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TOLUNAY, ŞAHSİNE

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ŞAHSİNE

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TOLUNAY

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  • Küçük resim yok
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    Long non-coding rnas as a predictive markers of group 3 medulloblastomas
    (Taylor & Francis, 2021-08-28) Mutlu, Melis; Tekin, Çağla; Ak Aksoy, Seçil; Taşkapılıoğlu, Mevlüt Özgur; Kaya, Seçkin; Balcin, Rabia Nur; Ocak, Pınar Eser; Bekar, Ahmet; Tolunay, Şahsine; Tunca, Berrin; Mutlu, Melis; Tekin, Çağla; Ak Aksoy, Seçil; TAŞKAPILIOĞLU, MEVLÜT ÖZGÜR; KAYA, İSMAİL SEÇKİN; BALÇIN, RABİA NUR; OCAK, PINAR; BEKAR, AHMET; TOLUNAY, ŞAHSİNE; TUNCA, BERRİN; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Tıbbi Biyoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/İnegöl Meslek Yüksekokulu.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Beyin Cerrahi Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı.; 0000-0001-5472-9065; 0000-0002-4256-2250; 0000-0003-0132-9927; 0000-0002-1619-6680; GXV-3107-2022; AAI-2073-2021; ADM-8457-2022; ABX-9081-2022; FPB-0403-2022; GDC-6329-2022; AAW-5254-2020; JGS-1849-2023; FDK-3229-2022; AAI-1612-2021
    Objective The appropriate treatments for the different molecular subgroups of medulloblastomas are challenging to determine. Hence, this study aimed to examine the expression profiles of long non-coding RNAs (LncRNAs) to determine a marker that may be important for treatment selection in these subgroups. Methods Changes in the expression of LncRNAs in the tissues of patients with medulloblastoma, which are classified into four subgroups according to their clinical characteristics and gene expression profiles, were examined via reverse transcription polymerase chain reaction. Moreover, there association with patient prognosis was evaluated. Results The expression levels of MALAT1 and SNGH16 were significantly higher in patients with group 3 medulloblastoma than in those with other subtypes. Patients with high expression levels of MALAT1 and SNGH16 had a relatively shorter overall survival than those with low expression levels. Conclusions Patients with group 3 medulloblastoma have a high MALAT1 level, which is associated with poor prognosis. Therefore, MALAT1 can be a new therapeutic target in medulloblastoma.
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    Coexistence of TERT C228T mutation and MALAT1 dysregulation in primary glioblastoma: new prognostic and therapeutic targets
    (Taylor & Francis, 2021-06-21) Ak Aksoy, Seçil; Mutlu, Melis; Tunca, Berrin; Kocaeli, Hasan; Taşkapılıoğlu, Mevlüt Özgür; Bekar, Ahmet; Tekin, Çağla; Arğadal, Ömer Gökay; Civan, Muhammet Nafi; Kaya, İsmail Seçkin; Ocak, Pınar Eser; Tolunay, Şahsine; AKSOY, SEÇİL; Mutlu, Melis; TUNCA, BERRİN; KOCAELİ, HASAN; TAŞKAPILIOĞLU, MEVLÜT ÖZGÜR; BEKAR, AHMET; Tekin, Çağla; ARGADAL, ÖMER GÖKAY; Civan, Muhammet Nafi; KAYA, İSMAİL SEÇKİN; OCAK, PINAR; TOLUNAY, ŞAHSİNE; Bursa Uludağ Üniversitesi/İnegöl Meslek Yüksekokulu.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Tıbbi Biyoloji Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Beyin Cerrahi Anabilim Dalı.; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Patoloji Anabilim Dalı.; 0000-0002-1619-6680; 0000-0001-5472-9065; 0000-0003-0132-9927; 0000-0002-5126-1548; ADM-8457-2022; ABX-9081-2022; AAI-2073-2021; FPB-0403-2022; ABI-6078-2020; FDK-3229-2022; AAW-5254-2020; GDC-6329-2022; CCA-2925-2022; HKP-0793-2023; ILC-4543-2023; AAI-1612-2021
    Objective: This study was designed to conduct molecular classification based on IDH1/2, TERT, ATRX, and DAXX changes in pediatric and adult primary glioblastoma (GB) and to analyze the potential interaction of LncRNA MALAT1 in the determined homogeneous subgroups. Methods: We analyzed the expression profiles of ATRX/DAXX and MALAT1 using the qRT-PCR method and IDH and TERT mutation status using DNA sequencing analysis in 85 primary pediatric and adult GB patients. Results: IDH1 mutation was observed in 5 (5.88%) and TERT mutation in 65 (76.47%) primary pediatric and adult GB patients. ATRX and DAXX were detected in 18 (21.18%) and 7 (8.24%) patients. TERT mutation and loss of ATRX/DAXX were associated with short overall survival (p < 0.001, p < 0.001, respectively). Patients carrying especially TERT C228T mutation had worse prognosis (p < 0.001). Six subgroups were obtained from the genetic analysis. Among the subgroups, MALAT1 was highly expressed in group A that had a single TERT mutation as compared to that in groups D and E (p = 0.001 and p < 0.001, respectively); further, high MALAT1 expression was associated with worse prognosis in patients with C228T mutation (p < 0.001). Conclusions: Our findings highlight that the presence of TERT C228T mutation and expression of MALAT1 can be used as primary targets during the follow-up of primary GB patients and in the development of new treatment strategies.