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Growth failure and AIDS-like cachexia syndrome in HIV-1 transgenic mice. 1994

T J Santoro, and J L Bryant, and J Pellicoro, and M E Klotman, and J B Kopp, and L A Bruggeman, and R R Franks, and A L Notkins, and P E Klotman
Department of Medicine, University of Colorado Health Sciences Center, Denver 80220.

The mechanisms which predispose to growth failure in infants and children infected with immunodeficiency virus type-1 (HIV-1) are not fully understood. The contributions of viral replication and CD4+ T cell depletion to growth failure in an HIV-1 transgenic mouse model were investigated. Mice homozygous for the transgene, a gag-pol deletion mutant of the HIV-1 provirus pNL4-3, exhibited marked cachexia, growth retardation, lymphoproliferation with a reduction in the percentage of CD4+ T cells but an increase in the absolute number of splenic CD4+ and CD8+ T cells, thymic hypoplasia, and early death. Despite the absence of T cells, athymic nude mice, homozygous for the HIV transgene, displayed comparable growth failure. The results indicate that AIDS-like cachexia may be produced by expression of viral envelope or accessory genes, need not be accompanied by absolute depletion of CD4+ T cells, and may occur independent of T cell function.

UI MeSH Term Description Entries
D008297 Male Males
D008822 Mice, Transgenic Laboratory mice that have been produced from a genetically manipulated EGG or EMBRYO, MAMMALIAN. Transgenic Mice,Founder Mice, Transgenic,Mouse, Founder, Transgenic,Mouse, Transgenic,Mice, Transgenic Founder,Transgenic Founder Mice,Transgenic Mouse
D001835 Body Weight The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms. Body Weights,Weight, Body,Weights, Body
D002100 Cachexia General ill health, malnutrition, and weight loss, usually associated with chronic disease.
D005260 Female Females
D005814 Genes, Viral The functional hereditary units of VIRUSES. Viral Genes,Gene, Viral,Viral Gene
D006720 Homozygote An individual in which both alleles at a given locus are identical. Homozygotes
D000163 Acquired Immunodeficiency Syndrome An acquired defect of cellular immunity associated with infection by the human immunodeficiency virus (HIV), a CD4-positive T-lymphocyte count under 200 cells/microliter or less than 14% of total lymphocytes, and increased susceptibility to opportunistic infections and malignant neoplasms. Clinical manifestations also include emaciation (wasting) and dementia. These elements reflect criteria for AIDS as defined by the CDC in 1993. AIDS,Immunodeficiency Syndrome, Acquired,Immunologic Deficiency Syndrome, Acquired,Acquired Immune Deficiency Syndrome,Acquired Immuno-Deficiency Syndrome,Acquired Immuno Deficiency Syndrome,Acquired Immuno-Deficiency Syndromes,Acquired Immunodeficiency Syndromes,Immuno-Deficiency Syndrome, Acquired,Immuno-Deficiency Syndromes, Acquired,Immunodeficiency Syndromes, Acquired,Syndrome, Acquired Immuno-Deficiency,Syndrome, Acquired Immunodeficiency,Syndromes, Acquired Immuno-Deficiency,Syndromes, Acquired Immunodeficiency
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000831 Animals, Newborn Refers to animals in the period of time just after birth. Animals, Neonatal,Animal, Neonatal,Animal, Newborn,Neonatal Animal,Neonatal Animals,Newborn Animal,Newborn Animals

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