Abstract:
:Monoclonal antibodies (mAbs) specific for CD4 are potent inhibitors of HIV replication in vitro. These agents may be useful prophylactically or in chronic HIV infection if they can be administered without inducing immunosuppression. In the present study, we explored the safety of a CD4-specific murine mAb in rhesus monkeys. The mAb 5A8, which binds to domain 2 of the CD4 molecule, inhibits AIDS virus replication noncompetitively at a postvirus binding step. This antibody, which had a similar affinity for rhesus monkey and human CD4 cells, efficiently inhibited in vitro replication of both HIV-1 and the simian immunodeficiency virus of macaques. A single 3-mg/kg injection of mAb 5A8 into normal rhesus monkeys coated all circulating and lymph node CD4 cells for 4-6 days. CD4 cells were not cleared from circulation nor was the CD4 molecule modulated from the lymphocyte surface. In fact, administration of mAb 5A8 resulted in an approximately one-to twofold increase in absolute number of circulating CD4 cells. Repeated administration in normal rhesus monkeys resulted in CD4 lymphocyte coating with mAbs for > 9 days without CD4 cell clearance or modulation. While coated with mAbs, PBLs of these monkeys retained normal in vitro proliferative responses to mitogens and these animals generated normal humoral responses in vivo to tetanus toxoid. Loss of cell coating with mAbs in normal monkeys corresponded to the appearance of anti-mouse immunoglobulin antibodies. Thus, administration of certain anti-CD4 mAbs capable of blocking HIV replication can achieve coating of the entire CD4 cell pool in rhesus monkeys without inducing significant cell loss or immunosuppression.
journal_name
AIDS Res Hum Retrovirusesjournal_title
AIDS research and human retrovirusesauthors
Reimann KA,Burkly LC,Burrus B,Waite BC,Lord CI,Letvin NLdoi
10.1089/aid.1993.9.199subject
Has Abstractpub_date
1993-03-01 00:00:00pages
199-207issue
3eissn
0889-2229issn
1931-8405journal_volume
9pub_type
杂志文章abstract::Immunoliposomes containing monoclonal antibodies (MAbs) to the costimulatory molecules CD28 and CTLA4 and their counterreceptors B7-1 (CD80) and B7-2 (CD86) were evaluated for the ability to increase the immune response to recombinant envelope protein rgp120 of the MN strain of human immunodeficiency virus type 1 (HIV...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1998.14.409
更新日期:1998-03-20 00:00:00
abstract::HIV-1 group N (HIV-1/N) remains rare and mainly restricted to Cameroon. In this study, we report a new HIV-1/N infected case identified during routine HIV screening activities in Yaounde. The genetic characterization of the near full-length genome of this virus strain revealed that it is genetically distinct to all HI...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2018.0015
更新日期:2018-07-01 00:00:00
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journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2020.0016
更新日期:2020-11-01 00:00:00
abstract::Covert vertical transmission of feline immunodeficiency virus (FIV), the feline counterpart of human immunodeficiency virus type 1 (HIV-1), was identified in kittens born to FIV-infected cats. DNA PCR detected FIV gag and env sequences in tissues from kittens nonviable at birth, and in viable kittens monitored postnat...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/088922203765551764
更新日期:2003-05-01 00:00:00
abstract::Eight fragments derived from the HIV-1 pol gene were expressed as recombinant polypeptides in Escherichia coli. The fragments were from the portion of the pol gene that encodes the reverse transcriptase. The expressed peptides were analyzed immunologically with sera from HIV-1-infected individuals. Three distinct immu...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1989.5.61
更新日期:1989-02-01 00:00:00
abstract::Abstract Multiple HIV-1 subtypes and circulating recombinant forms (CRFs) are known to cocirculate in Africa. In West Africa, the high prevalence of CRF02_AG, and cocirculation of subtype A, CRF01_AE, CRF06_cpx, and other complex intersubtype recombinants has been well documented. Mali, situated in the heart of West A...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2008.0111
更新日期:2009-01-01 00:00:00
abstract::Extensive studies have been carried out on native Amerindian populations living in French Guiana in an attempt to detect human T cell leukemia virus type 2 (HTLV-2). However, the first strain of this virus identified in this region was not detected in these populations, but in a Brazilian woman of Amerindian origin. C...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/08892220151126689
更新日期:2001-04-10 00:00:00
abstract::The Matilda effect illustrates how the contributions of women to science have been historically attributed to their male colleagues in some circumstances. This effect may perpetuate and even increase the gender gap we currently face. Recognizing the work of great women who led our way and committed their careers to tr...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2018.0082
更新日期:2018-09-01 00:00:00
abstract::An EBV-transformed lymphoblastoid B cell clone (A12) derived from peripheral blood lymphocytes of an HIV-1-infected individual is described. The immunoglobulin isotype produced by this clone was IgM, and Southern blot analysis of immunoglobulin gene rearrangement showed a monoclonal pattern. The A12 monoclonal antibod...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1989.5.73
更新日期:1989-02-01 00:00:00
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journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2006.22.749
更新日期:2006-08-01 00:00:00
abstract::Eight HIV-2-infected Caucasian men living in the same geographical area in Gipuzkoa (northern Spain) have been identified in the last 5 years. HIV-2 infection in this area is uncommon, and no other cases of HIV-2 infection have been found after extensive testing for HIV-1/2 antibodies. Epidemiological data suggested a...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/088922201750102481
更新日期:2001-03-20 00:00:00
abstract::In vitro and in vivo studies have demonstrated that HIV can infect thymocytes at different maturational stages and lead to changes in the thymic microenvironment. To determine the effect of HIV on thymic stromal cells and the production of cytokines important in thymocyte development, three types of adherent thymic cu...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1994.10.1221
更新日期:1994-10-01 00:00:00
abstract::We show that the squirrel monkey Saimiri sciureus is susceptible to experimental infection with either syngeneic or allogeneic HTLV-1-immortalized cells. As in humans, such experimental inoculation leads to chronic infection, and HTLV-1 provirus was detected in PBMCs by PCR. Chronically infected monkeys developed high...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章,评审
doi:10.1089/08892220050193245
更新日期:2000-11-01 00:00:00
abstract::An atypical HIV-1 strain (CAM001) was identified in a pregnant Cameroonian woman in 1995. HMA subtyping of the env region was unsuccessful, and sequence analyses were performed. Unique sequence motifs were found at the V3 tip (GAGRALHA and GAGRAWIHA), and phylogenetic studies showed that the env C2-V5 sequence branche...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/088922299309883
更新日期:1999-11-20 00:00:00
abstract::The presence of human immunodeficiency virus (HIV)-specific antibodies was examined in plasma and cervicovaginal (mucosal) samples of 24 HIV-exposed uninfected (EU) female sexual partners of HIV-infected men, and compared with findings in 18 HIV-infected and 15 low-risk HIV-uninfected women. Only HIV-infected women ha...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/08892220152741388
更新日期:2001-12-10 00:00:00
abstract::India has experienced multiple introductions of diverse HIV-1 subtypes A, B, C, and E, along with subtype B of HIV-2 between the 1980s and early 1990s. In this study, we have carried out a molecular investigation of 21 heterosexually and vertically acquired HIV-infected individuals from the New Bombay area, who tested...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/088922201300119743
更新日期:2001-05-01 00:00:00
abstract::A highly purified saponin from Q. saponaria (QS-21) was tested in juvenile rhesus macaques for adjuvant activity and toxicity. The QS-21 was tested alone or as part of an experimental subunit HIV-1 vaccine containing a truncated recombinant HIV-1 envelope protein (gp160D) adsorbed to alum. Antibody responses were meas...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1992.8.1413
更新日期:1992-08-01 00:00:00
abstract::Even in the setting of maximally suppressive antiretroviral therapy (ART), HIV persists indefinitely. Several mechanisms might contribute to this persistence, including chronic inflammation and immune dysfunction. In this study, we have explored a preclinical model for the evaluation of potential interventions that mi...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2012.0162
更新日期:2013-02-01 00:00:00
abstract::In a cross-sectional study of 926 subjects from 10 drug treatment programs conducted in 1984 in New Jersey, the seroprevalence of human immunodeficiency virus (HIV) was 35% overall; 30% in whites, 33% in hispanics, and 46% in blacks (p = 0.01 for comparison of blacks to non-blacks). Univariate analysis showed the sero...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1990.6.1459
更新日期:1990-12-01 00:00:00
abstract::Differences in the extent of genetic diversity have been observed in human immunodeficiency virus type-1 (HIV-1) envelope sequences early in infection, and this has been linked to gender and to modifiable exogenous factors such as hormonal contraceptive use and genital tract infections. But it is unclear whether envel...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2006.22.430
更新日期:2006-05-01 00:00:00
abstract::To assess the impact of chronic viral liver disease (CVLD) on hospital admissions and death in HIV-infected patients since the introduction of highly active antiretroviral therapy, all hospital charts, from January 1996 to December 2000, in a large HIV/AIDS reference center in Madrid were reviewed. Discharge diagnosis...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/08892220152644160
更新日期:2001-11-01 00:00:00
abstract::In this report we have highlighted only a few examples of the extensive efforts underway to better understand the process of HIV pathogenesis, to develop new therapeutic agents to inhibit virus replication, and to identify strategies to restore damage done to the immune system during HIV disease progression. It is exp...
journal_title:AIDS research and human retroviruses
pub_type:
doi:10.1089/aid.1996.12.859
更新日期:1996-07-01 00:00:00
abstract::We performed a placebo-controlled study to evaluate the effects of immunomodulatory treatment with thalidomide on HIV levels, TNF-alpha levels, and immune status of 31 HIV-infected individuals, after temporary suppression of viral replication with antiretroviral drugs. Treatment with a combination of zidovudine and la...
journal_title:AIDS research and human retroviruses
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1089/088922299310269
更新日期:1999-09-01 00:00:00
abstract::The Tax protein encoded by HTLV-1 plays a key role in the development of ATL in infected individuals. Our previous studies showed that tax transgenic mice develop disease that is almost identical to human ATL, with widespread organ invasion by lymphomatous cells and the development of leukemia. The same pathology deve...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2009.0212
更新日期:2010-05-01 00:00:00
abstract::Information about the efficacy of antiretroviral drugs in HIV-1 group O strains as well on the virus evolution in terms of resistance development in vivo is very limited. We assessed the clinical, immunological, and virological response to antiretroviral therapy as well as the selection of drug resistance in six HIV-1...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2005.21.602
更新日期:2005-07-01 00:00:00
abstract::Herpes simplex virus-2 (HSV-2) suppression with acyclovir or valacyclovir reduces HIV-1 viral RNA levels; one hypothesis is that HSV-2 suppression reduces immune activation. We measured T cell immune activation markers among women participating in a randomized placebo-controlled trial of valacyclovir to reduce HIV-1 R...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章,随机对照试验
doi:10.1089/AID.2012.0071
更新日期:2013-01-01 00:00:00
abstract::This study explores whether previous failures on antiretroviral drug regimens preclude the possibility of immune restoration. This was assessed by evaluating T cell subset changes in individuals who received a salvage regimen of highly active antiretroviral therapy (HAART) after initially failing protease inhibitor mo...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1998.14.561
更新日期:1998-05-01 00:00:00
abstract::We studied the phylogeny of HIV-1 subtype F viruses from children and adults in Romania in order to (1) clarify whether the Romanian subtype F epidemic was caused by one or several virus introductions and (2) gain insight into the route of spread of the HIV-1 subtype F virus among children and adults in Romania. env (...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/088922200309205
更新日期:2000-03-01 00:00:00
abstract::HGP-30-KLH vaccine in alum at doses of 10, 25, 50, and 100 micrograms/kg administered intramuscularly at weeks 0, 4, and 10 appear well-tolerated clinically. Local pain at the injection site, appears to be the main clinical toxicity. Laboratory parameters are not affected by administration of the vaccine candidate exc...
journal_title:AIDS research and human retroviruses
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1089/aid.1992.8.1321
更新日期:1992-08-01 00:00:00
abstract::HIV type 1 (HIV-1) envelope glycoproteins (Env) mediate virus entry and are the target of neutralizing antibodies. Binding of the metastable HIV-1 Env trimer to the CD4 receptor triggers structural rearrangements that mediate Env conformational transitions from a closed conformation to a more open state through an int...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章,评审
doi:10.1089/AID.2018.0102
更新日期:2018-09-01 00:00:00