Person: FİLİNTE, DENİZ
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FİLİNTE
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DENİZ
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Publication Metadata only Mesane kanseri tanısında kullanılmak üzere üriner protein ve ekzozomal mikro RNA belirteci saptanması(2019-10-27) FİLİNTE, DENİZ; PEKER EYÜBOĞLU, İREM; GÜLLÜ AMURAN G., TİNAY İ., ILGIN C., FİLİNTE D., PEKER EYÜBOĞLU İ.Publication Metadata only Is Cognitive MR Fusion Biopsy Superior to Standard TRUS Guided Prostate Biopsy? Our Clinical Experience(2022-06-01) FİLİNTE, DENİZ; ÇAM, HAYDAR KAMİL; ŞAHİN, BAHADIR; DÖRÜCÜ, DOĞANCAN; ŞAHİN B., DÖRÜCÜ D., TİNAY İ., FİLİNTE D., ÇAM H. K.Objective: To share our clinical experience with cognitive prostate biopsy and compare results of cognitive biopsies with standard biopsies.Publication Metadata only Suppressive effect of compact bone-derived mesenchymal stem cells on chronic airway remodeling in murine model of asthma(ELSEVIER SCIENCE BV, 2014) FİLİNTE, DENİZ; Ogulur, Ismail; Gurhan, Gulben; Aksoy, Ayca; Duruksu, Gokhan; Inci, Cigdem; Filinte, Deniz; Kombak, Faruk Erdem; Karaoz, Erdal; Akkoc, TuncNew therapeutic strategies are needed in the treatment of asthma besides vaccines and pharmacotherapies. For the development of novel therapies, the use of mesenchymal stem cells (MSCs) is a promising approach in regenerative medicine. Delivery of compact bone (CB) derived MSCs to the injured lungs is an alternative treatment strategy for chronic asthma. In this study, we aimed to isolate highly enriched population of MSCs from mouse CB with regenerative capacity, and to investigate the impact of these cells in airway remodeling and inflammation in experimental ovalbumin-induced mouse model of chronic asthma. mCB-MSCs were isolated, characterized, labeled with GFP and then transferred into mice with chronic asthma developed by ovalbumin (OVA) provocation. Histopathological changes including basement membrane, epithelium, subepithelial smooth thickness and goblet cell hyperplasia, and MSCs migration to lung tissues were evaluated. These histopathological alterations were increased in ovalbumin-treated mice compared to PBS group (P < 0.001). Intravenous administration of mCB-MSC significantly reduced these histopathological changes in both distal and proximal airways (P < 0.001). We showed that GFP-labeled MSCs were located in the lungs of OVA group 2 weeks after intravenous induction. mCB-MSCs also significantly promoted Treg response in ovalbumin-treated mice (OVA + MSC group) (P < 0.037). Our studies revealed that mCB-MSCs migrated to lung tissue and suppressed histopathological changes in murine model of asthma. The results reported here provided evidence that mCB-MSCs may be an alternative strategy for the treatment of remodeling and inflammation associated with chronic asthma. (C) 2014 Elsevier B.V. All rights reserved.Publication Metadata only Urinary micro-RNA expressions and protein concentrations may differentiate bladder cancer patients from healthy controls(SPRINGER, 2020) ILGIN, CAN; Amuran, Gokce Gullu; Tinay, Ilker; Filinte, Deniz; Ilgin, Can; Eyuboglu, Irem Peker; Akkiprik, MustafaPurpose To determine expression differences of urine exosomal miR-19b1-5p, 21-5p, 136-3p, 139-5p, 210-3p and concentration differences of urinary BLCA-4, NMP22, APE1/Ref1, CRK, VIM between bladder cancer, follow-up patients, and control samples, to evaluate diagnostic importance of these differences and establish a diagnostic panel for bladder cancer. Methods Urine samples of 59 bladder cancer patients, 34 healthy controls, and 12 follow-up patients without recurrence were enrolled to this study. Real-time PCR and ELISA were performed to determine urine exosomal miR-19b1-5p, 21-5p, 136-3p, 139-5p, 210-3p expressions and urinary BLCA-4, NMP22, APE1/Ref1, CRK, VIM, creatinine concentrations. Logistic regression analyses were performed to determine the diagnostic panel, the sensitivity, and specificity of the panel assessed by the ROC curve analysis. p values < 0.05 were considered statistically significant. Results In bladder cancer risk groups, mir-139, -136, -19 and 210 expressions or positivity were found to be different and concentrations of urinary Ape1/Ref1, BLCA4, CRK, and VIM increased by twofold on average compared to healthy controls. Logistic regression and ROC analyses revealed that panel could differentiate bladder cancer patients from healthy controls with 80% sensitivity and 88% specificity (AUC = 0.899), low-risk patients from controls with 93% sensitivity and 95.5% specificity (AUC = 0.976). Despite the low number of samples, our findings suggest that urine exosomal miR-19b1-5p, 136-3p, 139-5p expression, and urinary APE1/Ref1, BLCA-4, CRK concentrations are promising candidates in terms of bladder cancer diagnosis. Conclusions Although our panel has great sensitivity for early detection of BC, it needs to be validated in larger populations.Publication Metadata only Increasing the survival of transverse rectus abdominis musculocutaneous flaps with a Botulinum toxin-A injection: A comparison of surgical and chemical flap delay methods(ELSEVIER SCI LTD, 2016) FİLİNTE, DENİZ; Temiz, Gokhan; Yesiloglu, Nebil; Sirinoglu, Hakan; Akpinar, Ali Cem; Sarici, Murat; Filinte, Deniz; Filinte, Gaye Taylan; Bozkurt, MehmetBackground: Botulinum toxin type-A (Bot-A) is a commonly used drug for both cosmetic and therapeutic purposes. The effects of Bot-A on skin and muscle flaps and the related mechanisms have been described previously. In this study, we used a rat transverse rectus abdominis musculocutaneous (TRAM) flap model to examine the effects of Bot-A on the skin island, which is perfused by the rectus abdominis muscle according to the angiosome concept. Methods: Forty female rats were divided into five groups, including control and sham groups. In the control group, a TRAM flap was raised and sutured back after inserting a silicone sheath underneath the flap. In the sham group, the flap was raised 1 month after injecting saline into the muscle. In the chemical delay group, the flap was raised 1 month after injecting 10 IU of Bot-A. In the surgical delay group, the flap was raised 2 weeks after ligating the cranial epigastric artery. In the surgical and chemical delay group, a Bot-A injection was performed initially, a cranial epigastric artery was ligated after 2 weeks, and a TRAM flap was raised after the first month. In all groups, laser Doppler examination, photographic documentation, and analysis of the flap survival rates were performed. In the histopathological evaluation, the diameter measurements of the caudal epigastric vessels, vascular density measurements using CD31 stain, and apoptotic rate estimation using the Tunnel method were performed. Results: The necrosis ratios, arterial cross-sectional diameters, and microvascular density measurements were significantly superior compared to those of control and sham groups; however, there was no significant difference between the delay groups. There was also no difference in the laser Doppler measurements between the groups and the zones of the TRAM flaps. Conclusion: An injection of Bot-A increases muscular circulation and flap survival of TRAM flaps in rats. (C) 2016 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.Publication Open Access Atypical Cell'' Parameter in Automated Urine Analysis for the Diagnosis of Bladder Cancer: A Retrospective Pilot Study(GALENOS YAYINCILIK, 2020-04-01) FİLİNTE, DENİZ; Tinay, Ilker; Sahin, Bahadir; Saracoglu, Sertac; Yanilmaz, Ozgur; Aksu, Mehmet Burak; Ayas, Ramazan; Filinte, Deniz; Cam, Haydar Kamil; Ilki, ArzuObjective: To evaluate the application of an automated urine analyzer (AUA) for the diagnosis of bladder cancer (BC) Materials and Methods: A retrospective data analysis of 2365 urine specimens from the department of urology has been performed and matched with those patients, who have undergone cystoscopic evaluation or surgical treatment for different urological pathologies during 2018. After matching, clinical records of the patients has been further evaluated in order to select patients with recent or previous BC diagnosis. To assess the diagnostic efficacy of AUA, patients were divided into five groups according to the patient history of BC and healthy controls. Results: A total of 106 patients are included in this study and the majority (69.8%) of the patients are follow-up patients with previous diagnosis and treatment of non-muscle invasive BC (NMIBC). For patients with low-risk NMIBC (n=27), the sensitivity and specificity were calculated as 75% and 100%. For patients with high-risk NMIBC (n=47), who were previously treated with intravesical BCG, the sensitivity and specificity were calculated as 54.5% and 83.3%. All patients in radical cystectomy group (n=7) with muscle invasive BC had positive urine analyses results for atypical cells. And none of the patients in the control group (n=8) had positive AUA results and cystoscopic evaluation also did not show any bladder mass suspicious for BC. Conclusion: The results of this retrospective pilot study showed acceptable sensitivity and specificity rates of the fluorescence flow cytometry based AUA and the results of the low-risk group are especially valuable regarding its potential use to decide on performing a follow-up cystoscopy or not. A prospective study is currently on progress to validate the findings of the current study.Publication Open Access Risk factors of patients with prostate cancer upgrading for international society of urological pathology grade group I after radical prostatectomy(2022-01-01) ÖZGÜR, GÜNAL; FİLİNTE, DENİZ; ÇAM, HAYDAR KAMİL; ÖZGÜR A., ÖZGÜR G., ŞAHİN B., FİLİNTE D., TİNAY İ., ÇAM H. K., TÜRKERİ N. L.Objective: This study aimed to determine the predictive factors for patients whose International Society of Urological Pathology (ISUP) score was upgraded in radical prostatectomy (RP) pathologies with a prostate biopsy pathology of ISUP grade group 1. Materials and Methods: Among patients who underwent RP in our clinic within 10 years, 158 patients with prostate biopsy pathology of ISUP grade group 1 were examined retrospectively. Age, serum prostate-specific antigen (PSA) level, prostate biopsy ISUP grade group, number of cores taken in the prostate biopsy, number of tumor-positive cores, RP pathology ISUP grade group, and pathological stage were evaluated. Results: The mean age (± standard) of the 158 patients whose prostate biopsy pathology was ISUP grade group 1 were 64.07 (±6.6). ISUP group upgrading was detected in 47 patients (29.7%). The mean PSA value of these patients was 10.6 ng/mL (±6.9). The mean PSA value of the other 111 patients without ISUP group upgrading was 7.98 ng/mL (±4.9). The serum PSA level was significantly higher in patients with upgraded ISUP in the RP pathology (p=0.02). The percentage of tumor-positive cores in the group with ISUP group upgrading (37%) was significantly higher than that in the group without ISUP group upgrading (27%) (p=0.01). The detection rates of surgical margin positivity (42.6% vs. 18%), capsule invasion (55.3% vs. 19.8%), and seminal vesicle invasion (23.6% vs. 3.6%) were also significantly higher in the upgraded ISUP group after RP (p<0.05). Conclusion: The results of this trial suggest that active surveillance may not be an appropriate option for patients with biopsy ISUP grade group 1 with PSA level >10 ng/mL. Moreover, the presence of a higher number and percentage of tumor-positive cores constituted risks of ISUP group upgrading with concomitant poor pathological outcomes such as surgical margin positivity, capsule invasion, and seminal vesicle invasion.Publication Open Access The Intensity of PLA2R and C4d_x000D_ Immunoexpression in Primary_x000D_ Membranous Nephropathy(2019) FİLİNTE, DENİZ; Deniz FİLİNTE;Hakkı ARIKAN;Mehmet KOÇ;Handan KAYA;İshak Çetin ÖZENER;Gamze AKBAŞObjective: Antibodies against the phospholipase A2 receptor (PLA2R) on podocyte membranes result in the formation of immune complexes that cause loss of function of theglomerular basement membrane in primary membranous nephropathy (PMN). It has alsobeen demonstrated that there is a deposition of complement 4d (C4d) in the glomeruli inPMN. The present study aims to evaluate PLA2R and C4d immunoexpressions in PMN casesand search the correlation with the clinical parameters.Methods: In this study, clinicopathological data and paraffin-embedded specimens werecollected from 51 patients. The formalin-fixed paraffin-embedded tissues were stained usingroutine hematoxylin-eosin, periodic acid-Schiff, and silver methenamine stains and immunostained for anti-PLA2R and C4d. Ten normal kidney tissues and 10 focal segmental glomerulosclerosis (FSGS) cases were selected as controls for PLA2R and C4d immunoexpression.Results: Of the PMN cases, 51 (100%) cases were positive for PLA2R, including 15 (29%)cases that scored 2+, and 36 (71%) cases that scored 3+. Forty of the 51 cases (78%) werepositive for C4d. The percentages of cases staining positively for C4d, per scoring group,were as follows: 31 (61%) cases faintly (1+) positive and 9 (18%) cases moderately (2+)positive. No strong positivity was observed. All of the control cases (100%) were negativefor PLA2R and C4d. There was no statistically significant difference between the intensity ofthe staining of PLA2R and the staining of C4d, proteinuria levels, creatinine levels, and complement 3 (C3) positivity. Similarly, there was no statistically significant difference betweenthe intensity of the staining of C4d and proteinuria levels, creatinine levels, and C3 positivity.Conclusion: Immunohistochemical detection of PLA2R and C4d is a safe and easy methodfor the diagnosis of PMN. In cases where fresh tissue is not available for the detection of IgGand C3 using the immunofluorescence method, positivity for PLA2R and C4d with immunohistochemistry may be beneficial for the diagnosis of PMN.Publication Metadata only Allogeneic pluripotent stem cells suppress airway inflammation in murine model of acute asthma(ELSEVIER, 2014) FİLİNTE, DENİZ; Ogulur, Ismail; Gurhan, Gulben; Kombak, Faruk Erdem; Filinte, Deniz; Barlan, Isil; Akkoc, TuncNew strategies are needed to suppress airway inflammation and prevent or reverse airway remodeling in asthma. Reprogramming induced pluripotent stem cells (iPSCs) have the potential of embryonic stem cells (ESCs) and provide a resource for stem cell-based utility. The aim of this study was to evaluate the histopathological and immunomodulatory effects of ESCs and iPSCs for potential allogenic application in a murine model of acute asthma. BALB/c mice were sensitized with alum-absorbed ovalbumin (OVA) and then challenged with 1% aerosolized OVA. 5 x 10(5) ESCs and iPSCs were administrated intranasally on the last day of nebulization. Mice were sacrificed after 24 h, and serum allergen specific antibody level, airway remodeling, cytokine levels in lung supernatants, and eosinophilic infiltration in BAL fluid were examined. As a result, more ESCs and iPSCs integrated into the lungs of mice in OVA groups than those of the controls. Epithelial, smooth muscle and basal membrane thicknesses as well as goblet cell hyperplasia occurring in airway remodeling were significantly suppressed by pluripotent stem cells in both distal and proximal airways. Percentage of eosinophils decreased significantly in BAL fluid as well as serum allergen-specific IgE and IL-4 levels in lung supernatants. On the contrary, regulatory cytokine - IL-10 level - was enhanced. Application of especially ESCs significantly increased the percentage of Treg subsets. Our comparative results showed that i.n. delivery of miRNA-based reprogrammed iPSCs is beneficial in attenuating airway inflammation in a murine model of acute asthma, and that cells also have similar immunomodulatory effects in mice. (C) 2014 Elsevier B.V. All rights reserved.Publication Metadata only Effects of Different Concentrations of Injectable Collagenase Enzyme on Capsular Tissue Around Silicone Implants: A Preliminary Experimental Study for the Development of a New Treatment Strategy(SPRINGER, 2016) FİLİNTE, DENİZ; Yesiloglu, Nebil; Temiz, Gokhan; Sarici, Murat; Yildiz, Kemalettin; Sirinoglu, Hakan; Guvercin, Emre; Akpinar, Ali Cem; Filinte, Gaye Taylan; Filinte, DenizIn recent studies, collagen organization was blamed for the formation of capsular contracture which is still a challenging problem after silicone implant-based breast operations. In this study, effects of different concentrations of collagenase enzyme derived from Clostridium histolyticum on the capsular tissue formation around the silicone implants were investigated. The injectable form of collagenase has a routine clinical use in the treatment of both Dupuytren's and Peyronie's diseases. Thirty-two Wistar albino rats were randomized into four groups. A 2 x 1 x 0.3-cm-sized silicone block was inserted inside a dorsal subcutaneous pocket in all groups. After 2 months of insertion, capsule thicknesses around the implants were detected under ultrasonography. This was followed by injection of isotonic saline, 150, 300, and 600 IU in Gr-1, 2, 3, and 4, respectively. All the animals were sacrificed at the end of the first week for histologic sampling to determine fibroblast proliferation, vessel density of the tissue, necrosis, edema, inflammation, and capsule thickness. All the data were statistically analyzed using Kruskal-Wallis and Mann-Whitney U tests and compared for significance of the results. There was no significant difference in terms of capsule thinning between the 300 and 600 IU groups but in both groups thinning was significantly higher than the sham group. In the 150 IU group there was no significant thinning as compared to the sham group (p > 0.05). However, complications such as skin necrosis, infection, and seroma formation were seen only in the 600 IU injection group. The optimal safe and effective dose of the enzyme was accepted as 300 IU. The 300 IU injection provided up to 89 % thinning in the capsule tissue. There was thinning of the collagen bundles parallel to capsule thickness. In the 600 IU group, micro-pores were encountered at the thinnest points. However, the late results and recurrence rates of capsular contracture were not included in this study; collagenase seemed effective for the reduction of capsular tissue around the implants. This journal requires that authors assign a level of evidence to each submission to which Evidence-Based Medicine rankings are applicable. This excludes Review Articles, Book Reviews, and manuscripts that concern Basic Science, Animal Studies, Cadaver Studies, and Experimental Studies. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors http://www.springer.com/00266.
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