LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 3 of total 3

Search options

  1. Article: Prostate Tissue Microbiome in Patients with Prostate Cancer: A Systematic Review.

    Ward Grados, Daniela F / Ergun, Onuralp / Miller, Carly D / Gaburak, Petr / Frimpong, Nana A / Shittu, Oluwatobi / Warlick, Christopher A

    Cancers

    2024  Volume 16, Issue 8

    Abstract: Some researchers have speculated that the prostatic microbiome is involved in the development of prostate cancer (PCa) but there is no consensus on certain microbiota in the prostatic tissue of PCa vs. healthy controls. This systematic review aims to ... ...

    Abstract Some researchers have speculated that the prostatic microbiome is involved in the development of prostate cancer (PCa) but there is no consensus on certain microbiota in the prostatic tissue of PCa vs. healthy controls. This systematic review aims to investigate and compare the microbiome of PCa and healthy tissue to determine the microbial association with the pathogenesis of PCa. We searched MEDLINE, Embase, and Scopus databases. Articles were screened by two independent and blinded reviewers. Literature that compared the prostatic tissue microbiome of patients with PCa with benign controls was included. We found that PCa may be associated with increased
    Language English
    Publishing date 2024-04-18
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2527080-1
    ISSN 2072-6694
    ISSN 2072-6694
    DOI 10.3390/cancers16081549
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Divergent immune microenvironments in two tumor nodules from a patient with mismatch repair-deficient prostate cancer.

    Bergom, Hannah E / Sena, Laura A / Day, Abderrahman / Miller, Benjamin / Miller, Carly D / Lozada, John R / Zorko, Nicholas / Wang, Jinhua / Shenderov, Eugene / Lobo, Francisco Pereira / Caramella-Pereira, Fernanda / Marchionni, Luigi / Drake, Charles G / Lotan, Tamara / De Marzo, Angelo M / Hwang, Justin / Antonarakis, Emmanuel S

    NPJ genomic medicine

    2024  Volume 9, Issue 1, Page(s) 7

    Abstract: Patients with prostate cancer (PC) generally do not respond favorably to immune checkpoint inhibitors, which may be due to a low abundance of tumor-infiltrating lymphocytes even when mutational load is high. Here, we identified a patient who presented ... ...

    Abstract Patients with prostate cancer (PC) generally do not respond favorably to immune checkpoint inhibitors, which may be due to a low abundance of tumor-infiltrating lymphocytes even when mutational load is high. Here, we identified a patient who presented with high-grade primary prostate cancer with two adjacent tumor nodules. While both nodules were mismatch repair-deficient (MMRd), exhibited pathogenic MSH2 and MSH6 alterations, had a high tumor mutational burden (TMB), and demonstrated high microsatellite instability (MSI), they had markedly distinct immune phenotypes. The first displayed a dense infiltrate of lymphocytes ("hot nodule"), while the second displayed significantly fewer infiltrating lymphocytes ("cold nodule"). Whole-exome DNA analysis found that both nodules shared many identical mutations, indicating that they were derived from a single clone. However, the cold nodule appeared to be sub-clonal relative to the hot nodule, suggesting divergent evolution of the cold nodule from the hot nodule. Whole-transcriptome RNA analysis found that the cold nodule demonstrated lower expression of genes related to antigen presentation (HLA) and, paradoxically, classical tumor immune tolerance markers such as PD-L1 (CD274) and CTLA-4. Immune cell deconvolution suggested that the hot nodule was enriched not only in CD8+ and CD4 + T lymphocytes, but also in M1 macrophages, activated NK cells, and γδ T cells compared to the cold nodule. This case highlights that MMRd/TMB-high PC can evolve to minimize an anti-tumor immune response, and nominates downregulation of antigen presentation machinery (HLA loss) as a potential mechanism of adaptive immune evasion in PC.
    Language English
    Publishing date 2024-01-22
    Publishing country England
    Document type Journal Article
    ZDB-ID 2813848-X
    ISSN 2056-7944 ; 2056-7944
    ISSN (online) 2056-7944
    ISSN 2056-7944
    DOI 10.1038/s41525-024-00392-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Pan-Cancer Interrogation of B7-H3 (CD276) as an Actionable Therapeutic Target across Human Malignancies.

    Miller, Carly D / Lozada, John R / Zorko, Nicholas A / Elliott, Andrew / Makovec, Allison / Radovich, Milan / Heath, Elisabeth I / Agarwal, Neeraj / McKay, Rana R / Garje, Rohan / Bastos, Bruno R / Hoon, Dave S / Orme, Jacob J / Sartor, Oliver / Vanderwalde, Ari / Nabhan, Chadi / Sledge, George W / Shenderov, Eugene / Dehm, Scott M /
    Lou, Emil / Miller, Jeffrey S / Hwang, Justin H / Antonarakis, Emmanuel S

    Cancer research communications

    2024  

    Abstract: B7-H3 (CD276) is a transmembrane glycoprotein of the B7 immune checkpoint superfamily that has emerged as a promising therapeutic target. To better understand the applicability of B7-H3-directed therapies, we analyzed 156,791 samples comprising 50 cancer ...

    Abstract B7-H3 (CD276) is a transmembrane glycoprotein of the B7 immune checkpoint superfamily that has emerged as a promising therapeutic target. To better understand the applicability of B7-H3-directed therapies, we analyzed 156,791 samples comprising 50 cancer types to interrogate the clinical, genomic, transcriptomic, and immunological correlates of B7-H3 mRNA expression. DNA (592-gene/whole-exome) and RNA (whole-transcriptome) sequencing was performed from samples submitted to Caris Life Sciences (Phoenix, AZ). B7-H3 high versus low expression was based on top and bottom quartiles for each cancer type. Patients' overall survival was determined from insurance claims data. Pathway analysis was performed using Gene Set Enrichment Analyses (GSEA). Immune cell fractions were inferred using quanTIseq. B7-H3 is expressed across several human malignancies including prostate, pancreatic, ovarian, and lung cancers. High B7-H3 expression is associated with differences in overall survival, possibly indicating a prognostic role of B7-H3 for some cancers. When examining molecular features across all cancer types, we did not identify recurrent associations between B7-H3 expression and genetic alterations in TP53, RB1, and KRAS. However, we find consistent enrichment of EMT, Wnt, TGF-beta, and Notch signaling pathways. Additionally, tumors with high B7-H3 expression are associated with greater proportions of M1 macrophages, but lower fractions of CD8+ T cells. We have begun to define the genomic, transcriptomic, clinical, and immunological features associated with B7-H3 expression in 50 cancer types. We report novel clinical and molecular features of B7-H3-high tumors which may inform how current B7-H3 therapeutics should be deployed and prioritized.
    Language English
    Publishing date 2024-05-06
    Publishing country United States
    Document type Journal Article
    ISSN 2767-9764
    ISSN (online) 2767-9764
    DOI 10.1158/2767-9764.CRC-23-0546
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top