Abstract:
:HIV infection is a risk factor for the tumorigenesis including non-AIDS-defining cancers such as those of the gastrointestinal tract. However, the mechanisms underlying such cancer outgrowth are still unknown. Furthermore, combined HIV/cancer studies are difficult to evaluate using primate models or in the clinical patient setting. To understand the mechanisms of tumor outgrowth in the context of HIV infection, we adopted a humanized mouse model permissive to infection and cancer as well as an in vivo humanized mouse challenge with colon cancer in the context of HIV infection. Immunodeficient NOD SCID IL-2R(-/-) mice were immunologically reconstituted by adoptive transfer of 10(7) HIV-negative donor peripheral blood leukocytes and challenged with 10(6) HCT116 human colon cancer cells. A group of mice was treated with antiretroviral therapy. Tumor microenvironment and epithelial tissues in the context of HIV infection were analyzed using immunohistochemistry. We demonstrate that HIV-infected humanized mice develop significantly larger tumors than uninfected mice (p<0.05). Epithelial cell proliferation in HIV-infected mice is significantly enhanced in comparison to proliferation in uninfected mice (p<0.01). Moreover, the activation of β-catenin, an important step in intestinal epithelial cell proliferation and tumorigenesis, is elevated in the tumors of HIV-infected mice (p<0.0001). Importantly, antiretroviral therapy reverses these pathological processes independently of CD4(+) T cell return. These findings model the ability of HIV infection to result in tumor outgrowth that is evident in HIV-positive patients and lend insight into previously unrecognized mechanisms that may underlie this pathology.
journal_name
AIDS Res Hum Retrovirusesjournal_title
AIDS research and human retrovirusesauthors
Lu R,Wu S,Zhang Y,Xia Y,Huelsmann EJ,Lacek AT,Nabatiyan A,Richards MH,Narasipura SD,Lutgen V,Chen H,Kaufman HL,Chen D,Al-Harthi L,Zloza A,Sun Jdoi
10.1089/AID.2013.0289subject
Has Abstractpub_date
2014-07-01 00:00:00pages
677-84issue
7eissn
0889-2229issn
1931-8405journal_volume
30pub_type
杂志文章abstract::Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the etiologic agent of COVID-19, a disease that as of July 10, 2020, has infected >12 million people and killed >500,000. COVID-19 infection leads to acute respiratory distress syndrome in a subset of patients and is a primary driver of acute morbidity in...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
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journal_title:AIDS research and human retroviruses
pub_type: 杂志文章,评审
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abstract::Diversity of genotypes and prevalence of pretreatment drug resistance (PDR) are challenges for the epidemic control and vaccine development of HIV-1. However, little is known about the situation in Tianjin. Blood samples were collected from newly diagnosed, antiretroviral treatment (ART)-naive HIV/AIDS patients from J...
journal_title:AIDS research and human retroviruses
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journal_title:AIDS research and human retroviruses
pub_type: 临床试验,杂志文章
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abstract::HIV-1 Vif, Vpr, and Vpu proteins have a profound effect on efficient viral replication and pathogenesis. This study describes the genotypic characterisation of vif , vpr and vpu from 20 South African HIV-1 subtype C primary isolates, and extensive analysis and comparison of known motifs. All HIV-1 subtype C Vif, Vpr a...
journal_title:AIDS research and human retroviruses
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journal_title:AIDS research and human retroviruses
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doi:10.1089/088922200309205
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journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
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journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1994.10.595
更新日期:1994-05-01 00:00:00
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journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
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journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1991.7.831
更新日期:1991-10-01 00:00:00
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journal_title:AIDS research and human retroviruses
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abstract::HIV/hepatitis C virus (HCV) patients have a 3-fold increased fracture incidence compared to uninfected patients. The impact of HCV therapy on bone health is unclear. We evaluated bone turnover markers (BTM) in well-controlled (HIV RNA <50 copies/ml) HIV/HCV-coinfected patients who received pegylated interferon-α and r...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章,随机对照试验
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更新日期:2016-04-01 00:00:00
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journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1988.4.343
更新日期:1988-10-01 00:00:00
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journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1992.8.1641
更新日期:1992-09-01 00:00:00
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journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1989.5.107
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.2013.0116
更新日期:2013-12-01 00:00:00
abstract::The use of ritonavir as a protease inhibitor boost is rare in sub-Saharan Africa because a heat-stable formula is not available. We report the results of an open-label pilot trial with unboosted atazanavir in combination with lamivudine and didanosine as first-line therapy conducted in Senegal. Treatment-naive HIV-1 i...
journal_title:AIDS research and human retroviruses
pub_type: 临床试验,杂志文章
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更新日期:2010-05-01 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::We investigated whether V3-binding assays might be useful to analyze human immunodeficiency virus type 1 (HIV-1) variants in different geographic regions. We showed that strong cross-reactivity between subtype-specific V3 peptides is almost inevitable in standard indirect enzyme-linked immunosorbent assays (EIA), impa...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1996.12.1279
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journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:
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journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.2007.0290
更新日期:2008-05-01 00:00:00
abstract::The efficacy and safety of recombinant human interferon gamma (rIFN-gamma) in the reduction of opportunistic disease in patients with advanced HIV-1 infection are assessed. A 12-month double-blind, placebo-controlled, multicenter, Phase III trial of rIFN-gamma in HIV-positive patients with CD4 < 100 x 10(9)/liter on s...
journal_title:AIDS research and human retroviruses
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1089/088922201750251981
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abstract::Jurkat cells stably expressing high levels of the HIV-1 Tat protein were generated after transfection with an Epstein-Barr virus-based episomal replicon and selection in hygromycin B. The Jurkat Tat transfectants exhibited a longer doubling time when compared to Jurkat cells or Jurkat cells transfected with the contro...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1995.11.443
更新日期:1995-04-01 00:00:00
abstract::The production and characterization of a cell line for quantitative HIV-1 Tat function and T cell activation assays is described. 1G5 is a clonal cell line derived from Jurkat T cells stably transfected with a luciferase gene driven by an HIV-1 long terminal repeat (HIV-LTR). The 1G5 clone was selected for low basal l...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/aid.1994.10.295
更新日期:1994-03-01 00:00:00
abstract::The chemokine receptor CXCR4 is the main coreceptor used by T-tropic X4 HIV-1 strains to infect its target T cells. It has been proven that the CXCR4 expression level in T cells is strongly up-regulated by interleukin (IL)-4, a Th2-type cytokine that is secreted preferentially in HIV-infected patients in a later stage...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/088922203771881239
更新日期:2003-12-01 00:00:00
abstract::Il28B single nucleotide polymorphisms were found to influence interferon λ expression, resulting in changes in hepatitis C virus (HCV)-RNA serum levels as well as the HIV-RNA set point prior to combined antiretroviral therapy (cART). To date, there is limited information on the influence of this polymorphism on surviv...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2011.0354
更新日期:2012-12-01 00:00:00
abstract::A workshop entitled "Regulatory T cells (T(reg)) and HIV/AIDS" was held in Cincinnati, OH, September 7-8, 2006. This workshop was the first completely dedicated to T(reg) in HIV infection, and gathered investigators working on different aspects of T(reg) biology, and on HIV pathogenesis. We report here the major topic...
journal_title:AIDS research and human retroviruses
pub_type:
doi:10.1089/aid.2006.0259
更新日期:2007-07-01 00:00:00
abstract::Maraviroc is a first-in-class chemokine coreceptor type-5 (CCR5) antagonist with demonstrated immunovirologic activity in treatment-experienced (TE) patients with CCR5 (R5)-tropic HIV-1; however, experience in regimens containing newer antiretroviral agents is limited. The primary objective of this 96-week open-label,...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章,多中心研究
doi:10.1089/AID.2012.0330
更新日期:2013-09-01 00:00:00
abstract::Abstract We assessed the viral envelope (V3-V5 region) sequence diversity from 13 HIV-1-infected Indian children from north India. All of the 13 children were found to be infected with subtype C viruses. One of the viral sequences exhibited usage of the CXCR4 coreceptor predicted by Web PSSM and Geno2pheno tools. Th...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2011.0206
更新日期:2012-05-01 00:00:00
abstract::CRF01_AE is one of the four dominant HIV-1 strains circulating in China. In this study, we performed genetic and phenotypic analyses using a total of 60 full-length envelope gene clones from 14 HIV-1-infected individuals in the Beijing area. Among the 60 sequences analyzed, 32 have a complete open reading frame (ORF),...
journal_title:AIDS research and human retroviruses
pub_type: 杂志文章
doi:10.1089/AID.2015.0377
更新日期:2016-10-01 00:00:00