Z. Sahin | S. Sandal | B. Yılmaz | O. Bulmus | G. Ozdemir | S. Kutlu | H. Kelestimur

Article | 2018 | Cellular and Molecular Biology64 ( 14 ) , pp.25 - 30

Melatonin, produced mainly by the pineal gland, has an immunomodulatory role. However, the effects of the pineal gland and/or melatonin on thymus cytokine levels such as interferon-gamma (IFN-?), interleukin (IL)-4, and IL-10 are not well known. Twenty-one male Wistar rats (220-250 gr) were randomly divided into three groups (n=7): intact control, sham, and pinealectomy. Primary thymocyte cultures were prepared from each group and dispensed into well plates as Control, DMSO (or vehicle), Sham-pinealectomy, Pinealectomy, Pinealectomy+10µM melatonin, and Pinealectomy+100µM melatonin. IFN-?, IL-4, and IL-10 concentrations were measured . . . in the thymocytes (as nonstimulated and Concanavalin A-stimulated) after 24 h. IFN-? levels significantly increased and IL-10 levels significantly decreased in both media prepared from pinealectomized rats. There was no significant difference between the groups in terms of IL-4. In the pinealectomy+10µM melatonin group, IFN-? and IL-10 levels did not differ from the pinealectomy group. However, the dose of 100µM melatonin caused a decrease in levels of IFN-? in both thymocyte media and an increase in the concentration of IL-10 in Concanavalin A-stimulated thymocytes. In conclusion, pineal gland and/or melatonin affect IFN-? and IL-10 levels in the thymus gland. © 2018 by the C.M.B. Association. All rights reserved Daha fazlası Daha az

Kuran, S.B. | Iplik, E.S. | Cakmakoglu, B. | Kahraman, O.T. | Iyibozkurt, A.C. | Koc, A. | İşbir, Turgay

Article | 2018 | Cellular and Molecular Biology64 ( 4 ) , pp.78 - 82

Reactive oxygen species (ROS) have been shown to be responsible for inducing DNA damage leading to mutagenesis, carcinogenesis, and cell death if the capacity of the protective antioxidant system is impaired. Endometrial carcinoma is the primary cancer type in the female genital system. The enhanced cell lipid peroxidation and impaired antioxidant enzyme activities observed in patients with endometrial cancer indicate the potential for oxidative injury to cells and cell membranes in such patients. The aim of the study was to investigate the possible association between gene variants of superoxide dismutase (SOD), myeloperoxidase (MP . . .O), and NADPH quinone oxido reductase (NQO1), and their possible role in endometrial cancer in Turkish patients. According to results, MPO G+ genotype and AG genotype were significantly increased in patients compared with controls ( Daha fazlası Daha az

Lin, X. | Ozbey, U. | Sabitaliyevich, U.Y. | Attar, Rukset | Ozcelik, B. | Zhang, Y. | Farooqi, A.A.

Article | 2018 | Cellular and Molecular Biology64 ( 10 ) , pp.87 - 91

Maslinic acid (2?,3ß-dihydroxyolean-12-en-28-oic acid) is a naturally occurring pentacyclic triterpenic compound. Maslinic acid is gradually gaining attention as an excellent pharmacologically active product because of its premium biological properties. In this review we will focus on chemopreventive properties of Maslinic acid against different cancers. Seemingly, available data is limited and we have yet to unravel how Maslinic acid therapeutically targeted oncogenic cell signal transduction cascades in different cancers. Moreover, there are visible knowledge gaps about the ability of Maslinic acid to modulate oncogenic and tumor . . .suppressor microRNAs in various cancers. © 2018 by the C.M.B. Association Daha fazlası Daha az

Kirac, D. | Yazan, C.D. | Gezmis, H. | Yaman, A. | Haklar, G. | Sirikci, O. | Deyneli, O.

Article | 2018 | Cellular and Molecular Biology6 ( 3 ) , pp.11 - 16

Type 1 diabetes mellitus (T1DM) is an insulin dependent autoimmune disorder resulting the progressive destruction of pancreatic beta cells. Another possible factor considered to be related with T1DM is vitamin D deficiency. Therefore in this study it was aimed to investigate the associations between T1DM, vitamin D binding protein (VDBP) and vitamin D receptor (VDR) gene mutations which are related with vitamin D metabolism. Fifty five T1DM paitents and 40 healthy volunteers were recruited to the study. FokI (rs2228570), BsmI (rs1544410) mutations in VDR; rs4588 and rs7041 polymorphisms in VDBP were investigated with real-time polym . . .erase chain reaction (RT-PCR). Other risk factors related with T1DM were also investigated. Results were evaluated statistically. Statistically significant relations were found in glucose, HbA1c, TSH, higher 25[OH]D, free vitamin D, calcium, albumin, log25[OH]D, retinopathy, higher than 30 mg/day microalbuminuria in T1DM patients. Also statistically significant association was found between C allele in Fok1 and T1DM in patients. When the relation between the risk factors and mutations were investigated, it was found that VDBP, free vitamin D and bioactive vitamin D were significantly associated with rs7041 mutation in VDBP whereas HDL was significantly associated with rs2228570 mutation in VDR. Other studies with larger data sets may demonstrate more reliable statistical results to rule out genotype-phenotype correlations of the disease. © 2018 by the C.M.B. Association Daha fazlası Daha az

Farooqi, A.A. | Attar, Rukset | Yaylim, I. | Qureshi, M.Z. | Todorovska, M. | Karatoprak, G.S. | Lin, X.

Article | 2018 | Cellular and Molecular Biology64 ( 11 ) , pp.102 - 107

Piperlongumine is a biologically and pharmacologically active constituent of the plant Piper longum. This compound is gradually gaining attention because of its ability to inhibit/prevent different cancers. Modern era of molecular oncology is incomplete without ground-breaking discoveries made in the field of cell signaling pathways. High-throughput technologies have considerably improved our understanding about wide ranging signal transduction cascades which play crucial role in cancer development and progression. It is exciting to note that piperlongumine has been shown to pleiotropically modulate different oncogenic signaling pat . . .hways. We partition this multi-component review into discrete sections and categorically summarize key findings related to excellent ability of piperlongumine to therapeutically target JAK-STAT, NF-kB and PI3K/AKT/mTOR pathways. We also set spotlight on regulation of TRAIL pathway and autophagy by piperlongumine in different cancers. On the basis of the current understanding of piperlongumine, molecular biologists and pharmacologists will develop the next generation of translational studies, which will prove to be helpful in improving the clinical outcome and getting a step closer to personalized medicine. © 2018 by the C.M.B. Association. All rights reserved Daha fazlası Daha az

Farooqi, A.A. | Attar, Rukset | Qureshi, M.Z. | Fayyaz, S. | Sohail, M.I. | Sabitaliyevich, U.Y. | Alaaeddine, N.

Article | 2018 | Cellular and Molecular Biology64 ( 15 ) , pp.1 - 6

Based on the exciting insights gleaned from decades of ground-breaking research, it has become evident that deregulated signaling pathways play instrumental role in cancer development and progression. Interestingly discovery of non-coding RNAs has revolutionized our understanding related to transcription, post-transcription and translation. Modern era has witnessed landmark discoveries in the field of molecular cancer and non-coding RNA biology has undergone tremendous broadening. There has been an exponential growth in the list of publications related to non-coding RNAs and overwhelmingly increasing classes of non-coding RNAs are a . . .dding new layers of complexity to already complicated nature of cancer. Regulation of TGF/SMAD signaling by miRNAs and LncRNAs has opened new horizons for therapeutic targeting of TGF/SMAD pathway. In this review we have set spotlight on central role of LncRNAs in modulation of TGF/ SMAD pathway. Major proportion of the available evidence is underlining positive role of LncRNAs in contextual regulation of TGF/SMAD pathway. LncRNAs are vital to these regulatory networks because they provide a background support to make the TGF/SMAD mediated intracellular signaling more smooth or make transduction cascade more flexible in response to cues from extracellular environment. Therefore, in accordance with this notion, MALAT1, OIP5-AS1, MIR100HG, HOTAIR, ANRIL, PVT1, AFAP1-AS1, SPRY4-IT, ZEB2NAT, TUG1 and Lnc-SNHG1 have been reported to positively regulate TGF/SMAD signaling. In this review, we have focused on the regulation of TGF/SMAD signaling by LncRNAs and how these non-coding RNAs can be therapeutically exploited. Short-interfering RNA (siRNA) and natural products are currently being tested for efficacy against different LncRNAs. Nanotechnological strategies to efficiently deliver LncRNA-targeting siRNAs are also currently being investigated in different cancers. © 2018 by the C.M.B. Association. All rights reserved Daha fazlası Daha az