Long-Term Lymphohematopoietic Reconstitution by a Single CD34-Low/Negative Hematopoietic Stem Cell

American Association for the Advancement of Science (AAAS) - Tập 273 Số 5272 - Trang 242-245 - 1996
Masatake Osawa1, Ken‐ichi Hanada2, Hirofumi Hamada2, Hiromitsu Nakauchi1
1M. Osawa and H. Nakauchi, Department of Immunology, Institute of Basic Medical Sciences and Center for Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba Science-City, Ibaraki 305, Japan.
2K.-i. Hanada and H. Hamada, Department of Molecular Biotherapy, Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Tokyo 170, Japan.

Tóm tắt

Hematopoietic stem cells (HSCs) supply all blood cells throughout life by making use of their self-renewal and multilineage differentiation capabilities. A monoclonal antibody raised to the mouse homolog of CD34 (mCD34) was used to purify mouse HSCs to near homogeneity. Unlike in humans, primitive adult mouse bone marrow HSCs were detected in the mCD34 low to negative fraction. Injection of a single mCD34 lo/− , c-Kit + , Sca-1 + , lineage markers negative (Lin − ) cell resulted in long-term reconstitution of the lymphohematopoietic system in 21 percent of recipients. Thus, the purified HSC population should enable analysis of the self-renewal and multilineage differentiation of individual HSCs.

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American Association for the Advancement of Science (AAAS)

Tập 273 Số 5272

242-245

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