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Rapid Acceleration of Diagnostics - Underserved Populations (RADx-UP): A Dynamic COVID-19 Community-Engaged Testing Strategy in Alabama (COVID COMET AL)

ABSTRACT: Rapid Acceleration of Diagnostics - Underserved Populations (RADx-UP): A Dynamic COVID-19 Community-Engaged Testing Strategy in Alabama (COVID COMET AL)

PROVIDER: PRJNA824194 | ENA |

REPOSITORIES: ENA

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Rapid Acceleration of Diagnostics - Underserved Populations (RADx-UP): A Dynamic COVID-19 Community-Engaged Testing Strategy in Alabama (COVID COMET AL)

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Molecular Disparities in Colorectal Cancers of White Americans, Alabama African Americans, and Oklahoma American Indians

Project description:In the US, the majority of cancer samples analyzed are from white people, leading to biases in racial and ethnic treatment outcomes. Colorectal cancer (CRC) incidence and mortality rates are high in Alabama African Americans (AAs) and Oklahoma American Indians (AIs). We hypothesized that differences between racial groups may partially explain these disparities. Thus, we compared transcriptomic profiles of CRCs of Alabama AAs, Oklahoma AIs, and white people from both states. Compared to CRCs of white people, CRCs of AAs showed (a) higher expression of cytokines and vesicle trafficking toward modulated antitumor-immune activity, and (b) lower expression of the ID1/BMP/SMAD axis, IL22RA1, APOBEC3, and Mucins; and AIs had (c) higher expression of PTGS2/COX2 (an NSAID target/pro-oncogenic inflammation) and splicing regulators, and (d) lower tumor suppressor activities (e.g., TOB2, PCGF2, BAP1). Therefore, targeting strategies designed for white CRC patients may be less effective for AAs/AIs. These findings illustrate needs to develop optimized interventions to overcome racial CRC disparities.

2023-08-23 | GSE237684 | GEO

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