Наукові видання (НН МІ)
Permanent URI for this collectionhttps://devessuir.sumdu.edu.ua/handle/123456789/132
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Item The features of p53 and Ki-67 expression during Gleason's grade increase in prostate cancer(Springer, 2019) Линдін, Микола Сергійович; Лындин, Николай Сергеевич; Lyndin, Mykola Serhiiovych; Піддубний, Артем Михайлович; Поддубный, Артем Михайлович; Piddubnyi, Artem Mykhailovych; Сікора, Владислав Володимирович; Сикора, Владислав Владимирович; Sikora, Vladyslav Volodymyrovych; Романюк, Оксана Костянтинівна; Романюк, Оксана Константиновна; Romaniuk, Oksana Kostiantynivna; Kravtsova, Olha Ivanivna; Романюк, Анатолій Миколайович; Романюк, Анатолий Николаевич; Romaniuk, Anatolii Mykolaiovych; Кравцова, Ольга Іванівна; Кравцова, Ольга ИвановнаBackground & Objectives: Prostate cancer is the most common malignant tumour of the male reproductive organs. Its course depends on the histological and immunohistochemical characteristics of neoplasias. In view of this, the purpose of study was to investigate the influences of prostate cancer differentiation on peculiarities of Ki-67 and p53 expression.Item Prostate cancer leads to a change in the composition of tissue carbohydrates(Springer, 2019) Романюк, Анатолій Миколайович; Романюк, Анатолий Николаевич; Romaniuk, Anatolii Mykolaiovych; Піддубний, Артем Михайлович; Поддубный, Артем Михайлович; Piddubnyi, Artem Mykhailovych; Линдін, Микола Сергійович; Лындин, Николай Сергеевич; Lyndin, Mykola Serhiiovych; Сікора, Владислав Володимирович; Сикора, Владислав Владимирович; Sikora, Vladyslav Volodymyrovych; Гирявенко, Наталія Іванівна; Гирявенко, Наталья Ивановна; Hyriavenko, Nataliia Ivanivna; Москаленко, Роман Андрійович; Москаленко, Роман Андреевич; Moskalenko, Roman AndriiovychThe objective of the investigation is following - to study the changes in the composition of the carbohydrate components of prostate cancer tissue (PCa). Methods: 60 PCa samples (30 samples of PCa with intraluminal inclusions (prostatic calculi and corpora amylacea) and 30 without them) were used for study. 20 samples of benign prostatic hyperplasia tissue were used as control. All samples were examined by hematoxylin-eosin staining and by histochemistry (PAS reaction, alcian blue staining at pH 2.5). Results: Positive PAS staining was found both in the tissue of the prostate gland and in the secret. Strongest intensity of the signal was found in glands filled by secret. Corpora amylacea and the secret of the PCa glands were PAS-negative. BPH tissue had a weak alcian blue staining intensity. The secret of PCa glands was very positive for alcian blue staining. We indicate the presence of higher amount of acid mucopolysaccharides in the connective tissue component of PCa. Conclusion: Changes in the carbohydrate composition of the prostate tissue during carcinogenesis were found. It manifests in reduced amount of glycosaminoglycans and increased amount of acid mucopolysaccharides in both the secret of the glands and the tumour tissue.Item The effect of prostatic stones on the immunophenotype of prostate cancer cells(Lithuanian University of Health Sciences, 2019) Піддубний, Артем Михайлович; Поддубный, Артем Михайлович; Piddubnyi, Artem Mykhailovych; Линдін, Микола Сергійович; Лындин, Николай Сергеевич; Lyndin, Mykola Serhiiovych; Москаленко, Юлія Василівна; Москаленко, Юлия Васильевна; Moskalenko, Yuliia Vasylivna; Винниченко, Ігор Олександрович; Винниченко, Игорь Александрович; Vynnychenko, Ihor Oleksandrovych; Романюк, Анатолій Миколайович; Романюк, Анатолий Николаевич; Romaniuk, Anatolii Mykolaiovych; Москаленко, Роман Андрійович; Москаленко, Роман Андреевич; Moskalenko, Roman AndriiovychBackground.Prostate cancer (PGC) is leading the way in the structure of cancer morbidity around the world. The presence of prostatic concretions (PC) and skeletal metastases significantly reduces the patients’ life quality and worsens the prognosis of the disease. However, the phenomenon of osteotropic tumor metastases is not sufficiently studied. Aim.To define the impact of PC on the development of prostate cancer metastasis to the bones. Methods.10 samples of PGC with PC, 10 intact PGC specimens, and PGC metastasis tissue to lymph node were analysed. Histology (staining with hematoxylin-eosin), histochemistry (von Kossa reaction, alizarin red), immunohistochemistry (OSN, Col I, Col II, Bax, Casp3, MPO, CD68), SEM, EDS. Results.All PC samples had the calcium hydroxyapatite origin with a slight deviation from the stoichiometric composition and admixture of extraneous elements. Assessment of apoptotic potential (Вах and Саsp3) and inflammatory infiltration (MPO and CD68) revealed the significantly higher rates of these processes in PGC tissue with PC (p <0.01). We suggest that the combined effect of these factors predetermines the development of a specific phenotype of cancer cells. This phenomena is manifested by the significantly higher OSN and Col I osteoblastic markers expression in PGC with PC and metastatic tissue (p <0.05). Conclusions.The determination of osteoblastic markers expression in PGC can be used as criterion for evaluation of probability of bone metastases development. The presence of PC in PGC tissue can be an important prognostic information for clinicians.The presence of these pathological inclusions, namely the PC, promotes the expression of osteoblastic markers in PGC tissue, which helps the tumor cells to recognize a favorable microenvironment. Acknowlegments.This research has been performed with the financial support of grants of the Ministry of Education and Science of Ukraine No. 0117U003937 “The development of tumor diagnosis method of reproductive system organs using cellular adhesion molecules of cancerembryonic antigen” and No. 0118U003570 “The efficiency of “liquid biopsy” and tissue biopsy in the diagnosis and treatment of malignant tumors”.Item Osteonectin overexpression in the case of prostate cancer with intraluminal inclusions(Virchows Archiv, 2018) Піддубний, Артем Михайлович; Поддубный, Артем Михайлович; Piddubnyi, Artem Mykhailovych; Москаленко, Роман Андрійович; Москаленко, Роман Андреевич; Moskalenko, Roman Andriiovych; Radomychelski, I.-M.; Линдін, Микола Сергійович; Лындин, Николай Сергеевич; Lyndin, Mykola Serhiiovych; Сікора, Владислав Володимирович; Сикора, Владислав Владимирович; Sikora, Vladyslav Volodymyrovych; Романюк, Анатолій Миколайович; Романюк, Анатолий Николаевич; Romaniuk, Anatolii MykolaiovychOsteonectin (OSN) is secreted by osteoblasts during bone formation, initiating mineralization and promoting mineral crystal formation at sites of ectopic calcification. Also OSN was found in many types of human malignant tumours. The aim is to study the OSN expression in patients with prostate cancer (PC) and the presence of intraluminal inclusions (prostatolithes and amyloid cells). Method: OSN expression was investigated in tumours and in the adjacent prostatic tissue of 30 PCs with intraluminal inclusions and 30 PCs without them by immunohistochemistry. In each group 15 samples refer to moderately differentiated G2 and low-differentiated G3 tumours. Samples were fixed, embedded in paraffin, and analized for OSN accumulation using the anti-OSN antibody, followed by DAB detection substrate and counterstained with Mayer’s haematoxylin. Results: OSN expression was increased in PC tissues with pathological inclusions in comparison to those without them (p<0.001, Student test). Osteonectin was mostly localized in tumour cells cytoplasm, its expression was not observed in tumour microangiourea cells and in stroma. It was found that the OSN expression by tumour cells reduced during reduction of the malignant tumour differentiation (comparison of subgroups G2 and G3) (p<0.001 and p<0.01 respectively for groups I and II). Conclusion: OSN overexpression in tumours and in the adjacent prostatic tissue of PCs with intraluminal inclusions may be regarded as a prospective role for the osteosteogenic phenotype development of tumour cells and for the bone metastasis promotion.