Crawling movements of lymphocytes on and beneath fibroblasts in culture

T. W. Chang, Esteban Celis, H. N. Eisen, F. Solomon

Research output: Contribution to journalArticle

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Abstract

Some lymphocytes become highly motile upon immunological stimulation in vivo or in vitro. When introduced into a culture of 3T3 or L cells and followed by live-cell microscopy, some of these lymphocytes were observed to crawl on top of, along the edges of, and preferentially beneath the attached fibroblasts. The crawling could be as rapid as 20 μm/min, easily detectable without a time-lapse device. The striking ability of crawling lymphocytes to penetrate beneath attached 3T3 cells provided a quantitative means to compare the crawling activity of different lymphocyte populations under various conditions. Crawling was diminished by inhibitors of energy metabolism, by agents that disrupt the cytoskeleton, and by absence of Mg2+ and Ca2+, but not of Ca2+ alone. Crawling lymphocytes were virtually absent in normal thymus and spleen cells. They increased greatly in 5-day mixed lymphocyte cultures and in peritoneal exudate lymphocytes taken after mice had been immunized with allogeneic tumor cells. T cells accounted for most of the crawlers. Of two T-cell leukemias tested, R1+ cells were crawlers whereas EL-4 cells were not. The H-2 haplotype of the 3T3 fibroblasts (i.e., whether syngeneic or allogeneic) had no apparent effect on lymphocyte crawling activity. The crawling may relate to the exploration of cell surface antigens by lymphocytes (immune surveillance), to the mode of action of cytotoxic T cells, to the migration of lymphocytes across blood vessel walls or to be penetration of lymphocytes into 'solid' masses of normal tissue or tumor cells.

Original languageEnglish (US)
Pages (from-to)2917-2921
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Volume76
Issue number6
DOIs
StatePublished - Jan 1 1979

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Fibroblasts
Lymphocytes
T-Lymphocytes
T-Cell Leukemia
3T3 Cells
Exudates and Transudates
Surface Antigens
Cytoskeleton
Thymus Gland
Haplotypes
Energy Metabolism
Cell Movement
Blood Vessels
Microscopy
Immunization
Neoplasms
Spleen
Equipment and Supplies
Population

ASJC Scopus subject areas

  • General

Cite this

Crawling movements of lymphocytes on and beneath fibroblasts in culture. / Chang, T. W.; Celis, Esteban; Eisen, H. N.; Solomon, F.

In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 76, No. 6, 01.01.1979, p. 2917-2921.

Research output: Contribution to journalArticle

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