Functional Properties of T Lymphocytes

A study of the composition and functional properties of spleen cells from the immune deficient CBA/HN mice and their F1 progeny is reported. While abnormalities were seen in both the numbers and function of thymus-independent (B) lymphocytes, all studies involving thymus-dependent (T) lymphocytes were normal. The X-linked nature of the immune defect in these mice was therefore attributed to abnormal or absent B lymphocytes. The possible nature of this defect and the similarity of the immune defect in these mice to certain human X-linked immunodeficiency diseases are discussed.

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Idiotypes on major histocompatibility complex-restricted virus-immune cytotoxic T lymphocytes.

Journal of Experimental Medicine ◽

10.1084/jem.153.6.1562 ◽

1981 ◽

Vol 153 (6) ◽

pp. 1562-1573 ◽

Cited By ~ 12

Author(s):

U R Kees

Keyword(s):

Major Histocompatibility Complex ◽

T Lymphocytes ◽

Functional Properties ◽

Cytotoxic T Lymphocytes ◽

Major Histocompatibility ◽

Binding Studies ◽

Histocompatibility Complex ◽

Ctl Responses

Specificity-associated determinants could be demonstrated on major histocompatibility complex (MHC)-restricted virus-immune cytotoxic T lymphocytes (CTL) using antisera raised in syngeneic mice. This result indicates that the number of clonotypes sufficiently small to allow the detection of such idiotypic determinants. The functional properties of three anti-idiotypic antisera were tested in blocking studies and by idiotypic antisera plus complement. Whereas the former test did not reveal any results obtained from binding studies, i.e., all three anti-idiotypic antisera specifically reacted with CTL of the type used for immunization and had no effect on syngeneic influenza-immune CTL, syngeneic alloreactive CTL, or NDV-immune CTL of an H-2-disparate strain. These results are discussed in terms of current models for MHC-restricted CTL responses.

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Development and Functional Properties of Thymic and Extrathymic T Lymphocytes

Critical Reviews™ in Immunology ◽

10.1615/critrevimmunol.v28.i5.40 ◽

2008 ◽

Vol 28 (5) ◽

pp. 441-466 ◽

Cited By ~ 15

Author(s):

Krista M. Heinonen ◽

Claude Perreault

Keyword(s):

T Lymphocytes ◽

Functional Properties

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Quaternary structure of Limulus polyphemus hemocyanin

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100081747 ◽

1978 ◽

Vol 36 (2) ◽

pp. 176-177

Author(s):

T. Wichertjes ◽

E.J. Kwak ◽

E.F.J. Van Bruggen

Keyword(s):

Electron Microscopy ◽

Functional Properties ◽

Horseshoe Crab ◽

Temperature Jump ◽

Quaternary Structure ◽

Crystallographic Analysis ◽

Limulus Polyphemus ◽

Oxygen Binding ◽

X Ray ◽

Intact Molecule

Hemocyanin of the horseshoe crab (Limulus polyphemus) has been studied in nany ways. Recently the structure, dissociation and reassembly was studied using electron microscopy of negatively stained specimens as the method of investigation. Crystallization of the protein proved to be possible and X-ray crystallographic analysis was started. Also fluorescence properties of the hemocyanin after dialysis against Tris-glycine buffer + 0.01 M EDTA pH 8.9 (so called “stripped” hemocyanin) and its fractions II and V were studied, as well as functional properties of the fractions by NMR. Finally the temperature-jump method was used for assaying the oxygen binding of the dissociating molecule and of preparations of isolated subunits. Nevertheless very little is known about the structure of the intact molecule. Schutter et al. suggested that the molecule possibly consists of two halves, combined in a staggered way, the halves themselves consisting of four subunits arranged in a square.

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