Abstract
We have characterized the pre-B cell colony stimulating activity (pre-B cell CSA) from LICR LON HMY2 conditioned medium (CM) by a variety of biochemical techniques. Pre-B cell CSA was found to be associated with a heat stable glycoprotein which has an isoelectric point of 8.3 and a mol. wt, as determined by polyacrylamide gel electrophoresis, of 28-32 kD. The relationship of this activity to previously described factors acting on cells of the B cell lineage is discussed.
Original language | English |
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Pages (from-to) | 637-43 |
Number of pages | 7 |
Journal | Clinical and Experimental Immunology |
Volume | 59 |
Issue number | 3 |
Publication status | Published - Mar 1985 |
Keywords
- B-Lymphocytes
- Cell Line
- Cells, Cultured
- Colony-Stimulating Factors
- Electrophoresis, Polyacrylamide Gel
- Humans
- Hydrolases
- Isoelectric Point
- Molecular Weight
- Periodic Acid
- Plasmacytoma
- Potassium Compounds
- Stem Cells