MIP-1α and TGF-β Production in CD34+ Progenitor–Stromal Cell Coculture Systems: Effects of Progenitor Isolation Method and Cell–Cell Contact

Autor: Abigail W. Harbol, Todd Belanger, Camille N. Abboud, Jane L. Liesveld, Karen Rosell
Rok vydání: 2000
Předmět:
Zdroj: Blood Cells, Molecules, and Diseases. 26:261-275
ISSN: 1079-9796
DOI: 10.1006/bcmd.2000.0305
Popis: Macrophage inflammatory protein-1alpha (MIP-1alpha) is a C-C chemokine which has antiproliferative effects on early hematopoietic progenitors and stimulatory effects on later progenitors. It also possesses chemotactic and activating properties for monocytes, macrophages, and T-cells. CD34+ progenitors isolated utilizing an avidin-biotin immunoadsorption column produced significant amounts of MIP-1alpha from 24 h onward when cultured in medium with 10% fetal calf serum (>200 pg/ml). Such production persisted through 96 h of culture and was greater when such progenitors were cocultured with a preformed marrow stromal layer (4000 pg/ml at 24 h). The production of MIP-1alpha declined over time of coculture with stromal layers, and stromal layers themselves produced minimal MIP-1alpha as detected by ELISA
Databáze: OpenAIRE