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The gene expression profile of milk somatic cells of small ruminant lentivirus-seropositive and -seronegative dairy goats (Capra hircus) during their first lactation.

ABSTRACT: The gene expression profile of milk somatic cells of small ruminant lentivirus-seropositive and -seronegative dairy goats (Capra hircus) during their first lactation.

PROVIDER: PRJNA1273105 | ENA |

REPOSITORIES: ENA

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The gene expression profile of milk somatic cells of small ruminant lentivirus-seropositive and -seronegative dairy goats (Capra hircus) during their first lactation.

Project description:Caprine arthritis and encephalitis (CAE), caused by small ruminant lentivirus (SRLV), is a key disease of goats, with chronic inflammation of joints and brain symptoms, leading to losses in milk production and animal trade. In this study we analyzed gene expressions in milk somatic cells (MSCs) of seropositive (SRLV-SP) and seronegative (SRLV-SN) goats to identify transcriptomic changes using a non-invasive sampling method. Materials and Methods: The study was conducted on goats of two Polish breeds (Polish Improved White and Polish Improved Fawn) in their first lactation, kept at the Institute of Genetics and Animal Biotechnology Polish Academy of Sciences. MSCs were isolated from milk and gene expression was analyzed using Goat Gene Expression microarray. The results were verified by RT-qPCR for five genes (DUSP26, PRLR, SCARA3, APBB2, OR4F4). Statistical analysis was performed in Gene Spring 12 software. Results: Microarrays showed reduced expression of DUSP26, PRLR, SCARA3, APBB2 and OR4F4 genes in SRLV-SP goats. RT-qPCR confirmed changes for DUSP26, SCARA3 and APBB2. Functional analysis indicated associations with immune processes and HIV-like pathways. Discussion: The results suggest that SRLV induces transcriptomic perturbations, especially in immunity-related genes. MSCs are an effective model for non-invasive studies, and further studies may support strategies for combating CAE.

2025-07-03 | GSE299223 | GEO

Gene Expression Profile in Peripheral Blood Nuclear Cells of Small Ruminant Lentivirus-Seropositive and Seronegative Dairy Goats in Their First Lactation

Project description:Gene Expression Profile in Peripheral Blood Nuclear Cells of Small Ruminant Lentivirus-Seropositive and Seronegative Dairy Goats in Their First Lactation

| PRJNA496498 | ENA

Gene Expression Profile in Peripheral Blood Nuclear Cells of Small Ruminant Lentivirus-Seropositive and Seronegative Dairy Goats in Their First Lactation.

Project description:The immune response to a viral antigen causes inflammatory cell infiltration to the tissue, which creates a suitable environment for the replication of the virus in macrophages, and the recruitment of more monocytes to the site of infection, or latently infected monocytes. The aim of the study was to analyze the transcriptomic profile of peripheral blood nuclear cells isolated from SRLV-seropositive and SRLV-negative goats at the peak of their first lactation. SRLV-seropositive goats were probably infected via colostrum. Custom transcriptomic microarrays for goats were designed and developed, namely the Capra hircus gene expression array, which features ~50,000 unique transcripts per microarray. Only four genes were differentially expressed, with up-regulated expression of the GIMAP2, SSC5D and SETX genes, and down-regulated expression of the GPR37 gene in SRLV-seropositive vs. SRLV-seronegative goats. However, in an RT-qPCR analysis, the result for the SETX gene was not confirmed. The differences in the expressions of the studied genes indicate an active inflammatory process in the SRLV-seropositive goats at the early stage of infection.

| S-EPMC8066113 | biostudies-literature

Gene Expression Profile in Peripheral Blood Nuclear Cells of Small Ruminant Lentivirus-Seropositive and Seronegative Dairy Goats in Their First Lactation

Project description:The study investigated differences in gene expression profiles of peripheral blood nuclear cells sampled from healthy and infected with SRLV goats, belonging to two breeds. Due to the nature of the lentiviral infection we hypothesized that the virus could induce genes expression regulation. We put forward the hypothesis that if gene expression differences exist, they should be revealed in studies conducted on custom-made Capra hircus Gene Expression Array. The results revealed that SRLV infection results in regulation of several genes in goat’s peripheral blood nuclear cells.

2021-03-24 | GSE121259 | GEO

Immune transcriptomes of highly exposed SARS-CoV-2 asymptomatic seropositive versus seronegative individuals from the Ischgl community

Project description:SARS-CoV-2 infection ranges from asymptomatic to severe with lingering symptomatology in some. This prompted investigation of whether or not asymptomatic disease results in measurable immune activation post-infection. Immune activation following asymptomatic SARS-CoV-2 infection was characterized through a comparative investigation of the immune cell transcriptomes from 43 asymptomatic seropositive and 52 highly exposed seronegative individuals from the same community four to six weeks following a superspreading event. Few of the 95 individuals had underlying health issues. One seropositive individual reported Cystic Fibrosis and one individual reported Incontinentia pigmenti. No evidence of immune activation was found in asymptomatic seropositive individuals with the exception of the Cystic Fibrosis patient. There were no statistically significant differences in immune transcriptomes between asymptomatic seropositive and highly exposed seronegative individuals. Four positive controls, mildly symptomatic seropositive individuals whose blood was examined three weeks following infection, showed immune activation. Negative controls were four seronegative individuals from neighboring communities without COVID19. All individuals remained in their usual state of health through a five-month follow-up after sample collection. In summary, whole blood transcriptomes identified individual immune profiles within a community population and showed that asymptomatic infection within a super-spreading event was not associated with enduring immunological activation.

2021-05-01 | GSE162562 | GEO

Transcription profiling of human peripheral blood mononuclear cells infected with HIV-1

Project description:We used Affymetix HG Focus GeneChip to measure the expression levels of HIV seronegative and seropositive individuals in human PBMCs in vivo. GSM39104 -GSM39115 are HIV seronegative samples; GSM39116-GSM39137 are HIV seropositive but drug naive samples; GSM39138-GSM39147 are HIV seropositive samples used to test serostatus biomarker; GSM39148-GSM39170 are HIV seropositive individuals whose CD4 cells decrease over time; GSM39171-GSM39187 are HIV seropositive individuals whose CD4 cells increase over time; GSM39188-GSM39190 are HIV seropositive samples used to test CD4 cell increase/decrease over time.

2007-08-25 | E-GEOD-2171 | biostudies-arrayexpress

HIV-1 infection in human PBMCs in vivo

2005-01-22 | GSE2171 | GEO

ruminant

Project description:ruminant Metagenomic assembly -RGMC

| PRJNA1190869 | ENA

A Comparison of Oxidative Stress Biomarkers in the Serum of Healthy Polish Dairy Goats with Those Naturally Infected with Small Ruminant Lentivirus in the Course of Lactation.

Project description:The present study examines the effects of natural infection by small ruminant lentivirus (SRLV) in the two most common goat breeds in Poland, i.e., Polish white improved and polish fawn improved. It focuses on biomarkers of oxidative stress, oxidatively modified proteins and antioxidant defenses, ceruloplasmin level as an acute phase protein, and the activities of antioxidant enzymes in the goat serum. It was conducted on 24 goats divided into two equal groups: one SRLV-seropositive (SRLV-SP) and another SRLV-seronegative (SRLV-SN). Both groups were identical in terms of breed and parity. Despite infection, the SRLV-SP goats demonstrated no symptoms of caprine arthritis-encephalitis. In addition, the SRLV-SP goats did not reveal pronounced dysfunctions in oxidative stress biomarkers in the serum compared to the SRLV-SN animals. However, both groups demonstrated elevated levels of the aldehydic and ketonic derivatives of oxidatively modified proteins during the lactation period. In addition, both groups retained a high total antioxidant capacity in serum despite the decrease of enzyme antioxidant defenses throughout the 200-day lactation period.

| S-EPMC8300365 | biostudies-literature

ruminant genome project

Project description:Ruminant Genome Project

| PRJNA438286 | ENA