GEO DataSets

(Submitter supplied) The mucosa that lines the gastrointestinal (GI) tracts is an important portal of entry for pathogens and provides the frontline of immune defense against HIV infection. Epithelial barrier dysfunction during HIV infection has largely been attributed to the rapid and severe depletion of CD4 T cells in the gastrointestinal (GI) tract. In this study, the poential role of small non-coding microRNA (miRNA) to contribute to epithelial dysfunction was investigated in the non-human primate SIV model and microarrays were utilized to determine changes in mucosal gene expression (non-miRNA) that could be correlated to miRNA modulatiolns. more...

Organism:

Macaca mulatta

Type:

Expression profiling by array

Platform:

GPL3535

6 Samples

Download data: CEL

(Submitter supplied) This study describes differential miRNA expression in small intestinal lamina propria leukocyte samples longitudinally during the course of SIV infection of rhesus macaques. Notably, the T-cell activation associated miR-15b, miR-142-3p, miR-142-5p and miR-150 expression was significantly downregulated at 90 and 180DPI. Further, reporter and overexpression assays validated IRAK1 as a direct miR-150 target. more...

Organism:

Homo sapiens; Macaca mulatta

Type:

Expression profiling by RT-PCR

Platform:

GPL17797

25 Samples

Download data: TXT

(Submitter supplied) The study describes miRNA expression in intact duodenum following chronic delta 9 tetrahydrocannabinol (Δ9-THC) administration to SIV-infected rhesus macaques. Chronic Δ9-THC administration to uninfected macaques significantly and positively modulated intestinal miRNA expression by increasing the total number of differentially expressed miRNAs from 14 to 60 days post infection (DPI). At 60DPI, ~28% of miRNAs showed decreased expression in VEH/SIV compared to none in the THC/SIV group. more...

Organism:

Macaca mulatta; Homo sapiens

Type:

Expression profiling by RT-PCR

Platform:

GPL17837

44 Samples

Download data: XLS

(Submitter supplied) We used the ileal loop model to assess the effects of enteric bacteria organisms on host gene expression in intestinal tissue independent of and following early SIV infection. SIV infection in the gut causes rapid and severe immune dysfunction and damage to the intestinal structure, this may alter the intimate interaction with lumenal organisms. This study was performed to determine whether early SIV infection, prior to the depletion of CD4+ T cells, can alter interaction of the host with pathogenic Salmonella serovar Typhimurium (ST) or commensal Lactobacillus plantarum (LP), and to further understand the earliest changes to the intestinal mucosa following SIV infection. more...

Organism:

Macaca mulatta

Type:

Expression profiling by array

Platform:

GPL3535

28 Samples

Download data: CEL

(Submitter supplied) We profiled and characterized mRNA expression exclusively in colonic epithelium (CE) of 4 chronically SIV-infected and 4 control rhesus macaques (RMs). Further analysis identified significant dowregulation of genes Genes associated with ion transport, epithelial barrier integrity/function, protection against oxidative injury, double stranded DNA damage repair and autophagy. Similarly, mRNA expression of genes associated with interferon response, anti-microbial defense, apoptosis, oxidative DNA damage, endoplasmic reticulum stress and inflammasome signaling were markedly upregulated.

Organism:

Macaca mulatta

Type:

Expression profiling by array

Platform:

GPL16027

8 Samples

Download data: TXT

(Submitter supplied) The study describes miRNA expression in colonic epithelium of chronic SIV-infected rhesus macaques. We profiled and characterized miRNA/mRNA expression exclusively in colonic epithelium (CE) of 12 chronically SIV-infected and 8 control rhesus macaques (RMs). About 46 miRNAs were differentially expressed (DE) (20-up and 26-down) in CE during chronic SIV infection. Using TargetScan, we bioinformatically crossed the predicted targets of DE miRNAs to genome-wide transcriptomic data and identified several critical miRNA-mRNA pairings that suggested miRNA-mediated regulation of aberrant epithelial gene expression in CE. more...

Organism:

Macaca mulatta; Homo sapiens

Type:

Expression profiling by RT-PCR

Platform:

GPL17837

20 Samples

Download data: TXT

(Submitter supplied) This study describes differential miRNA expression in intact colon tissue during acute SIV infection of rhesus macaques. Nine miRNAs were found to be significantly affected by infection, with 5 down-regulated and 4 up-regulated miRNAs. The expression of one upregulated miRNA was further characterized and found to be significantly elevated specifically in response to SIV replication and not immune activation/inflammation accompanying SIV infection.

Organism:

Macaca mulatta; Homo sapiens

Type:

Expression profiling by RT-PCR

Platform:

GPL17797

15 Samples

Download data: TXT

(Submitter supplied) The mucosa that lines the respiratory and gastrointestinal (GI) tracts is an important portal of entry for pathogens and provides the frontline of immune defense against HIV infection. Using the simian immunodeficiency virus (SIV) rhesus macaque model, we have performed a comparative analysis of host gene expression in the lung and GI mucosa in response to SIV infection and antiretroviral therapy. Microarrays were used to characterize changes in gene expression in the colonic, jejunal, and pulmonary (lung) mucosa that occur during chronic SIV infection in the presence or absence of antiretroviral therapy.

Organism:

Macaca mulatta

Type:

Expression profiling by array

Dataset:

GDS4993

Platform:

GPL3535

32 Samples

Download data: CEL

Analysis of colon, jejunum and lung from therapy-naïve, SIV-infected males. Gut and lung mucosa are important entry portals for pathogens and provide innate immune defense against infection. Results provide insight into molecular mechanisms underlying mucosal immune response during SIV infection.

Organism:

Macaca mulatta

Type:

Expression profiling by array, count, 2 infection, 3 tissue sets

Platform:

GPL3535

Series:

GSE51615

23 Samples

Download data: CEL

(Submitter supplied) We used microarrays to detail the global gene expression changes in the ileum of SIV-infected and uninfected macaques following administration of L. plantarum.

Organism:

Macaca mulatta

Type:

Expression profiling by array

Platform:

GPL3535

12 Samples

Download data: CEL

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Macaca mulatta; Homo sapiens

Type:

Expression profiling by array; Expression profiling by RT-PCR

Platforms:

GPL17837 GPL16027

39 Samples

Download data: TXT

(Submitter supplied) The study describes miRNA expression in colon tissue following delta 9 tetrahydrocannabinol (Δ9-THC) administration to chronically SIV-infected rhesus macaques. To identify the underlying molecular mechanisms underlying its anti-inflammatory effects, we simultaneously profiled miRNA and mRNA expression in colon of chronically simian immunodeficiency virus (SIV)-infected rhesus macaques (RMs) administered either vehicle (VEH/SIV; n=9) or Δ9- tetrahydrocannabinol (THC; THC/SIV; n=8). more...

Organism:

Homo sapiens; Macaca mulatta

Type:

Expression profiling by RT-PCR

Platform:

GPL17837

23 Samples

Download data: XLSX

(Submitter supplied) We profiled and characterized mRNA expression in colon of 12 chronically SIV-infected rhesus macaques (RMs) receiving vehicle (n=7) or delta-9-tetrahydrocannabinol (THC) and 4 uninfected control macaques. Further analysis identified significant downregulation of genes associated with ion transport, epithelial barrier integrity/function, protection against oxidative injury, double stranded DNA damage repair and autophagy. more...

Organism:

Macaca mulatta

Type:

Expression profiling by array

Platform:

GPL16027

16 Samples

Download data: TXT

(Submitter supplied) Pathogenic HIV/SIV infection of humans and rhesus macaques (RMs) induces persistently high production of type-I interferon (IFN-I) which is thought to contribute to disease progression. To elucidate the specific role of IFN in SIV pathogenesis, 12 RMs were treated prior to i.v. SIVmac239 infection with a high or a low dose of an antibody (AGS-009) that neutralizes most IFN subtypes, and compared with six mock-infused, SIV-infected controls. more...

Organism:

Macaca mulatta; Homo sapiens

Type:

Expression profiling by array

Platform:

GPL10558

107 Samples

Download data: TXT

(Submitter supplied) This study describes differential miRNA expression in intact colon tissue during chronic SIV infection of rhesus macaques. Ten miRNAs were found to be significantly affected by infection, with 7 down-regulated and 3 up-regulated miRNAs. The expression of one upregulated miRNA was further characterized and found to be upregulated in both colonic epithelium and lamain propria cells. Further, its expression positively correlated with colonic inflammation scores and viral loads. more...

Organism:

Homo sapiens; Macaca mulatta

Type:

Expression profiling by RT-PCR

Platform:

GPL17797

16 Samples

Download data: TXT

(Submitter supplied) Here, we describe new information on changes in the lncRNA landscape and their potential role in the pathogenesis of HIV/SIV induced intestinal epithelial dysfunction. Our study provides relevant novel insights on the protective role of the natural anti-sense lncRNA MMP25-AS1 in the colonic epithelium (CE) and its modulation by long-term controlled delta-9-tetrahydrocannabinol (THC) administration during chronic HIV/SIV infection. more...

Organism:

Macaca mulatta; Homo sapiens

Type:

Expression profiling by array; Non-coding RNA profiling by array

Platform:

GPL21827

17 Samples

Download data: TXT

(Submitter supplied) We performed RNAseq on whole ileum extracts to investigate the underlying gene expression changes associated with MSC administration during chronic SIV infection.

Organism:

Macaca mulatta

Type:

Expression profiling by high throughput sequencing

Platform:

GPL23949

15 Samples

Download data: TAB

(Submitter supplied) The gastrointestinal tract is a major site of early HIV-1 replication and death of CD4+ T cells. As HIV-1 replicates in the gut, the protective epithelial barrier gets disrupted, leading to the entry of bacteria into the underlying tissue and the bloodstream, leading to inflammation and clinical complications even in HIV-1-infected patients taking antiviral drugs. Counteracting these pathogenic processes may require in-depth understanding of the molecular pathways that HIV-1 and microbes utilize to infect, functionally alter and/or kill CD4+ T cells. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL16686

24 Samples

Download data: CEL

(Submitter supplied) Resident human lamina propria immune cells serve as powerful effectors in host defense. Molecular events associated with the initiation of an intestinal inflammatory response in these cells are largely unknown. Here, we aimed to characterize phenotypic and functional changes induced in these cells at the onset of intestinal inflammation using a human intestinal organ culture model. In this model, healthy human colonic mucosa was depleted of epithelial cells by EDTA treatment. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL10558

8 Samples

Download data: TXT

(Submitter supplied) In this work we have employed a single cell sequencing approach using 10x Genomics scRNAseq to study Astroviru infection of of ileum organoids

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18573

19 Samples

Download data: H5