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Gürsoy G, Barutçuoğlu M, Sivrikoz ON, Gökalp S, Vatansever S. The Role of Transforming Growth Factor Beta and Smad Receptors in Determining Prognosis in High-Grade Primary Brain Tumors: Glioblastoma Multiforme. Arquivos Brasileiros de Neurocirurgia: Brazilian Neurosurgery 2022. [DOI: 10.1055/s-0042-1743555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Abstract
Introduction High-grade primary brain tumors cause serious morbidity and mortality. This study aimed to investigate the role of transforming growth factor beta (TGF-β) and suppressor of mothers against decapentaplegic (Smad) receptors in high-grade primary brain tumors.
Material and Method Thirteen patients with a pathological diagnosis of glioblastoma multiforme were included in the study. Pathological preparations of each patient were analyzed retrospectively in histochemistry and immunohistochemistry laboratories. Transforming growth factor beta 1, TGF-β2, TGF-β3, Smad 1/2/3, Smad 6, and Smad 7 stainings were evaluated, and the immunoreactivity densities were examined.
Result We found out an increase in the expression of TGF-β1 and TGF-β3 protein. Regarding the inhibitin receptors, Smad 6 showed much more expression than Smad 7. Thus, we found that Smad 6 has a protective effect and role in the tissue. Immunhistochemically, TGF-β family stains, which are activated by types I-and -II receptors, and the stainless staining of the Smad family might also be showing that the TGF-β family is taking action with a secondary pathway other than the Smad family.
Conclusion In addition to Smad family receptors, Shc-GBR2, SARA, and Ras-Erk1/2 receptors should be investigated in future research. After that, the prognosis, diagnosis, and patient-based chemotherapy strategies for the treatment of glioblastoma multiforme may take a more prominent role.
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Affiliation(s)
- Güven Gürsoy
- Department of Neurosurgery, Muğla Training and Research Hospital, Muğla, Turkey
| | - Mustafa Barutçuoğlu
- Department of Neurosurgery, Faculty of Medicine, Manisa Celal Bayar University, Manisa, Turkey
| | - Oya Nermin Sivrikoz
- Department of Pathology, Zübeyde Hanım Training and Research Hospital, Başkent University, İzmir, Turkey
| | - Sevtap Gökalp
- Department of Histology and Embryology, Maltepe University, İstanbul, Turkey
| | - Seda Vatansever
- Department of Histology and Embryology, Faculty of Medicine, Manisa Celal Bayar University, Manisa, Turkey
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Dogan I, Gürbüz M, Paksoy N, Khanmamadov N, Vatansever S, Saip P, Demirkazik A, Aydiner A. 19P Predictors of osimertinib response at second-line treatment in EGFR mutant non-small cell lung cancer patients with acquired T790M resistance mutation. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.2015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Dogan I, Gürbüz M, Paksoy N, Ferhatoğlu F, Vatansever S, Saip P, Demirkazik A, Aydiner A. 155P Predictors of treatment response in ALK-positive metastatic non-small cell lung cancer. J Thorac Oncol 2021. [DOI: 10.1016/s1556-0864(21)01997-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ulkumen B, Batir MB, Artunc Ulkumen B, Pala HG, Vatansever S, Cam S. Role of VPAC1 anD VPAC2 receptors in the etiology of pregnancy rhinitis: an experimental study in rats. Braz J Otorhinolaryngol 2020; 88:505-510. [PMID: 32798199 PMCID: PMC9422359 DOI: 10.1016/j.bjorl.2020.06.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 06/20/2020] [Accepted: 06/28/2020] [Indexed: 12/11/2022] Open
Abstract
Introduction Pregnancy rhinitis is a common sex hormone-related otorhinolaryngological disorder. There are some epidemiological and physiological studies on pregnancy rhinitis, but histopathological and biomolecular changes have not been studied thoroughly. Objectives The receptors VPAC1 and VPAC2 are known for their roles in allergic rhinitis. On the other hand, activation of subclinical allergy has been suggested in the pathophysiology of pregnancy rhinitis. Therefore, we aimed to compare the physiological and gestational pattern of VPAC1 and VPAC2 expression in rat nasal mucosa. Methods Twenty adult Wister albino female rats were enrolled into the study. Two groups constituted as 10 control (group A) and 10 pregnant (group B) rats. They were fed ad libitum and sheltered at room temperature (22°±2 °C). The rats were sacrificed at the 20th day of gestation by intraperitoneal injection of 400 mg/kg Na-pentobarbitone. Then, 10 − 15 mL of blood was taken, and samples were reserved for the detection of serum estradiol and progesterone levels by ELISA test. The nasal septum was resected and divided in half for immunohistochemical analyses and real time polymerase chain reaction testing of VPAC1 and VPAC2. Results VPAC1 and VPAC2 were found to be in all layers of septal specimens, but the immunostaining of surface epithelium was more distinct in specimens of both groups. We demonstrated higher overall staining intensity in the pregnant group. PCR revealed significant increase in expression of VPAC1 (p = 0.023) and VPAC2 (p = 0.021) in pregnant group when compared with control group. In addition, we demonstrated upregulatory effect of estradiol and progesterone on the vasoactive intestinal peptide receptor expression. Conclusions Gestational up-regulation of nasal VPAC1 and VPAC2 was shown both by PCR and immunohistochemical analysis. These findings support the hypothesis that PR is caused by the activation of subclinical allergy that is present before pregnancy.
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Becer E, Soykut G, Kabadayi H, Mammadov E, ÇaliŞ İ, Vatansever S. Obtaining Stem Cell Spheroids from Foreskin Tissue and the Effect of Corchorus olitorius L. on Spheroid Proliferation. Turk J Pharm Sci 2020; 17:265-270. [PMID: 32636703 DOI: 10.4274/tjps.galenos.2019.05658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 03/07/2019] [Indexed: 12/01/2022]
Abstract
Objectives Mesenchymal stem cells are self-renewing stem cells. The human foreskin has potential to be used as a source of stem cells. The aim of the study was to obtain spheroid formation of human foreskin cells (hnFSSCs) isolated from newborn human foreskin tissue. In addition, the apoptotic and proliferative effects of a traditional plant, Corchorus olitorius L. (C. olitorius), on hnFSSC spheroids were investigated. Materials and Methods After a routine circumcision procedure the cells were isolated and cultured in suitable medium. The plant leaves was extracted with ethanol and their composition was analyzed by liquid chromatography coupled with mass spectrometry (LC-MS/MS). The foreskin stem cells were characterized immunocytochemically by CD45, CD34, and CD90 antibodies. hnFSSC spheroids were formed using the hanging drop technique. Immunofluorescence staining was used on the obtained spheroids to determine the distribution of caspase-3 and Ki-67 after being treated with C. olitorius extract for 48 h. Results Immunostaining analysis showed that hnFSSCs were positive for CD45 and CD34 and negative for CD90. According to LC-MS/MS C. olitorius was rich in flavanols and hydrocinnamic acid derivatives. Although the spheroids obtained were loose and floating, the cells interacted with each other. Caspase-3 activity was higher in the control group than in the extract-treated group and Ki-67 was higher in the extract-treated group than in the control group, suggesting that the plant might have the capacity to increase stem cell proliferation due to its rich polyphenolic content. Conclusion The results suggest that hnFSSCs and spheroids might be used in stem cell generation, tissue repair and renewal as human foreskin tissue has potential to be used as a stem cell source. C. olitorius also increased proliferation of hnFSSCs, showing that polyphenols might increase proliferation of stem cells.
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Affiliation(s)
- Eda Becer
- Near East University Faculty of Pharmacy, Department of Biochemistry, Nicosia, North Cyprus
| | - Günsu Soykut
- Near East University Faculty of Health Sciences, Department of Nutrition and Dietetics, Nicosia, North Cyprus
| | - Hilal Kabadayi
- Manisa Celal Bayar University Faculty of Medicine, Department of Histology and Embryology, Manisa, Turkey
| | - Emil Mammadov
- Near East University, Faculty of Medicine, Department of Pediatric Surgery, Nicosia, North Cyprus
| | - İhsan ÇaliŞ
- Near East University Faculty of Pharmacy, Department of Pharmacognosy, Nicosia, North Cyprus
| | - Seda Vatansever
- Manisa Celal Bayar University Faculty of Medicine, Department of Histology and Embryology, Manisa, Turkey
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Ozturk S, Gorgun C, Gokalp S, Vatansever S, Sendemir A. Development and characterization of cancer stem cell-based tumoroids as an osteosarcoma model. Biotechnol Bioeng 2020; 117:2527-2539. [PMID: 32391924 DOI: 10.1002/bit.27381] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 03/04/2020] [Accepted: 05/07/2020] [Indexed: 12/24/2022]
Abstract
Three-dimensional (3D) cancer tumor models are becoming vital approaches for high-throughput drug screening, drug targeting, development of novel theranostic systems, and personalized medicine. Yet, it is becoming more evident that the tumor progression and metastasis is fueled by a subpopulation of stem-like cells within the tumor that are also called cancer stem cells (CSCs). This study aimed to develop a tumoroid model using CSCs. For this purpose CD133+ cells were isolated from SaOS-2 osteosarcoma cell line with magnetic-activated cell sorting. To evaluate tumoroid formation ability, the cells were incubated in different cell numbers in agar gels produced by 3D Petri Dish® method. Subsequently, CD133+ cells and CD133- cells were co-cultured to investigate CD133+ cell localization in tumoroids. The characterization of tumoroids was performed using Live&Dead staining, immunohistochemistry, and quantitative polymerase chain reaction analysis. The results showed that, CD133+ , CD133- and SaOS-2 cells were all able to form 3D tumoroids regardless of the initial cell number, but, while 72 hr were needed for CD133+ cells to self-assemble, 24 hr were enough for CD133- and SaOS-2 cells. CD133+ cells were located within tumoroids randomly with high cell viability. Finally, when compared to two-dimensional (2D) cultures, there were 5.88, 4.14, 6.95, and 1.68-fold higher messenger RNA expressions for Sox2, OCT3/4, Nanog, and Nestin, respectively, in CD133+ cells that were cultured within 3D tumoroids, showing longer maintenance of stem cell phenotype in 3D, that can allow more relevant screening and targeting efficiency in pharmaceutical testing. It was concluded that CSC-based tumoroids are propitious as 3D tumor models to fill the gap between conventional 2D in vitro culture and in vivo animal experiments for cancer research.
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Affiliation(s)
- Sukru Ozturk
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey.,Bioengineering Division, Institute for Graduate Studies in Science and Engineering, Hacettepe University, Ankara, Turkey.,Department of Biomedical Technologies, Graduate School of Natural and Applied Sciences, Ege University, Izmir, Turkey
| | - Cansu Gorgun
- Department of Biomedical Technologies, Graduate School of Natural and Applied Sciences, Ege University, Izmir, Turkey.,Department of Experimental Medicine, University of Genova, Genova, Italy
| | - Sevtap Gokalp
- Department of Histology and Embryology, Faculty of Medicine, Celal Bayar University, Manisa, Turkey.,Department of Histology and Embryology, Faculty of Medicine, Maltepe University, Istanbul, Turkey
| | - Seda Vatansever
- Department of Histology and Embryology, Faculty of Medicine, Celal Bayar University, Manisa, Turkey.,Research Center of Experimental Health Sciences (DESAM), Near East University, Mersin, Turkey
| | - Aylin Sendemir
- Department of Biomedical Technologies, Graduate School of Natural and Applied Sciences, Ege University, Izmir, Turkey.,Department of Bioengineering, Faculty of Engineering, Ege University, Izmir, Turkey
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Ulkumen B, Artunc Ulkumen B, Batir MB, Cam S, Vatansever S. The Role of TREK-1 and AQP5 in Gonadocorticoid-Related Voice Disorders. J Voice 2020; 36:150-155. [PMID: 32439217 DOI: 10.1016/j.jvoice.2020.04.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 04/22/2020] [Accepted: 04/23/2020] [Indexed: 10/24/2022]
Abstract
OBJECTIVES TWIK-related potassium channel-1 (TREK-1) and Aquaporin 5 (AQP5) are involved in epithelial integrity and fluid transport, respectively. In this study, we aimed to compare physiological and gestational patterns of TREK-1 and AQP5 location and expression in rat larynx. Our secondary objective was to reveal the effect of estradiol (E2) and progesterone (PG) on these two biomolecules. METHODS This study was conducted on 20 Wister albino female rats which were assigned as control (group A) and pregnant group (group B). The rats were sacrificed at 20th day of pregnancy. Blood was obtained directly from the ventricle for detection of serum E2 and PG levels. Larynx was resected for immunohistochemical analyses and real-time polymerase chain reaction testing for detection of TREK-1 and AQP5 staining and expression, respectively. RESULTS Relative TREK-1 (P = 0.035) and AQP5 (P = 0.019) expression was found to be significantly high in group B when compared with group A. We found positive correlation between serum E2 levels and both biomolecules (TREK-1; P = 0.018, AQP5; P = 0.016). We also found positive correlation between serum PG levels and both biomolecules (TREK-1; P = 0.001, AQP5; P = 0.019). TREK-1 immunostaining was found to be higher in surface epithelium and lamina propria of vocal cord mucosa. AQP5 was particularly found to be located in basement membrane and adjacent superficial lamina propria. We revealed the physiological and gestational pattern of laryngeal TREK-1 and AQP5 expression for the first time. Gestational expression of both TREK-1 and AQP5 was found to be increased. Stimulatory effect of E2 and PG on laryngeal TREK-1 and AQP5 expression was also revealed. CONCLUSIONS We revealed upregulatory effect of E2 and PG on laryngeal TREK-1 and AQP5 expression. Based on this finding, it can be suggested that TREK-1 and AQP5 play role in biomolecular processes leading gonadocorticoid-related voice changes.
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Affiliation(s)
- Burak Ulkumen
- Department of Otorhinolaryngology-Head Neck Surgery, Faculty of Medicine, Manisa Celal Bayar University, Manisa, Turkey.
| | - Burcu Artunc Ulkumen
- Department of Obstetrics and Gynecology, Faculty of Medicine, Manisa Celal Bayar University, Manisa, Turkey
| | - Muhammet Burak Batir
- Department of Biology, Faculty of Science and Letters, Manisa Celal Bayar University, Manisa, Turkey
| | - Sirri Cam
- Department of Medical Genetics, Faculty of Medicine, Manisa Celal Bayar University, Manisa, Turkey
| | - Seda Vatansever
- Department of Histology-Embryology, Faculty of Medicine, Manisa Celal Bayar University, Manisa, Turkey; Experimental Research Center of Health (DESAM), Near East University, Mersin, Turkey
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Ulkumen B, Artunc Ulkumen B, Batir MB, Pala HG, Vatansever S, Cam S. Impact of Pregnancy and Glucocorticoid Treatment on NF-κB and MUC5AC in Mucosa of Rat Larynx. J Voice 2019; 35:342-348. [PMID: 31806275 DOI: 10.1016/j.jvoice.2019.11.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 11/12/2019] [Accepted: 11/13/2019] [Indexed: 10/25/2022]
Abstract
OBJECTIVE The aim of this study is to reveal physiological expression and distribution of nuclear factor-kappa B (NF-κB) and MUC 5 subtype AC (MUC5AC) in rat laryngeal mucosa and to find out the effect of pregnancy and glucocorticoid treatment on these biomolecules. METHODS This animal experiment was done in Experimental Animals Research and Application Center of Manisa Celal Bayar University in accordance with the accepted policy on the use of animals. A total of 30 young, adult Wister albino female rats were randomized into a control group (group A), a pregnant group (group B), and a steroid administered group (group C). Sacrification was done by injection of sodium-pentobarbitone (400 mg/kg) solution via intraperitoneal route in all groups. Serum estradiole (E2) and progesterone (PG) were determined by enzyme-linked immunosorbent assay. The relative expression and distribution of NF-κB and MUC5AC in laryngeal mucosa was studied both by immunohistochemistry (IHC) and polymerase chain reaction testing. Expression and immunohistochemical localization of NF-κB and MUC5AC was evaluated by light microscopy (Olympus BX41). In statistical analyses; relative expression of NF-κB and MUC5AC were compared on group basis. The effect of E2 and PG levels on these biomolecules was also evaluated. RESULTS NF-κB was found to be significantly low both in group B (P < 0.05) and C (P < 0.001) when compared with group A, while MUC5AC was found to be significantly high both in group B (P < 0.05) and group C (P < 0.05) when compared with group A. Concerning IHC; NF-κB was found to be expressed in epithelium and lamina propria. MUC5AC was found to be expressed particularly in the epithelial layer in all groups. Statistically significant negative correlation between PG and NF-κB expression (P = 0.048), but no correlation between PG and MUC5AC expression (P = 0.487) were revealed. On the other hand, no correlation was found between E2 and the expression of relevant biomolecules (NF-κB [P = 0.270], MUC5AC [P = 0.829]). We also did found a significant negative correlation between the expression of NF-κB and MUC5AC (P = 0.031). CONCLUSIONS In this study, the physiological expression of NF-κB and MUC5AC in rat laryngeal mucosa was shown for the first time both by polymerase chain reaction and IHC. The impact of pregnancy and glucocorticoid treatment on the expression and distribution of these biomolecules was also revealed. The expression of NF-κB was found to be decreased while the expression of MUC5AC was found to be increased both by pregnancy and glucocorticoid treatment. The inhibitory effect of serum PG on NF-κB expression in rat laryngeal mucosa was also shown for the first time. The expression of MUC5AC was found to be increased both in pregnant and glucocorticoid administered group. Negative correlation between NF-κB and MUC5AC expression was also revealed in rat larynx for the first time. These findings may partially unclose the histochemical background of voice changes caused by pregnancy and as well as by glucocorticoid treatment.
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Affiliation(s)
- Burak Ulkumen
- Manisa Celal Bayar University, Faculty of Medicine, Department of Otorhinolaryngology-Head Neck Surgery, Manisa, Turkey.
| | - Burcu Artunc Ulkumen
- Manisa Celal Bayar University, Faculty of Medicine, Department of Obstetrics and Gynecology, Manisa, Turkey
| | - Muhammet Burak Batir
- Manisa Celal Bayar University, Faculty of Medicine, Department of Medical Genetics, Manisa, Turkey
| | - Halil Gursoy Pala
- The University of Health Sciences Tepecik Training and Research Hospital, Department of Obstetrics and Gynecology, İzmir, Turkey
| | - Seda Vatansever
- Manisa Celal Bayar University, Faculty of Medicine, Department of Histology-Embryology, Manisa, Turkey and Near East University, Experimental Research Center of Health (DESAM), Mersin, Turkey
| | - Sirri Cam
- Manisa Celal Bayar University, Faculty of Medicine, Department of Medical Genetics, Manisa, Turkey
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Erdag E, Mulazim Y, Becer E, Vatansever S, Kesanli B. Studies on new 2(3H)-benzoxazolone derivatives: synthesis, characterization and cytotoxic effects. J Biotechnol 2019. [DOI: 10.1016/j.jbiotec.2019.05.285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Karaman S, Dagoglu R, Kaval G, Buyuk M, Yanar H, Keskin M, Vatansever S, Karabulut S, Gulluoglu M, Kizir A, Oral E. Can Neoadjuvant Rectal Cancer (NAR) Score As A Survival Predictor after Short Course Radiotherapy? Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.2137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Kasap B, Kasap Ş, Vatansever S, Kendirci R, Yılmaz O, Çalışır M, Edgünlü T, Akın MN. Effects of adipose and bone marrow-derived mesenchymal stem cells on vaginal atrophy in a rat menopause model. Gene 2019; 711:143937. [PMID: 31228541 DOI: 10.1016/j.gene.2019.06.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 06/03/2019] [Accepted: 06/13/2019] [Indexed: 01/10/2023]
Abstract
BACKGROUND & OBJECTIVES Vaginal atrophy is characterized by thinning of vaginal epithelial layers and decreased local blood flow. We aimed to evaluate the regenerative effects of Adipose derived mesenchymal stem cells (ADMSC) and Bone marrow derived mesenchymal stem cells (BMDSC) on vaginal atrophy in rat menopause model. MATERIALS AND METHODS Rats were randomly divided into 4 (four) groups: sham, control, ADMSC, BMDSC. Vaginal epithelial thickness, structure of the lamina propria, blood vessels in the lamina propria, collagen deposition, and muscle structure were evaluated. Anti ER α, VEGF, VEGFR 1, Bax and bcl-2 antibodies were analyzed. Beta actin gene was used as endogenous control. Genetical differences among the groups were compared by using Kruskal Wallis and Mann Whitney U test. p < 0.05 was regarded as statistically significant. RESULTS Epithelial thickness of ADMSC group was higher than control group, but less than sham group Epithelial thickness of BMDSC group was less than sham group. Lamina propria and muscle tissue of ADMSC and BMDSC groups were found to be similar to sham group. VEGFR-1, VEGF, Bax and ER-α staining levels were higher in ADMSC and BMDSC groups than control group. ADMSC group stained stronger with VEGFR-1 and VEGF than BMDSC group. Bcl-2 staining level was increased in ADMSC applied group. No statistically significant difference was detected in Bax and Bcl-2 genes and Bax-/Bcl-2 ratio. CONCLUSIONS Although genetic expression might have ended and could not be significantly demonstrated, histological and immunohistochemical results favor ADMSC application in vaginal atrophy rather than BMDSC.
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Affiliation(s)
- Burcu Kasap
- Department of Obstetrics and Gynecology, School of Medicine, Muğla Sıtkı Koçman University, Mugla 48000, Turkey.
| | - Şükrü Kasap
- Department of Plastic, Reconstructive and Aesthetic Surgery, School of Medicine, Muğla Sıtkı Koçman University, Mugla 48000, Turkey
| | - Seda Vatansever
- Department of Histology-Embryology, School of Medicine, Celal Bayar University, Manisa, Turkey; Experimental Health Science Research Center, Near East University, Nicoisa, Cyprus
| | - Remziye Kendirci
- Department of Histology-Embryology, School of Medicine, Celal Bayar University, Manisa, Turkey
| | - Osman Yılmaz
- Department of Laboratory Animal Science, School of Medicine, Dokuz Eylul University, İzmir, Turkey
| | - Meryem Çalışır
- Department of Laboratory Animal Science, School of Medicine, Dokuz Eylul University, İzmir, Turkey
| | - Tuba Edgünlü
- Department of Medical Biology, School of Medicine, Muğla Sıtkı Koçman University, Mugla, Turkey
| | - Melike Nur Akın
- Department of Obstetrics and Gynecology, School of Medicine, Muğla Sıtkı Koçman University, Mugla 48000, Turkey
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Şimşek F, İnan S, Müftüoğlu S, Özbilgin K, Vatansever S, Tuğlu İ. Meme kanseri hücre hatlarında propranolol ve paklitakselin anjiyogenez üzerine etkisi. Cukurova Medical Journal 2019. [DOI: 10.17826/cumj.418346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Becer E, Hanoğlu DY, Kabadayı H, Hanoğlu A, Vatansever S, Yavuz DÖ, Meriçli F, Meriçli AH. The effect of Colchicum pusillum in human colon cancer cells via Wnt/β-catenin pathway. Gene 2018; 686:213-219. [PMID: 30458290 DOI: 10.1016/j.gene.2018.11.047] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Revised: 10/29/2018] [Accepted: 11/15/2018] [Indexed: 10/27/2022]
Abstract
OBJECTIVE Colchicum pusillum belongs to the family Colchicaceae that particularly rich in tropolonic alkaloids. The aim of this study was to investigate the cytotoxicity and in vitro anticancer activity of Colchicum pusillum ethanolic extract on Colo-320 primer and Colo-741 metastatic colon adenocarcinoma cell lines. MATERIALS AND METHODS Colchicum pusillum was collected and extracted with ethanol. Different concentrations of Colchicum pusillum extract were incubated for 24 h and 48 h with Colo-320 and Colo-741 cells. Cell growth and cytotoxicity were measured by 3‑(4,5‑dimethylthiazol‑2‑yl)‑2,5‑diphenyltetrazolium bromide (MTT) assays. Anticancer and antiproliferative activities of Colchicum pusillum were investigated by immunocytochemistry using antibodies directed against to β-catenin, Ki-67, LGR-5 Ki-67, DKK1, Frizzled-4, Wnt4, Wnt7a and caspase3 in Colo-741 cells. RESULTS All concentrations of Colchicum pusillum extract had toxic effect in Colo-320 cells. Because of this, we used Colchicum pusillum extract at 20 μg/ml for evaluate anticancer activities only in Colo-741 cells. As a result of immunohistochemical staining, β-catenin, LGR-5 and caspase-3 immunoreactivities were significantly increased while Wnt7a immunostaining intensity was decreased in Colo-741 cells. Conclusion We conclude that Colchicum pusillum extract increased β-catenin and LGR-5 via Wnt/β-catenin pathway in colon cancer cells. Interestingly, it decreased other signaling molecule, Wnt7a which is assumed to play protective role during carcinogenesis. Also, it increased significantly caspase-3 immunoreactivity showing that apoptotic pathways were triggered.
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Affiliation(s)
- Eda Becer
- Department of Biochemistry, Faculty of Pharmacy, Near East University, Nicosia, Cyprus; Experimental Health Research Center of Health Sciences, Near East University, Nicosia, Cyprus.
| | - Duygu Yiğit Hanoğlu
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Near East University, Nicosia, Cyprus
| | - Hilal Kabadayı
- Department of Histology and Embryology, Faculty of Medicine, Celal Bayar University, Manisa, Turkey
| | - Azmi Hanoğlu
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Near East University, Nicosia, Cyprus
| | - Seda Vatansever
- Experimental Health Research Center of Health Sciences, Near East University, Nicosia, Cyprus; Department of Histology and Embryology, Faculty of Medicine, Celal Bayar University, Manisa, Turkey
| | - Dudu Özkum Yavuz
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Near East University, Nicosia, Cyprus
| | - Filiz Meriçli
- Department of Pharmacognosy-Phytotherapy, Faculty of Pharmacy, Near East University, Nicosia, Cyprus
| | - Ali Hikmet Meriçli
- Department of Pharmacognosy-Phytotherapy, Faculty of Pharmacy, Near East University, Nicosia, Cyprus
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Mericli F, Becer E, Kabadayı H, Hanoglu A, Yigit Hanoglu D, Ozkum Yavuz D, Ozek T, Vatansever S. Fatty acid composition and anticancer activity in colon carcinoma cell lines of Prunus dulcis seed oil. Pharm Biol 2017; 55:1239-1248. [PMID: 28262033 PMCID: PMC6130748 DOI: 10.1080/13880209.2017.1296003] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Accepted: 02/13/2017] [Indexed: 05/13/2023]
Abstract
CONTEXT Almond oil is used in traditional and complementary therapies for its numerous health benefits due to high unsaturated fatty acids content. OBJECTIVES This study investigated the composition and in vitro anticancer activity of almond oil from Northern Cyprus and compared with almond oil from Turkey. MATERIALS AND METHODS Almond oil from Northern Cyprus was obtained by supercritical CO2 extraction and analyzed by GC-MS. Almond oil of Turkey was provided from Turkish pharmacies. Different concentrations of almond oils were incubated for 24 and 48 h with Colo-320 and Colo-741 cells. Cell growth and cytotoxicity were measured by MTT assays. Anticancer and antiprolifetarive activities of almond oils were investigated by immunocytochemistry using antibodies directed against to BMP-2, β-catenin, Ki-67, LGR-5 and Jagged 1. RESULTS Oleic acid (77.8%; 75.3%), linoleic acid (13.5%; 15.8%), palmitic acid (7.4%; 6.3%), were determined as the major compounds of almond oil from Northern Cyprus and Turkey, respectively. In the MTT assay, both almond oils were found to be active against Colo-320 and Colo-741 cells with 1:1 dilution for both 24 h and 48 h. As a result of immunohistochemical staining, while both almond oils exhibited significant antiproliferative and anticancer activity, these activities were more similar in Colo-320 cells which were treated with Northern Cyprus almond oil. DISCUSSION AND CONCLUSION Almond oil from Northern Cyprus and Turkey may have anticancer and antiproliferative effects on colon cancer cells through molecular signalling pathways and, thus, they could be potential novel therapeutic agents.
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Affiliation(s)
- Filiz Mericli
- Department of Pharmacognosy-Phytotherapy, Faculty of Pharmacy, Near East University, Mersin, Turkey
| | - Eda Becer
- Department of Biochemistry, Faculty of Pharmacy, Near East University, Mersin, Turkey
| | - Hilal Kabadayı
- Department of Histology and Embryology, Faculty of Medicine, Celal Bayar University, Manisa, Turkey
| | - Azmi Hanoglu
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Near East University, Mersin, Turkey
| | - Duygu Yigit Hanoglu
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Near East University, Mersin, Turkey
| | - Dudu Ozkum Yavuz
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Near East University, Mersin, Turkey
| | - Temel Ozek
- Department of Pharmacognosy, Faculty of Pharmacy, Anadolu University, Eskisehir, Turkey
| | - Seda Vatansever
- Department of Histology and Embryology, Faculty of Medicine, Celal Bayar University, Manisa, Turkey
- Experimental Health Research Center of Health Sciences, Near East University, Mersin, Turkey
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Hosseini Mansoub N, Gürdal M, Karadadaş E, Kabadayi H, Vatansever S, Ercan G. The role of PRP and adipose tissue-derived keratinocytes on burn wound healing in diabetic rats. ACTA ACUST UNITED AC 2017; 8:5-12. [PMID: 29713597 PMCID: PMC5915708 DOI: 10.15171/bi.2018.02] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 10/30/2017] [Accepted: 11/08/2017] [Indexed: 02/01/2023]
Abstract
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Introduction:
Diabetic burn wounds and ulcers are significant complications of diabetic patients. The aim of this study is to investigate the use of platelet rich-plasma (PRP) and/or keratinocyte-like cells (KLCs) in diabetic thermal wound rat model and to evaluate EGF, FGF-2, TGF-β1, COL1α2, MCP-1 and VEGF-α as wound healing markers at gene expression level.
Method:
In this study, we used adipose tissue as the source of mesenchymal stem cells (MSCs) and differentiated MSCs into KLCs. KLCs were characterized and transferred to the burn areas on the dorsum of streptozotocine (STZ)-induced diabetic rats. We prepared PRP from rat blood and evaluated its effect alone or in combination with KLCs. On 3rd, 7th, 10th and 14th days after treatment, wound areas were measured and biopsy samples were excised from the wound areas of the KLCs and/or PRP-treated and untreated diabetic rats to analyze gene expression levels of wound healing markers by qPCR.
Results:
We observed that, wound contraction started earlier in the PRP and/or KLCs-treated groups in comparison to the control group. However, PRP and KLCs when applied in combination showed additive affect in wound healing. In all groups treated with KLCs and/or PRP, the gene expression levels of evaluated growth factors and COL1α2 increased, while MCP-1 levels decreased when compared to the untreated diabetic rats. In addition, the most prominent difference in qPCR results belongs to combined PRP and KLCs-treated group.
Conclusion:
We demonstrated that applying PRP and KLCs in combination has a greater potential for treatment of diabetic burn wounds.
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Affiliation(s)
- Navid Hosseini Mansoub
- Department of Medical Biochemistry, Faculty of Medicine, Ege University, Izmir, 35100, Turkey
| | - Mehmet Gürdal
- Department of Medical Biochemistry, Faculty of Medicine, Ege University, Izmir, 35100, Turkey
| | - Elif Karadadaş
- Department of Medical Biochemistry, Faculty of Medicine, Ege University, Izmir, 35100, Turkey
| | - Hilal Kabadayi
- Department of Histology and Embryology, Faculty of Medicine, Celal Bayar University, Manisa, 45200, Turkey
| | - Seda Vatansever
- Department of Histology and Embryology, Faculty of Medicine, Celal Bayar University, Manisa, 45200, Turkey.,Experimental Health Sciences Research Center, Near East University, Mersin, 33010, Turkey
| | - Gulinnaz Ercan
- Department of Medical Biochemistry, Faculty of Medicine, Ege University, Izmir, 35100, Turkey.,Department of Stem Cell, Institute of Health Sciences, Ege University, Izmir, 35100, Turkey
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Karlitepe A, Kabadayi H, Vatansever S, Gurdal M, Gunduz C, Ercan G. Anti-cancer efficiency of natural killer cells differentiated from human adipose tissue-derived mesenchymal stem cells and transfected with miRNA150. Exp Oncol 2017; 39:212-218. [PMID: 28967637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
AIM The aim of this study is to investigate the effects of miR150 transfection on NK-like cells differentiated from adipose tissue derived mesenchymal stem cells (AD-MSCs). METHODS NK-like cells were differentiated from AD-MSCs and activated by miR150 transfection. Transfected/non-transfected NK-like cells were characterized by immunohistochemical and RT-PCR analyzes. Apoptotic efficiency of the transfected/non-transfected NK-like cells on pancreatic cancer cells PANC1 were determined by TUNEL and RT-PCR. RESULTS In miR150-transfected cells, the increased expression of NK cell-specific genes such as GKMB, KIR2DL2, CD16, CD56, NKG2D, NKp46 and increased immunoreactivity of NK cell-specific surface marker CD314 (NKG2D) were evident. TUNEL assays showed that NK-like cells with/without transfection induced apoptosis in PANC1 cells in the same manner. The decrease in oncogene expression and the increase in the tumor suppressor gene expression in PANC1 cells upon co-culture with NK-like cells differentiated from AD-MSCs were more prominent following miRNA150 transfection. CONCLUSION It was shown in vitro that NK-like cells could be obtained by differentiation from AD-MSCs and their efficiency could be increased via miR150 transfection. The results are encouraging for further clinical studies in improvement of immunotherapeutic approaches for cancer therapy.
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Affiliation(s)
- A Karlitepe
- Department of Medical Biochemistry, Ege University Medical School, Izmir 35100, Turkey
| | - H Kabadayi
- Department of Histology and Embryology, Celal Bayar University Medical School, Manisa 45030, Turkey
| | - S Vatansever
- Experimental Health Sciences Research Center, Near East University, Mersin 33010, Turkey
| | - M Gurdal
- Department of Medical Biochemistry, Ege University Medical School, Izmir 35100, Turkey
| | - C Gunduz
- Department of Medical Biology, Ege University School of Medicine, Izmir 35100, Turkey
| | - G Ercan
- Department of Stem Cell, Ege University Institute of Health Sciences, Izmir 35100, Turkey
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Meriçli F, Becer E, Hanoglu A, Hanoglu DY, Yavuz DO, Vatansever S, Meriçli AH. Cytotoxic activity of “ Colchicum pusillum ” extract in human colon carcinoma cell lines. J Biotechnol 2017. [DOI: 10.1016/j.jbiotec.2017.06.1127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Ozbilgin K, Kahraman B, Atay C, Vatansever S, Uluer ET, Özçakır T. Role of Proopiomelanocortin in Preventing Miscarriage. J Reprod Med 2017; 62:173-178. [PMID: 30230786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To compare the distribution of proopiomelanocortin (POMC) in decidua and placenta samples from missed abortion and voluntary termination cases in order to research the effects in the etiology of missed abortion. STUDY DESIGN Decidual materials were collected from patients who were diagnosed with missed abortion (n=19) and legal voluntary termination cases (n=15) under 10 gestational weeks. Materials were divided into 2 groups for examination. For all samples, POMC primary antibody was performed by immunohistochemical staining. The number of stained cells was calculated by using the H-score technique. RESULTS In the missed abortion group the mean age was 28.7 (18–41), and in the control group the mean age was 27.5 (21–37). POMC immunoreactivity was determined to be lower in the parenchyma and placenta of the missed abortion group than those of the control group. POMC immunoreactivities were found to be higher in both the syncytiotrophoblast and cytotrophoblast cells of the missed abortion group than those of the control group (p<0.005). CONCLUSION POMC has become a paradigmatic polypeptide precursor and has a role in the parturition process. Local production of POMC in placenta and decidua may influence pregnancy and may have a role in missed abortion pathogenesis.
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Kılıç S, Özkaya E, Baykal C, Vatansever S. Vemurafenib-induced toxic epidermal necrolysis: Is it an emerging side-effect of the drug? J Eur Acad Dermatol Venereol 2017; 31:e354-e355. [PMID: 28150343 DOI: 10.1111/jdv.14150] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- S Kılıç
- Department of Dermatology and Venereology, Istanbul Medical Faculty, Istanbul University, 34093, Çapa-Istanbul, Turkey
| | - E Özkaya
- Department of Dermatology and Venereology, Istanbul Medical Faculty, Istanbul University, 34093, Çapa-Istanbul, Turkey
| | - C Baykal
- Department of Dermatology and Venereology, Istanbul Medical Faculty, Istanbul University, 34093, Çapa-Istanbul, Turkey
| | - S Vatansever
- Department of Medical Oncology, Institute of Oncology, Istanbul University, 34093, Çapa-Istanbul, Turkey
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Gorgun C, Ozturk S, Gokalp S, Vatansever S, Gurhan SD, Urkmez AS. Synergistic role of three dimensional niche and hypoxia on conservation of cancer stem cell phenotype. Int J Biol Macromol 2016; 90:20-6. [DOI: 10.1016/j.ijbiomac.2015.12.053] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2015] [Revised: 12/05/2015] [Accepted: 12/15/2015] [Indexed: 01/16/2023]
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Özdal-Kurt F, Şen B, Tuğlu I, Vatansever S, Türk B, Deliloğlu-Gürhan I. Attachment and growth of dental pulp stem cells on dentin in presence of extra calcium. Arch Oral Biol 2016; 68:131-41. [DOI: 10.1016/j.archoralbio.2016.04.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 11/29/2015] [Accepted: 04/26/2016] [Indexed: 12/22/2022]
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22
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Argun Baris S, Vural C, Yaprak B, Onyilmaz T, Tuncel D, Vatansever S, Isken T, Basyigit I, Boyaci H, Yildiz F. The effects of sildenafil on smoke induced lung inflammation in rats. Malays J Pathol 2016; 38:39-44. [PMID: 27126663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE Sildenafil is a selective and potent inhibitor of cyclic guanosine monophosphate specific phosphodiesterase-5 and has anti-inflammatory effects. The aim of the study was to evaluate the effects of sildenafil on smoke-induced lung inflammation. MATERIAL AND METHODS Twenty-nine Wistar-Albino rats were enrolled into 3 groups as control, smoker and sildenafil groups. Smoker and sildenafil groups were exposed to cigarette smoke for 2 hours per day for 8 weeks. Sildenafil 10 mg/kg/day was administered to the sildenafil group by nasogastric lavage after smoke exposure. The degree of lung inflammation was scored histopathologically for each group. RESULTS The inflammation score was 7.25±0.93 in the control group, 8.18±1.21 in the smoker group and 7.08±1.66 in the sildenafil group. There was a non-significant decrease of inflammation score in sildenafil group with respect to control or smoker groups. While there was no significant difference of oedema, hyperemia, hemorrhage and mononuclear cell infiltration scores among the groups, it was found that the thickness of interalveolar septum and alveolar distortion was decreased in sildenafil group. However this decrease was not statistically significant. CONCLUSION This study suggests that sildenafil might reduce smoke-induced inflammation in rat lungs. Future studies are needed in order to investigate the clinical effectiveness of this finding in smoking related lung diseases.
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Affiliation(s)
- S Argun Baris
- Kocaeli University School of Medicine, Department of Pulmonary Diseases, Umuttepe, Kocaeli, Turkey.
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Demirel G, Yilmaz A, Vatansever B, Karavar H, Gundogdu S, Vatansever S, Turanli G, Tastekin A. A VERY RARE CAUSE OF APNEA IN THE NEONATAL PERIOD: JOUBERT SYNDROME. Genet Couns 2016; 27:425-428. [PMID: 30204974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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24
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Ozbilgin K, Kahraman B, Turan A, Atay C, Vatansever S, İnan Sİ, Özçakır TÖ. The expression of Forkhead transcription factors in decidua and placenta in patients with missed abortion. CLIN EXP OBSTET GYN 2015. [DOI: 10.12891/ceog1911.2015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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25
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Eskicioğlu F, Turan GA, Sivrikoz ON, Cengiz H, Zafer A, Akan Z, Sahin N, Yilmaz O, Yeşil H, Vatansever S. Montelukast is effective in preventing of ovarian hyperstimulation syndrome; an experimental study. Ginekol Pol 2015; 86:566-573. [PMID: 26492704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
Abstract
OBJECTIVES To determine the efficacy of montelukast in comparison with cabergoline in the prevention of ovarian hyperstimulation syndrome (OHSS) in rats. MATERIAL AND METHODS An experimental OHSS model was formed in 35 female Wistar rats. Rats (22 days old) were randomized into 5 groups, each containing 7 animals. The control group received no therapy; the mild OHSS group was administered pregnant mare serum gonadotropin (PMSG) 10 IU for 4 days, hCG 10 IU on the 5th day; the severe OHSS group received PMSG 10 IU for 4 days, hCG 30 IU on the 5th day The montelukast group: received montelukast 10 mg/kg/day and the cabergoline group was administered cabergollne 100 microg/kg/day via oral gavage for 6 days (days 22-27), in addition to those of severe OHSS. All groups were sacrificed on 28th day Body weight, ovarian diameter and weight, vascular permeability vascular endothelial growth factor (VEGF), semiquantitative VEGF receptor-1, and VEGF receptor-2 (VEGFR-2) immunohistochemistry were evaluated. RESULTS Ovarian diameter and VEGF expression were significantly lower in the montelukast and cabergoline groups than in the severe OHSS group. While montelukast was more effective in limiting vascular permeability in the severe OHSS, cabergoline was superior to montelukast with respect to the limiting effect on increased body weight and VEGFR-2 expression. CONCLUSIONS The VEGF/VEGFR-2 interaction plays an important role in OHSS pathogenesis. Montelukast limits VEGF expression, and cabergoline reduces both VEGF and VEGFR-2 expressions; they are both effective therapies for the prevention of severe OHSS.
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Ozbilgin K, Turan A, Kahraman B, Atay C, Vatansever S, Uluer ET, Ozçakir T. Distribution of furin, TNF-α, and TGF-β2 in the endometrium of missed abortion and voluntary first trimester termination cases. Anal Quant Cytopathol Histpathol 2015; 37:123-133. [PMID: 26065233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To identify the role of furin, TNF-α, and TGF-β2 in human missed abortion pathogenesis. STUDY DESIGN Decidual materials were collected from patients diagnosed with a missed abortion (n = 10) (missed abortion group) and from legal voluntary termination cases at < 10 gestational weeks (n = 10) (normal pregnancy group). Tissue samples were collected from each group by dilation and curettage under mask anesthesia. For all tissue samples,furin, TNF-α, and TGF-β2 primary antibodies were performed by immunohistochemical staining. The number of stained cells was evaluated by using the H-score technique. RESULTS In immunohistochemical examination, the immunoreactivities of furin, TNF-α, and TGF-β2 were found to be higher in syncytiotrophoblastic cells in the missed abortion group than in the normal pregnancy group (p < 0.005). Additionally, high immunoreactivity of TNF-α and TGF-β2 molecules was established only in cytotrophoblastic cells of missed abortions (p < 0.005) in examination at decidual cells of the missed abortion group; furin immunoreactivities were detected higher in the missed abortion group than in the control group, but TNF-α and TGF-β2 immunoreactivity were increased in number in the normal pregnancy group (p < 0.005). CONCLUSION It is considered that high levels offurin and the 2 furin-related proteins (TNF-α and TGF-β2), which play important roles in proliferation, invasion, migration, differentiation, and survival of cells, may be the reason of proceeding decidualization, placentation, and prevention from abortion, in spite of terminating thefetal life.
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Durmaz A, Mıçılı SC, Vatansever S, Gündüz C, Bağrıyanık HA, Dikmen N, Göker ENT, Tavmergen E. COMET, TUNEL, and TEM analysis of an infertile male with short tail sperm. J Turk Ger Gynecol Assoc 2015; 16:54-7. [PMID: 25788840 DOI: 10.5152/jtgga.2014.0017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Accepted: 01/28/2014] [Indexed: 11/22/2022] Open
Abstract
Male infertility is correlated with sperm morphology and sperm DNA damage, which are completely different from that of fertile individuals. An accurate sperm DNA damage analysis and ultrastructural examination of the ejaculate provide important support in the clinical evaluation. It is supposed that in the near future, the fertilization rate, pregnancy rate, and miscarriages could be predicted using the combination of these types of tests in assisted reproductive technologies (ARTs). For this purpose, we report a very rare case of an infertile man having short tail sperm. The infertile man and his wife underwent in vitro fertilization (IVF) with intracytoplasmic sperm injection (ICSI). During this process, we examined the ultrastructure of the ejaculated sperm with transmission electron microscopy (TEM) and calculated the sperm DNA damage with terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) and COMET assays. Then, we evaluated the association between sperm DNA damage and embryo quality.
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Affiliation(s)
- Ayşen Durmaz
- Family Planning Infertility Research and Treatment Center, Ege University, İzmir, Turkey
| | - Serap Cilaker Mıçılı
- Department of Histology and Embryology, Dokuz Eylül University Faculty of Medicine, İzmir, Turkey
| | - Seda Vatansever
- Department of Histology and Embryology, Celal Bayar University Faculty of Medicine, Manisa, Turkey
| | - Cumhur Gündüz
- Department of Medical Biology, Ege University Faculty of Medicine, İzmir, Turkey
| | - Hüsnü Alper Bağrıyanık
- Department of Histology and Embryology, Dokuz Eylül University Faculty of Medicine, İzmir, Turkey
| | - Nurten Dikmen
- Department of Medical Biochemistry, Çukurova University Faculty of Medicine, Adana, Turkey
| | | | - Erol Tavmergen
- Family Planning Infertility Research and Treatment Center, Ege University, İzmir, Turkey
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Özçakır TÖ, Turan M, Şimşek FŞ, Atay C, Vatansever S, Özbilgin KÖ. A comparison of the molecular distribution of proangiogenic factors in endometrium of missed abortions and of voluntary first trimester termination cases. CLIN EXP OBSTET GYN 2015. [DOI: 10.12891/ceog1774.2015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Ozbilgin K, Karaca F, Turan A, Köse C, Vatansever S, Ozcakir T. The higher heparin-binding epidermal growth factor (HB-EGF) in missed abortion. Taiwan J Obstet Gynecol 2015; 54:13-8. [DOI: 10.1016/j.tjog.2013.08.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/20/2013] [Indexed: 10/24/2022] Open
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Eskicioğlu F, Turan G, Sivrikoz O, Cengiz H, Akan Z, Şahin N, Yılmaz O, Yeşil H, Vatansever S. Montelukast is effective in preventing of ovarian hyperstimulation syndrome; an experimental study. Ginekol Pol 2015. [DOI: 10.17772/gp/59279] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Ozbilgin K, Kahraman B, Turan A, Atay C, Vatansever S, Inan S, Ozçakir T. The expression of Forkhead transcription factors in decidua and placenta in patients with missed abortion. CLIN EXP OBSTET GYN 2015; 42:510-514. [PMID: 26411222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
BACKGROUND Forkhead transcription factors 3a (FOXO3a) has pleiotropic biological functions in the female reproductive tract. FOXO3a has a function in decidualization, in placental development, and also in inhibition of apoptosis. This study aims to investigate a possible role of FOXO3a in missed abortion. MATERIALS AND METHODS Decidual and placental tissue samples were obtained from the women with unwanted pregnancy as the control group and with missed abortion as the patient group. Immunohistochemistry technique was utilized to compare FOXO3a expression of the decidual cells in uterine decidual stroma and cytotrophoblast-syncytiotrophoblast cells in placental villous stroma. Immunohistochemistry was evaluated semiquantitatively utilizing the H-score technique. Results: It was demonstrated that H-Scores of FOXO3a expression in both uterine decidual stroma were increased in the missed abortion group (255.83 +/- 12.41) than in the normal pregnancy group (133.33 +/- 17.43). It was also shown that there was no difference between non-decidual area of the endometrium of the normal pregnancy and the missed abortion group (30.33 +/- 4.32; 39.66 +/- 14.30, respectively) and placental villous stroma (13.00 +/- 1.89; 13.00 +/- 1.67, respectively). However, the immunoreactivity of cytotrophoblast and syncytiotrophoblast cells significantly increased in the missed abortion group (18.83+1.47; 322.00 +/- 6.06, respectively) than in the normal pregnancy group (11.00 +/- 1.26; 254.00 +/- 8.17, respectively) (p < 0.05). CONCLUSION These data support the hypothesis that increased FOXO3a expression in missed abortion may prevent the discharge of dead fetus to maintain decidualization, prevention of oxidative stress, immunomodulation, and inhibition of apoptosis.
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Ozçakir T, Thran MA, Simşek F, Atay C, Vatansever S, Ozbilgin K. A comparison of the molecular distribution of proangiogenic factors in endometrium of missed abortions and of voluntary first trimester termination cases. CLIN EXP OBSTET GYN 2015; 42:40-48. [PMID: 25864280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE The authors aimed to evaluate the angiogenic changes that occur in the cases with missed abortions compared with the voluntary termination of pregnancy as control group, with this controlled clinical study. MATERIALS AND METHODS The study included fifteen healthy volunteer women with unwanted pregnancy less than 10th gestational week in an academic research environment. The patients were 19 women between 6th and 11th gestational weeks diagnosed with missed abortion as the patient group. Immunohistochemistry was utilized to examine temporal and spatial expression of vascular endothelial growth factor (VEGF) and their two receptors: VEGF-R1 (Flt-1) and VEGF-R2 (Flk-1/KDR), and Trombospondin-1, eNOS, iNOS, and HIF-1α in the both deciduas and placenta of the both groups. RESULTS This study discovered the significant difference (p < 0.005) between the groups of controlled and missed abortion in the decidual and placental cell components, and has put forward that thrombospondin and iNOS have an impact on abortion through antiangiogenic effect in cases of missed abortions. CONCLUSIONS The potential role of molecules affecting angiogenesis in the etiology of missed abortion has been evaluated and the authors aimed for this to be a guide for studies on further treatments and on the prevention of the development of missed abortions.
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Ozguven AA, Yılmaz O, Taneli F, Ulman C, Vatansever S, Onag A. Protective effect of ketamine against hemorrhagic cystitis in rats receiving ifosfamide. Indian J Pharmacol 2014; 46:147-51. [PMID: 24741183 PMCID: PMC3987180 DOI: 10.4103/0253-7613.129301] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Revised: 01/27/2013] [Accepted: 01/12/2014] [Indexed: 01/08/2023] Open
Abstract
Objective: To investigate the possible protective effect of a single dose of ketamine and the synergistic effect between ketamine and 2-mercaptoethane sulfonate (mesna) against ifosfamide-induced hemorrhagic cystitis. Materials and Methods: 35 adult female wistar rats were divided into five groups and pretreated with ketamine at 10 mg/kg and/or mesna 400 mg/kg 30 minutes before intraperitoneal injection of IFS (400 mg/kg) or with saline (control group). Hemorrhagic cystitis was evaluated 24 hours after IFS injection according to bladder wet weight (BWW), and microscopic changes, i.e. edema, hemorrhage, cellular infiltration, and urothelial desquamation. The markers of oxidative damage including nitric oxide (NO) and malondialdehyde (MDA) levels and the expressions of tumor necrosis factor alpha (TNF-α), interleukin 1-beta (IL-1β), inducible nitric oxide synthase (i-NOS) and endothelial nitric oxide synthase (e-NOS) were also assayed in the bladder tissues. Results: Pretreatment with ketamine alone or ketamine in combination with mesna reduced the IFS-induced increase of BWW (58,47% and 63,33%, respectively, P < 0.05). IFS- induced microscopic alterations were also prevented by ketamine with or without mesna (P < 0.05). In addition, also statistically insignificant, the bladder tissue expressions of IL-1β were lower in ketamine and/or mesna-receiving groups (P > 0,05). The parameters of oxidative stress, the NO and the MDA contents of the bladder tissues of the study groups were not different. Conclusion: The results of the present study suggest that a single dose of ketamine pretreatment attenuates experimental IFS-induced bladder damage. It is therefore necessary to investigate ketamine locally and systematically with various dosing schedulesin order to reduce the bladder damage secondary to oxazaphosphorine-alkylating agents and these results may widen the spectrum of ketamine.
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Affiliation(s)
- Ali A Ozguven
- Department of Pediatric Oncology, Celal Bayar University, School of Medicine, Manisa, Turkey
| | - Omer Yılmaz
- Department of Pediatric Surgery, Celal Bayar University, School of Medicine, Manisa, Turkey
| | - Fatma Taneli
- Department of Biochemistry, Celal Bayar University, School of Medicine, Manisa, Turkey
| | - Cevval Ulman
- Department of Biochemistry, Celal Bayar University, School of Medicine, Manisa, Turkey
| | - Seda Vatansever
- Department of Histology and Embriology, Celal Bayar University, School of Medicine, Manisa, Turkey
| | - Ali Onag
- Department of Pediatrics, Celal Bayar University, School of Medicine, Manisa, Turkey
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Topcu I, Vatansever S, Bayram E, Var A, Cetin I, Civi M. The effects of lornoxicam on neuroprotection following diffuse traumatic brain injury in rats. Turk Neurosurg 2014; 23:764-71. [PMID: 24310460 DOI: 10.5137/1019-5149.jtn.7749-13.0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
AIM In this study, the effects of lornoxicam on the prevention of secondary brain injury via the apoptotic pathway were studied in a rat model of head injury. MATERIAL AND METHODS Thirty adult male Wistar albino rats were anesthetized, and experimental closed head trauma was induced by allowing a 450 g weight to fall two meters onto a metallic disk fixed to the intact skull. After head injury, the rats were randomly divided into two groups: Group I (n=15) rats were administered 2 mL saline intraperitoneally (controls); Group II (n=15) rats were administered 2 mL 1.3 mg kg-1 lornoxicam intraperitoneally. Brain tissue samples were divided into two pieces by interhemispheric incision for biochemical and histological analysis. RESULTS TUNEL positivity was seen in neuroglia cells of the brain cortex in both groups. While the immunoreactivities of caspase 8, 9 and Fas/ Fas ligand were similar in both groups, the immunoreactivity of caspase 3 was greater in Group I than Group II. MDA was significantly lower in Group II than in Group I (p < 0.05). The decrease in SOD level was higher in Group I than Group II. CONCLUSION Lornoxicam did not prevent apoptosis in this rat model of brain trauma but causes a decrease.
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Affiliation(s)
- Ismet Topcu
- Celal Bayar University, Faculty of Medicine, Department of Anesthesiology and Intensive Care, Manisa, Turkey
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Tastekin D, Tas F, Karabulut S, Duranyildiz D, Serilmez M, Guveli M, Vatansever S. Clinical significance of serum tenascin-C levels in breast cancer. Tumour Biol 2014; 35:6619-25. [PMID: 24696262 DOI: 10.1007/s13277-014-1875-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Accepted: 03/19/2014] [Indexed: 12/21/2022] Open
Abstract
Tenascin-C (TNC) is a key molecule in tissue remodeling, and high levels are observed in many diseases, including heart failure, thrombosis, atherosclerosis, and cancer. High TNC expression by immunohistochemical analysis has been shown in invasive and metastasizing tissues from a variety of cancers, including colon, lung, brain, and breast. This study was conducted to investigate the serum level of TNC in breast cancer patients and its relationship with tumor progression and known prognostic parameters. Ninety-six breast cancer patients were enrolled into the study. Serum samples were obtained on first admission before adjuvant and metastatic treatments were given and at follow-up. Serum TNC levels were determined by the solid-phase sandwich enzyme-linked immunosorbent assay (ELISA) method. Median age of diagnosis was 48 years old (range, 29-80). Thirty-seven (39 %) patients had metastatic breast cancer. The mean TNC levels were found to be significantly higher in patients with breast cancer (344.1 ± 42.4 pg/mL) compared to those in healthy controls (137.2 ± 26.8 pg/mL) (p = 0.005). Serum TNC level in grade 3 tumors was found to be significantly higher than in grades 1-2 tumors (p = 0.04). No correlation was detected between serum TNC levels and other prognostic parameters analyzed, including presence of metastasis, lymph node involvement, and tumor size. Serum TNC level had no significantly adverse effect on survival in univariate and multivariate analyses (p = 0.65 and p = 0.85, respectively). In conclusion, although serum TNC levels are elevated, it has no predictive or prognostic roles on survival in breast cancer patients.
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Affiliation(s)
- D Tastekin
- Department of Medical Oncology, Oncology Institute, Istanbul University, Capa, 34390, Istanbul, Turkey,
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Kara E, Coşkun T, Kaya Y, Yumuş O, Vatansever S, Var A. Effects of silymarin and pentoxifylline on matrix metalloproteinase-1 and -2 expression and apoptosis in experimental hepatic fibrosis. Curr Ther Res Clin Exp 2014; 69:488-502. [PMID: 24692823 DOI: 10.1016/j.curtheres.2008.12.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/29/2008] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Many therapeutic strategies have been proposed to treat liver fibrosis, but no drugs have been proved effective. Matrix metalloproteinases (MMPs) have been reported to play a role in some cellular cascades of hepatic inflammation and fibrosis. OBJECTIVE The purpose of this study was to investigate whether silymarin and pentoxifylline (PTX) have hepatoprotective and antifibrotic effects in experimental hepatic fibrosis. METHODS Sprague-Dawley rats were divided into 4 groups: silymarin group (silymarin 4 mg/kg · d(-1) orally, common bile duct ligation [CBDL]); PTX group (PTX 2 mg/kg · d(-1) intraperitoneally, CBDL); sham group (common bile duct [CBD] exploration only); and control group (saline 1 mL/d orally, CBDL). The CBD was explored and dissected sufficiently to allow passage of a 3/0 silk suture via midline laparotomy. On day 10, all animals were euthanized via cervical dislocation. Then, 5-cm(3) liver samples from the right lobe were removed for histomorphologic evaluation and 3-mL blood samples were taken via cardiac puncture for biochemical analyses. Apoptosis was determined using the terminal deoxynucleotidyltransferase-biotin nick end-label (TUNEL) staining method. Plasma levels of aspartate aminotransferase (AST), alanine aminotransferase (ALT), and γ-glutamyltransferase; total and indirect bilirubin concentration; hepatic MMP-1 and -2 and tissue inhibitor of MMP (TIMP)-l and -2 activity; and transforming-growth factor (TGF)-β1 concentration were measured. Collagen content was determined by measuring hydroxyproline in liver samples. Malondialdehyde (MDA) was used to estimate lipid peroxidation. RESULTS Thirty-two adult male Sprague-Dawley rats were divided into 4 groups: silymarin group (n = 7), PTX group (n = 7), sham group (n = 9), and control group (n = 9). Compared with the control group (14.6 [2.44]), mean (SD) hepatocyte apoptosis (as measured by the ratio of TUNEL-positive cells) was significantly suppressed in the silymarin group (1.2 [0.13]; P = 0.001) and the PTX group (3.8 [0.34]; P = 0.001). Mean (SD) MMP-2 activity in the silymarin group (57.35 [9.89] μg/mL; P = 0.04) and the PTX group (46.88 [9.56] μg/mL; P = 0.04) was significantly lower than that observed in the control group (232.32 [79.76] μg/mL). Compared with the control group (1.37 [0.38] μg/mL), TIMP-2 activity was significantly lower in the silymarin group (0.55 [0.13] μg/mL; P = 0.04) and the PTX group (0.42 [0.09] μg/mL; P = 0.01). Compared with the control group (909.17 [117.35] μg/mL), TGF-β1 was significantly lower in the silymarin group (518.24 [30.34] μg/mL; P = 0.01) and the PTX group (519.57 [47.27] μg/mL; P = 0.01). Histomorphologic changes were significantly greater in the sham group than in the silymarin and PTX groups: hemorrhage (2.44 [0.29] vs 1.29 [0.18] and 1.57 [0.20], respectively; both, P = 0.04); sinusoidal dilatation (2.22 [0.22] vs 1.57 [0.20] and 1.71 [0.18]; both, P = 0.04); presinusoidal polymorphonuclear cell infiltration (3-44 [0.24] vs 2.57 [0.20] and 2.14 [0.26]; P = 0.03 and P = 0.008, respectively); and inflammation (3.44 [0.24] vs 2.57 [0.20] and 2.14 [0.26]; P = 0.03 and P = 0.008, respectively). In the control group, all biochemical markers were elevated, supporting the presence of liver injury. Compared with the control group (630.00 [46.80] U/L), plasma AST activity was significantly lower in the silymarin group (443.11 [78.73]; P = 0.04) and the PTX group (349.42 [34.00]; P = 0.03). Compared with the control group (191.12 [32.93] U/L), plasma ALT activity was significantly lower in the silymarin group (86.14 [4.97]; P = 0.04) and the PTX group (84.14 [11.21]; P = 0.04). MDA concentration was significantly lower in the silymarin group compared with the control group (0.08 [0.01] vs 0.22 [0.03] nmol/mL; P = 0.004); MDA was also significantly lower in the silymarin group than in the PTX group (0.11 [0.02]; P = 0.03). CONCLUSIONS Silymarin and PTX were associated with lower histopathologic liver damage, hepatocyte apoptosis, and regulation of extracellular matrix proteins. Lipid peroxidation in hepatocytes was significantly lower in the silymarin group compared with the PTX group. Silymarin and PTX appeared to have hepatoprotective effects in this experimental liver fibrosis model, but further clinical and experimental studies are needed.
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Affiliation(s)
- Eray Kara
- Medical School, Celal Bayar University, Manisa, Turkey
| | - Teoman Coşkun
- Medical School, Celal Bayar University, Manisa, Turkey
| | - Yavuz Kaya
- Medical School, Celal Bayar University, Manisa, Turkey
| | - Okan Yumuş
- Medical School, Celal Bayar University, Manisa, Turkey
| | | | - Ahmet Var
- Medical School, Celal Bayar University, Manisa, Turkey
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Kara E, Var A, Vatansever S, Cilaker S, Kaya Y, Coşkun T. Effects of rofecoxib, a selective cyclooxygenase-2 inhibitor, on endothelial dysfunction, lipid peroxidation, and hepatocyte morphology in rats with sepsis-induced liver damage. Curr Ther Res Clin Exp 2014; 65:278-91. [PMID: 24672083 DOI: 10.1016/s0011-393x(04)80087-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2004] [Indexed: 10/26/2022] Open
Abstract
BACKGROUND Sepsis remains a difficult problem for clinicians, with its systemic effects and high morbidity and mortality rates. The roles of oxidative stress, endothelial dysfunction, and lipid peroxidation in sepsis-induced organ damage are being investigated. OBJECTIVE The aim of this study was to investigate the effects of selective cyclooxygenase (COX)-2 inhibition on tissue lipid peroxidation, endothelial dysfunction, and hepatic cell morphology in a rat model of sepsis. METHODS Thirty rats with sepsis induced by cecal ligation and puncture were divided equally into 3 groups: treatment group (rofecoxib 1 mg/kg PO), control group (saline 1 mL PO), and sham group (sham surgery only). All the rats were sacrificed 1 day after sepsis induction. The livers were removed using a median laparotomy for histopathologic and biochemical analysis. RESULTS Histomorphologic hepatic damage and lipid peroxidation were significantly reduced in the rofecoxib treatment group compared with the control group (P < 0.05 and P = 0.001, respectively). Endothelial nitric oxide synthase and inducible nitric oxide synthase staining of liver samples was statistically significantly reduced in the treatment group compared with the control group (both, P < 0.001). The hepatic nitric oxide level and malonyldialdehyde activity decreased significantly (P < 0.001 and P = 0.001, respectively) in the rofecoxib group compared with the control group. Hepatic myeloperoxidase activity was similar between the treatment and control groups. CONCLUSION Further investigation of selective COX-2 inhibition as an alternate therapeutic choice for sepsis-induced hepatic damage should be considered.
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Affiliation(s)
- Eray Kara
- Department of General Surgery, Faculty of Medicine, University of Celal Bayar, Manisa, Turkey
| | - Ahmet Var
- Department of Biochemistry, Faculty of Medicine, University of Celal Bayar, Manisa, Turkey
| | - Seda Vatansever
- Department of Histology and Embryology, Faculty of Medicine, University of Celal Bayar, Manisa, Turkey
| | - Serap Cilaker
- Department of Histology and Embryology, Faculty of Medicine, University of Celal Bayar, Manisa, Turkey
| | - Yavuz Kaya
- Department of General Surgery, Faculty of Medicine, University of Celal Bayar, Manisa, Turkey
| | - Teoman Coşkun
- Department of General Surgery, Faculty of Medicine, University of Celal Bayar, Manisa, Turkey
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Karabulut S, Duranyıldız D, Tas F, Gezer U, Akyüz F, Serilmez M, Ozgür E, Yasasever CT, Vatansever S, Aykan NF. Clinical significance of serum circulating insulin-like growth factor-1 (IGF-1) mRNA in hepatocellular carcinoma. Tumour Biol 2014; 35:2729-39. [PMID: 24272080 DOI: 10.1007/s13277-013-1360-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2013] [Accepted: 10/24/2013] [Indexed: 02/07/2023] Open
Abstract
The principal aim of our study was to investigate the usefulness of serum protein and circulating mRNA of insulin-like growth factor-1 (IGF-1) as a diagnostic and prognostic tool in hepatocellular carcinoma (HCC). Fifty-four HCC patients and age- and sex-matched 20 healthy controls were enrolled into this study. Pretreatment serum IGF-1 and IGF-1 mRNA were determined by the solid-phase sandwich ELISA and quantitative RT-PCR method, respectively. The median age at diagnosis was 60 years, range 36-77 years; where majority of group were male (n = 48, 88.8%). All patients had cirrhotic history. Forty-six percent (n = 25) of patients had Child-Pugh score A, 30% (n = 16) had score B or C. All of the patients were treated with local therapies and none of them received sorafenib. The baseline serum IGF-1 mRNA levels were significantly higher in HCC patients than in the control group (p = 0.04), whereas no significant difference was observed for IGF-1 protein levels between the two group (p = 0.18). Patients with history of HBV infection, who were not treated, and who received multiple palliative treatment for HCC had higher serum IGF-1 mRNA levels (p = 0.03, 0.03, and 0.05, respectively). Poor performance status (p < 0.001), viral etiology of cirrhosis (p = 0.03), larger tumor size (p = 0.01), lower serum hemoglobin levels (p = 0.03), and not be treated for HCC (p = 0.001) related to worse survival. However, neither serum IGF-1 nor serum IGF-1 mRNA had significantly adverse effect on survival (p = 0.53 and 0.42, respectively).
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Affiliation(s)
- S Karabulut
- Department of Medical Oncology, Oncology Institute, Istanbul University, Istanbul, Turkey,
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Keskin S, Tas F, Karabulut S, Yildiz I, Kiliç L, Ciftci R, Vatansever S. The role of surgical methods in the treatment of anorectal malignant melanoma (AMM). Acta Chir Belg 2014. [PMID: 24494470 DOI: 10.1080/00015458.2013.11680958] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
PURPOSE Anorectal malignant melanoma (AMM) is a rare tumor with a poor prognosis. The aim of this study was to investigate the clinicopathological characteristics and treatment outcomes in patients with AMM. METHODS The study included 21 patients diagnosed with AMM between 2000 and 2010 that were evaluated with regard to age, sex, disease stage, treatment modality, and survival. Stage I, II, and III were defined as localized primary malignant melanoma, regional lymph node metastasis, and distant metastasis, respectively. RESULTS In all, 12 (57%) patients were female and 9 (43%) were male ; median age was 61 years (range : 30-84 years). Among the 21 patients, 7 (47%) underwent abdominoperineal resection and 8 (53%) were treated using wide local excision. Four (19%) patients were classified as stage I, 10 (48%) as stage II, and 7 (33%) patients as stage III. In total, 10 patients received adjuvant therapy. Median overall and progression-free survival was 12 and 9 months, respectively. The 1-year and 5-year overall survival estimates were 59% and 42%, and progression free survival were 49% and 7%, respectively. Patients aged > 60 years (P = 0.145), female patients (P = 0.076), patients with localized disease (P = 0.045), patients that underwent wide local excision (P = 0.619), and patients that received adjuvant therapy (P = 0.962) had longer survival. CONCLUSIONS The prognosis of AMM remains very poor and disease stage is the only predictor of survival. Abdominoperineal resection does not confer an advantage, in terms of survival, in patients with AMM.
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Affiliation(s)
- S. Keskin
- Department of Medical Oncology, Institute of Oncology, University of Istanbul, Istanbul, Turkey
| | - F. Tas
- Department of Medical Oncology, Institute of Oncology, University of Istanbul, Istanbul, Turkey
| | - S. Karabulut
- Department of Medical Oncology, Institute of Oncology, University of Istanbul, Istanbul, Turkey
| | - I. Yildiz
- Department of Medical Oncology, Institute of Oncology, University of Istanbul, Istanbul, Turkey
| | - L. Kiliç
- Department of Medical Oncology, Institute of Oncology, University of Istanbul, Istanbul, Turkey
| | - R. Ciftci
- Department of Medical Oncology, Institute of Oncology, University of Istanbul, Istanbul, Turkey
| | - S. Vatansever
- Department of Medical Oncology, Institute of Oncology, University of Istanbul, Istanbul, Turkey
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Karabulut S, Akşit E, Tas F, Ciftci R, Aydiner A, Yildiz I, Keskin S, Eralp Y, Yasasever CT, Vatansever S, Disci R, Saip P. Is there any diagnostic value of serum protease-activated receptor-1 (PAR1) levels on determination of epithelial ovarian carcinoma? Tumour Biol 2014; 35:4323-9. [PMID: 24390664 DOI: 10.1007/s13277-013-1567-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2013] [Accepted: 12/17/2013] [Indexed: 11/25/2022] Open
Abstract
The role of molecular markers in ovarian cancer is still a matter of debate. Protease-activated receptor-1 (PAR1) might be a good marker in some types of malignant tumors and might provide useful information in diagnosis and prognosis. The objective of this study was to evaluate the serum levels of PAR1 in regard to diagnostic, predictive, and prognostic value in epithelial ovarian cancer (EOC) patients. Forty-four EOC patients were enrolled in this study. Serum PAR1 levels were determined by enzyme-linked immunosorbent assay (ELISA) method. Twenty-five age- and sex-matched healthy controls were included in the analysis. The median age of patients was 58 years old, ranging from 22 to 83 years, where most of them had advanced disease (stage III-IV) (n = 40, 91%). The median serum PAR1 values were significantly elevated in patients compared to healthy controls (1.52 ng/ml vs. 1.13 ng/ml) (p = 0.03), whereas any clinical variables including response to chemotherapy did not associate with serum assay (p > 0.05). Progression-free survival (PFS) and overall survival (OS) of patients who did not respond to chemotherapy nor had platinum resistance in relapsed disease were poorer in the analyses. On the other hand, serum PAR1 levels showed no significant adverse effect on either PFS or OS (p = 0.43 and p = 0.49, respectively). These results proved that baseline serum PAR1 levels of patients with EOC were significantly higher than those of healthy people. However, these assays suggested no predictive or prognostic value in this group of patients.
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Affiliation(s)
- S Karabulut
- Department of Medical Oncology, Institute of Oncology, Istanbul University, Capa, 34390, Istanbul, Turkey,
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Kayıkçıoğlu Ö, Vatansever S, Topçu İ, Aydemir I, Bilecenoğlu T, Kahvecioğlu F, Emre S. İntravitreal Bevacizumabın Sıçan Retina Hücrelerinde Apoptozis Üzerine Etkileri. Turk J Ophthalmol 2014. [DOI: 10.4274/tjo.43.07279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Yuksel H, Yilmaz O, Vatansever S, Onur E, Kirmaz C, Nal E, Turkeli A, Bozyigit FD. Peripheral Mononuclear Response to Antigenic Stimulation in Children with Obese Asthma Phenotype. Pediatr Allergy Immunol Pulmonol 2013; 26:193-198. [PMID: 35923042 DOI: 10.1089/ped.2012.0216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
An investigation of immunopathogenetic mechanisms of obesity-associated asthma may demonstrate novel therapeutic targets. The aim of this study was to compare levels of T-helper lymphocyte (Th)1, Th2, regulatory T lymphocyte (Treg), and Th17 cytokines secreted by peripheral blood mononuclear cell culture (PBMC) in response to nonspecific stimulation in obese and nonobese children with asthma. Obese and nonobese children with asthma aged 5-16 were enrolled into this case-control study consecutively. Age at asthma diagnosis and clinical severity were recorded. A skin prick test was performed. Serum adipokine levels and PBMC supernatant interleukin (IL)-4, IL-10, IL-17, IL-23, interferon (IFN)γ, and transforming growth factor (TGF)-β levels were measured. Mean (±standard deviation) ages of obese (n=28) and nonobese (n=39) children with asthma were 8.7±2.9 and 10.5±3.2, respectively. Asthma symptom score was higher, and age at asthma diagnosis was lower in obese compared with nonobese children with asthma (P=0.03 and P=0.004, respectively). Leptin levels were significantly higher in obese than in nonobese asthma group (P<0.001). IL-10 and IL-17 levels in obese group were significantly lower than in nonobese group (P=0.005 and P=0.017, respectively). On the other hand, TGF-β levels were significantly higher in obese compared with nonobese children with asthma (P=0.015). IL-4, IL-23, and IFNγ levels were not significantly different between the groups (P<0.05 for all). Low IL-10 and high TGF-β levels in obese compared with nonobese children with asthma might indicate lower anti-inflammatory cytokine secretion and Treg function as well as a higher remodeling process in obesity-associated asthma in children.
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Affiliation(s)
- Hasan Yuksel
- Department of Pediatric Allergy and Pulmonology, Celal Bayar University, Manisa, Turkey
| | - Ozge Yilmaz
- Department of Pediatric Allergy and Pulmonology, Celal Bayar University, Manisa, Turkey
| | - Seda Vatansever
- Department of Histology and Embryology, Celal Bayar University, Manisa, Turkey
| | - Ece Onur
- Department of Biochemistry, Celal Bayar University, Manisa, Turkey
| | - Cengiz Kirmaz
- Allergy and Immunology, Celal Bayar University, Manisa, Turkey
| | - Emine Nal
- Department of Histology and Embryology, Celal Bayar University, Manisa, Turkey
| | - Ahmet Turkeli
- Department of Pediatric Allergy and Pulmonology, Celal Bayar University, Manisa, Turkey
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Sanlidag T, Akcali S, Vatansever S, Cicek C, Sayan M, Cakmakliogullari EK, Taskiran Sen P. Investigation of adipogenic effects of human adenovirus serotypes 36 and 5 in a Colo-320 cell line. Future Virol 2013. [DOI: 10.2217/fvl.13.39] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aim: We aimed to investigate the adipogenic effects of adenovirus (Ad) serotypes 5, 36 and 8 in a Colo-320 cell line using histochemical, immunohistochemical and electron microscopic methods. Materials & methods: Ad serotypes were inoculated in a Colo-320 cell line and were cultured for 14 days. They were then collected and fixed with 4% paraformaldehyde to analyze their adipogenic effects using histochemistry, immunohistochemistry and electron microscopic methods. Intracellular lipid droplets were detected in the Colo-320 cells inoculated with Ad36 and Ad5 by electron microscopic analyses. Results: After Oil Red O staining, the pink–orange staining was positive intracellularly in Colo-320 cells infected with Ad36 and Ad5. In addition, the leptin immunoreactivity was also positive in these cells. Conclusion: Our results suggested that intracellular lipid accumulation occured after infection with Ad36 and Ad5. The positive staining of Oil Red O and leptin also supported the electron microscopic results; therefore, we conclude that this accumulation occurred due to adipogenic effects of Ad36 and Ad5.
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Affiliation(s)
- Tamer Sanlidag
- Department of Medical Microbiology, Faculty of Medicine, Celal Bayar University, Manisa, Turkey.
| | - Sinem Akcali
- Department of Medical Microbiology, Faculty of Medicine, Celal Bayar University, Manisa, Turkey
| | - Seda Vatansever
- Department of Histology–Embryology, Faculty of Medicine, Celal Bayar University, Manisa, Turkey
| | - Candan Cicek
- Department of Medical Microbiology, Faculty of Medicine, Ege University, Izmir, Turkey
| | - Murat Sayan
- Kocaeli University Hospital, Clinical Laboratory, PCR Unit, Umuttepe Campus, Izmit, Kocaeli 41380, Turkey
| | | | - Pinar Taskiran Sen
- Department of Medical Microbiology, Faculty of Medicine, Celal Bayar University, Manisa, Turkey
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Sahin S, Solak S, Akyol O, Vatansever S, Ozyuvaci E. Transdermal methyl alcohol intoxication cause of pain relief. W INDIAN MED J 2013; 62:84-86. [PMID: 24171334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A 60-year old female patient was found comatosed at home and taken to the hospital's Emergency Department by her relatives. It was learnt that she wrapped her knees with spirit-impregnated cotton pad for pain for one week. On physical examination, only a colour change of purple violet on her knees was noted. Metabolic acidosis with increased anion gap was detected by arterial blood analysis. The patient underwent haemodialysis. She was discharged from the hospital with no complaints, alert and rational following five days of follow-up treatment, with the diagnosis of methyl alcohol poisoning.
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Affiliation(s)
- S Sahin
- Intensive Care Unit, Istanbul Training and Research Hospital, Istanbul, Turkey
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Umur AS, Yaldiz C, Bursali A, Umur N, Kara B, Barutcuoglu M, Vatansever S, Selcuki D, Selcuki M. Evaluation of the effects of mobile phones on the neural tube development of chick embryos. Turk Neurosurg 2013; 23:742-52. [DOI: 10.5137/1019-5149.jtn.7757-12.0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Ozbilgin K, Boz B, Tuğyan K, Inan S, Vatansever S. RHAMM Expression in the Rat Endometrium during the Estrous Cycle and following Implantation. J Reprod Infertil 2012; 13:131-7. [PMID: 23926537 PMCID: PMC3719349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2012] [Accepted: 05/20/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Receptor for hyaluronic acid mediated motility (RHAMM) has intracellular and extracellular functions. In this study, we focus on the expression of RHAMM in the rat uterus during estrous cycle and implantation period. METHODS The female adult rats were divided into six groups following estrous cycle determination (n = 36). The utreri of rats were collected according to estrous cycle phases (menstruation group). For the implantation groups, uteri were obtained on D4, D5 and D6 (day of implantation) of pregnancy. The tissue samples were fixed and cut into 5 µm thick sections. RHAMM was investigated using immunohisto-chemical techniques and the intensity of RHAMM was evaluated by using the H-score technique. Comparisons between groups were performed using Kruskal-Wallis test. RESULTS The RHAMM immunoreactivity of uterine antimesometrial epithelium (343.00±12.81), mesometrial subepithelium (285.00±27.26) and mesometrial stroma (270.00±36.00) were more prominent (p < 0.05) in the proestrus than estrus (275.00± 25.96; 220.00±14.48; 218.00±11.19) and diestrus (262.00±20.71; 192.50± 29.25; 216.00±12.97) groups, respectively. The most intense staining was seen in the epithelium on day four (275.50±30.06) and six (293.50±34.47) of pregnancy (p < 0.05). Strong RHAMM expressions were in both mature and predecidual cells on D5 (256.00±18.71), (247.50±22.14) and D6 (256.00±30.72), (265.00±14.87), respectively. RHAMM expression was prominent in the nondecidual region on D5 (270.00± 13.36). CONCLUSION Considering the role of RHAMM in cell proliferation, differentiation and angiogenesis, spatiotemporal expression of RHAMM in the uterus during estrous cycle and peri-implantation period is a means through which uterus becomes receptive for developing an embryo.
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Affiliation(s)
- Kemal Ozbilgin
- Department of Histology and Embryology, School of Medicine, Celal Bayar University, Manisa, Turkey,Corresponding Author: Kemal Ozbilgin, Department of Histology and Embryology, School of Medicine, Celal Bayar University, Manisa, Turkey. E-mail:
| | - Banu Boz
- Department of Histology and Embryology, School of Medicine, Celal Bayar University, Manisa, Turkey
| | - Kazım Tuğyan
- Department of Histology and Embryology, School of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Sevinç Inan
- Department of Histology and Embryology, School of Medicine, Celal Bayar University, Manisa, Turkey
| | - Seda Vatansever
- Department of Histology and Embryology, School of Medicine, Celal Bayar University, Manisa, Turkey
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Sogut A, Yilmaz O, Kirmaz C, Ozbilgin K, Onur E, Celik O, Pinar E, Vatansever S, Dinc G, Yuksel H. Regulatory-T, T-helper 1, and T-helper 2 cell differentiation in nasal mucosa of allergic rhinitis with olive pollen sensitivity. Int Arch Allergy Immunol 2011; 157:349-53. [PMID: 22123238 DOI: 10.1159/000329159] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2010] [Accepted: 04/29/2011] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Allergic rhinitis (AR) is a disease in which T-helper (Th)2 response is predominant and its pathogenic mechanism is still poorly understood. AIM To evaluate the possible role of Th1, Th2 and regulatory-T (Treg) cells in the pathogenesis of AR. METHODS This case-control study enrolled 41 patients with seasonal AR (10-62 years old), sensitive to olive pollens, and 15 healthy controls (18-60 years old). Nasal biopsy was performed and specimens of nasal lavage fluid were obtained from all participants. The levels of interleukin (IL)-4, IL-10, interferon (IFN)-γ and transforming growth factor-β (TGF-β) were measured in nasal lavage fluid specimens. The expression of FOXP3, GATA-3 and T-bet was measured by immunohistochemical methods in the nasal biopsy specimens. RESULTS The levels of IFN-γ in the group with AR were significantly lower than those in the control group (p = 0.008). The levels of IL-4, IL-10 and TGF-β did not differ between the two groups. The expression of FOXP3 and T-bet in patients with AR was significantly lower than that in the control group (both p = 0.001). Expression of GATA-3 in the nasal mucosa was similar between the groups (p = 0.2). The ratios of T-bet/GATA-3 and FOXP3/GATA-3 in the AR group were significantly lower than those in the control group (p = 0.001). CONCLUSION Insufficient Treg and Th1 cells may be associated with the allergic inflammation that may be attributed to the Th2 immune response in patients suffering from AR who are sensitive to olive pollen.
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Affiliation(s)
- Ayhan Sogut
- Pediatric Allergy and Pulmonology Unit, Celal Bayar University School of Medicine, Manisa, Turkey.
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Gorgulu K, Vatansever S, Gozuacik D. 6129 POSTER Analysis of Surfactant on Primary(COLO-320) and Metastatic(COLO-741) Human Colon Cancer Cells Treated With A-Lactalbumin or Sulindac. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)71774-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Alper E, Buyraç Z, Baydar B, Cengiz O, Vatansever S, Aslan F, Akça S, Ünsal B. Evaluation of flow and structure abnormalities of splanchnic system veins in cirrhotic patients without portal hypertension. MINERVA GASTROENTERO 2011; 57:123-127. [PMID: 21587151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
AIM The aim of this study was to evaluate hemodynamic and anatomic alterations of the splanchnic venous system and the efficiency and safety of color Doppler radial endosonography in the assessment of cirrhotic patients by comparing Child A cirrhotic patients without portal hypertension findings versus a non-cirrhotic group. METHODS The study was carried out between January 2009 and February 2010; the study population was 38 cirrhotic patients without portal hypertension and 140 control patients. RESULTS Hepatopedal flow was monophasic in all the control patients; the flow pattern was chaotic and irregular in 8% of the cirrhotic patients; in the cirrhotic patients the portal vein diameter was increased and the flow velocity reduced; no differences in flow volume were observed between the two groups. Splenic vein diameter and flow velocity were normal. In the majority of the Child A cirrhotic patients without portal hypertension, no changes were seen in portal vein diameter or flow volume; in some patients no significant increase portal vein diameter was observed and showed the flow volumes were unchanged. CONCLUSION Radial Doppler endosonography may be efficient and safe for assessing the splanchnic system.
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Affiliation(s)
- E Alper
- Atatürk Research and Training Hospital, Izmir, Turkey
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Erbüyün K, Tok D, Vatansever S, Ok G, Türköz E, Aydede H, Erhan Y, Tekin I. Levosimendan up-regulates transforming growth factor-beta and smad signaling in the aorta in the early stage of sepsis. ULUS TRAVMA ACIL CER 2010; 16:293-299. [PMID: 20849043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
BACKGROUND This prospective, controlled experimental study was planned to investigate the effects of levosimendan on transforming growth factor (TGF)-beta3 and Smad1, Smad2 and Smad3 expression in the early stages of sepsis. METHODS Twenty-four rats were randomized into four groups: (1) sham-operated controls, (2) dobutamine group--subjected to abdominal hypertension and peritonitis-induced sepsis using cecal ligation and puncture (CLP), then treated with 10 microg x kg(-1) min(-1) intravenous (IV) dobutamine infusion, (3) levosimendan group--as in 2, then treated with levosimendan IV bolus 200 microg x kg(-1) followed by 200 microg x kq(-1) min(-1) IV infusion, and (4) a control group as in 2, with no treatment. All rats were killed 8 hours after CLP. Aorta tissue samples were analyzed by immunohistochemical staining. RESULTS CLP caused mild interleukin (IL)-1 immunostaining in both control and dobutamine groups. Immunoreactivity of tumor necrosis factor (TNF)-alpha was mild in both sham and control groups. TGF-beta3 immunostaining was mildly increased in groups sham, control and dobutamine, whereas it was found moderate in group levosimendan. Smad1, Smad2 and Smad3 were found moderately increased only in group levosimendan. CONCLUSION Beneficial effects of levosimendan on hemodynamics and global oxygen transport were reported in experimental and clinical trials. Besides its potency on C++ ion sensitivity, it should influence inflammatory cytokine production by diminishing TGF-beta3 and Smad1, Smad2 and Smad3 expression.
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Affiliation(s)
- Koray Erbüyün
- Department of Anesthesiology, Celal Bayar University, Faculty of Medicine, Manisa, Turkey.
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