cells in regenerative therapy of the pituitary.

Indexed as

Mesenchymal Stem CellsPituitary GlandSOXB1 Transcription FactorsTetraspanin 29AnimalsCell DifferentiationMaleRatsRats, Sprague-DawleySox2 protein, ratSOXB1 Transcription FactorsTetraspanin 29Anterior pituitary glandCD9/SOX2HormoneMesenchymal stem cellsRats

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.