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Plasma cells are enriched in localized prostate cancer in black men and are associated with improved outcomes [Discovery Cohort]

ABSTRACT: Black men die more often of prostate cancer (PC) yet, interestingly, may derive greater survival benefits from immunotherapy. Since no signatures of immune-responsiveness exist for PC, we explored race-based immune-profiles to identify vulnerabilities. Black men have increases in plasma cell infiltrate and associated augmented NK cell and IgG activity. These findings are associated with improved survival and nominate plasma cells as drivers of PC immune-responsiveness.

ORGANISM(S): Homo sapiens

PROVIDER: GSE153352 | GEO | 2020/11/18

REPOSITORIES: GEO

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Plasma cells are enriched in localized prostate cancer in black men and are associated with improved outcomes [Validation Cohort]

Project description:Black men die more often of prostate cancer (PC) yet, interestingly, may derive greater survival benefits from immunotherapy. Since no signatures of immune-responsiveness exist for PC, we explored race-based immune-profiles to identify vulnerabilities. Black men have increases in plasma cell infiltrate and associated augmented NK cell and IgG activity. These findings are associated with improved survival and nominate plasma cells as drivers of PC immune-responsiveness.

2020-11-18 | GSE157547 | GEO

Cooperation Between PRMT1 and PRMT6 Drives Lung Cancer Health Disparities Among Black/African American Men

Project description:SUMMARY Non-Hispanic Black/African American (Black/AA) men in the United States have disproportionally higher incidence and mortality rates of lung cancer compared to non-Hispanic White (NHW) men. Biological factors are believed to play critical roles in driving the disparities. Nevertheless, large-scale genomic studies fail to identify significant somatic differences in lung cancer driver genes contributing to the disparities. Elevated expression of protein arginine methyltransferases (PRMTs) correlating with poorer prognosis is observed in many cancer types. Here, we observed a higher PRMT6 expression in lung cancer of Black/AA men compared to NHW men. PRMT6 formed a heteromer complex with PRMT1 to catalyze arginine methylation of interleukin enhancer-binding factor 2 essential for cell proliferation. Disrupting PRMT1/PRMT6 heteromer complex by a competitive peptide reduced cell proliferation in non-small cell lung cancer cell lines and lung cancer patient-derived organoids. This work implicates that PRMT1/PRMT6 heteromer complex contributes to poorer lung cancer outcomes in Black/AA men vs. NHW men that could serve as a target to eliminate cancer health disparities.

2023-12-15 | MSV000093674 | MassIVE

Plasma cells are enriched in localized prostate cancer in black men and are associated with improved outcomes

Project description:Plasma cells are enriched in localized prostate cancer in black men and are associated with improved outcomes

| PRJNA661755 | ENA

Plasma cells are enriched in localized prostate cancer in black men and are associated with improved outcomes [Validation Cohort]

Project description:Plasma cells are enriched in localized prostate cancer in black men and are associated with improved outcomes [Validation Cohort]

| PRJNA661756 | ENA

Plasma cells are enriched in localized prostate cancer in black men and are associated with improved outcomes [Discovery Cohort]

Project description:Plasma cells are enriched in localized prostate cancer in black men and are associated with improved outcomes [Discovery Cohort]

| PRJNA644900 | ENA

Engaging Black Men in Colorectal Cancer Screening

Project description:To determine the unmet needs, attitudes, barriers and facilitators of African American (AA)/ Black men use of colorectal cancer screening and describe how community leaders such as barbers may act as Community Champions to educate and facilitate screening participation.

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Analysis of circulating microRNAs during early gestation in Japanese-Black cattle

Project description:We found four circulating miRNAs showing high levels in plasma of pregnant Japanese Black cows. Since these miRNAs are less affected by the measurement system due to hemolysis, it was suggested that they may be used as markers for early pregnancy diagnosis in cattle.

2021-06-26 | GSE178906 | GEO

MiRNA regulation of auto-anticoagulation in hibernating black bears: A Novel Translational Approach

Project description:Hibernating American black bears have significantly different clotting parameters than their active summer counterparts, affording them innate protection against venous thromboembolism (VTE) despite prolonged periods of immobility. Physiologic changes that occur during hibernation are thought to result from differential gene expression, rather than novel genes, and there is increasing evidence miRNAs may play an important role this regulation. We propose that significant differences exist in miRNA expression in the plasma of hibernating black bears compared to their active counter parts (summer), which lead to critical gene regulation responsible for auto-anticoagulation during hibernation. Methods: Blood was collected from 21 American black bears in the Northern Michigan Peninsula in summer 2017 and winter 2018 (11 active, 10 hibernating). Plasma was extracted Results: Fifteen miRNAs were differentially expressed in the plasma of hibernating black bears. Nine miRNAs were significantly downregulated (miR10b-3p, miR-136-3p, miR-181c-5p , miR-200a-3p, miR-200b-5p, miR-200c-3p, miR-320b, miR-320c and miR-320d) and six miRNAs were significantly upregulated (miR-15a-5p, miR-15b-3p, miR-15b-5p, miR-16-5p, miR-92a-3p, miR-150-5p) during hibernation. Twelve miRNAs had no identifiable targets, but miR-200a-3p, miR-200b-5p and miR-200c-3p found to be targets of SERPINC1, the gene responsible for the production of antithrombin (AT). Conclusions: Several miRNAs were differentially expressed in hibernating bears (12). Most importantly miR-200a-3p, miR-200b-5p and miR-200c-3p were all downregulated in hibernation and associated with increased expression of SERPINC1 and production of AT. AT is a powerful anticoagulant and this finding may explain the hibernating black bears ability to achieve auto-anticoagulation and protection from VTE.

2020-09-01 | GSE124398 | GEO

Revealing the immune perturbation of black phosphorus nanomaterials to macrophages by understanding the protein corona

Project description:The increasing number of biological applications for black phosphorus (BP) nanomaterials has precipitated considerable concern about their interactions with physiological systems. Here, we demonstrate the adsorption of plasma protein onto BP nanomaterials and the subsequent immune perturbation effect on macrophages. Using liquid chromatography tandem mass spectrometry, we discovered that BP nanosheets (BPNSs) were able to bind 23.3 percent of immune proteins from plasma, while BP quantum dots (BPQDs) bound 41.8 percent of immune proteins. In particular, the protein corona dramatically reshaped BP nanomaterial-corona complexes, influenced cellular uptake, activated the NF-κB pathway and even increased cytokine secretion by 2-5-fold. BP nanomaterials induced immunotoxicity and immune perturbation in macrophages in the presence of a plasma corona. These findings offer important insights into the development of safe and effective BP nanomaterial-based therapies.

2018-05-18 | PXD009645 | Pride

Difference in circulating microRNAs between grazing and grain-fed Japanese Black cattle

Project description:We aimed to elucidate the effects of feeding condition (indoor grain-feeding vs. grazing on pasture) on c-miRNAs in Japanese Black (JB) cattle (Wagyu). The cattle at 18 months old were divided into pasture feeding and conventional indoor grain feeding for 5 months. Microarray analysis of c-miRNAs from the plasma extracellular vesicles led to the detection of a total of 202 bovine miRNAs in the plasma, including 15 miRNAs that differed between the feeding conditions.

2017-02-09 | GSE81946 | GEO

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