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KABUL, SELVA

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KABUL

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SELVA

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2013 - 20152
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    Publication
    Prognostic value of p53 protein expression in giant cell tumor of bone
    (Vesalius Univ Medical Publ, 2015-12-01) Yalçınkaya, Ulviye; Uğraş, Nesrin; Kabul, Selva; Ocakoğlu, Gökhan; Bilgen, Muhammed S.; YALÇINKAYA, ÜLVİYE; UĞRAŞ, NESRİN; KABUL, SELVA; Bilgen, Muhammed S.; Ocakoğlu, Gökhan; Uludağ Üniversitesi/Tıp Fakültesi/Cerrahi Patoloji Anabilim Dalı.; Uludağ Üniversitesi/Tıp Fakültesi/Onkoloji ve Pediatrik Biyoistatistik Anabilim Dalı.; Uludağ Üniversitesi/Tıp Fakültesi/Ortopedi Anabilim Dalı.; 0000-0002-1114-6051; AAH-2716-2021; AAH-8924-2021; HLG-6346-2023; AAH-5180-2021; CAH-9737-2022; ELH-9133-2022
    Giant cell tumor of bone (GCTB) is a benign tumor with a tendency for local recurrence. GCTB may cause lung metastases, and secondary malignant GCTB is rare. Its histological appearance does not predict local aggressiveness and/or the metastatic potential of the tumor. We aimed to investigate the prognostic value of the Ki-67 proliferative index and p53 protein expression in GCTB in predicting local recurrence, lung metastasis, and malignant transformation. We retrospectively reviewed 42 cases of GCTB. The p53 expression was positive in 20 cases. We used 10% as a cut-off value for p53 expression. In 10 cases, there were local recurrences. Lung metastases were found in three cases and malignant transformation was found in one case with classical GCTB located in the sacrum three years following diagnosis. The Ki-67 index was higher in cases with recurrence, but this difference was not statistically significant. Of the recurrent cases, two had no p53 staining while eight had moderate-to-strong staining. The staining was usually weakly positive in the non-recurrent cases. In conclusion, we believe that p53 may be used as a marker for the biological behavior of GCTB.
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    Prognostic significance of estrogen receptor, progesterone receptor, her2/neu, ki-67, and nm23 expression in patients with invasive breast cancer
    (Imprimatur Publications, 2013-04-01) Ölmez, F.; Çubukçu, E.; ÇUBUKÇU, ERDEM; DELİGÖNÜL, ADEM; Kanat, O.; Ölmez, O. Fatih; Kabul, S.; KABUL, SELVA; Canhoroz, M.; Avcı, N.; Deligönül, A.; Hartavi, M.; Çubukçu, S.; ÇUBUKÇU, SİNEM; Kurt, E.; Evrensel, T.; EVRENSEL, TÜRKKAN; Gökgöz, S.; GÖKGÖZ, MUSTAFA ŞEHSUVAR; Manavoğlu, O.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Onkoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Genel Cerrahi Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı.; AAJ-1027-2021
    Purpose: To determine the prognostic significance of estrogen receptor (ER), progesterone receptor (PR), HER2/neu, Ki-67, and nm23 immunohistochemical expression with respect to progression free survival (PFS) and overall survival (OS) in Turkish patients with invasive breast cancer (IBC).Methods: Patients with IBC (n = 81; mean age = 51.9 +/- 11.1 years) were prospectively enrolled at the Department of Oncology, Uludag University Medical Center, Bursa, Turkey. Immunohistochemistry was performed on formalin-fixed, paraffin-embedded tissue sections.Results: We did not find any significant association between immunohistochemical expression of ER, PR, HER2/neu, Ki-67, and nm23 and the baseline characteristics of IBC patients. The median patient PFS was 30 months (range 22-45), and the median OS was 32 months (range 23-46). Stratification of the patient population according to nm23 immunohistochemical expression revealed a statistically significant difference in terms of both OS (p < 0.05) and DFS (p < 0.05). Multivariate Cox regression analysis indicated that tumor grade, axillary lymph node status, and nm23 immunohistochemical expression were the 3 main independent prognostic factors for PFS and OS in IBC patients.Conclusion: Reduced nm23 immunohistochemical expression is an independent negative prognostic factor for OS and PFS. Patients with negative nm23 expression may require a more intensive follow-up.