• Croatian medical journal · Dec 2023

    Benign and malignant prostate neoplasms show different spatial organization of collagen.

    • Taras Zadvornyi, Nataliia Lukianova, Oleksandr Mushii, Anna Pavlova, Olena Voronina, and Vasyl Chekhun.
    • Taras Zadvornyi, R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology, National Academy of Sciences of Ukraine, Vasylkivska str. 45, Kyiv-03022, Ukraine, tito132007@ukr.net.
    • Croat. Med. J. 2023 Dec 31; 64 (6): 413420413-420.

    AimTo compare the indicators of the spatial organization of collagen and its regulating factors between benign and malignant prostate neoplasms.MethodsThe study involved tumor tissue samples from 40 patients with stage II-III prostate cancer (PCa) and 20 patients with benign prostatic hyperplasia (BPH). The localization of collagen was determined with a Masson trichrome stain. To establish quantitative indicators of the spatial organization of collagen, morphometric studies were carried out with the CurveAlign and ImageJ programs.ResultsPCa tissue had two times lower collagen density (P<0.0001) and 1.3 times lower levels of collagen alignment (P=0.018) compared with BPH tissue. In PCa tissue, collagen fibers were shorter (by 24.2%; P<0.001) and thicker (by 15.5%; P<0.001). PCa tissue samples showed significantly higher levels of metalloproteinase (MMP)-2 (by 2.4 times; P=0.001), MMP-8 (by 2.3 times; P=0.007), and MMP-13 (by 1.9 times; P=0.004).ConclusionsCollagen matrix spatial organization features, as well as its regulatory factors, could be potential biomarkers of malignant prostate neoplasms.

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