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Melatonin and cancer

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https://www.readbyqxmd.com/read/28933733/melatonin-decreases-glucose-metabolism-in-prostate-cancer-cells-a-13-c-stable-isotope-resolved-metabolomic-study
#1
David Hevia, Pedro Gonzalez-Menendez, Mario Fernandez-Fernandez, Sergio Cueto, Pablo Rodriguez-Gonzalez, Jose I Garcia-Alonso, Juan C Mayo, Rosa M Sainz
The pineal neuroindole melatonin exerts an exceptional variety of systemic functions. Some of them are exerted through its specific membrane receptors type 1 and type 2 (MT1 and MT2) while others are mediated by receptor-independent mechanisms. A potential transport of melatonin through facilitative glucose transporters (GLUT/SLC2A) was proposed in prostate cancer cells. The prostate cells have a particular metabolism that changes during tumor progression. During the first steps of carcinogenesis, oxidative phosphorylation is reactivated while the switch to the "Warburg effect" only occurs in advanced tumors and in the metastatic stage...
July 26, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28933565/sleep-duration-nightshift-work-and-the-timing-of-meals-and-urinary-levels-of-8-isoprostane-and-6-sulfatoxymelatonin-in-japanese-women
#2
Chisato Nagata, Takashi Tamura, Keiko Wada, Kie Konishi, Yuko Goto, Yasuko Nagao, Kazuhiro Ishihara, Satoru Yamamoto
It has been hypothesized that disruption of circadian rhythms affects human health. Shift work and sleep deprivation are thought to disrupt the normal light-dark cycle, although the disruption due to shiftwork may be dependent on sleep deprivation. Both conditions have been suggested to be associated with an increased risk of cardiometabolic disorders. Non-photic environmental factors, such as the timing of eating, are also thought to regulate circadian rhythm and thus, may have effects on health, but the evidence from human studies is scarce...
September 21, 2017: Chronobiology International
https://www.readbyqxmd.com/read/28886600/outdoor-light-at-night-and-breast-cancer-incidence-in-the-nurses-health-study-ii
#3
Peter James, Kimberly A Bertrand, Jaime E Hart, Eva S Schernhammer, Rulla M Tamimi, Francine Laden
BACKGROUND: Animal and epidemiologic studies suggest that exposure to light at night (LAN) may disrupt circadian patterns and decrease nocturnal secretion of melatonin, which may disturb estrogen regulation, leading to increased breast cancer risk. OBJECTIVES: We examined the association between residential outdoor LAN and breast cancer incidence using data from the nationwide U.S.-based Nurses' Health Study II cohort. METHODS: We followed 109,672 women from 1989 through 2013...
August 17, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28882945/melatonin-synergizes-the-chemotherapeutic-effect-of-cisplatin-in-ovarian-cancer-cells-independently-of-mt1-melatonin-receptors
#4
Agata Zemła, Irmina Grzegorek, Piotr Dzięgiel, Karolina Jabłońska
BACKGROUND/AIM: Melatonin (MLT), through the interaction with membrane melatonin receptors MT1, can improve the effectiveness of cytostatic agents, including cisplatin (CP). The aim of this study was to examine the synergistic effect of MLT and CP in three cell lines: IOSE 364, SK-OV-3 and OVCAR-3, as well as to assess the role of MT1 receptors in this mechanism. MATERIALS AND METHODS: Using the SRB assay we investigated the effect of different concentrations of CP and MLT on cell viability...
September 2017: In Vivo
https://www.readbyqxmd.com/read/28880375/melatonin-does-it-have-utility-in-the-treatment-of-hematologic-neoplasms
#5
REVIEW
Tian Li, Zhi Yang, Shuai Jiang, Wencheng Di, Zhiqiang Ma, Wei Hu, Fulin Chen, Russel J Reiter, Yang Yang
Melatonin, discovered in 1958 in the bovine pineal tissue, is an indoleamine that modulates circadian rhythms and has a wide variety of other functions. Hematologic neoplasms are the leading cause of death in children and adolescents throughout the world. Research has demonstrated that melatonin is a low-toxicity protective molecule against experimental hematological neoplasms, but the mechanisms remain poorly defined. Herein, we provide an introduction to hematologic neoplasms and melatonin, especially as they relate to the actions of melatonin on hematologic carcinogenesis...
September 7, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28878191/melatonin-and-hippo-pathway-is-there-existing-cross-talk
#6
Federica Lo Sardo, Paola Muti, Giovanni Blandino, Sabrina Strano
Melatonin is an indolic hormone that regulates a plethora of functions ranging from the regulation of circadian rhythms and antioxidant properties to the induction and maintenance of tumor suppressor pathways. It binds to specific receptors as well as to some cytosolic proteins, leading to several cellular signaling cascades. Recently, the involvement of melatonin in cancer insurgence and progression has clearly been demonstrated. In this review, we will first describe the structure and functions of melatonin and its receptors, and then discuss both molecular and epidemiological evidence on melatonin anticancer effects...
September 6, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28870443/light-at-night-as-an-environmental-endocrine-disruptor
#7
REVIEW
Kathryn L G Russart, Randy J Nelson
Environmental endocrine disruptors (EEDs) are often consequences of human activity; however, the effects of EEDs are not limited to humans. A primary focus over the past ∼30years has been on chemical EEDs, but the repercussions of non-chemical EEDs, such as artificial light at night (LAN), are of increasing interest. The sensitivity of the circadian system to light and the influence of circadian organization on overall physiology and behavior make the system a target for disruption with widespread effects...
September 6, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28833461/melatonin-limits-paclitaxel-induced-mitochondrial-dysfunction-in-vitro-and-protects-against-paclitaxel-induced-neuropathic-pain-in-the-rat
#8
Helen F Galley, Barry McCormick, Kirsten L Wilson, Damon A Lowes, Lesley Colvin, Carole Torsney
Chemotherapy-induced neuropathic pain is a debilitating and common side effect of cancer treatment. Mitochondrial dysfunction associated with oxidative stress in peripheral nerves has been implicated in the underlying mechanism. We investigated the potential of melatonin, a potent antioxidant that preferentially acts within mitochondria, to reduce mitochondrial damage and neuropathic pain resulting from the chemotherapeutic drug paclitaxel. In vitro, paclitaxel caused a 50% reduction of mitochondrial membrane potential and metabolic rate, independent of concentration (20-100μM)...
August 22, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28820142/nanomelatonin-triggers-superior-anticancer-functionality-in-a-human-malignant-glioblastoma-cell-line
#9
Sanjeev Kumar Yadav, Anup Kumar Srivastava, Atul Dev, Babita Kaundal, Subhasree Roy Choudhury, Surajit Karmakar
Melatonin (MEL) has promising medicinal value as an anticancer agent in a variety of malignancies, but there are difficulties in achieving a therapeutic dose due to its short half-life, low bioavailability, poor solubility and extensive first-pass metabolism. In this study chitosan/tripolyphosphate (TPP) nanoparticles were prepared by an ionic gelation method to overcome the therapeutic challenges of melatonin and to improve its anticancer efficacy. Characterization of the melatonin-loaded chitosan (MEL-CS) nanoformulation was performed using transmission and scanning electron microscopies, dynamic light scattering, Fourier transform infrared spectroscopy, Raman spectroscopy and x-ray diffraction...
August 18, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28819759/melatonin-increases-the-effect-of-5-fluorouracil-based-chemotherapy-in-human-colorectal-adenocarcinoma-cells-in-vitro
#10
Roberto Pariente, Ignacio Bejarano, Ana Beatriz Rodríguez, José Antonio Pariente, Javier Espino
Melatonin has antitumor activity via several mechanisms including its anti-proliferative and pro-apoptotic effects. Moreover, it has been proven that melatonin in combination with chemotherapeutic agents enhances chemotherapy-triggered apoptosis in several types of cancer. Therefore, this study was intended to evaluate whether melatonin is able to strengthen the anti-cancer potential of different chemotherapeutic drugs in human colorectal adenocarcinoma HT-29 cells. We found that treatment with 20 µM cisplatin (CIS) or 1 mM 5-fluorouracil (5-FU) for 72 h induced a decrease in HT-29 cell viability...
August 17, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28801373/metformin-and-melatonin-in-adrenocortical-carcinoma-morphoproteomics-and-biomedical-analytics-provide-proof-of-concept-in-a-case-study
#11
Robert E Brown, Jamie Buryanek, Mary F McGuire
Metformin has been proposed as a novel anti-cancer drug for adrenocortical carcinoma (ACC) based upon Poli's recent preclinical studies that 1. "in vitro" metformin modulates the ACC cell model H295R and 2. "in vivo" metformin inhibits tumor growth in a xenograft model as confirmed by a significant reduction of Ki67 [1]. Here we report on our prior clinical case study that provides proof of concept for Poli's studies. We were requested to perform morphoproteomic analysis to further define the biology of, and raise targeted therapeutic options, for a case of post-treatment and chemoresistant ACC metastatic to the liver and the lung...
August 2017: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/28771183/molecular-interactions-of-autophagy-with-the-immune-system-and-cancer
#12
REVIEW
Yunho Jin, Yunkyung Hong, Chan Young Park, Yonggeun Hong
Autophagy is a highly conserved catabolic mechanism that mediates the degradation of damaged cellular components by inducing their fusion with lysosomes. This process provides cells with an alternative source of energy for the synthesis of new proteins and the maintenance of metabolic homeostasis in stressful environments. Autophagy protects against cancer by mediating both innate and adaptive immune responses. Innate immune receptors and lymphocytes (T and B) are modulated by autophagy, which represent innate and adaptive immune responses, respectively...
August 3, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28770538/night-shift-work-and-risk-of-breast-cancer
#13
REVIEW
Johnni Hansen
PURPOSE OF REVIEW: Night work is increasingly common and a necessity in certain sectors of the modern 24-h society. The embedded exposure to light-at-night, which suppresses the nocturnal hormone melatonin with oncostatic properties and circadian disruption, i.e., misalignment between internal and external night and between cells and organs, are suggested as main mechanisms involved in carcinogenesis. In 2007, the International Agency for Research on Cancer (IARC) classified shift work that involves circadian disruption as probably carcinogenic to humans based on limited evidence from eight epidemiologic studies on breast cancer, in addition to sufficient evidence from animal experiments...
August 2, 2017: Current Environmental Health Reports
https://www.readbyqxmd.com/read/28767392/melatonin-suppresses-hepatocellular-carcinoma-progression-via-lncrna-cps1-it-mediated-hif-1%C3%AE-inactivation
#14
Tong-Hong Wang, Chi-Hao Wu, Chau-Ting Yeh, Shih-Chi Su, Shih-Min Hsia, Kung-Hao Liang, Chin-Chuan Chen, Chuen Hsueh, Chi-Yuan Chen
Melatonin is the primary pineal hormone that relays light/dark cycle information to the circadian system. It was recently reported to exert intrinsic antitumor activity in various cancers. However, the regulatory mechanisms underlying the antitumor activity of melatonin are poorly understood. Moreover, a limited number of studies have addressed the role of melatonin in hepatocellular carcinoma (HCC), a major life-threatening malignancy in both sexes in Taiwan. In this study, we investigated the antitumor effects of melatonin in HCC and explored the regulatory mechanisms underlying these effects...
July 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28739305/melatonin-as-a-multifunctional-anti-cancer-molecule-implications-in-gastric-cancer
#15
REVIEW
Mohammad Hossein Asghari, Milad Moloudizargari, Emad Ghobadi, Marjan Fallah, Mohammad Abdollahi
Gastric cancer (GC) is a predominant malignancy with a high mortality rate affecting a large population worldwide. The etiology of GC is multifactorial spanning from various genetic determinants to different environmental causes. Current tretaments of GC are not efficient enough and require improvements to minimize the adverse effects. Melatonin, a naturally occurring compound with known potent inhibitory effects on cancer cells is one of the major candidates which can be recruited herein. Here we reviewed the articles conducted on the therapeutic effects of melatonin in gastric cancer in various models...
September 15, 2017: Life Sciences
https://www.readbyqxmd.com/read/28732061/melatonin-pre-treatment-mitigates-shsy-5y-cells-against-oxaliplatin-induced-mitochondrial-stress-and-apoptotic-cell-death
#16
Mohammad Waseem, Upasana Sahu, Mohd Salman, Arnab Choudhury, Sudeshna Kar, Heena Tabassum, Suhel Parvez
Oxaliplatin (Oxa) treatment to SH-SY5Y human neuroblastoma cells has been shown by previous studies to induce oxidative stress, which in turn modulates intracellular signaling cascades resulting in cell death. While this phenomenon of Oxa-induced neurotoxicity is known, the underlying mechanisms involved in this cell death cascade must be clarified. Moreover, there is still little known regarding the roles of neuronal mitochondria and cytosolic compartments in mediating Oxa-induced neurotoxicity. With a better grasp of the mechanisms driving neurotoxicity in Oxa-treated SH-SY5Y cells, we can then identify certain pathways to target in protecting against neurotoxic cell damage...
2017: PloS One
https://www.readbyqxmd.com/read/28724215/melatonin-inhibits-proliferation-and-invasion-via-repression-of-mirna-155-in-glioma-cells
#17
Junyi Gu, Zhongsheng Lu, Chenghong Ji, Yuchao Chen, Yuzhao Liu, Zhe Lei, Longqiang Wang, Hong-Tao Zhang, Xiangdong Li
Melatonin, an indolamine mostly synthesized in the pineal gland, exerts the anti-cancer effect by various mechanisms in glioma cells. Our previous study showed that miR-155 promoted glioma cell proliferation and invasion. However, the question of whether melatonin may inhibit glioma by regulating miRNAs has not yet been addressed. In this study, we found that melatonin (100μM, 1μM and 1nM) significantly inhibited the expression of miR-155 in human glioma cell lines U87, U373 and U251. Especially, the lowest expression of miR-155 was detected in 1μM melatonin-treated glioma cells...
September 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28721827/melatonin-as-pleiotropic-molecule-with-therapeutic-potential-for-type-2-diabetes-and-cancer
#18
Marzena Wojcik, Michal Krawczyk, Pawel Wojcik, Katarzyna Cypryk, Lucyna Alicja Wozniak
The incidence both of diabetes, particularly type 2 (T2DM), and cancer is increasing worldwide, making these diseases growing global health problem along with increasing healthcare expenditures. The current therapeutic approach for the treatment of these multifactorial diseases is far from satisfactory. Therefore, there is still considerable interest in searching new therapeutic strategies with the use of both natural and synthetic compounds exhibiting higher efficiency and lower toxicity compared to medicines used currently in clinical practice...
July 18, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28720269/relationships-of-salivary-cortisol-and-melatonin-rhythms-to-sleep-quality-emotion-and-fatigue-levels-in-patients-with-newly-diagnosed-lung-cancer
#19
Wen-Pei Chang, Chia-Chin Lin
PURPOSE: After being diagnosed with lung cancer, patients often experience sleep disturbance, anxiety, depression, and fatigue. These symptoms may occur because of changes in neurotransmitter secretion caused by tumors. This study investigated the correlation of cortisol and melatonin rhythms with sleep quality, anxiety, depression, and fatigue levels in patients with newly diagnosed lung cancer. METHOD: We conducted a case-control study and recruited 40 patients with newly diagnosed lung cancer and 40 healthy adults...
August 2017: European Journal of Oncology Nursing: the Official Journal of European Oncology Nursing Society
https://www.readbyqxmd.com/read/28706222/urinary-6-sulfatoxymelatonin-level-and-breast-cancer-risk-systematic-review-and-meta-analysis
#20
Jing Xu, Lei Huang, Guo-Ping Sun
6-Sulfatoxymelatonin (aMT6s) is the main metabolite of melatonin in urine, and is a reliable surrogate biomarker reflecting the blood melatonin concentration. This meta-analysis assessed the association between urinary aMT6s level and BC incidence. The electronic databases PubMed, EMBASE, Cochrane Library, and Web of Science were searched. Risk ratios (RRs) were adopted to estimate the relative BC incidence. A total of 7 prospective case-control publications were included, and 6 of them were distinct studies...
July 13, 2017: Scientific Reports
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