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| Content Provider | PubMed Central |
|---|---|
| Author | Zeevi, A. Rozenszajn, L. A. Goldman, I. |
| Abstract | The cloning potential of PHA-treated T cells is significantly enhanced when lymphocyte culture fluid (LCF) from mitogen-treated lymphocytes is added to the soft agar culture system. The mitogens seem to stimulate the release of a lymphocyte colony enhancing factor (LCEF) into the culture medium. A study of the physico-chemical properties of the LCEF revealed that it is a nondialyzable, heat-labile molecule which migrates in the haptoglobin (2--2) post-transferrin region in acrylamide electrophoresis. It is stable to RNase and DNase but labile to papain and trypsin. The LCEF was partially purified from the crude LCF using a sequence of techniques--ammonium sulphate precipitation, DEAE-cellulose and Bio-Gel P-150 chromatography and disc electrophoresis. The mol. wt of the purified LCEF, determined from gel filtration chromatography, was 90,000--110,000. |
| Starting Page | 523 |
| File Format | |
| ISSN | 13652567 |
| e-ISSN | 13652567 |
| Journal | Immunology |
| Issue Number | 3 |
| Volume Number | 34 |
| Language | English |
| Publisher Date | 1978-03-01 |
| Access Restriction | Open |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Immunology and Allergy Immunology |
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