Novel protein and immune response markers of human serous tubal intraepithelial carcinoma of the ovary.

Novel protein and immune response markers of human serous tubal intraepithelial carcinoma of the ovary. Cancer Biomark. 2019 Oct 18;: Authors: Gutkin DW, Shurin MR, El Azher MA, Shurin GV, Velikokhatnaya L, Prosser D, Shin N, Modugno F, Stemmer P, Elishaev E, Lokshin A Abstract Ovarian cancer is the leading cause of death among gynecologic diseases in the USA and Europe. High-grade serous carcinoma (HGSC) of the ovary, the most aggressive type of ovarian cancer, is typically diagnosed at advanced stages when the 5-year survival is dismal. Since the cure rate for stage I HGSC is high, early detection of localized initial disease may improve patient outcomes. Serous tubal intraepithelial carcinoma (STIC) is considered to be a precursor lesion of HGSC. Discovery of biomarkers associated with STIC could aid in the development of an HGSC screening algorithm. Using immunohistochemical staining, we have demonstrated overexpression of UCHL1, ADAMTS13, and GAPDH in patients' STIC lesions, but not in cancer-free fallopian tubes. We additionally demonstrated a marked increase of T cells in perineoplastic stroma surrounding STIC lesions (largely CD4 + cells), but not in normal fallopian tubes and HGSC. FOXP3 + T regulatory cells are absent in STIC lesions but are present in HGSC. These observations indicate the microenvironment surrounding a STIC lesion may be immune promoting in contrast to the immune suppressive microenvironment of invasive ca...
Source: Cancer Biomarkers - Category: Cancer & Oncology Tags: Cancer Biomark Source Type: research