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  1. Article ; Online: The mRNA Distribution of Cancer Stem Cell Marker CD90/Thy-1 Is Comparable in Hepatocellular Carcinoma of Eastern and Western Populations.

    Luong, An B / Do, Huy Q / Tarchi, Paola / Bonazza, Deborah / Bottin, Cristina / Cabral, Loraine Kay D / Tran, Long D C / Doan, Thao P T / Crocè, Lory S / Pham, Hoa L T / Tiribelli, Claudio / Sukowati, Caecilia H C

    Cells

    2020  Volume 9, Issue 12

    Abstract: Epidemiology of hepatocellular carcinoma (HCC) showed a correlation between incidence and geographical-relevant risk factors. This study aims to compare the distributions of cancer stem cells (CSC) in two distant populations in Asia and Europe. We ... ...

    Abstract Epidemiology of hepatocellular carcinoma (HCC) showed a correlation between incidence and geographical-relevant risk factors. This study aims to compare the distributions of cancer stem cells (CSC) in two distant populations in Asia and Europe. We analyzed 52 and 43 selected HCC patients undergoing hepatectomy in Ho Chi Minh City (Vietnam) and Trieste (Italy). Each patient sample consisted of HCC, peri-HCC, and non-tumoral (distal) tissue. Demographic data were recorded together with clinical findings. The protocol for the collection of tissue samples and RNA was standardized in both laboratories and gene expression analysis was performed in a single laboratory with identical PCR conditions. Baseline data showed comparable laboratory findings between the two cohorts. mRNA distribution showed a comparable pattern of all CSC markers analyzed with the expression of CD90 progressively increasing from distal and peri-HCC to be highest in HCC (
    MeSH term(s) Aged ; Biomarkers, Tumor/genetics ; Biomarkers, Tumor/metabolism ; Carcinoma, Hepatocellular/genetics ; Carcinoma, Hepatocellular/virology ; Cohort Studies ; Female ; Gene Expression Regulation, Neoplastic ; Hepatitis B/complications ; Hepatitis B/genetics ; Humans ; Liver Neoplasms/genetics ; Liver Neoplasms/virology ; Male ; Middle Aged ; Neoplastic Stem Cells/metabolism ; Neoplastic Stem Cells/pathology ; Prognosis ; RNA, Messenger/genetics ; RNA, Messenger/metabolism ; Thy-1 Antigens/genetics ; Thy-1 Antigens/metabolism
    Chemical Substances Biomarkers, Tumor ; RNA, Messenger ; Thy-1 Antigens
    Language English
    Publishing date 2020-12-12
    Publishing country Switzerland
    Document type Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2661518-6
    ISSN 2073-4409 ; 2073-4409
    ISSN (online) 2073-4409
    ISSN 2073-4409
    DOI 10.3390/cells9122672
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Differential capacity of CD90+ cells in autophagy activation following chemotherapy in hepatocellular carcinoma.

    Do, Huy Q / Luong, An B / Bonazza, Deborah / Bottin, Cristina / Doan, Thao Pt / Tran, Long Dc / Truong, Nhung H / Tell, Gianluca / Pham, Hoa Lt / Tiribelli, Claudio / Sukowati, Caecilia Hc

    Annals of hepatology

    2020  Volume 19, Issue 6, Page(s) 645–652

    Abstract: Introduction and objectives: Analysis of cancer biomarkers is an important tool in developing targeted-therapy and in modulating chemoresistance. Here, we analyze the relevance of CD90, a marker of cancer stem cells (CSC) in hepatocellular carcinoma ( ... ...

    Abstract Introduction and objectives: Analysis of cancer biomarkers is an important tool in developing targeted-therapy and in modulating chemoresistance. Here, we analyze the relevance of CD90, a marker of cancer stem cells (CSC) in hepatocellular carcinoma (HCC) and its correlation with autophagy.
    Materials and methods: For in vivo study, 86 specimens were collected from 43 patients undergoing liver resections. In each patient, HCC nodule (HCC) and surrounding non-tumor (SNT) were collected. For in vitro study, HCC cells JHH6 subpopulations expressing CD90+ and CD90- were isolated using magnetic-sorter and confirmed by flow-cytometry. Upon doxorubicin treatment, autophagy turn-over was analyzed by RTqPCR for mRNA expression, Western blot for protein expression, and autophagosome staining for autophagy-flux. Cytotoxicity test was performed by MTT assay. Gene and protein analysis were performed in clinical samples together with immunohistostaining.
    Results: CD90 mRNA expression was higher in HCC than in SNT for 8-fold (p < 0.001). LC3-II protein was up-regulated in the HCC in comparison with the SNT (p < 0.05). In vitro model showed that CD90+ and CD90- cells had diverse expressions of autophagy-related genes. Upon doxorubicin treatment, autophagy was activated in both cells by increasing LC3-II protein expression, autophagic vacuoles, and dysregulation of autophagy-related mRNAs. A differential autophagic capacity was noticed between two subpopulations and it was correlated with cellular toxicity assay.
    Conclusions: We demonstrated the relevance of differential autophagy capacity of CD90+ cells in HCC. Autophagy was involved in cancer-defense mechanism against doxorubicin. Cancer promoting function of autophagy in CD90+ cells was also related to cancer environment.
    MeSH term(s) Antibiotics, Antineoplastic/therapeutic use ; Autophagy/drug effects ; Carcinoma, Hepatocellular/drug therapy ; Carcinoma, Hepatocellular/metabolism ; Carcinoma, Hepatocellular/pathology ; Cell Culture Techniques ; Cell Line, Tumor ; Doxorubicin/therapeutic use ; Female ; Humans ; Liver Neoplasms/drug therapy ; Liver Neoplasms/metabolism ; Liver Neoplasms/pathology ; Male ; Microtubule-Associated Proteins/metabolism ; Middle Aged ; Thy-1 Antigens/metabolism
    Chemical Substances Antibiotics, Antineoplastic ; MAP1LC3B protein, human ; Microtubule-Associated Proteins ; Thy-1 Antigens ; Doxorubicin (80168379AG)
    Language English
    Publishing date 2020-08-01
    Publishing country Mexico
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2188733-0
    ISSN 1665-2681
    ISSN 1665-2681
    DOI 10.1016/j.aohep.2020.07.007
    Database MEDical Literature Analysis and Retrieval System OnLINE

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