R O JOHNSON
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Explore the profile of R O JOHNSON including associated specialties, affiliations and a list of published articles.
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Articles
61
Citations
347
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Recent Articles
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Taylor S, JOHNSON R, RUBEN L, Clothier R
Apoptosis
. 2003 Jan;
8(1):81-90.
PMID: 12510155
Wild-type populations of amphibians, unlike mammalians, appear to be resistant to spontaneous and chemically induced neoplasms. Few true cancers have been reported for non-isogeneic members of Xenopus laevis, despite their...
4.
RUBEN L, JOHNSON R, Bergin A, Clothier R
Apoptosis
. 2001 Feb;
5(3):225-33.
PMID: 11225844
Spontaneous and induced cancers are rare in non-isogeneic or inbred amphibians. Neoplastic cells become immortalized through loss of a normal capacity to die by apoptosis. Mature lymphocytes of mammals require...
5.
Nera M, Vanderbeek G, JOHNSON R, RUBEN L, Clothier R
Dev Comp Immunol
. 2000 Jun;
24(6-7):641-52.
PMID: 10831798
Inflammation is avoided in apoptosis by early removal of dying cells by macrophages (MOs). In mammalian cells, an early aspect of apoptosis is the translocation of phosphatidylserine (PS) from the...
6.
McMahan R, JOHNSON R, RUBEN L, Clothier R
Immunol Lett
. 2000 Feb;
70(3):179-83.
PMID: 10656671
T cell receptor (TCR) ligation and protein kinase C (PKC) activation stimulate proliferation and modulate apoptosis in both mammalian and amphibian lymphocytes. The potential relationship between apoptosis and the cell...
7.
Haberfeld M, JOHNSON R, RUBEN L, Clothier R, Shiigi S
Neuroimmunomodulation
. 1999 Apr;
6(3):175-81.
PMID: 10213915
Impaired and healthy cells undergo suicide using an intrinsic genetic program. Exposure to stress-related alpha2- or beta-adrenergics for 4 or 20 h in vitro had no effect on apoptosis in...
8.
Mangurian C, JOHNSON R, McMahan R, Clothier R, RUBEN L
Immunol Lett
. 1998 Dec;
64(1):31-8.
PMID: 9865599
Ligation of the externally expressed Fas (APO1/CD95) molecule will initiate programmed cell death (apoptosis), in many mammalian developing and adult cells. Fas-induced apoptosis has not been demonstrated with the cells...
9.
Grant P, Clothier R, JOHNSON R, RUBEN L
Dev Comp Immunol
. 1998 Aug;
22(4):449-55.
PMID: 9699490
During Anuran metamorphosis larval structures regress, adult structures form anew and impaired T cell immune functions are noted, as are alterations in endogenous glucocorticoid titers. In situ histological data, after...
10.
RUBEN L, de Leon R, JOHNSON R, Bowman S, Clothier R
Immunol Lett
. 1996 Jul;
51(3):157-61.
PMID: 8832284
In anuran metamorphosis, histoincompatible adult cells arise within an immunocompetent larval body. However, the larvae are unresponsive to these altered-self cells. The basis for this tolerance is an issue of...