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Ucuncu Kefeli A, Yaprak Bayrak B, Betul Tunce E, Vural C, Suyusal Hİ, Kefeli U, Aksu MG. Expression of netrin-1 in uterine serous carcinoma and its association with prognosis. Int J Gynaecol Obstet 2024. [PMID: 38588254 DOI: 10.1002/ijgo.15513] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 03/13/2024] [Accepted: 03/18/2024] [Indexed: 04/10/2024]
Abstract
BACKGROUND/OBJECTIVES At present, there are few biomarkers used to predict the prognosis of uterine serous carcinoma (USC). Netrin-1 may be a promising biomarker candidate. We investigated netrin-1 expression in USC tissues and healthy endometrial tissues to determine its relevance to disease prognosis. MATERIALS AND METHODS Netrin-1 expression was examined in the tissues of 48 patients with USC and 30 patients with healthy benign endometrial tissues via immunohistochemistry. RESULTS None of the healthy tissues were stained with netrin-1. In tumor tissues, the overall positivity rate of netrin-1 was 75%, detected as high expression in 17 patients (35%) and low in 19 (40%). Patients who had tumors with no netrin-1 expression (n = 12) had a median overall survival (OS) of 60.0 months (95% confidence interval [CI], 47-98), whereas patients who had tumors with low to strong netrin-1 expression (n = 33) had a lower median OS of 50 months, but the difference was not statistically significant (95% CI, 58-108; P = 0.531). Disease-free survival (DFS) was not statistically significant between the groups (95% CI, 67.7-115.9; P = 0.566). Patients with a tumor diameter ≥2 cm had higher netrin-1 expression than those with a tumor diameter of 2 cm (P = 0.027). We did not find any difference in overall and DFS when age, tumor stage, histology, tumor diameter, p53 status, lymphovascular space invasion, myometrial invasion, and lymph node metastasis were compared according to netrin-1 expression (P > 0.05). CONCLUSION Netrin-1 was expressed in USC but not in healthy tissues. Its expression was not associated with OS or DFS.
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Affiliation(s)
- Aysegul Ucuncu Kefeli
- Faculty of Medicine, Department of Radiation Oncology, Kocaeli University, Kocaeli, Turkey
| | - Busra Yaprak Bayrak
- Faculty of Medicine, Department of Pathology, Kocaeli University, Kocaeli, Turkey
| | - Esra Betul Tunce
- Faculty of Medicine, Department of Pathology, Kocaeli University, Kocaeli, Turkey
| | - Cigdem Vural
- Faculty of Medicine, Department of Pathology, Kocaeli University, Kocaeli, Turkey
| | - Halil İbrahim Suyusal
- Faculty of Medicine, Department of Radiation Oncology, Kocaeli University, Kocaeli, Turkey
| | - Umut Kefeli
- Division of Medical Oncology, Faculty of Medicine, Department of Internal Medicine, Kocaeli University, Kocaeli, Turkey
| | - Maksut Gorkem Aksu
- Faculty of Medicine, Department of Radiation Oncology, Kocaeli University, Kocaeli, Turkey
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Samatya Yilmaz S, Aytac A. Antibacterial wound dressing with cross-linked electrospun surface from reduced graphene oxide doped polyvinyl alcohol/sodium caseinate blends. Biopolymers 2024:e23579. [PMID: 38578129 DOI: 10.1002/bip.23579] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 03/15/2024] [Accepted: 03/18/2024] [Indexed: 04/06/2024]
Abstract
In this study, a new biomaterial with polyvinyl alcohol (PVA)/sodium caseinate (SodCa)/reduced graphene oxide (rGO) structure was developed. Antibacterial effective nanofibers were successfully produced by electrospinning method from 1%, 3%, 5%, and 7% rGO added PVA/SodCa (60:40, w:w) solution mixtures prepared for use as modern wound dressings. To create a usage area, especially in exuding wounds, hydrophilic PVA/SodCa/rGO electrospun mats were cross-linked by dipping them in a glutaraldehyde (GLA) bath. The surface micrographs of all nanofibers were homogeneous and smooth. rGO-doped biomaterials were obtained as thin nanofibers in the range of 301-348 nm. Nanofibers, which were completely soluble in water, after cross-linking preserved their existence in the range of 87%-81% at the end of the 24th hour in distilled water. It was reported that these biomaterials that persist in an aqueous environment show swelling behavior in the range of 275%-608%. The porosity of uncross-linked pure PVA/SodCa nanofibers increased by 46.75% after cross-linking. Moreover, the tensile strength of cross-linked PVA/SodCa electrospun mats increased in the presence of rGO. Provided that wound dressing is done every 24 h with 3% rGO-doped PVA/SodCa nanofiber and provided that wound dressing is done every 48 h with 5% rGO-doped PVA/SodCa nanofiber showed antibacterial activity against S. aureus as 99.38% and 99.55%, respectively.
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Affiliation(s)
| | - Ayse Aytac
- Chemical Engineering Department, Kocaeli University, Kocaeli, Turkey
- Polymer Science and Technology Department, Kocaeli University, Kocaeli, Turkey
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Çankaya S, Pekey B. Evaluating the environmental and economic performance of biological and advanced biological wastewater treatment plants by life cycle assessment and life cycle costing. Environ Monit Assess 2024; 196:373. [PMID: 38491308 DOI: 10.1007/s10661-024-12519-z] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 03/05/2024] [Indexed: 03/18/2024]
Abstract
The primary objective of this study is to assess and establish benchmarks for environmental and economic sustainability of biological and advanced biological wastewater treatment plants (WWTPs) with different treatment technologies and characteristics. Furthermore, the study aims to determine the beneficial role of WWTPs to reduction of eutrophication potential. Environmental and economic sustainability of ten municipal WWTPs was assessed using life cycle assessment (LCA) and life cycle costing (LCC). In the first section of the study, LCA was performed to determine the environmental performance of the WWTPs. Furthermore, net environmental benefit (NEB) approach was implemented to reveal the beneficial role of WWTPs to eutrophication potential. In the subsequent section, LCA-based LCC was conducted by integrating the results of LCA. The most significant environmental impact was determined as marine aquatic ecotoxicity, which is highly affected from the generation and transmission of electricity consumed in the WWTPs. Wastewater recovery and co-incineration of sewage sludge in cement kiln ensure significant environmental savings on ozone layer depletion, human toxicity, acidification, photochemical oxidation, and abiotic depletion (fossil fuel) potential. Considering NEB approach, the highest NEB values were found for the WWTPs with the higher organic load and nutrient concentration in the influent. The results of LCC in WWTPs varied between 0.21 and 0.53 €/m3. External (environmental) costs were evaluated higher than internal (operational) costs for all selected WWTPs. While eutrophication was the highest among environmental costs, electricity cost was the highest among operational costs for almost all WWTPs.
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Affiliation(s)
- Simge Çankaya
- Department of Environmental Engineering, Kocaeli University, Kocaeli, Turkey.
| | - Beyhan Pekey
- Department of Environmental Engineering, Kocaeli University, Kocaeli, Turkey
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Uyar B, Ali MD, Uyar GEO. Design parameters comparison of bubble column, airlift and stirred tank photobioreactors for microalgae production. Bioprocess Biosyst Eng 2024; 47:195-209. [PMID: 38226988 DOI: 10.1007/s00449-023-02952-8] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 11/16/2023] [Indexed: 01/17/2024]
Abstract
Microalgae are the most propitious feedstock for biofuel production due to their lipid and fatty acid content. Microalgae cultivation shares many features with bioreactors, such as thermal and pH regulation, feeding procedures, and mixing to enhance heat and mass transfers. Aeration and stirring speeds are important parameters to reduce the costs of producing microalgae. In this study, three different photobioreactor types (stirred tank, airlift, bubble column) were characterized and compared for microalgae production. Hydrodynamics, mass transfer, and power consumption were determined for various aeration rates (0.9, 1.2, 1.5 L/min), and stirring speeds (100, 200 rpm), and Chlorella sorokiniana growth performance was compared under the conditions that provided the highest volumetric mass transfer and the lowest mixing time. Photo-bioreactor homogenization was good as indicated by low mixing times (< 10 s). Bubble column had the highest volumetric mass transfer due to its sparger design. Gas holdup and volumetric mass transfer coefficient were found to increase with the air flow rate and stirring speed. For stirred tank, bubble column, and airlift photobioreactors, maximum specific growth rates of C. sorokiniana were 0.053, 0.061, 0.057 h-1, and biomass productivities were 0.064, 0.097, 0.072 gdw/L.day, respectively. Under the conditions tested, growth was limited by the volumetric mass transfer in the airlift and stirred tank and bubble column was the best option for producing microalgae. These findings pave way for more extensive use of these systems in producing microalgae and provide a basis to compare photobioreactors of different designs.
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Affiliation(s)
- Basar Uyar
- Department of Chemical Engineering, Kocaeli University, Kocaeli, Turkey.
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Gezer E, Özer C, Şimşek T, Yaprak Bayrak B, Turan G, Çetinarslan B, Selek A, Cantürk Z, Sözen M, Köksalan D. N-Nitrosomorpholine-induced oncocytic transformation in rat endocrine organs. Eur J Med Res 2024; 29:64. [PMID: 38245764 PMCID: PMC10799477 DOI: 10.1186/s40001-024-01654-5] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 01/10/2024] [Indexed: 01/22/2024] Open
Abstract
BACKGROUND N-Nitrosomorpholine (NMO) is one of the most common N-nitroso compounds. An oncocytic transformation has been demonstrated in renal tubules of NMO-treated rats. In our study, we aimed to investigate the potential transformation of oncocytic cells in 6 endocrine organs, i.e., thyroid, adrenal and pituitary glands, pancreas, testis, and bone, of NMO-exposed rats. METHODS Thirty male rats were born and raised. Fifteen of them were given a single dose of 320 mg NMO per kg body weight, dissolved in drinking water, by a gavage tube. At the end of 52 weeks, the animals in both series were killed. Right after the killing, 6 different endocrine organs (hypophysis, thyroid, pancreas, adrenal gland, bone [femur], and testicles) of each animal were excised. RESULTS There was no evidence of oncocytic cell development in the control group. In contrast, oncocytes were observed in 8 out of 13 NMO-treated rats: 2 in the adrenal sections, 1 in the thyroid sections, 3 in the pituitary sections, and 2 in the pancreas sections. Thesticle and bone sections were completely normal. CONCLUSIONS We showed that NMO induced an oncocytic change in pancreas, thyroid, pituitary, and adrenal glands. To date, no identified specific environmental risk factors that lead to an oncocytic transformation in endocrine glands have been reported previously. Given the increasing prevalence of endocrine-disrupting chemicals in the environment, personal care products, manufactured goods, and food sources, there is a need to advance our understanding of the pathological mechanisms underlying oncocytosis in endocrine organs.
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Affiliation(s)
- Emre Gezer
- Division of Endocrinology and Metabolism, Darica Farabi Training and Research Hospital, Kocaeli, Turkey.
| | - Cüneyt Özer
- Experimental Medicine Research and Application Unit, Kocaeli University, Kocaeli, Turkey
| | - Turgay Şimşek
- Department of General Surgery, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey
| | - Büşra Yaprak Bayrak
- Department of Pathology, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey
| | - Gupse Turan
- Department of Pathology, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey
| | - Berrin Çetinarslan
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey
| | - Alev Selek
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey
| | - Zeynep Cantürk
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey
| | - Mehmet Sözen
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey
| | - Damla Köksalan
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kocaeli University, Kocaeli, Turkey
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Yanar S, Kanli A, Kasap M, Bal Albayrak MG, Eskiler GG, Ozkan AD. Synergistic effect of a nonsteroidal anti-inflammatory drug in combination with topotecan on small cell lung cancer cells. Mol Biol Rep 2024; 51:145. [PMID: 38236451 DOI: 10.1007/s11033-023-09055-3] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 10/23/2023] [Indexed: 01/19/2024]
Abstract
BACKGROUND The topoisomerase I inhibitor topotecan (TPT) is used in the treatment of recurrent small cell lung cancer (SCLC). However, the drug has a limited success rate and causes distress to patients due to its side effects, such as hematologic toxicities, including anemia and thrombocytopenia. Due to these pharmacokinetic limitations and undesirable side effects of chemotherapeutic drugs, the development of combination therapies has gained popularity in SCLC. Meclofenamic acid (MA), a nonsteroidal anti-inflammatory drug, has demonstrated anticancer effects on various types of cancers through different mechanisms. This study aims to investigate the potential synergistic effects of MA and TPT on the small cell lung cancer cell line DMS114. METHODS AND RESULTS To assess the cytotoxic and apoptotic effects of the combined treatment of MA and TPT, trypan blue exclusion assay, Annexin V, acridine orange/propidium iodide staining, western blot, and cell cycle analysis were conducted. The results demonstrated that the combination of MA and TPT elicited synergistic effects by enhancing toxicity in DMS114 cells (P < 0.01) without causing toxicity in healthy epithelial lung cells MRC5. The strongest synergistic effect was observed when the cells were treated with 60 µM MA and 10 nM TPT for 48 h (CI = 0,751; DRI = 10,871). CONCLUSION This study, for the first time, furnishes compelling evidence that MA and TPT synergistically reduce cellular proliferation and induce apoptosis in SCLC cells. Combinations of these drugs holds promise as a potential therapeutic strategy to improve efficacy and reduce the side effects associated with TPT.
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Affiliation(s)
- Sevinc Yanar
- Faculty of Medicine, Department of Medical Biology, Kocaeli University, Kocaeli, Turkey.
- Faculty of Medicine, Department of Histology and Embryology, Sakarya University, Korucuk, Sakarya, 54290, Turkey.
| | - Aylin Kanli
- Faculty of Medicine, Department of Medical Biology, Kocaeli University, Kocaeli, Turkey
| | - Murat Kasap
- Faculty of Medicine, Department of Medical Biology, Kocaeli University, Kocaeli, Turkey
| | | | - Gamze Guney Eskiler
- Faculty of Medicine, Department of Medical Biology, Sakarya University, Sakarya, Turkey
| | - Asuman Deveci Ozkan
- Faculty of Medicine, Department of Medical Biology, Sakarya University, Sakarya, Turkey
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Yılmaz Tuğan B, Sarıhan M, Kasap M, Akpınar G, Karabaş L, Şahin N, Yüksel N, Bayrak YE, Sönmez HE. Is tear proteome profile a predictor of developing uveitis in ANA-positive patients with oligoarticular juvenile idiopathic arthritis? Graefes Arch Clin Exp Ophthalmol 2024; 262:211-221. [PMID: 37773290 DOI: 10.1007/s00417-023-06251-6] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/17/2023] [Accepted: 09/19/2023] [Indexed: 10/01/2023] Open
Abstract
PURPOSE Although less than one-third of anti-nuclear antibody (ANA) positive patients with oJIA develop uveitis, ANA positivity is still the most well-known marker for assessing the risk of uveitis in oligoarticular JIA (oJIA). Therefore, novel biomarkers are needed to better assess the risk of developing uveitis. For this purpose, we performed a comparative tear proteome analysis of uveitis patients to reveal the identity of differentially regulated proteins. DESIGN Tear samples were collected using the Schirmer strips in 7 oJIA and 7 oJIA patients with uveitis (oJIA-U). All oJIA-U patients had developed bilateral anterior uveitis and were inactive and topical treatment-free. METHODS The nHPLC LC-MS/MS system was used for protein identification and label-free proteome comparisons. The PANTHER and STRING analyses were carried out using UniProt accession numbers of the identified proteins. RESULTS Patient characteristics, e.g., age, gender, disease duration, and treatments were similar. For protein identification, three different databases were searched. Twenty-two, 147, and 258 database searches, respectively. Of these, 15 were common to all three proteome databases. Of these 15 proteins, 10 proteins were upregulated, and 2 were downregulated, based on the twofold regulation criteria. The upregulated proteins were, namely, cystatin-S, secretoglobin family 1D member, opiorphin prepropeptide, mammaglobin-B, lysozyme C, mesothelin, immunoglobulin kappa constant, extracellular glycoprotein lacritin, beta-2-microglobulin, and immunoglobulin J chain. The downregulated proteins were dermcidin and prolactin-inducible protein. Among the differentially regulated proteins, cystatin-S was the most regulated protein with an 18-fold upregulation ratio in tear samples from uveitis patients. CONCLUSION Here, the identities and regulation ratios of several proteins were revealed when tear samples from uveitis patients were compared to patients without uveitis. These proteins are putative biomarkers for assessing uveitis risk and require further attention.
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Affiliation(s)
- Büşra Yılmaz Tuğan
- Department of Ophthalmology, Kocaeli University Faculty of Medicine, Kocaeli, Turkey.
| | - Mehmet Sarıhan
- Department of Basic Medical Sciences, Medical Biology, Kocaeli University Faculty of Medicine, Kocaeli, Turkey
| | - Murat Kasap
- Department of Basic Medical Sciences, Medical Biology, Kocaeli University Faculty of Medicine, Kocaeli, Turkey
| | - Gürler Akpınar
- Department of Basic Medical Sciences, Medical Biology, Kocaeli University Faculty of Medicine, Kocaeli, Turkey
| | - Levent Karabaş
- Department of Ophthalmology, Kocaeli University Faculty of Medicine, Kocaeli, Turkey
| | - Nihal Şahin
- Department of Pediatrics, Division of Pediatric Rheumatology, Kocaeli University Faculty of Medicine, Kocaeli, Turkey
| | - Nurşen Yüksel
- Department of Ophthalmology, Kocaeli University Faculty of Medicine, Kocaeli, Turkey
| | - Yunus Emre Bayrak
- Department of Pediatrics, Division of Pediatric Rheumatology, Kocaeli University Faculty of Medicine, Kocaeli, Turkey
| | - Hafize Emine Sönmez
- Department of Pediatrics, Division of Pediatric Rheumatology, Kocaeli University Faculty of Medicine, Kocaeli, Turkey
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Sözen M, Bayrak BY, Selek A, Şen HE, Çetinarslan B, Cantürk Z, Civriz AH, Balcı S, Gezer E, Köksalan D, Ceylan S. A reference center study in thyrotropin-secreting pituitary adenomas: clinicopathological, therapeutic and long-term follow-up outcomes. Endocrine 2023; 82:622-630. [PMID: 37561380 DOI: 10.1007/s12020-023-03480-x] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 08/01/2023] [Indexed: 08/11/2023]
Abstract
PURPOSE This study aims to analyze the clinicopathological features, diagnostic steps, and therapeutic results of TSHomas and to reveal the effective factors on remission. METHODS The clinical, radiological, and pathological features and surgical and endocrinological results of 41 TSHoma cases followed between 2005 and 2022 were retrospectively analyzed. The factors affecting the surgical cure were investigated by comparing the groups with and without remission. RESULTS A total of 41 patients (23 male,18 female) were included in the study and the mean age was 42 (31.5-49). Palpitation and headache were the most common complaints. The time from the onset of symptoms to diagnosis was 8 (3-20) months. There were 8 patients with a preoperative clinical and biochemical diagnosis of TSH + GH co-secretion. In the TRH stimulation test, a blunted TSH response was obtained in 18 patients (90.0%). Complete suppression could not be obtained in any of the patients who underwent the T3 suppression test. The median maximum tumor diameter was 19.0 mm (6.8-41). There was microadenoma in 4 (9.8%) patients and macroadenoma in 37 patients (92.8%). Remission was achieved in 31 (75.6%) of 40 patients who underwent endoscopic transsphenoidal surgery (eTSS). The Ki-67 labeling index was 2% (1.00-4.00) in the entire patient group. Preoperative use of antithyroid drugs appears to be significantly associated with surgical cure. CONCLUSION Diagnosis of TSHoma is still full of challenges and dynamic tests remain important. Recognition and good management of inappropriate TSH secretion states affect subsequent surgical outcomes.
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Affiliation(s)
- Mehmet Sözen
- Department of Endocrinology and Metabolism, Pituitary Research Center, Kocaeli University Faculty of Medicine, Kocaeli, Turkey.
| | - Büşra Yaprak Bayrak
- Department of Pathology, Kocaeli University Faculty of Medicine, Kocaeli, Turkey
| | - Alev Selek
- Department of Endocrinology and Metabolism, Pituitary Research Center, Kocaeli University Faculty of Medicine, Kocaeli, Turkey
| | - Harun Emre Şen
- Department of Neurosurgery, Pituitary Research Center, Kocaeli University Faculty of Medicine, Kocaeli, Turkey
| | - Berrin Çetinarslan
- Department of Endocrinology and Metabolism, Pituitary Research Center, Kocaeli University Faculty of Medicine, Kocaeli, Turkey
| | - Zeynep Cantürk
- Department of Endocrinology and Metabolism, Pituitary Research Center, Kocaeli University Faculty of Medicine, Kocaeli, Turkey
| | - Aziz Hakkı Civriz
- Department of Pathology, Kocaeli University Faculty of Medicine, Kocaeli, Turkey
| | - Sibel Balcı
- Department of Biostatistics and Medical Informatics, Kocaeli University Faculty of Medicine, Kocaeli, Turkey
| | - Emre Gezer
- Department of Endocrinology and Metabolism, Pituitary Research Center, Kocaeli University Faculty of Medicine, Kocaeli, Turkey
| | - Damla Köksalan
- Department of Endocrinology and Metabolism, Pituitary Research Center, Kocaeli University Faculty of Medicine, Kocaeli, Turkey
| | - Savaş Ceylan
- Department of Neurosurgery, Pituitary Research Center, Kocaeli University Faculty of Medicine, Kocaeli, Turkey
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Selek A, Halbutoğulları ZSU, Aydemir Çİ, Cetinarslan B, Canturk Z, Tarkun I, Erman G, Subaşı C, Erdal K. Letrozole Decreased Testosterone-Induced Cell Proliferation and Prolactin Secretion also Increased Apoptosis in MMQ and GH3 Rat Prolactinoma Cell Lines. Mol Neurobiol 2023; 60:2442-2454. [PMID: 36662360 DOI: 10.1007/s12035-023-03220-2] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 01/04/2023] [Indexed: 01/21/2023]
Abstract
Aromatase enzyme plays an essential role in estrogen-induced tumorigenesis. It is expressed in the normal pituitary and more significantly in prolactinoma tissues. The aim of this study was to investigate the effects of an aromatase inhibitor, letrozole, on MMQ and GH3 rat prolactinoma cell lines and evaluate the possible mechanism of action. MMQ and GH3 cells were characterized with demonstrating aromatase enzyme and estrogen receptor alpha expression by PCR and immunofluorescence staining. After dose optimization for testosterone (T) and letrozole (L), four groups were established: only the testosteron-treated group (T) to detect cell proliferation; only letrozole-treated group (L) to investigate apoptotic effects; testosterone and letrozole concomitant-treated group to demonstrate inhibition of testosterone induced cell proliferation with letrozole treatment s(T + L) and control group (C) with no treatment. The proliferation rate of cells was determined by WST-1. For the detection of apoptotic and necrotic cells, Annexin V and caspase-3 labeling was used. Prolactin and estrogen levels were measured with ELISA, and the mRNA expression of aromatase and Esr1 was also determined. Testosterone induced the proliferation of MMQ and GH3 cells and further increased prolactin and estradiol levels. Adding letrozole to testosterone resulted in decreased cellular proliferation and even induced apoptosis. Also, letrozole administration significantly decreased prolactin and estradiol levels. However, letrozole alone had no effects on proliferation and apoptosis. Gene expression of aromatase and Esr1 was also significantly decreased by letrozole treatment. This in vitro study demonstrated that treatment of testosterone proliferating cells with letrozole resulted in decreased prolactin levels and cell proliferation and induced apoptosis, and further loss of aromatase and Esr1 mRNA expression were observed. Although this is an in vivo study, the results showed unique and novel findings which may easily be adapted to clinical use for further verification.
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Affiliation(s)
- Alev Selek
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kocaeli University, Umuttepe Kocaeli, Turkey.
| | - Zehra Seda Unal Halbutoğulları
- Department of Medical Biology, Faculty of Medicine, Center for Stem Cell and Gene Therapies Research and Practice, Kocaeli University, Kocaeli University, Umuttepe Kocaeli, Turkey
| | | | - Berrin Cetinarslan
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kocaeli University, Umuttepe Kocaeli, Turkey
| | - Zeynep Canturk
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kocaeli University, Umuttepe Kocaeli, Turkey
| | - Ilhan Tarkun
- Department of Endocrinology and Metabolism, Faculty of Medicine, Kocaeli University, Umuttepe Kocaeli, Turkey
| | - Gülay Erman
- Department of Medical Biology, Faculty of Medicine, Sakarya University, Sakarya, Turkey
| | | | - Karaöz Erdal
- Center for Stem Cell and Tissue Engineering Research & Pracitce, İstinye University, İstanbul, Turkey
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Geduk¹ A, Oztas B, Eryılmaz BH, Demirsoy ET, Menguc MU, Unal S, Mersin S, Polat MG, Aygun K, Yenihayat EM, Albayrak H, Erol HA, Balcı S, Mehtap¹ O, Tarkun¹ P, Hacihanefioglu¹ A. Effects of AGEs, sRAGE and HMGB1 on Clinical Outcomes in Multiple Myeloma. Indian J Hematol Blood Transfus 2023; 39:220-227. [PMID: 37006982 PMCID: PMC10064350 DOI: 10.1007/s12288-022-01574-6] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 08/31/2022] [Indexed: 11/07/2022] Open
Abstract
Purpose The receptor for advanced glycation end products (RAGE) upregulated during the onset and progression of cancer and bone-related pathologies. In this study, we aimed to investigate the role of serum advanced glycation end products (AGEs), soluble RAGE (sRAGE) and high mobility group box 1 (HMGB1), in multiple myeloma (MM). Methods AGEs, sRAGE and HMGB1 concentrations of 54 newly diagnosed MM patients and 30 healthy volunteers were measured by ELISA. The estimations were done only once at diagnosis. The medical records of the patients were evaluated. Results There was no significant difference between the AGEs and sRAGE levels between the patient and control groups (p = 0.273, p = 0.313). In ROC analysis, a HMGB1 cutoff value of > 9170 pg/ml accurately discriminated MM patients (AUC = 0.672, 95% CI 0.561-0.77, p = 0.0034). AGEs level was found to be significantly higher in early-stage disease and HMGB1 in advanced disease (p = 0.022, p = 0.026). High HMGB1 levels were detected in patients whose with better first-line treatment response (p = 0.019). At 36 months, 54% of patients with low AGE were alive, compared to 79% of patients with high AGE (p = 0.055). Patients with high HMGB1 levels tended to have a longer PFS (median 43 mo [95% CI; 20.68-65.31] ) compared to patients with low HMGB1 levels (median 25 mo [95% CI; 12.39-37.6], p = 0.054). Conclusion In this study, a significant elevation of serum HMGB1 level was found in MM patients. In addition, the positive effects of RAGE ligands on treatment response and prognosis were determined.
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Affiliation(s)
- Ayfer Geduk¹
- Department of Hematology, Medical Faculty, Kocaeli University, 11.km, 41380 Umuttepe, Kocaeli, Turkey
| | - Berrin Oztas
- Department of Biochemistry, Medical Faculty, Kocaeli University, Kocaeli, Turkey
| | - Baldan Huri Eryılmaz
- Department of İnternal Medicine, Medical Faculty, Kocaeli University, Kocaeli, Turkey
| | - Esra Terzi Demirsoy
- Department of Hematology, Derince Training and Research Hospital, Health Sciences University, Kocaeli, Turkey
| | - Meral U. Menguc
- Department of Hematology, Medical Faculty, Bolu Abant İzzet Baysal University, Bolu, Turkey
| | - Serkan Unal
- Department of Hematology, Kastamonu Training and Research Hospital, Kastamonu, Turkey
| | - Sinan Mersin
- Department of Hematology, Medical Faculty, Kocaeli University, 11.km, 41380 Umuttepe, Kocaeli, Turkey
| | - Merve Gokcen Polat
- Department of Hematology, Medical Faculty, Kocaeli University, 11.km, 41380 Umuttepe, Kocaeli, Turkey
| | - Kemal Aygun
- Department of Hematology, Medical Faculty, Kocaeli University, 11.km, 41380 Umuttepe, Kocaeli, Turkey
| | - Emel Merve Yenihayat
- Department of Hematology, Medical Faculty, Kocaeli University, 11.km, 41380 Umuttepe, Kocaeli, Turkey
| | - Hayrunnisa Albayrak
- Department of Hematology, Medical Faculty, Kocaeli University, 11.km, 41380 Umuttepe, Kocaeli, Turkey
| | - Hasim Atakan Erol
- Department of Hematology, Medical Faculty, Kocaeli University, 11.km, 41380 Umuttepe, Kocaeli, Turkey
| | - Sibel Balcı
- Department of Biostatistics and Medical Informatics, Medical Faculty, Kocaeli University, Kocaeli, Turkey
| | - Ozgur Mehtap¹
- Department of Hematology, Medical Faculty, Kocaeli University, 11.km, 41380 Umuttepe, Kocaeli, Turkey
| | - Pinar Tarkun¹
- Department of Hematology, Medical Faculty, Kocaeli University, 11.km, 41380 Umuttepe, Kocaeli, Turkey
| | - Abdullah Hacihanefioglu¹
- Department of Hematology, Medical Faculty, Kocaeli University, 11.km, 41380 Umuttepe, Kocaeli, Turkey
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Aydin D, Yuksel B. Lessening the toxic effect of the methylisothiazolinone via vermicompost tea on Pisum sativum. Environ Sci Pollut Res Int 2022; 29:50443-50453. [PMID: 35233668 DOI: 10.1007/s11356-022-19396-4] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 02/20/2022] [Indexed: 06/14/2023]
Abstract
Biocides, which are found in nature as persistent pollutants, pose a great danger to the ecosystem. Methylisothiazolinone (MIT), a widely used biocide, reaches plants by mixing with water and soil. Vermicompost tea (VCT), which strengthens the plant defence mechanism and increases its growth and development, is a liquid fertiliser consisting of the cooperation of worms with microbes. In the present study, after applying 0.4 g/L (EC50/2), 0.8 g/L (EC50), and 1.6 g/L (EC50 × 2) MIT concentrations without and with VCT on forage pea (Pisum sativum), root lengths, mitotic index data, chromosome and nuclei abnormalities, and DNA damage level were determined. When VCT applied and non-applied groups were compared, it was found that, especially in the VCT applied group, they cope with the stress conditions created by MIT. In addition, positive effects were observed in root lengths, mitotic index data, and amount of cell nuclei abnormalities. In line with other study results, VCT reduces cellular damage by regulating the normal life cycle disrupted in the cell due to mutagens using the curative-regulatory feature.
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Affiliation(s)
- Duygu Aydin
- Department of Biology, Faculty of Literature and Science, Kocaeli University, 41380, Kocaeli, Turkey.
| | - Burcu Yuksel
- Medical Lab. Tech, Vocational School of Kocaeli Health Services, Kocaeli University, 41380, Kocaeli, Turkey
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Sevimli-Gur C, Yesil-Celiktas O. Cytotoxicity screening of supercritical fluid extracted seaweeds and phenylpropanoids. Mol Biol Rep 2019; 46:3691-3699. [PMID: 31004301 DOI: 10.1007/s11033-019-04812-9] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 04/10/2019] [Indexed: 12/21/2022]
Abstract
Detached leaves of Posidonia oceanica and Zostera marina creating nuisance at the shores were extracted by means of supercritical CO2 enriched with a co-solvent, compared with that of soxhlet extraction. The extracts and their active compounds which are phenylpropanoids (chicoric, p-coumaric, rosmarinic, benzoic, ferulic and caffeic acids) were screened for cytotoxicity in cancer cell lines including human breast adenocarcinoma (MCF-7, MDA-MB-231, SK-BR-3), human colon adenocarcinoma (HT-29), human cervix adenocarcinoma (HeLa), human prostate adenocarcinoma (PC-3), Mus musculus neuroblastoma (Neuro 2A) cell lines and African green monkey kidney (VERO) as healthy cell line. Supercritical CO2 extracts proved to be more active than soxhlet counterparts. Particularly, Zostera marina extract obtained by supercritical CO2 at 250 bar, 80 °C, 20% co-solvent and a total flow rate of 15 g/min revealed the best IC50 values of 25, 20, 8 μg/ml in neuroblastoma, colon and cervix cancer cell lines. Among the major compounds tested, p-coumaric acid exhibited the highest cytotoxic against colon and cervix cell lines by with IC50 values of 25, 11 μg/ml. As for the effects on healthy cells, the extract was not cytotoxic indicating a selective cytotoxicity. Obtained supercritical CO2 extracts can be utilized as a supplement for preventive purposes.
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Affiliation(s)
- Canan Sevimli-Gur
- Department of Biology, Biotechnology Discipline, Science and Art Faculty, Kocaeli University, 41380, Izmit, Kocaeli, Turkey
| | - Ozlem Yesil-Celiktas
- Department of Bioengineering, Faculty of Engineering, Ege University, 35100, Bornova, Izmir, Turkey.
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Teke K, Guzel N, Uslubas AK, Kasap M, Yilmaz H, Akpinar G, Yildiz DK, Dillioglugil O. Monitoring the response of urothelial precancerous lesions to Bacillus Calmette-Guerin at the proteome level in an in vivo rat model. Cancer Immunol Immunother 2018; 67:67-77. [PMID: 28916862 PMCID: PMC11028241 DOI: 10.1007/s00262-017-2063-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 09/08/2017] [Indexed: 12/12/2022]
Abstract
Intravesical Bacillus Calmette-Guerin (BCG) is the best treatment modality for progression of non-muscle invasive bladder cancer. We aimed to monitor changes at the proteome level to identify putative protein biomarkers associated with the response of urothelial precancerous lesions to intravesical BCG treatment. The rats were divided into three groups (n = 10/group): control, non-treated, and BCG-treated groups. The non-treated and BCG-treated groups received N-methyl-N-nitrosourea intravesically. BCG Tice-strain was instilled into bladder in BCG-treated group. At the endpoint of experiment, all surviving rat bladders were collected and equally divided into two portions vertically from dome to neck. Half of each bladder was assessed immunohistopathologically and the other half was used for 2D-based comparative proteomic analysis. Differentially expressed proteins were validated by Western blot analysis. Precancerous lesions of bladder cancer were more common in non-treated group (77.8%) than in BCG-treated group (50%) and the control group (0%). Greater than twofold changes occurred in the expression of a number of proteins. Among them, Rab-GDIβ, aldehyde dehydrogenase 2 (ALDH2) and 14-3-3 zeta/delta were important since they were previously reported to be associated with cancer and their expression levels were found to be lower in BCG-treated group in comparison to the non-treated group. ALDH2 and 14-3-3 zeta/delta were also found to be highly expressed in the non-treated group compared to the control group. The down-regulation of these proteins and Rab-GDIβ was achieved with BCG; this result indicates that they may be used as putative biomarkers for monitoring changes in bladder carcinogenesis in response to BCG immunotherapy.
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Affiliation(s)
- Kerem Teke
- Department of Urology, Kocaeli University School of Medicine, Umuttepe Campus, 41380, Kocaeli, Turkey.
| | - Nil Guzel
- Department of Molecular Biology, Kocaeli University School of Medicine, Kocaeli, Turkey
| | - Ali Kemal Uslubas
- Department of Urology, Kocaeli University School of Medicine, Umuttepe Campus, 41380, Kocaeli, Turkey
| | - Murat Kasap
- Department of Molecular Biology, Kocaeli University School of Medicine, Kocaeli, Turkey
| | - Hasan Yilmaz
- Department of Urology, Kocaeli University School of Medicine, Umuttepe Campus, 41380, Kocaeli, Turkey
| | - Gurler Akpinar
- Department of Molecular Biology, Kocaeli University School of Medicine, Kocaeli, Turkey
| | - Demir Kursat Yildiz
- Department of Pathology, Kocaeli University School of Medicine, Kocaeli, Turkey
| | - Ozdal Dillioglugil
- Department of Urology, Kocaeli University School of Medicine, Umuttepe Campus, 41380, Kocaeli, Turkey
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