Biomaterial Database

Preferential survival of CD4+ T lymphocytes engineered with anti-human immunodeficiency virus (HIV) genes in HIV-infected individuals. 2005

Richard A Morgan, and Robert Walker, and Charles S Carter, and Ven Natarajan, and Jorge A Tavel, and Chris Bechtel, and Betsy Herpin, and Linda Muul, and Zhili Zheng, and Shyla Jagannatha, and Bruce A Bunnell, and Vicki Fellowes, and Julia A Metcalf, and Randy Stevens, and Michael Baseler, and Susan F Leitman, and Elizabeth J Read, and R Michael Blaese, and H Clifford Lane

National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20892, USA.

The present study examined the safety and relative in vivo survival of genetically engineered CD4+ T lymphocytes in human immunodeficiency virus (HIV)-infected individuals. Ten pairs of identical twins discordant for HIV infection were recruited, with the uninfected twin serving as the lymphocyte donor. Ten subjects were treated with a total of 19 separate infusions of retroviral vector-transduced CD4+ enriched T cells. Control (neo gene) or anti-HIV gene (antisense trans-activation response [TAR] element and/or trans-dominant Rev)-engineered lymphocytes were monitored in peripheral blood for 3 years, using a vector-specific PCR assay. Data from 9 of the 10 patients (15 of the 19 infusions) demonstrated preferential survival of CD4+ lymphocytes containing the anti-HIV gene(s) in the immediate weeks after infusion. In six of six patients studied long term (>100 weeks), only T cells containing the anti-HIV genes were consistently detected. In addition, a marked survival advantage of anti-HIV gene-containing T cells was observed in a patient treated during a period of high viral load. Thus, these data strongly support the hypothesis that anti-HIV genes afford a survival advantage to T cells and potential benefit to HIV-1+ individuals.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D002470	Cell Survival	The span of viability of a cell characterized by the capacity to perform certain functions such as metabolism, growth, reproduction, some form of responsiveness, and adaptability.	Cell Viability,Cell Viabilities,Survival, Cell,Viabilities, Cell,Viability, Cell
D004200	Diseases in Twins	Disorders affecting TWINS, one or both, at any age.	Diseases in Twin,Twin, Diseases in,Twins, Diseases in,in Twin, Diseases,in Twins, Diseases
D005822	Genetic Vectors	DNA molecules capable of autonomous replication within a host cell and into which other DNA sequences can be inserted and thus amplified. Many are derived from PLASMIDS; BACTERIOPHAGES; or VIRUSES. They are used for transporting foreign genes into recipient cells. Genetic vectors possess a functional replicator site and contain GENETIC MARKERS to facilitate their selective recognition.	Cloning Vectors,Shuttle Vectors,Vectors, Genetic,Cloning Vector,Genetic Vector,Shuttle Vector,Vector, Cloning,Vector, Genetic,Vector, Shuttle,Vectors, Cloning,Vectors, Shuttle
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D012190	Retroviridae	Family of RNA viruses that infects birds and mammals and encodes the enzyme reverse transcriptase. The family contains seven genera: DELTARETROVIRUS; LENTIVIRUS; RETROVIRUSES TYPE B, MAMMALIAN; ALPHARETROVIRUS; GAMMARETROVIRUS; RETROVIRUSES TYPE D; and SPUMAVIRUS. A key feature of retrovirus biology is the synthesis of a DNA copy of the genome which is integrated into cellular DNA. After integration it is sometimes not expressed but maintained in a latent state (PROVIRUSES).	Leukemogenic Viruses,Leukoviruses,Oncornaviruses,Oncovirinae,Oncoviruses,Oncoviruses, Type C,RNA Tumor Viruses,Retroviruses,Type C Oncoviruses,C Oncovirus, Type,C Oncoviruses, Type,Leukemogenic Virus,Leukovirus,Oncornavirus,Oncovirus,Oncovirus, Type C,RNA Tumor Virus,Retrovirus,Tumor Virus, RNA,Tumor Viruses, RNA,Type C Oncovirus,Virus, Leukemogenic,Virus, RNA Tumor,Viruses, Leukemogenic,Viruses, RNA Tumor
D014185	Transplantation, Isogeneic	Transplantation between genetically identical individuals, i.e., members of the same species with identical histocompatibility antigens, such as monozygotic twins, members of the same inbred strain, or members of a hybrid population produced by crossing certain inbred strains.	Transplantation, Syngeneic,Isogeneic Transplantation,Isograft Transplantation,Isografting,Syngeneic Transplantation,Transplantation, Isograft
D014430	Twins, Monozygotic	Two off-spring from the same PREGNANCY. They are from a single fertilized OVUM that split into two EMBRYOS. Such twins are usually genetically identical and of the same sex.	Twins, Identical,Identical Twin,Identical Twins,Monozygotic Twin,Monozygotic Twins,Twin, Identical,Twin, Monozygotic