Abstract |
Invariant natural killer T (iNKT) cells are an unusual group of T lymphocytes that recognize glycolipid antigens presented by the major histocompatibility complex class I-related protein CD1d. Because iNKT cells play a regulatory role in the immune system, they are attractive targets for immunotherapy. The marine-sponge-derived glycolipid alpha-galactosylceramide ( alpha-GalCer) potently activates iNKT cells. In vivo administration of alpha-GalCer to mice or humans results in rapid and robust cytokine secretion by iNKT cells, followed by the activation of a variety of cell types of the innate and adaptive immune systems. These potent immunomodulatory activities of alpha-GalCer are being exploited for therapeutic purposes. Preclinical studies in mice have demonstrated that alpha-GalCer and related glycolipids can protect mice against a variety of diseases, including cancer, infections, and several autoimmune and inflammatory conditions. Although alpha-GalCer treatment of mice is associated with unwanted side-effects, it has been proven safe in clinical trials with cancer patients. These studies have raised significant enthusiasm for the development of effective and safe iNKT-cell-based immunotherapies for a variety of human diseases.
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Authors | Vrajesh V Parekh, Michael T Wilson, Luc Van Kaer |
Journal | Critical reviews in immunology
(Crit Rev Immunol)
Vol. 25
Issue 3
Pg. 183-213
( 2005)
ISSN: 1040-8401 [Print] United States |
PMID | 16048435
(Publication Type: Journal Article, Research Support, N.I.H., Extramural, Research Support, U.S. Gov't, P.H.S., Review)
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Chemical References |
- Antigens, CD1
- Galactosylceramides
- Glycolipids
- alpha-galactosylceramide
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Topics |
- Animals
- Antigens, CD1
(analysis)
- Autoimmune Diseases
(drug therapy)
- Carbohydrate Sequence
- Galactosylceramides
(immunology)
- Glycolipids
(immunology)
- Humans
- Infections
(drug therapy)
- Inflammation
(drug therapy)
- Killer Cells, Natural
(immunology)
- Mice
- Molecular Sequence Data
- Molecular Structure
- Neoplasms
(drug therapy)
- T-Lymphocyte Subsets
(immunology)
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