Person: ÇUBUKÇU, ERDEM
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ÇUBUKÇU
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ERDEM
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Publication Lack of prognostic significance of adiponectin immunohistochemical expression in patients with triplenegative breast cancer(Termedia Publishing House Ltd, 2014-01-01) Çubukçu, Erdem; Ölmez, Ömer Fatih; Kanat, Özkan; Kabul, Selva; Canhoroz, Mustafa; Avcı, Nilüfer; Hartavi, Mustafa; Deligönül, Adem; Çubukçu, Sinem; Manavoğlu, Osman; ÇUBUKÇU, ERDEM; Ölmez, Ömer Fatih; Kanat, Özkan; KABUL, SELVA; Canhoroz, Mustafa; Avcı, Nilüfer; Hartavi, Mustafa; DELİGÖNÜL, ADEM; ÇUBUKÇU, SİNEM; Manavoğlu, Osman; Tıp Fakültesi; İç Hastalıkları Ana Bilim Dalı; ETP-1691-2022; DJG-4827-2022; CYM-0930-2022; CAH-9737-2022; CJW-6018-2022; CCT-7946-2022; CUI-5353-2022; ESM-4544-2022; JJB-0254-2023; FLP-9613-2022Introduction: Triple-negative breast cancers (TNBCs) -which lack the expression of estrogen receptor (ER), progesterone receptor (PR) and human epidermal growth factor receptor 2 (HER-2)-have no established markers that can be used for prognostic stratification. As adiponectin has been previously implicated in a more aggressive phenotype of primary breast cancer, we explored the relation between adiponectin immunohistochemical expression and prognosis in TNBCs.Material and methods: Immunohistochemical staining for adiponectin was performed in 38 TNBC patients. Disease-free survival (DFS) and overall survival (OS) served as the main outcome measures.Results: Of the 38 TNBC patients, 18 (47%) had negative and 20 (53%) positive adiponectin immunohistochemical expression. We did not find any significant association between adipo-nectin immunohistochemical expression and the baseline characteristics. In addition, there were no associations between adiponectin immunohistochemical expression and prognosis.Conclusions: Although our results suggest that adiponectin immunohistochemical expression is not of prognostic significance in TNBCs, further studies are warranted to determine the role of this adipokine in breast cancer biology.Publication DPYD c.1905+1G>A promotes fluoropyrimidine-induced anemia, a prognostic factor in disease-free survival, in colorectal cancer(Mary Ann Liebert, Inc, 2021-04-01) Deligönül, Adem; Aksoy, Seçil; Tezcan, Gülçin; Tunca, Berrin; Kanat, Özkan; Çubukcu, Erdem; Yılmazlar, Tuncay; Öztürk, Ersin; Egeli, Ünal; Çeçener, Gülşah; Alemdar, Adem; Evrensel, Türkkan; DELİGÖNÜL, ADEM; AKSOY, SEÇİL; TEZCAN, GÜLÇİN; TUNCA, BERRİN; Kanat, Özka; ÇUBUKÇU, ERDEM; YILMAZLAR, AHMET TUNCAY; EGELİ, ÜNAL; ÇEÇENER, GÜLŞAH; ALEMDAR, ADEM; EVRENSEL, TÜRKKAN; Sağlık Bilimleri Enstitüsü; Tıbbi Onkoloji Ana Bilim Dalı; 0000-0002-6400-4911; 0000-0002-5956-8755; 0000-0002-1619-6680; 0000-0001-8593-5101; 0000-0001-7904-883X; 0000-0002-3820-424X; HIZ-7332-2022; AAH-1420-2021; AAH-3843-2020; ESM-4544-2022; JDG-0330-2023; ABI-6078-2020; CYM-0930-2022; ETP-1691-2022; CKK-3621-2022; AAP-9988-2020; EXZ-0745-2022Background and Aim: In 10-30% of colorectal cancer (CRC) patients, toxic reactions occur after fluoropyrimidine-based chemotherapy. A dihydropyridine dehydrogenase (DPYD) gene variant, c.1905 + 1G>A, leads to intolerance to fluoropyrimidines. Due to the low frequency of this variant in many populations, the prevalence of fluoropyrimidine-induced hematologic side effects in CRC patients with the c.1905 + 1G>A variant is unclear. In this study, we investigated the prevalence of the DPYD c.1905 + 1 variants in a Turkish CRC cohort and the potential effects of these variants on fluoropyrimidine-induced hematologic side effects.Materials and Methods: The DPYD c.1905 + 1 variant was genotyped using polymerase chain reaction-restriction fragment length polymorphism analysis and confirmed by Sanger sequencing in peripheral blood samples of 100 CRC patients who received fluoropyrimidine-based chemotherapy and 60 healthy volunteers. The association of c.1905 + 1 variants with susceptibility to hematologic side effects was evaluated.Results: The DPYD c.1905 + 1G>A variant was more common in the CRC group than in the healthy control group (p = 0.001). The presence of the c.1905 + 1G>A variant was associated with thrombocytopenia (p = 0.039) and anemia (p = 0.035). CRC patients with fluoropyrimidine-induced anemia had shorter disease-free survival than CRC patients without fluoropyrimidine-induced anemia (p = 0.0009).Conclusions: Before administering fluoropyrimidine-based chemotherapy, genetic screening for the DPYD c.1905 + 1G>A variant should be performed with the aim of preventing anemia and anemia-induced complications in CRC patients.Publication Impact of adding pertuzumab to trastuzumab plus chemotherapy in neoadjuvant treatment of her2 positive breast cancer patients: A multicenter real-life her2path study(Taylor & Francis Ltd, 2023-04-20) Bilici, Ahmet; Ölmez, Ömer Fatih; Kaplan, Muhammed Ali; Öksüzoğlu, Berna; Sezer, Ahmet; Karadurmuş, Nuri; Sendur, Mehmet Ali Nahit; Aksoy, Sercan; Erdem, Dilek; Başaran, Gül; Çakar, Burcu; Shbair, Abdallah T. M.; Arslan, Çağatay; Sümbül, Ahmet Taner; Sezgin Göksu, Sema; Karadağ, Ibrahim; Cicin, Irfan; Gümüş, Mahmut; Selçukbiricik, Fatih; Harputluoglu, Hakan; Demirci, Umut; Çubukçu, Erdem; ÇUBUKÇU, ERDEM; Tıp Fakültesi; İç Hastalıkları Ana Bilim Dalı; ETP-1691-2022AimTo investigate the pathological complete response (pCR) achieved after neoadjuvant therapy with versus without adding pertuzumab (P) to trastuzumab (H) plus neoadjuvant chemotherapy (NCT) in HER2+ breast cancer (BC) patients in a real-life setting.MethodsA total of 1528 female HER2+ BC patients who received NCT plus H with or without P were included in this retrospective real-life study. Primary endpoint was pCR rate (ypT0/Tis ypN0). Clinicopathological characteristics, event-free survival (EFS) time, and relapse rates were evaluated with respect to HER2 blockade (NCT-H vs. NCT-HP) and pCR.ResultsOverall, 62.2% of patients received NCT-H and 37.8% received NCT-HP. NCT-HP was associated with a significantly higher pCR rate (66.4 vs. 56.8%, p < 0.001) and lower relapse (4.5 vs. 12.2%, p < 0.001) in comparison to NCT-H. Patients with pCR had a significantly lower relapse (5.6 vs. 14.9%, p < 0.001) and longer EFS time (mean(SE) 111.2(1.9) vs. 93.9(2.7) months, p < 0.001) compared to patients with non-pCR. Patients in the NCT-HP group were more likely to receive docetaxel (75.0 vs. 40.6%, p < 0.001), while those with pCR were more likely to receive paclitaxel (50.2 vs. 40.7%, p < 0.001) and NCT-HP (41.5 vs. 32.1%, p < 0.001). Hormone receptor status and breast conservation rates were similar in NCT-HP vs. NCT-H groups and in patients with vs. without pCR. Invasive ductal carcinoma (OR, 2.669, 95% CI 1.596 to 4.464, p < 0.001), lower histological grade of the tumor (OR, 4.052, 95% CI 2.446 to 6.713, p < 0.001 for grade 2 and OR, 3.496, 95% CI 2.020 to 6.053, p < 0.001 for grade 3), lower T stage (OR, 1.959, 95% CI 1.411 to 2.720, p < 0.001) and paclitaxel (vs. docetaxel, OR, 1.571, 95% CI 1.127 to 2.190, p = 0.008) significantly predicted the pCR.ConclusionsThis real-life study indicates that adding P to NCT-H enables higher pCR than NCT-H in HER2+ BC, while pCR was associated with lower relapse and better EFS time.Publication Are pretreatment inflammation-based prognostic scores useful in predicting the outcomes of patients with ALK-positive NSCLC?(Elsevier, 2019-10-01) Ölmez, O. F.; Bilici, A.; Gürsoy, P.; Çubukcu, Erdem; Yıldız, O.; Sakin, A.; Korkmaz, T.; Çil, I.; Çakar, B.; Menekşe, S.; Demir, T.; Açıkgöz, O.; Hamdard, J.; ÇUBUKÇU, ERDEM; Tıp Fakültesi; Tıbbi Onkoloji; JGT-4101-2023Publication Retrospective comparison of the efficacy of therapeutic agents in metastatic soft-tissue sarcomas(Kare Yayınevi, 2023-03-02) Caner, Burcu; Ocak, Birol; Şahin, Ahmet Bilgehan; Salı, Seda; Çoban, Eyüp; Deligönul, Adem; Çubukçu, Erdem; Evrensel, Türkkan; CANER, BURCU; SALİ, SEDA; ÇOBAN, EYÜP; DELİGÖNÜL, ADEM; ÇUBUKÇU, ERDEM; EVRENSEL, TÜRKKAN; Tıp Fakültesi; Tıbbi Onkoloji Ana Bilim Dalı; 0000-0003-1591-3323 ; HJH-6371-2023; DPO-3759-2022; JIS-1916-2023; JHC-1731-2023; JGT-4101-2023; EXZ-0745-2022OBJECTIVEThere are few agents used in soft-tissue sarcoma treatment. We compared the efficacy of therapies, aiming to identify the best therapy sequence, and reveal the factors affecting the risk of progression or death.METHODSFifty-five patients were included in the study. Data such as age, gender, tumor primary site, histological type, tumor grade, the Ki67 percentage score, treatments, radiotherapy, and metastasectomy history, the dates of diagnosis, metastasis, progression, and death were retrospectively evaluated. Progression-free survival (PFS) and overall survival (OS) for therapies, and the risk factors for the progression or death were analyzed.RESULTSIn the first-line, gemcitabine-docetaxel provided longer PFS than the doxorubicin-ifosfamide combination (7.4 months vs. 4.8 months, p=0.035), although this did not result in OS difference. In the second line, the efficacy of trabectedin and pazopanib were similar, whereas trabectedin showed less activity in liposarcomas. In the third-line and beyond, trabectedin, pazopanib and eribulin showed similar PFS and OS. The only factor that affected the risk of death was metastasectomy (HR for death: 0.35, 95% CI: 0.18-0.66, p=0.001). CONCLUSIONWe found that agents used in soft-tissue sarcoma have similar efficacy, which is not affected by the previous therapies. However, it should be noted that soft-tissue sarcomas include many histological types, and to choose the optimal drug, the histological type must be one of the major factors considered. Furthermore, all patients should be evaluated for possible metastasectomy, which came out as the only factor reducing the risk of death in our study.Publication The access rate to diagnosis and treatment modalities in breast cancer patients in Turkey; Multicenter observational study(Aves, 2011-04-01) şaip, Pınar; Keskin, Serkan; Özkan, Metin; Kaplan, Mehmet Ali; Aydoğan, Fatma; Demirağ, Güzin Gönüllü; Uzunoğlu, Sernaz; Engin, Hüseyin; Başaran, Gül; Güler, Nilüfer; Uygun, Kazım; Demirkan, Binnaz; Özdemir, Feyyaz; Çubukçu, Erdem; Salepci, Taflan; Cicin, İrfan; Özdemir, Feyyaz; ÇUBUKÇU, ERDEM; Tip Fakültesi; Tıbbi Onkoloji Bölümü; AAD-4816-2022; JGT-4101-2023Purpose: We aimed to determine the elapsed time between the first notification of the disease and the accession to the diagnosis and treatment modalities and its associated factors in female patients with breast cancer in Turkey.Patients and Methods: The data was acquired by a questionnaire completed by 535 patients who applied to the 14 various oncology clinics between 1st and 28th of February 2010 in Turkey. The centers located in metrople - Istanbul, Izmir, and Ankara- were named Group 1 (n= 161), the centers located in Marmara and Central Anatolia region - Kocaeli, Bursa, Edirne and Kayseri- were named Group 2 (n= 189), and the centers located in Karadeniz and East-Southeast Anatolia region - Zonguldak, Samsun, Trabzon, Elazig and Diyarbakir- were named Group 3 (n= 185). The grouping for the centers were configured according to their socio- economic development of provinces.Results: Median age was 48 +/- 11.2 (24- 89) years, the number of patients of age less than 50 years were 282 (% 56.1). 85% of the patients detected a mass in their breast by themselves. % 27 of the patients over age 50 never had a breast ultrasound and/ or mammography done until the definite diagnosis was established. The median elapsed time between the disease noticed by the patient and the application to a health care center was 10 days, between the application and the biopsy was 19 days, between the biopsy and the surgery was 31 days. The elapsed time between recognition of the disease by the patient and the patient applying to a health care center in Group 1, Group 2, and Group 3 was 15, 10 and 14 days, respectively, and the elapsed time between the biopsy and surgery was 14, 1.5 and 12 days, respectively. The elasped time between the first recognition of the disease and applying of the patient to the health care center and the elapsed time between the biopsy and surgery in Group 2 centers was statistically significantly shorter compared to group 1 and 3 centers (p< 0.05).Conclusions: A high level of awareness of breast cancer in our country has examined through the time that is defined as 10 days between recognition of the disease and medical application. Compared with the developed countries the elapsed time between the application and biopsy, surgery and systemic therapy is longer than the expected and it has been marked differences between regions.Publication The SOCS-1-1478CA/del functional polymorphism (rs33989964) is associated with gastric cancer but is unrelated to overall survival(Springer, 2023-02-13) Hartavi, Mustafa; Ölmez, Ömer Fatih; Oral, Barbaros; Çubukçu, Erdem; Nak, Selim Giray; Hartavi, Mustafa; Ölmez, Ömer Fatih; ORAL, HALUK BARBAROS; ÇUBUKÇU, ERDEM; NAK, SELİM GİRAY; Tıp Fakültesi; İmmünoloji Ana Bilim Dalı; CUI-5353-2022; DJG-4827-2022; DLT-1037-2022; ETP-1691-2022; FQM-3662-2022BackgroundIn vitro studies have shown that the functional - 1478CA > del polymorphism (rs33989964) of the suppressor of cytokine signaling (SOCS)-1 gene is associated with an altered trascriptional activity. Here, we sought to examine the potential association of this polymorphism with the risk of gastric cancer (GC) and to analyze its prognostic impact on overall survival (OS).Materials and methodsThe study cohort consisted of 74 Turkish patients with GC and 52 healthy controls. Genotyping of the SOCS-1 -1478CA > del polymorphism was carried out using restriction fragment length polymorphism analysis.ResultsAfter allowance of age and sex, multivariable logistic regression analysis revealed that the carriage of the del allele of the SOCS-1 -1478CA > del polymorphism was independently associated with an increased risk of GC (odds ratio = 6.78, 95% confidence interval = 3.24-10.99, P < 0.001). Kaplan-Meier analysis revealed no significant differences in OS for patients harboring at least one del allele of rs33989964 compared with CA/CA homozygotes (log-rank test, P = 0.17).ConclusionWhile the SOCS-1 -1478CA > del polymorphism is significantly associated with the risk of GC in the Turkish population, it does not affect OS.Publication The immunohistochemical expression of c-met is an independent predictor of survival in patients with glioblastoma multiforme(Springer International Publishing Ag, 2014-02-01) Ölmez, O. F.; Çubukçu, E.; ÇUBUKÇU, ERDEM; Evrensel, T.; EVRENSEL, TÜRKKAN; Kurt, M.; Avcı, N.; Tolunay, S.; TOLUNAY, ŞAHSİNE; Bekar, Ahmet; BEKAR, AHMET; Deligönül, Adem; DELİGÖNÜL, ADEM; Hartavi, M.; Alkış, N.; Manavoğlu, O.; Tıp Fakültesi; Onkoloji Ana Bilim Dalı; ABX-9081-2022; AAJ-1027-2021; AAA-3961-2020; AAI-1612-2021Because the outcome of glioblastoma multiforme (GBM) remains dismal, there is an urgent need for a better molecular characterization of this malignancy. The aim of this prospective study was to investigate the prognostic impact of the expression of c-mesenchymal-epithelial transition (c-Met) a receptor tyrosine kinase implicated in expression growth, survival, motility/migration, and invasion in GMB patients managed according to the established diagnostic and therapeutic protocols.Between May 2003 and March 2011, a total of 69 patients (33 males and 36 females; mean age: 52.2 +/- A 12.9 years, age range: 23-81 years) referred to our Department for the surgical removal of GBM were evaluated immunohistochemically for c-Met expression. Progression-free survival (PFS) and overall survival (OS) served as the main outcome measures.Compared with c-Met- subjects (n = 38), c-Met+ subjects (n = 31) had both a significantly lower OS (15.3 +/- A 2.3 vs. 22.6 +/- A 2.5 months, respectively, p < 0.01) and PFS (12.3 +/- A 2.1 vs. 19.1 +/- A 2.6 months, respectively, p < 0.05). After allowance for potential confounders, multivariate Cox regression analysis identified c-Met+ as an independent predictor of both OS (hazard ratio = 1.7; 95 % confidence interval = 1.2-1.9, p < 0.01) and PFS (hazard ratio = 1.6; 95 % confidence interval = 1.1-2.3, p < 0.05).Our findings suggest that c-Met immunohistochemical expression is an independent predictor of outcomes in patients with GBM treated by standard of care.Publication First-line anti-EGFR agents (panitumumab or cetuximab) plus chemotherapy in patients with metastatic colorectal cancer: Onco-colon turkey study subgroup analysis(Elsevier, 2022-06-01) Işıkdoğan, A.; Türk, H.; Bilir, C.; Sendur, M.; Karabulut, B.; Artaç, M.; Cicin, I.; Geredeli, C.; Alacacıoğlu, A.; Kefeli, U.; Harputluoğlu, H.; Bozkurt, O.; Çubukcu, E.; Tural, D.; Sakin, A.; Çil, T.; Dane, F.; Çevik, D.; Arslan, C.; Karadurmuş, N.; Gümüş, M.; Yalçın, S.; ÇUBUKÇU, ERDEM; Tıp Fakültesi; ETP-1691-2022Publication Treatment efficacy of ribociclib or palbociclib plus letrozole in hormone receptor-positive/HER2-negative metastatic breast cancer(Future Medicine Ltd, 2023-05-03) Kahraman, Seda; Erul, Enes; Seyyar, Mustafa; Gumusay, Ozge; Bayram, Ertugrul; Demirel, Burcin Cakan; Acar, Omer; Aksoy, Sercan; Baytemur, Naziyet Kose; Sahin, Elif; Cabuk, Devrim; Basaran, Gul; Paydas, Semra; Yaren, Arzu; Guven, Deniz Can; Erdogan, Atike Pinar; Demirci, Umut; Yasar, Alper; Bayoglu, Ibrahim Vedat; Hizal, Mutlu; Gulbagci, Burcu; Paksoy, Nail; Davarci, Sena Ece; Yilmaz, Funda; Dogan, Ozlem; Orhan, Sibel Oyucu; Kayikcioglu, Erkan; Aytac, Ali; Keskinkilic, Merve; Mocan, Eda Eylemer; Unal, Olcun Umit; Aydin, Esra; Yucel, Hakan; Isik, Deniz; Eren, Onder; Uluc, Basak Oyan; Ozcelik, Melike; Hacibekiroglu, Ilhan; Aydiner, Adnan; Demir, Hacer; Oksuzoglu, Berna; Cilbir, Ebru; Cubukcu, Erdem; Cetin, Bulent; Oktay, Esin; Erol, Cihan; Okutur, Sadi Kerem; Yildirim, Nilgun; Alkan, Ali; Selcukbiricik, Fatih; Aksoy, Asude; Karakas, Yusuf; Ozkanli, Gulhan; Duman, Berna Bozkurt; Aydin, Dincer; Dulgar, Ozgecan; Er, Muhammed Muhiddin; Teker, Fatih; Yavuzsen, Tugba; Aykan, Musa Baris; Inal, Ali; Iriagac, Yakup; Kalkan, Nurhan Onal; Keser, Murat; Sakalar, Teoman; Menekse, Serkan; Kut, Engin; Bilgin, Burak; Karaoglanoglu, Muge; Sunar, Veli; Ozdemir, Ozlem; Turhal, Nazim Serdar; Karadurmus, Nuri; Yalcin, Bulent; Sendur, Mehmet Ali Nahit; OYUCU ORHAN, SİBEL; ÇUBUKÇU, ERDEM; Tıp Fakültesi; Onkoloji Ana Bilim Dalı; 0000-0001-8217-3471 ; ETP-1691-2022; AAJ-8314-2021Background: Ribociclib, palbociclib and abemaciclib are currently approved CDK4/6 inhibitors along with aromatase inhibitors as the first-line standard-of-care for patients with hormone receptor-positive, HER2-negative metastatic breast cancer. Methods: The authors report retrospective real-life data for 600 patients with estrogen receptor- and/or progesterone receptor-positive and HER2-negative metastatic breast cancer who were treated with ribociclib and palbociclib in combination with letrozole. Results & conclusion: The results demonstrated that the combination of palbociclib or ribociclib with letrozole has similar progression-free survival and overall survival benefit in real life for the patient group with similar clinical features. Specifically, endocrine sensitivity may be a factor to be considered in the treatment preference.