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Singh A, Verma N, Kant S, Verma AK, Tripathi A, Bhardwaj K. Impact of Flaxseed Oil Supplementation on Tobacco Dependence, Craving, and Haematological Parameters in Tobacco-Dependent Subjects. Cureus 2024; 16:e57101. [PMID: 38681370 PMCID: PMC11054311 DOI: 10.7759/cureus.57101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/27/2024] [Indexed: 05/01/2024] Open
Abstract
Background Tobacco is prevalently used in smoking or smokeless forms and remains a major public health concern worldwide, with its adverse effects on overall health. Omega-3 fatty acid (FA) has shown its promising effects in various health conditions. Objective The purpose of this study was to evaluate the effect of flaxseed oil (omega-3 supplementation) on tobacco dependence, craving, withdrawal symptoms, and haematological parameters in tobacco users. Methods In this randomised, single-blind, placebo-controlled study, 104 tobacco users (54 in the omega-3 group and 50 in the placebo group) were supplemented with 10 ml of food-grade flaxseed oil and 10 ml of placebo for six months, respectively. Their demographics, frequency of daily tobacco use, tobacco dependence, tobacco craving, tobacco withdrawal symptoms, and complete blood count (CBC) were assessed at baseline (before intervention) and after a six-month intervention. Results The demographic characteristics of the two groups were similar except for gender at baseline. There were 50 males and four females in the omega-3 group, while there were 42 males and eight females in the placebo group. After a six-month flaxseed oil intervention, BMI values showed a significant reduction (p = 0.0081) in the omega-3 group when compared to baseline; however, CBC parameters did not show any significant changes when comparing baseline to follow-up values. On the contrary, haemoglobin and red blood cells (RBCs) showed significant changes when comparing the follow-ups of the omega-3 group with the placebo group, indicating p = 0.0016 and p = 0.0163, respectively. Also, omega-3 effectively decreased daily tobacco use frequency (p<0.0001), tobacco dependence (p<0.0001), and craving (p<0.0001). Conclusion Supplementation of 10 ml of flaxseed oil per day (omega-3 FA) for six months significantly reduced tobacco dependence and cravings. Additionally, the flaxseed oil supplementation effectively reduced the frequency of daily tobacco intake and modulated tobacco withdrawal symptoms. Thus, our results suggest that flaxseed oil supplementation is a useful adjunct for tobacco users who intend to quit tobacco use.
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Affiliation(s)
- Anjali Singh
- Department of Physiology, King George's Medical University, Lucknow, IND
| | - Narsingh Verma
- Department of Physiology, King George's Medical University, Lucknow, IND
| | - Surya Kant
- Department of Respiratory Medicine, King George's Medical University, Lucknow, IND
| | - Ajay K Verma
- Department of Respiratory Medicine, King George's Medical University, Lucknow, IND
| | - Adarsh Tripathi
- Department of Psychiatry, King George's Medical University, Lucknow, IND
| | - Kshitij Bhardwaj
- Department of Physiology, King George's Medical University, Lucknow, IND
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Elisia I, Yeung M, Kowalski S, Wong J, Rafiei H, Dyer RA, Atkar-Khattra S, Lam S, Krystal G. Omega 3 supplementation reduces C-reactive protein, prostaglandin E 2 and the granulocyte/lymphocyte ratio in heavy smokers: An open-label randomized crossover trial. Front Nutr 2022; 9:1051418. [PMID: 36532545 PMCID: PMC9751896 DOI: 10.3389/fnut.2022.1051418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 11/17/2022] [Indexed: 01/19/2024] Open
Abstract
OBJECTIVES Given the current controversy concerning the efficacy of omega 3 supplements at reducing inflammation, we evaluated the safety and efficacy of omega 3 on reducing inflammation in people with a 6-year lung cancer risk >1.5% and a C reactive protein (CRP) level >2 mg/L in a phase IIa cross-over study. MATERIALS AND METHODS Forty-nine healthy participants ages 55 to 80, who were still smoking or had smoked in the past with ≥30 pack-years smoking history, living in British Columbia, Canada, were randomized in an open-label trial to receive 2.4 g eicosapentaenoic acid (EPA) + 1.2 g docosahexaenoic acid (DHA)/day for 6 months followed by observation for 6 months or observation for 6 months first and then active treatment for the next 6 months. Blood samples were collected over 1 year for measurement of plasma CRP, plasma and red blood cell (RBC) membrane levels of EPA, DHA and other fatty acids, Prostaglandin E2 (PGE2), Leukotriene B4 (LTB4) and an inflammatory marker panel. RESULTS Twenty one participants who began the trial within the active arm completed the trial while 20 participants who started in the control arm completed the study. Taking omega 3 resulted in a significant decrease in plasma CRP and PGE2 but not LTB4 levels. Importantly, the effect size for the primary outcome, CRP values, at the end of the intervention relative to baseline was medium (Cohen's d = 0.56). DHA, but not EPA levels in RBC membranes inversely correlated with PGE2 levels. Omega 3 also led to a significant reduction in granulocytes and an increase in lymphocytes. These high-dose omega 3 supplements were well tolerated, with only minor gastrointestinal symptoms in a subset of participants. CONCLUSION Omega 3 fatty acids taken at 3.6 g/day significantly reduce systemic inflammation with negligible adverse health effects in people who smoke or have smoked and are at high risk of lung cancer.ClinicalTrials.gov, NCT number: NCT03936621.
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Affiliation(s)
- Ingrid Elisia
- The Terry Fox Laboratory, BC Cancer Research Centre, Vancouver, BC, Canada
| | - Michelle Yeung
- The Terry Fox Laboratory, BC Cancer Research Centre, Vancouver, BC, Canada
| | - Sara Kowalski
- The Terry Fox Laboratory, BC Cancer Research Centre, Vancouver, BC, Canada
| | - Jennifer Wong
- The Terry Fox Laboratory, BC Cancer Research Centre, Vancouver, BC, Canada
| | - Hossein Rafiei
- The Terry Fox Laboratory, BC Cancer Research Centre, Vancouver, BC, Canada
| | - Roger A. Dyer
- Analytical Core for Metabolomics and Nutrition, BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - Sukhinder Atkar-Khattra
- Department of Integrative Oncology, British Columbia Cancer Research Institute, Vancouver, BC, Canada
| | - Stephen Lam
- Department of Integrative Oncology, British Columbia Cancer Research Institute, Vancouver, BC, Canada
| | - Gerald Krystal
- The Terry Fox Laboratory, BC Cancer Research Centre, Vancouver, BC, Canada
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3
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Pereira IC, Mascarenhas IF, Capetini VC, Ferreira PMP, Rogero MM, Torres-Leal FL. Cellular reprogramming, chemoresistance, and dietary interventions in breast cancer. Crit Rev Oncol Hematol 2022; 179:103796. [PMID: 36049616 DOI: 10.1016/j.critrevonc.2022.103796] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 07/16/2022] [Accepted: 08/21/2022] [Indexed: 10/31/2022] Open
Abstract
Breast cancer (BC) diagnosis has been associated with significant risk factors, including family history, late menopause, obesity, poor eating habits, and alcoholism. Despite the advances in the last decades regarding cancer treatment, some obstacles still hinder the effectiveness of therapy. For example, chemotherapy resistance is common in locally advanced or metastatic cancer, reducing treatment options and contributing to mortality. In this review, we provide an overview of BC metabolic changes, including the impact of restrictive diets associated with chemoresistance, the therapeutic potential of the diet on tumor progression, pathways related to metabolic health in oncology, and perspectives on the future in the area of oncological nutrition.
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Affiliation(s)
- Irislene Costa Pereira
- Department of Biophysics and Physiology, Center for Health Sciences, Federal University of Piauí, Teresina, Piauí, Brazil; Metabolic Diseases, Exercise and Nutrition Research Group (DOMEN), Center for Health Sciences, Federal University of Piauí, Teresina, Piauí, Brazil
| | - Isabele Frazão Mascarenhas
- Department of Biophysics and Physiology, Center for Health Sciences, Federal University of Piauí, Teresina, Piauí, Brazil
| | | | - Paulo Michel Pinheiro Ferreira
- Department of Biophysics and Physiology, Center for Health Sciences, Federal University of Piauí, Teresina, Piauí, Brazil
| | - Marcelo Macedo Rogero
- Department of Nutrition, School of Public Health, University of São Paulo, Sao Paulo, Brazil
| | - Francisco Leonardo Torres-Leal
- Department of Biophysics and Physiology, Center for Health Sciences, Federal University of Piauí, Teresina, Piauí, Brazil; Metabolic Diseases, Exercise and Nutrition Research Group (DOMEN), Center for Health Sciences, Federal University of Piauí, Teresina, Piauí, Brazil.
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4
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Chen K, Zhang J, Beeraka NM, Tang C, Babayeva YV, Sinelnikov MY, Zhang X, Zhang J, Liu J, Reshetov IV, Sukocheva OA, Lu P, Fan R. Advances in the Prevention and Treatment of Obesity-Driven Effects in Breast Cancers. Front Oncol 2022; 12:820968. [PMID: 35814391 PMCID: PMC9258420 DOI: 10.3389/fonc.2022.820968] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 05/16/2022] [Indexed: 12/11/2022] Open
Abstract
Obesity and associated chronic inflammation were shown to facilitate breast cancer (BC) growth and metastasis. Leptin, adiponectin, estrogen, and several pro-inflammatory cytokines are involved in the development of obesity-driven BC through the activation of multiple oncogenic and pro-inflammatory pathways. The aim of this study was to assess the reported mechanisms of obesity-induced breast carcinogenesis and effectiveness of conventional and complementary BC therapies. We screened published original articles, reviews, and meta-analyses that addressed the involvement of obesity-related signaling mechanisms in BC development, BC treatment/prevention approaches, and posttreatment complications. PubMed, Medline, eMedicine, National Library of Medicine (NLM), and ReleMed databases were used to retrieve relevant studies using a set of keywords, including "obesity," "oncogenic signaling pathways," "inflammation," "surgery," "radiotherapy," "conventional therapies," and "diet." Multiple studies indicated that effective BC treatment requires the involvement of diet- and exercise-based approaches in obese postmenopausal women. Furthermore, active lifestyle and diet-related interventions improved the patients' overall quality of life and minimized adverse side effects after traditional BC treatment, including postsurgical lymphedema, post-chemo nausea, vomiting, and fatigue. Further investigation of beneficial effects of diet and physical activity may help improve obesity-linked cancer therapies.
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Affiliation(s)
- Kuo Chen
- Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jin Zhang
- Department of Human Anatomy, I. M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
| | - Narasimha M. Beeraka
- Department of Human Anatomy, I. M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
- Center of Excellence in Molecular Biology and Regenerative Medicine (CEMR), Department of Biochemistry, JSS Academy of Higher Education and Research (JSS AHER), JSS Medical College, Mysuru, India
| | - Chengyun Tang
- Department of Human Anatomy, I. M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
| | - Yulia V. Babayeva
- Department of Human Anatomy, I. M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
| | - Mikhail Y. Sinelnikov
- Department of Human Anatomy, I. M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
| | - Xinliang Zhang
- Department of Human Anatomy, I. M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
| | - Jiacheng Zhang
- Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Junqi Liu
- Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Igor V. Reshetov
- Department of Human Anatomy, I. M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
| | - Olga A. Sukocheva
- Discipline of Health Sciences, College of Nursing and Health Sciences, Flinders University, Adelaide, SA, Australia
| | - Pengwei Lu
- Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ruitai Fan
- Cancer Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Ma N, Chen X, Liu C, Sun Y, Johnston LJ, Ma X. Dietary nutrition regulates intestinal stem cell homeostasis. Crit Rev Food Sci Nutr 2022; 63:11263-11274. [PMID: 35694795 DOI: 10.1080/10408398.2022.2087052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Intestinal stem cells (ISCs), which locate at the base of intestinal crypts, are key determinants of governing proliferation and differentiation of the intestinal epithelium. The surrounding cells of ISCs and their related growth factors form ISC niche, supporting ISC function and self-renewal. ISC has an underappreciated but emerging role as a sensor of dietary nutrients, which fate decisions is adjusted in response to nutritional states to regulate gut homeostasis. Here, we review endogenous and exogenous factors, such as caloric restriction, fasting, fat, glucose and trace element. They instruct ISCs via mTORC1, PPAR/CPT1α, PPARγ/β-catenin, Wnt/GSK-3β pathway, respectively, jointly affect intestinal homeostasis. These dietary responses regulate ISC regenerative capacity and may be a potential target for cancer prevention. However, without precise definitions of nutrition intervene, it will be difficult to generate sufficient data to extending our knowledge of the biological response of ISC on nutrients. More accurately modeling organoids or high-throughput automated organoid culture in microcavity arrays have provided unprecedented opportunities for modeling diet-host interactions. These major advances collectively provide new insights into nutritional regulation of ISC proliferation and differentiation and drive us ever closer to breakthroughs for regenerative medicine and disease treatment by nutrition intervention in the clinic.
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Affiliation(s)
- Ning Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Xiyue Chen
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Chunchen Liu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yiwei Sun
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Lee J Johnston
- West Central Research & Outreach Center, University of Minnesota, Morris, Minnesota, USA
| | - Xi Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
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6
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Khalid SI, Maasarani S, Wiegmann J, Wiegmann AL, Becerra AZ, Omotosho P, Torquati A. Association of Bariatric Surgery and Risk of Cancer in Patients With Morbid Obesity. Ann Surg 2022; 275:1-6. [PMID: 34183506 DOI: 10.1097/sla.0000000000005035] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE This study investigates the rates of obesity-related cancers in patients undergoing vertical sleeve gastrectomy (VSG), Roux-en-Y gastric bypass (RYGB), or no surgical intervention. SUMMARY BACKGROUND DATA Obesity has been previously associated with increased rates of cancers; however, weight loss surgeries have not been explored to demonstrate their potential risk reduction impact. METHODS Patients meeting bariatric eligibility criteria between January 2010 and December 2018 were identified. Exact 1:1:1 matching based on baseline patient demographics and comorbidities was used to create 3 groups with identical covariates: patients undergoing VSG, RYGB, and no surgery. RESULTS A total of 28, bariatric-eligible patients equally split into patients undergoing VSG (n = 9636, 33.3%), RYGB (n = 9636, 33.3%), and those with no surgical intervention (n = 9636, 33.3%). Bariatric-eligible patients that did not undergo surgical intervention had significantly higher rates and odds of developing numerous cancer types included in our study when compared to either surgical cohorts, with any cancer type (4.61%), uterine (0.86%), colorectal (0.57%), and lung cancers (0.50%) being most common. Individuals undergoing RYGB were significantly less likely to develop colorectal cancer compared to patients without any surgical intervention [odds ratio (OR) 0.47, 95% confidence interval (CI) 0.30-0.75]. Additionally, those undergoing VSG were significantly less likely to develop lung cancer than the bariatric eligible no surgery cohort (OR 0.42, 95% CI 0.25-0.70). CONCLUSION Postoperative rates of any cancer type, lung, ovarian, and uterine cancer were significantly lower in obese patients undergoing either vertical sleeve gastrectomy (VSG) or RYGB compared to bariatric-eligible patients without any surgical intervention.
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Affiliation(s)
- Syed I Khalid
- Department of Surgery, Rush University Medical Center, Chicago, IL
| | | | - Julia Wiegmann
- Department of Surgery, Rush University Medical Center, Chicago, IL
| | - Aaron L Wiegmann
- Department of Surgery, Rush University Medical Center, Chicago, IL
| | - Adan Z Becerra
- Department of Surgery, Rush University Medical Center, Chicago, IL
| | - Philip Omotosho
- Department of Surgery, Rush University Medical Center, Chicago, IL
| | - Alfonso Torquati
- Department of Surgery, Rush University Medical Center, Chicago, IL
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7
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Gan T, Schaberg KB, He D, Mansour A, Kapoor H, Wang C, Evers BM, Bocklage TJ. Association Between Obesity and Histological Tumor Budding in Patients With Nonmetastatic Colon Cancer. JAMA Netw Open 2021; 4:e213897. [PMID: 33792733 PMCID: PMC8017472 DOI: 10.1001/jamanetworkopen.2021.3897] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
IMPORTANCE Obesity is associated with increased risk of colorectal cancer (CRC) and a more aggressive disease course. Tumor budding (TB) is an important prognostic factor for CRC, but its association with obesity is unknown. OBJECTIVE To evaluate the association of TB with obesity and other prognostic factors in colon cancer. DESIGN, SETTING, AND PARTICIPANTS This cohort study involved a histological review of colon cancer specimens obtained during 7 years (January 2008 to December 2015) at the University of Kentucky Medical Center; data analysis was conducted from February 2020 to January 2021. Specimens came from 200 patients with stage I to III colon cancer; patients with stage 0, stage IV, or incomplete data were excluded. MAIN OUTCOMES AND MEASURES TB was defined as 1 to 4 malignant cells at the invasive edge of the tumor, independently assessed by 2 academic pathologists. The primary outcome was the association of TB with obesity (defined as body mass index [BMI] of 30 or greater). Secondary outcomes include the association of TB with clinical features (ie, age, race, sex, TNM stage, tumor location) and pathological features (ie, poorly differentiated tumor clusters [PDCs], Klintrup-Mäkinen inflammatory score, desmoplasia, infiltrative tumor border, tumor necrosis, and tumor-to-stroma ratio). RESULTS A total of 200 specimens were reviewed. The median (interquartile range) age of patients was 62 (55-72) years, 102 (51.0%) were women, and the mean (SD) BMI was 28.5 (8.4). A total of 57 specimens (28.5%) were from stage I tumors; 74 (37.0%), stage II; and 69 (34.5%), stage III. Of these, 97 (48.5%) had low-grade (<5 buds), 36 (18.0%) had intermediate-grade (5-9 buds), and 67 (33.5%) had high-grade (≥10 buds) TB. Multivariable analysis adjusting for clinical and histological factors demonstrated that higher TB grade was associated with obesity (odds ratio [OR], 4.25; 95% CI, 1.95-9.26), higher PDC grade (grade 2 vs 1: OR, 9.14; 95% CI, 3.49-23.93; grade 3 vs 1: OR, 5.10; 95% CI, 2.30-11.27), increased infiltrative tumor border (OR, 1.03; 95% CI, 1.01-1.04), cecal location (OR, 2.55; 95% CI, 1.09-5.97), and higher stage (eg, stage III vs stage I for high-grade or intermediate-grade vs low-grade TB: OR, 2.91; 95% CI, 1.00-8.49). Additionally, patients with a higher TB grade had worse overall survival (intermediate vs low TB: hazard ratio, 2.20; 95% CI, 1.11-4.35; log-rank P = .02; high vs low TB: hazard ratio, 2.67; 95% CI, 1.45-4.90; log-rank P < .001). CONCLUSIONS AND RELEVANCE In this cohort study, a novel association between high TB grade and obesity was found. The association could reflect a systemic condition (ie, obesity) locally influencing aggressive growth (ie, high TB) in colon cancer.
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Affiliation(s)
- Tong Gan
- Department of Surgery, The University of Kentucky, Lexington
- The Markey Cancer Center, The University of Kentucky, Lexington
| | - Kurt B. Schaberg
- The Markey Cancer Center, The University of Kentucky, Lexington
- Department of Pathology, The University of Kentucky, Lexington
| | - Daheng He
- The Markey Cancer Center, The University of Kentucky, Lexington
| | - Akila Mansour
- Department of Pathology, The University of Kentucky, Lexington
| | - Harit Kapoor
- Department of Radiology, The University of Kentucky, Lexington
| | - Chi Wang
- The Markey Cancer Center, The University of Kentucky, Lexington
- Department of Internal Medicine, The University of Kentucky, Lexington
| | - B. Mark Evers
- Department of Surgery, The University of Kentucky, Lexington
- The Markey Cancer Center, The University of Kentucky, Lexington
| | - Therese J. Bocklage
- The Markey Cancer Center, The University of Kentucky, Lexington
- Department of Pathology, The University of Kentucky, Lexington
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Dąbrowski M. Diabetes, Antidiabetic Medications and Cancer Risk in Type 2 Diabetes: Focus on SGLT-2 Inhibitors. Int J Mol Sci 2021; 22:ijms22041680. [PMID: 33562380 PMCID: PMC7915237 DOI: 10.3390/ijms22041680] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/31/2021] [Accepted: 02/03/2021] [Indexed: 12/14/2022] Open
Abstract
In the last decade, cancer became the leading cause of death in the population under 65 in the European Union. Diabetes is also considered as a factor increasing risk of cancer incidence and mortality. Type 2 diabetes is frequently associated with being overweight and obese, which also plays a role in malignancy. Among biological mechanisms linking diabetes and obesity with cancer hyperglycemia, hyperinsulinemia, insulin resistance, increased levels of growth factors, steroid and peptide hormones, oxidative stress and increased activity of pro-inflammatory cytokines are listed. Antidiabetic medications can modulate cancer risk through directly impacting metabolism of cancer cells as well as indirectly through impact on risk factors of malignancy. Some of them are considered beneficial (metformin and thiazolidinedions—with the exception of bladder cancer); on the other hand, excess of exogenous insulin may be potentially harmful, while other medications seem to have neutral impact on cancer risk. Inhibitors of the sodium-glucose cotransporter-2 (SGLT-2) are increasingly used in the treatment of type 2 diabetes. However, their association with cancer risk is unclear. The aim of this review was to analyze the anticancer potential of this class of drugs, as well as risks of site-specific malignancies associated with their use.
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Affiliation(s)
- Mariusz Dąbrowski
- College of Medical Sciences, University of Rzeszów, Al. Rejtana 16C, 35-959 Rzeszów, Poland
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Goßler C, May M, Rosenhammer B, Breyer J, Stojanoski G, Weikert S, Lenart S, Ponholzer A, Dreissig C, Burger M, Gilfrich C, Bründl J. Obesity leads to a higher rate of positive surgical margins in the context of robot-assisted radical prostatectomy. Results of a prospective multicenter study. Cent European J Urol 2020; 73:457-465. [PMID: 33552571 PMCID: PMC7848833 DOI: 10.5173/ceju.2020.0265.r1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 11/10/2020] [Accepted: 11/15/2020] [Indexed: 12/11/2022] Open
Abstract
Introduction Current results concerning the effect of body mass index (BMI) on positive surgical margins (PSMs) after robot-assisted radical prostatectomy (RARP) in patients with localized prostate cancer are inconsistent. Therefore, the aim of this study was to further analyse the association between BMI and PSMs after RARP. Material and methods Between March 2017 and December 2017 a multicentre, prospective, randomised, single-blind series with a blinded outcome assessment of 232 RARP patients was performed. Multivariate logistical regression models were used to analyse the independent effect of obesity, with body-mass-index (BMI) dichotomised at 30 kg/m2 (model-1) and at 90th percentile (model-2), on PSMs. Results Median BMI was 27.2 kg/m2, PSMs were found in 15.5% (n = 36). In multivariate model-1, obesity did not have a significant effect on PSMs (OR 2.34, p = 0.061). However, if BMI was dichotomized at the 90th percentile (BMI ≥33.7 kg/m²), patients with a higher BMI showed PSMs four-times more frequently (OR 3.99, p = 0.013). In both models, preoperative prostate-specific antigen (PSA) levels and pathological tumour stage had a significant effect on PSMs. There was no significant correlation between BMI and the extent of PSMs, nor a significant difference between the BMI groups and the localisation of PSMs. There was a higher percentage of posteriolateral PSM localisation in obese patients compared to patients with a BMI of less than 30 kg/m2 (58.3% and 25.3% of the localisations were posterolateral in obese and non-obese patients, respectively), however this effect was not statistically significant (p = 0.175). Conclusions In addition to a longer operation time and about twice as many complications, patients with a BMI of ≥33.7 kg/m² had a higher PSM rate after RARP. Differences in localization of PSMs in relation to obesity should be evaluated in future research.
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Affiliation(s)
- Christopher Goßler
- Department of Urology, Caritas St. Josef Medical Centre, University of Regensburg, Regensburg, Germany
| | - Matthias May
- Department of Urology, St. Elisabeth Hospital Straubing, Brothers of Mercy Hospital, Straubing, Germany
| | - Bernd Rosenhammer
- Department of Urology, Caritas St. Josef Medical Centre, University of Regensburg, Regensburg, Germany
| | - Johannes Breyer
- Department of Urology, Caritas St. Josef Medical Centre, University of Regensburg, Regensburg, Germany
| | - Gjoko Stojanoski
- Department of Urology, St. Elisabeth Hospital Straubing, Brothers of Mercy Hospital, Straubing, Germany
| | - Steffen Weikert
- Department of Urology, Vivantes Humboldt Hospital, Berlin, Germany
| | - Sebastian Lenart
- Department of Urology and Andrology, St. John of God Hospital Vienna, Brothers of Mercy Hospital, Vienna, Austria
| | - Anton Ponholzer
- Department of Urology and Andrology, St. John of God Hospital Vienna, Brothers of Mercy Hospital, Vienna, Austria
| | | | - Maximilian Burger
- Department of Urology, Caritas St. Josef Medical Centre, University of Regensburg, Regensburg, Germany
| | - Christian Gilfrich
- Department of Urology, St. Elisabeth Hospital Straubing, Brothers of Mercy Hospital, Straubing, Germany
| | - Johannes Bründl
- Department of Urology, Caritas St. Josef Medical Centre, University of Regensburg, Regensburg, Germany
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El-Sherif A, El-Sherif S, Taylor AH, Ayakannu T. Ovarian Cancer: Lifestyle, Diet and Nutrition. Nutr Cancer 2020; 73:1092-1107. [PMID: 32674720 DOI: 10.1080/01635581.2020.1792948] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Ahmed El-Sherif
- Department of Obstetrics and Gynaecology, Arrow Park Hospital, Upton, UK
| | - Sherif El-Sherif
- Department of Obstetrics and Gynaecology, West Cumberland Hospital, Whitehaven, UK
| | - Anthony Henry Taylor
- Department of Molecular and Cellular Biology, University of Leicester, Leicester, UK
| | - Thangesweran Ayakannu
- Gynaecology Oncology Cancer Centre, Liverpool Women’s NHS Foundation Trust, Liverpool Women’s Hospital, Liverpool, UK
- Faculty of Health and Life Sciences, University of Liverpool, Liverpool, UK
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Witkowski JM, Bryl E, Fulop T. Should we Try to Alleviate Immunosenescence and Inflammaging - Why, How and to What Extent? Curr Pharm Des 2020; 25:4154-4162. [PMID: 31713479 DOI: 10.2174/1381612825666191111153016] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 11/07/2019] [Indexed: 12/29/2022]
Abstract
With advancing age, immune responses of human beings to external pathogens, i.e., bacteria, viruses, fungi and parasites, and to internal pathogens - malignant neoplasm cells - become less effective. Two major features in the process of aging of the human immune system are immunosenescence and inflammaging. The immune systems of our predecessors co-evolved with pathogens, which led to the occurrence of effective immunity. However, the otherwise beneficial activity may pose problems to the organism of the host and so it has builtin brakes (regulatory immune cells) and - with age - it undergoes adaptations and modifications, examples of which are the mentioned inflammaging and immunosenescence. Here we describe the mechanisms that first created our immune systems, then the consequences of their changes associated with aging, and the mechanisms of inflammaging and immunosenescence. Finally, we discuss to what extent both processes are detrimental and to what extent they might be beneficial and propose some therapeutic approaches for their wise control.
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Affiliation(s)
- Jacek M Witkowski
- Department of Pathophysiology, Medical University of Gdansk, Gdansk, Poland
| | - Ewa Bryl
- Department of Pathology and Experimental Rheumatology, Medical University of Gdansk, Gdansk, Poland
| | - Tamas Fulop
- Research Center on Aging, Faculty of Medicine and Health Sciences, Department of Medicine, University of Sherbrooke, Sherbrooke, Quebec, Canada
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12
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Hillers-Ziemer LE, Arendt LM. Weighing the Risk: effects of Obesity on the Mammary Gland and Breast Cancer Risk. J Mammary Gland Biol Neoplasia 2020; 25:115-131. [PMID: 32519090 PMCID: PMC7933979 DOI: 10.1007/s10911-020-09452-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/02/2020] [Accepted: 06/03/2020] [Indexed: 12/17/2022] Open
Abstract
Obesity is a preventable risk factor for breast cancer following menopause. Regardless of menopausal status, obese women who develop breast cancer have a worsened prognosis. Breast tissue is comprised of mammary epithelial cells organized into ducts and lobules and surrounded by adipose-rich connective tissue. Studies utilizing multiple in vivo models of obesity as well as human breast tissue have contributed to our understanding of how obesity alters mammary tissue. Localized changes in mammary epithelial cell populations, elevated secretion of adipokines and angiogenic mediators, inflammation within mammary adipose tissue, and remodeling of the extracellular matrix may result in an environment conducive to breast cancer growth. Despite these significant alterations caused by obesity within breast tissue, studies have suggested that some, but not all, obesity-induced changes may be mitigated with weight loss. Here, we review our current understanding regarding the impact of obesity on the breast microenvironment, how obesity-induced changes may contribute to breast tumor progression, and the impact of weight loss on the breast microenvironment.
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Affiliation(s)
- Lauren E Hillers-Ziemer
- Program in Cellular and Molecular Biology, University of Wisconsin-Madison, 1525 Linden Drive, Madison, WI, 53706, USA
| | - Lisa M Arendt
- Program in Cellular and Molecular Biology, University of Wisconsin-Madison, 1525 Linden Drive, Madison, WI, 53706, USA.
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, 2015 Linden Drive, Madison, WI, 53706, USA.
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13
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Befort CA, Kimler BF, Bantis LE, Phillips TA, Fabian CJ. Effects of Weight Loss and Weight Regain on Circulating Biomarkers in Overweight/Obese Breast Cancer Survivors Enrolled in a Weight Loss Trial in the Rural Midwest. Cancer Epidemiol Biomarkers Prev 2020; 29:1321-1328. [PMID: 32277008 DOI: 10.1158/1055-9965.epi-19-1572] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 03/23/2020] [Accepted: 04/07/2020] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Obesity is associated with worse breast cancer prognosis, however little is known about the level of weight loss required to improve pathway biomarkers. The effects of weight regain on biomarkers are also largely unknown. METHODS Overweight/obese breast cancer survivors enrolled in an 18-month behavioral weight loss trial provided weight and serum biomarkers [leptin, adiponectin, insulin, plasminogen activator inhibitor-1 (PAI-1), IL-6, TNFα, and hepatocyte growth factor HGF] at baseline, 6, and 18 months (n = 138). Change in biomarkers over time and by weight loss thresholds were examined. RESULTS Mean weight loss at 6 months was 13.3 ± 5.0 kg; from 6 to 18 months, mean regain was 4.0 ± 5.2 kg. Favorable biomarker modulations were observed at 6 months for leptin, adiponectin, insulin, PAI-1, IL-6, and HGF (P < 0.006 to P < 0.0001). These changes remained significant overall at 18 months despite attenuation in some. Women who lost <10% of baseline weight showed significantly smaller modulation effects for leptin (P < 0.0001), adiponectin:leptin (A/L) ratio (P < 0.0001), PAI-1 (P < 0.001), and insulin (P = 0.003) compared with women who lost >10%. Women who lost >10% observed a significant increase in adiponectin (P < 0.0001), and these women continued to show improved adiponectin from 6 to 18 months despite weight regain. Physical activity contributed additional effects on biomarker change for leptin, A/L ratio, and PAI-1. CONCLUSIONS These findings are consistent with a clinical target of 10% weight. IMPACT Sustained increases in adiponectin likely confer benefits for breast cancer prognosis even with weight regain.
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Affiliation(s)
- Christie A Befort
- University of Kansas Medical Center, University of Kansas Cancer Center, Kansas City, Kansas.
| | - Bruce F Kimler
- University of Kansas Medical Center, University of Kansas Cancer Center, Kansas City, Kansas
| | - Leonidas E Bantis
- University of Kansas Medical Center, University of Kansas Cancer Center, Kansas City, Kansas
| | - Teresa A Phillips
- University of Kansas Medical Center, University of Kansas Cancer Center, Kansas City, Kansas
| | - Carol J Fabian
- University of Kansas Medical Center, University of Kansas Cancer Center, Kansas City, Kansas
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14
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Kim JS, Ko SH, Baeg MK, Han KD. A simple screening score to predict diabetes in cancer patients: A Korean nationwide population-based cohort study. Medicine (Baltimore) 2019; 98:e18354. [PMID: 31860991 PMCID: PMC6940131 DOI: 10.1097/md.0000000000018354] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Many cancer patients develop diabetes, which may result in reduction of chemotherapy effectiveness and increased infection risk and cardiovascular mortality. Diabetes may also increase the risks of chemotherapy-related toxicity and post-operative mortality, or represent an obstacle to optimal cancer treatment. However, the clinical predictors of diabetes in cancer patients remain largely unknown. Therefore, the aim of our study was to evaluate the risk factors for developing diabetes and construct a nomogram to predict diabetes in cancer patients.We investigated patients from a national sample cohort obtained from the Korea National Health Insurance Service (KNHIS), which included 2% of the Korean population. Patients who had undergone routine medical evaluation by the KNHIS between 2004 and 2008 and been hospitalized due to cancer (ICD-10 codes C00-97) during the past 3 years were included. After excluding patients with type 2 diabetes and missing data, 10,899 patients were enrolled and followed-up until 2013. A total of 7630 (70%) patients were assigned as the training cohort and used to construct the nomogram which was based on a multivariable logistic regression model. The remaining patients (n = 3269) were used as the validation cohort.The incidence rate of diabetes was 12.1 per 1000 person-years over a mean follow-up of 6.6 ± 1.8 years. Significant risk factors for developing diabetes were age, sex, obesity, fasting plasma glucose, hypertension, and hypercholesterolmia. A nomogram was constructed using these variables and internally validated. The area under the curve was 0.70 (95% confidence interval, .666-.730, P < .0001) and the calibration plot showed agreement between the actual and nomogram-predicted diabetes probabilities.The nomogram developed in this study is easy to use and convenient for identifying cancer patients at high-risk for type 2 diabetes, enabling early type 2 diabetes screening and management.
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Affiliation(s)
- Ji-Su Kim
- Department of Nursing, Chung-Ang University, Seoul,
| | - Sun-Hye Ko
- Department of Internal Medicine, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan,
| | - Myong Ki Baeg
- Myong Ki Baeg, Department of Internal Medicine, International St. Mary's Hospital, College of Medicine, Catholic Kwandong University, Incheon,
| | - Kyung-Do Han
- Department of Biostatistics, The Catholic University of Korea, Seoul, Republic of Korea
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15
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Abstract
PURPOSE OF REVIEW Rising costs and increasing morbidity makes the identification and treatment of high-risk asthma phenotypes important. In this review, we outline the complex relationship between obesity and asthma. RECENT FINDINGS Studies have confirmed a bi-directional relationship between obesity and asthma. Pathophysiological factors implicated include genetic risk, the effect of diet and microbiome, and obesity-related cytokines. There have been robust, albeit derived, efforts to phenotype this group with distinct clinical presentations based on age of onset of asthma. Unfortunately, the poor performance of biomarkers and traditional lung function testing has impeded diagnosis, phenotyping, and management of the obese asthma patient. There is also a lack of targeted interventions with weight loss showing some benefits. Obesity increases the prevalence of asthma and is associated with worse outcomes. There are unique research and clinical challenges while managing this group of patients.
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16
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Eibl G, Cruz-Monserrate Z, Korc M, Petrov MS, Goodarzi MO, Fisher WE, Habtezion A, Lugea A, Pandol SJ, Hart PA, Andersen DK. Diabetes Mellitus and Obesity as Risk Factors for Pancreatic Cancer. J Acad Nutr Diet 2018; 118:555-567. [PMID: 28919082 PMCID: PMC5845842 DOI: 10.1016/j.jand.2017.07.005] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 07/10/2017] [Indexed: 02/06/2023]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is among the deadliest types of cancer. The worldwide estimates of its incidence and mortality in the general population are eight cases per 100,000 person-years and seven deaths per 100,000 person-years, and they are significantly higher in the United States than in the rest of the world. The incidence of this disease in the United States is more than 50,000 new cases in 2017. Indeed, total deaths due to PDAC are projected to increase dramatically to become the second leading cause of cancer-related deaths before 2030. Considering the failure to date to efficiently treat existing PDAC, increased effort should be undertaken to prevent this disease. A better understanding of the risk factors leading to PDAC development is of utmost importance to identify and formulate preventive strategies. Large epidemiologic and cohort studies have identified risk factors for the development of PDAC, including obesity and type 2 diabetes mellitus. This review highlights the current knowledge of obesity and type 2 diabetes as risk factors for PDAC development and progression, their interplay and underlying mechanisms, and the relation to diet. Research gaps and opportunities to address this deadly disease are also outlined.
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Grosso G, Bella F, Godos J, Sciacca S, Del Rio D, Ray S, Galvano F, Giovannucci EL. Possible role of diet in cancer: systematic review and multiple meta-analyses of dietary patterns, lifestyle factors, and cancer risk. Nutr Rev 2018; 75:405-419. [PMID: 28969358 DOI: 10.1093/nutrit/nux012] [Citation(s) in RCA: 271] [Impact Index Per Article: 45.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Context Evidence of an association between dietary patterns derived a posteriori and risk of cancer has not been reviewed comprehensively. Objective The aim of this review was to investigate the relation between a posteriori-derived dietary patterns, grouped as healthy or unhealthy, and cancer risk. The relation between cancer risk and background characteristics associated with adherence to dietary patterns was also examined. Data Sources PubMed and Embase electronic databases were searched. Study Selection A total of 93 studies including over 85 000 cases, 100 000 controls, and 2 000 000 exposed individuals were selected. Data Extraction Data were extracted from each identified study using a standardized form by two independent authors. Results The most convincing evidence (significant results from prospective cohort studies) supported an association between healthy dietary patterns and decreased risk of colon and breast cancer, especially in postmenopausal, hormone receptor-negative women, and an association between unhealthy dietary patterns and increased risk of colon cancer. Limited evidence of a relation between an unhealthy dietary pattern and risk of upper aerodigestive tract, pancreatic, ovarian, endometrial, and prostatic cancers relied only on case-control studies. Unhealthy dietary patterns were associated with higher body mass index and energy intake, while healthy patterns were associated with higher education, physical activity, and less smoking. Potential differences across geographical regions require further evaluation. Conclusions The results suggest a potential role of diet in certain cancers, but the evidence is not conclusive and may be driven or mediated by lifestyle factors.
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Affiliation(s)
- Giuseppe Grosso
- Integrated Cancer Registry of Catania-Messina-Siracusa-Enna, Azienda Ospedaliero-Universitaria Policlinico-Vittorio Emanuele, Catania, Italy.,NNEdPro Global Centre for Nutrition and Health, St John's Innovation Centre, Cambridge, United Kingdom
| | - Francesca Bella
- Integrated Cancer Registry of Catania-Messina-Siracusa-Enna, Azienda Ospedaliero-Universitaria Policlinico-Vittorio Emanuele, Catania, Italy
| | - Justyna Godos
- Integrated Cancer Registry of Catania-Messina-Siracusa-Enna, Azienda Ospedaliero-Universitaria Policlinico-Vittorio Emanuele, Catania, Italy
| | - Salvatore Sciacca
- Integrated Cancer Registry of Catania-Messina-Siracusa-Enna, Azienda Ospedaliero-Universitaria Policlinico-Vittorio Emanuele, Catania, Italy
| | - Daniele Del Rio
- Department of Food Science, University of Parma, Parma, Italy.,NNEdPro Global Centre for Nutrition and Health, St John's Innovation Centre, Cambridge, United Kingdom
| | - Sumantra Ray
- Integrated Cancer Registry of Catania-Messina-Siracusa-Enna, Azienda Ospedaliero-Universitaria Policlinico-Vittorio Emanuele, Catania, Italy.,NNEdPro Global Centre for Nutrition and Health, St John's Innovation Centre, Cambridge, United Kingdom
| | - Fabio Galvano
- Department of Epidemiology and the Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA.,Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Edward L Giovannucci
- Integrated Cancer Registry of Catania-Messina-Siracusa-Enna, Azienda Ospedaliero-Universitaria Policlinico-Vittorio Emanuele, Catania, Italy
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18
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Dieli-Conwright CM, Courneya KS, Demark-Wahnefried W, Sami N, Lee K, Buchanan TA, Spicer DV, Tripathy D, Bernstein L, Mortimer JE. Effects of Aerobic and Resistance Exercise on Metabolic Syndrome, Sarcopenic Obesity, and Circulating Biomarkers in Overweight or Obese Survivors of Breast Cancer: A Randomized Controlled Trial. J Clin Oncol 2018; 36:875-883. [PMID: 29356607 DOI: 10.1200/jco.2017.75.7526] [Citation(s) in RCA: 195] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Purpose Metabolic syndrome is associated with an increased risk of cardiovascular disease, type 2 diabetes, and breast cancer recurrence in survivors of breast cancer. This randomized controlled trial assessed the effects of a 16-week combined aerobic and resistance exercise intervention on metabolic syndrome, sarcopenic obesity, and serum biomarkers among ethnically diverse, sedentary, overweight, or obese survivors of breast cancer. Methods Eligible survivors of breast cancer (N = 100) were randomly assigned to exercise (n = 50) or usual care (n = 50). The exercise group participated in supervised moderate-to-vigorous-65% to 85% of heart rate maximum-aerobic and resistance exercise three times per week for 16 weeks. Metabolic syndrome z-score (primary outcome), sarcopenic obesity, and serum biomarkers were measured at baseline, postintervention (4 months), and 3-month follow-up (exercise only). Results Participants were age 53 ± 10.4 years, 46% were obese, and 74% were ethnic minorities. Adherence to the intervention was 95%, and postintervention assessments were available in 91% of participants. Postintervention metabolic syndrome z-score was significantly improved in exercise versus usual care (between-group difference, -4.4; 95% CI, -5.9 to -2.7; P < .001). Sarcopenic obesity (appendicular skeletal mass index, P = .001; body mass index, P = .001) and circulating biomarkers, including insulin ( P = .002), IGF-1 ( P = .001), leptin ( P = .001), and adiponectin ( P = .001), were significantly improved postintervention compared with usual care. At 3-month follow-up, all metabolic syndrome variables remained significantly improved compared with baseline in the exercise group ( P < .01). Conclusion Combined resistance and aerobic exercise effectively attenuated metabolic syndrome, sarcopenic obesity, and relevant biomarkers in an ethnically diverse sample of sedentary, overweight, or obese survivors of breast cancer. Our findings suggest a targeted exercise prescription for improving metabolic syndrome in survivors of breast cancer and support the incorporation of supervised clinical exercise programs into breast cancer treatment and survivorship care plans.
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Affiliation(s)
- Christina M Dieli-Conwright
- Christina M. Dieli-Conwright, Nathalie Sami, Kyuwan Lee, Thomas A. Buchanan, and Darcy V. Spicer, University of Southern California, Los Angeles; Leslie Bernstein and Joanne E. Mortimer, City of Hope, Duarte, CA; Kerry S. Courneya, University of Alberta, Edmonton, Alberta, Canada; Wendy Demark-Wahnefried, University of Alabama at Birmingham, Birmingham, AL; and Debu Tripathy, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Kerry S Courneya
- Christina M. Dieli-Conwright, Nathalie Sami, Kyuwan Lee, Thomas A. Buchanan, and Darcy V. Spicer, University of Southern California, Los Angeles; Leslie Bernstein and Joanne E. Mortimer, City of Hope, Duarte, CA; Kerry S. Courneya, University of Alberta, Edmonton, Alberta, Canada; Wendy Demark-Wahnefried, University of Alabama at Birmingham, Birmingham, AL; and Debu Tripathy, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Wendy Demark-Wahnefried
- Christina M. Dieli-Conwright, Nathalie Sami, Kyuwan Lee, Thomas A. Buchanan, and Darcy V. Spicer, University of Southern California, Los Angeles; Leslie Bernstein and Joanne E. Mortimer, City of Hope, Duarte, CA; Kerry S. Courneya, University of Alberta, Edmonton, Alberta, Canada; Wendy Demark-Wahnefried, University of Alabama at Birmingham, Birmingham, AL; and Debu Tripathy, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Nathalie Sami
- Christina M. Dieli-Conwright, Nathalie Sami, Kyuwan Lee, Thomas A. Buchanan, and Darcy V. Spicer, University of Southern California, Los Angeles; Leslie Bernstein and Joanne E. Mortimer, City of Hope, Duarte, CA; Kerry S. Courneya, University of Alberta, Edmonton, Alberta, Canada; Wendy Demark-Wahnefried, University of Alabama at Birmingham, Birmingham, AL; and Debu Tripathy, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Kyuwan Lee
- Christina M. Dieli-Conwright, Nathalie Sami, Kyuwan Lee, Thomas A. Buchanan, and Darcy V. Spicer, University of Southern California, Los Angeles; Leslie Bernstein and Joanne E. Mortimer, City of Hope, Duarte, CA; Kerry S. Courneya, University of Alberta, Edmonton, Alberta, Canada; Wendy Demark-Wahnefried, University of Alabama at Birmingham, Birmingham, AL; and Debu Tripathy, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Thomas A Buchanan
- Christina M. Dieli-Conwright, Nathalie Sami, Kyuwan Lee, Thomas A. Buchanan, and Darcy V. Spicer, University of Southern California, Los Angeles; Leslie Bernstein and Joanne E. Mortimer, City of Hope, Duarte, CA; Kerry S. Courneya, University of Alberta, Edmonton, Alberta, Canada; Wendy Demark-Wahnefried, University of Alabama at Birmingham, Birmingham, AL; and Debu Tripathy, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Darcy V Spicer
- Christina M. Dieli-Conwright, Nathalie Sami, Kyuwan Lee, Thomas A. Buchanan, and Darcy V. Spicer, University of Southern California, Los Angeles; Leslie Bernstein and Joanne E. Mortimer, City of Hope, Duarte, CA; Kerry S. Courneya, University of Alberta, Edmonton, Alberta, Canada; Wendy Demark-Wahnefried, University of Alabama at Birmingham, Birmingham, AL; and Debu Tripathy, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Debu Tripathy
- Christina M. Dieli-Conwright, Nathalie Sami, Kyuwan Lee, Thomas A. Buchanan, and Darcy V. Spicer, University of Southern California, Los Angeles; Leslie Bernstein and Joanne E. Mortimer, City of Hope, Duarte, CA; Kerry S. Courneya, University of Alberta, Edmonton, Alberta, Canada; Wendy Demark-Wahnefried, University of Alabama at Birmingham, Birmingham, AL; and Debu Tripathy, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Leslie Bernstein
- Christina M. Dieli-Conwright, Nathalie Sami, Kyuwan Lee, Thomas A. Buchanan, and Darcy V. Spicer, University of Southern California, Los Angeles; Leslie Bernstein and Joanne E. Mortimer, City of Hope, Duarte, CA; Kerry S. Courneya, University of Alberta, Edmonton, Alberta, Canada; Wendy Demark-Wahnefried, University of Alabama at Birmingham, Birmingham, AL; and Debu Tripathy, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Joanne E Mortimer
- Christina M. Dieli-Conwright, Nathalie Sami, Kyuwan Lee, Thomas A. Buchanan, and Darcy V. Spicer, University of Southern California, Los Angeles; Leslie Bernstein and Joanne E. Mortimer, City of Hope, Duarte, CA; Kerry S. Courneya, University of Alberta, Edmonton, Alberta, Canada; Wendy Demark-Wahnefried, University of Alabama at Birmingham, Birmingham, AL; and Debu Tripathy, The University of Texas MD Anderson Cancer Center, Houston, TX
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Abstract
Diet, physical activity, and body weight have been shown to play an important role in cancer survivorship. The impact of each of these lifestyle factors differs slightly among cancer types, and adherence to recommended diet and physical activity guidelines has been associated with positive outcomes, including decrease in the risk of cancer recurrence and improvement of quality of life. Although there are compelling data that appropriate diet, physical activity, and body weight have beneficial effects in cancer survivorship, additional trials are needed to understand the relationship.
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Affiliation(s)
- Karishma Mehra
- Department of Medical Oncology, Yale School of Medicine, 333 Cedar Street, New Haven, CT 06520, USA
| | - Alyssa Berkowitz
- Department of Medical Oncology, Yale School of Medicine, 333 Cedar Street, New Haven, CT 06520, USA
| | - Tara Sanft
- Department of Medical Oncology, Yale School of Medicine, 333 Cedar Street, New Haven, CT 06520, USA.
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Bai ZB, Qin YL, Deng G, Zhao GF, Zhong BY, Teng GJ. Bariatric Embolization of the Left Gastric Arteries for the Treatment of Obesity: 9-Month Data in 5 Patients. Obes Surg 2017; 28:907-915. [PMID: 29063494 DOI: 10.1007/s11695-017-2979-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
PURPOSE The purpose of this study is to investigate the safety and 9-month effectiveness of transcatheter left gastric artery embolization (LGAE) for treating patients with obesity. MATERIALS AND METHODS The protocol of this study was approved by the Institutional Ethics Review Board. Five obese patients (3 men and 2 women) with mean weight of 102.0 ± 16.19 kg (range, 82.1-125.5 kg) and mean body mass index (BMI) of 38.1 kg/m2 ± 3.8 (range, 32.9-42.4 kg/m2) underwent LGAE with polyvinyl alcohol (PVA) particles in diameter of 500-710 μm. The primary endpoint was the safety by grading the adverse events (AEs) according to the Common Terminology Criteria for Adverse Events (CTCAE v4.0) within 30 days after LGAE. The secondary endpoints were measured with serum ghrelin and leptin levels, body weight, waist circumference, waist-to-height ratio, and abdominal fat quantity on MRI at the day immediately before LGAE and every 3 months after LGAE. RESULTS LGAE was successfully performed in all patients. A superficial linear ulceration below the cardia was seen in 1 patient 3 days after LGAE and healed within 30 days. No other serious AEs (grade III or above) occurred. Average body weight loss at 3, 6, and 9 months was 8.28 ± 7.3 kg (p = 0.074), 10.42 ± 8.21 kg (p = 0.047), and 12.9 ± 14.66 kg (p = 0.121), respectively. The level of serum ghrelin decreased by 40.83% (p = 0.009), 31.94% (p = 0.107), and 24.82% (p = 0.151) at 3, 6, and 9 months after LGAE, respectively. There was minimal reduction of leptin levels at 3 and 6 months following LGAE (decreased by 0.26%, p = 0.929, and 4.33%, p = 0.427, respectively), but it declined obviously 9 months after LGAE (decreased by 11.22%, p = 0.295). Both waist circumference and waist-to-height ratio decreased after LGAE. MRI showed the area of subcutaneous adipose tissue decreased from the baseline of 400.90 ± 79.25 to 320.36 ± 68.06 cm2 (decreased by 20.09%, p = 0.006) at 3 months, to 328.31 ± 52.67 cm2 (decreased by 18.11%, p = 0.020) at 6 months, and to 286.40 ± 55.72 cm2 (decreased by 28.52%, p = 0.101) at 9 months after LGAE, respectively. But the decrease of abdominal fat loss at 9 months after LGAE was largely due to the reduction in visceral adipose tissue. CONCLUSIONS Our study with 9-month data in 5 patients indicates that bariatric embolization of the LGA is a safe and may be a promising strategy to suppress the production of ghrelin and results in weight loss and abdominal fat reduction. TRIAL REGISTRATION ClinicalTrials.gov (NCT02786108).
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Affiliation(s)
- Zhi-Bin Bai
- Center of Interventional Radiology and Vascular Surgery, Department of Radiology, Zhong-Da Hospital, Medical School, Southeast University, 87 Dingjiaqiao Road, Nanjing, 210009, China
| | - Yong-Lin Qin
- Center of Interventional Radiology and Vascular Surgery, Department of Radiology, Zhong-Da Hospital, Medical School, Southeast University, 87 Dingjiaqiao Road, Nanjing, 210009, China
| | - Gang Deng
- Center of Interventional Radiology and Vascular Surgery, Department of Radiology, Zhong-Da Hospital, Medical School, Southeast University, 87 Dingjiaqiao Road, Nanjing, 210009, China
| | - Guo-Feng Zhao
- Center of Interventional Radiology and Vascular Surgery, Department of Radiology, Zhong-Da Hospital, Medical School, Southeast University, 87 Dingjiaqiao Road, Nanjing, 210009, China
| | - Bin-Yan Zhong
- Center of Interventional Radiology and Vascular Surgery, Department of Radiology, Zhong-Da Hospital, Medical School, Southeast University, 87 Dingjiaqiao Road, Nanjing, 210009, China
| | - Gao-Jun Teng
- Center of Interventional Radiology and Vascular Surgery, Department of Radiology, Zhong-Da Hospital, Medical School, Southeast University, 87 Dingjiaqiao Road, Nanjing, 210009, China.
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21
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Goldberg R, Sonnenblick A, Hermano E, Hamburger T, Meirovitz A, Peretz T, Elkin M. Heparanase augments insulin receptor signaling in breast carcinoma. Oncotarget 2017; 8:19403-19412. [PMID: 28038446 PMCID: PMC5386693 DOI: 10.18632/oncotarget.14292] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 12/01/2016] [Indexed: 01/09/2023] Open
Abstract
Recently, growing interest in the potential link between metabolic disorders (i.e., diabetes, obesity, metabolic syndrome) and breast cancer has mounted, including studies which indicate that diabetic/hyperinsulinemic women have a significantly higher risk of bearing breast tumors that are more aggressive and associated with higher death rates. Insulin signaling is regarded as a major contributor to this phenomenon; much less is known about the role of heparan sulfate-degrading enzyme heparanase in the link between metabolic disorders and cancer.In the present study we analyzed clinical samples of breast carcinoma derived from diabetic/non-diabetic patients, and investigated effects of heparanase on insulin signaling in breast carcinoma cell lines, as well as insulin-driven growth of breast tumor cells.We demonstrate that heparanase activity leads to enhanced insulin signaling and activation of downstream tumor-promoting pathways in breast carcinoma cells. In agreement, heparanase enhances insulin-induced proliferation of breast tumor cells in vitro. Moreover, analyzing clinical data from diabetic breast carcinoma patients, we found that concurrent presence of both diabetic state and heparanase in tumor tissue (as opposed to either condition alone) was associated with more aggressive phenotype of breast tumors in the patient cohort analyzed in our study (two-sided Fisher's exact test; p=0.04). Our findings highlight the emerging role of heparanase in powering effect of hyperinsulinemic state on breast tumorigenesis and imply that heparanase targeting, which is now under intensive development/clinical testing, could be particularly efficient in a growing fraction of breast carcinoma patients suffering from metabolic disorders.
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Affiliation(s)
- Rachel Goldberg
- Sharett Institute, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel
| | - Amir Sonnenblick
- Sharett Institute, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel
| | - Esther Hermano
- Sharett Institute, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel
| | - Tamar Hamburger
- Sharett Institute, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel
| | - Amichay Meirovitz
- Sharett Institute, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel
| | - Tamar Peretz
- Sharett Institute, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel
| | - Michael Elkin
- Sharett Institute, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel
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22
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Dogan S, Ray A, Cleary MP. The influence of different calorie restriction protocols on serum pro-inflammatory cytokines, adipokines and IGF-I levels in female C57BL6 mice: short term and long term diet effects. Meta Gene 2017; 12:22-32. [PMID: 28373962 PMCID: PMC5375115 DOI: 10.1016/j.mgene.2016.12.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Calorie restriction (CR) is an effective intervention to prevent chronic diseases including cancer. Although many factors, i.e., sex hormones, IGF-I and mTOR have been studied in response to CR, the molecular mechanisms of CR remain to be identified. Our objective was to determine the short and long-term effects of different CR protocols on pro-inflammatory cytokines. Our hypothesis was that Intermittent CR (ICR) would result in greater inhibition of pro-inflammatory serum cytokines compared to Chronic CR (CCR) as we previously found ICR to be more protective in the prevention of mammary tumor development. From ten weeks of age female C57BL6 mice were maintained on either ad libitum (AL) fed, ICR or CCR protocols (overall CR of ~75% of AL) for up to 74 weeks of age. Blood samples were collected for measurements of serum interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α), adiponectin, leptin, IGF-I and insulin at specified ages. For ICR mice samples were collected following 3 weeks of restriction (ICR-R) and after one week of refeeding (ICR-RF). In general, both modes of CR significantly reduced serum IL-6, TNF-α, IGF-I and leptin levels compared to AL with IL-6 levels 24 and 3.5 fold and TNF-α levels t 11 and 1.5 fold lower in ICR and CCR groups, respectively at study termination. There was a trend for adiponectin and insulin to be highest in ICR-RF mice. Body weights were positively correlated with IL-6, TNF-α, insulin and leptin but negatively correlated with adiponectin-to-leptin ratio. Moreover, there was a positive correlation between IL-6 and TNF-α. Beneficial effects of ICR may function through pro-inflammatory cytokine pathways.
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Affiliation(s)
- Soner Dogan
- University of Minnesota, Hormel Institute Medical Research Center, Austin, MN, USA
- Yeditepe University, School of Medicine, Department of Medical Biology, Istanbul, Turkey
| | - Amitabha Ray
- University of Minnesota, Hormel Institute Medical Research Center, Austin, MN, USA
| | - Margot P. Cleary
- University of Minnesota, Hormel Institute Medical Research Center, Austin, MN, USA
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23
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Pudkasam S, Tangalakis K, Chinlumprasert N, Apostolopoulos V, Stojanovska L. Breast cancer and exercise: The role of adiposity and immune markers. Maturitas 2017; 105:16-22. [PMID: 28515012 DOI: 10.1016/j.maturitas.2017.04.022] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Accepted: 04/25/2017] [Indexed: 02/06/2023]
Abstract
Currently, breast cancer accounts for a quarter of all cancers and 15% of cancer-specific deaths amongst females. The global occurrence of breast cancer has increased in the last decade whilst the mortality rate has decreased. Exercise can be beneficial to breast cancer patients through changes in adiposity and immune responses. Even though there is some evidence supporting the improvement of fat metabolism and immune function after an exercise program in breast cancer, randomized controlled studies are limited and require further comprehensive analysis in this population group. Herein, we identify the known effects of exercise programs on adiposity and immunological markers which can improve breast cancer outcomes.
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Affiliation(s)
- Supa Pudkasam
- Centre for Chronic Disease, College of Health and Biomedicine, Victoria University, PO Box 14426, Melbourne VIC 8001 Australia; Faculty of Nursing Science, Assumption University, Bangkok, Thailand
| | - Kathy Tangalakis
- Centre for Chronic Disease, College of Health and Biomedicine, Victoria University, PO Box 14426, Melbourne VIC 8001 Australia
| | | | - Vasso Apostolopoulos
- Centre for Chronic Disease, College of Health and Biomedicine, Victoria University, PO Box 14426, Melbourne VIC 8001 Australia.
| | - Lily Stojanovska
- Centre for Chronic Disease, College of Health and Biomedicine, Victoria University, PO Box 14426, Melbourne VIC 8001 Australia.
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24
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Genome-Wide Methylation Analysis Identifies Specific Epigenetic Marks In Severely Obese Children. Sci Rep 2017; 7:46311. [PMID: 28387357 PMCID: PMC5384222 DOI: 10.1038/srep46311] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 03/14/2017] [Indexed: 12/21/2022] Open
Abstract
Obesity is a heterogeneous disease with many different subtypes. Epigenetics could contribute to these differences. The aim of this study was to investigate genome-wide DNA methylation searching for methylation marks associated with obesity in children and adolescents. We studied DNA methylation profiles in whole blood cells from 40 obese children and controls using Illumina Infinium HumanMethylation450 BeadChips. After correction for cell heterogeneity and multiple tests, we found that compared to lean controls, 31 CpGs are differentially methylated in obese patients. A greatest proportion of these CpGs is hypermethylated in obesity and located in CpG shores regions. We next focused on severely obese children and identified 151 differentially methylated CpGs among which 10 with a difference in methylation greater than 10%. The top pathways enriched among the identified CpGs included the "IRS1 target genes" and several pathways in cancer diseases. This study represents the first effort to search for differences in methylation in obesity and severe obesity, which may help understanding these different forms of obesity and their complications.
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25
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Abstract
PURPOSE OF REVIEW Dietary intake is a critical regulator of organismal physiology and health. Tissue homeostasis and regeneration are dependent on adult tissue stem cells that self-renew and differentiate into the specialized cell types. As stem cells respond to cues from their environment, dietary signals and nutrients influence tissue biology by altering the function and activity of adult stem cells. In this review, we highlight recent studies that illustrate how diverse diets such as caloric restriction, fasting, high fat diets, and ketogenic diets impact stem cell function and their microenvironments. RECENT FINDINGS Caloric restriction generally exerts positive effects on adult stem cells, notably increasing stem cell functionality in the intestine and skeletal muscle as well as increasing hematopoietic stem cell quiescence. Similarly, fasting confers protection of intestinal, hematopoietic, and neuronal stem cells against injury. High fat diets induce intestinal stem cell niche independence and stem-like properties in intestinal progenitors, while high fat diets impair hematopoiesis and neurogenesis. SUMMARY Caloric restriction and fasting are generally beneficial to adult stem cell function, while high fat diets impair stem cell function or create opportunities for tumorigenesis. However, the effects of each diet on stem cell biology are complex and vary greatly between tissues. Given the recent interest in developing dietary interventions or mimetics as therapeutics, further studies, including on ketogenic diets, will be essential to understand how adult stem cells respond to diet-induced signals and physiology.
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Affiliation(s)
- Miyeko D. Mana
- The David H. Koch Institute for Integrative Cancer Research at MIT, Cambridge, MA 02139, Department of Biology, MIT, Cambridge, MA 02139 USA
| | - Elaine Yih-Shuen Kuo
- The David H. Koch Institute for Integrative Cancer Research at MIT, Cambridge, MA 02139, Department of Biology, MIT, Cambridge, MA 02139 USA
| | - Ömer H. Yilmaz
- The David H. Koch Institute for Integrative Cancer Research at MIT, Cambridge, MA 02139, Department of Biology, MIT, Cambridge, MA 02139 USA
- Broad Institute of Harvard and MIT, Cambridge, MA 02142 USA
- Departments of Pathology, Gastroenterology, and Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114 USA
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26
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Pero R, Coretti L, Lembo F. Botulinum Toxin A for Controlling Obesity. Toxins (Basel) 2016; 8:E281. [PMID: 27681739 PMCID: PMC5086641 DOI: 10.3390/toxins8100281] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 09/20/2016] [Accepted: 09/20/2016] [Indexed: 01/09/2023] Open
Abstract
Rapid growth of the overweight population and the number of obese individuals in recent decades suggests that current strategies based on diet, exercise, and pharmacological knowledge are not sufficient to address this epidemic. Obesity is the result of a high caloric intake and energy storage, not counterbalanced by an equally important energy expense. Botulinum toxin type A (BoNT-A) use is rapidly expanding to include treatment of a variety of ophthalmological, gastrointestinal, urological, orthopedic, dermatological, secretory, painful, and cosmetic disorders. Many studies evaluating the effect of BoNT-A in gastric antrum e/o fundus for the treatment of obesity have been published. This treatment modality was based on the observation that gastric injection of BoNT-A in laparatomized rats induced a significant reduction of food intake and body weight. These studies have been published yielding debated results. Differences in the selection of patients, the doses of BoNT-A, the method of administration of the toxin, and the instruments of evaluation of some parameters among these studies may be the cause. In this review, it will study the state-of-the-art use of BoNT-A in obesity basic science models and review the clinical evidence on the therapeutic applications of BoNT-A for obesity.
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Affiliation(s)
- Raffaela Pero
- Department of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", Naples 80131, Italy.
| | - Lorena Coretti
- Department of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", Naples 80131, Italy.
| | - Francesca Lembo
- Dipartimento di Farmacia, Università degli Studi di Napoli "Federico II", via D. Montesano 47, Naples 80131, Italy.
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27
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Association between obesity and asthma - epidemiology, pathophysiology and clinical profile. Nutr Res Rev 2016; 29:194-201. [PMID: 27514726 DOI: 10.1017/s0954422416000111] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Obesity is a risk factor for asthma, and obese asthmatics have lower disease control and increased symptom severity. Several putative links have been proposed, including genetics, mechanical restriction of the chest and the intake of corticosteroids. The most consistent evidence, however, comes from studies of cytokines produced by the adipose tissue called adipokines. Adipokine imbalance is associated with both proinflammatory status and asthma. Although reverse causation has been proposed, it is now acknowledged that obesity precedes asthma symptoms. Nevertheless, prenatal origins of both conditions complicate the search for causality. There is a confirmed role of neuro-immune cross-talk mediating obesity-induced asthma, with leptin playing a key role in these processes. Obesity-induced asthma is now considered a distinct asthma phenotype. In fact, it is one of the most important determinants of asthma phenotypes. Two main subphenotypes have been distinguished. The first phenotype, which affects adult women, is characterised by later onset and is more likely to be non-atopic. The childhood obesity-induced asthma phenotype is characterised by primary and predominantly atopic asthma. In obesity-induced asthma, the immune responses are shifted towards T helper (Th) 1 polarisation rather than the typical atopic Th2 immunological profile. Moreover, obese asthmatics might respond differently to environmental triggers. The high cost of treatment of obesity-related asthma, and the burden it causes for the patients and their families call for urgent intervention. Phenotype-specific approaches seem to be crucial for the success of prevention and treatment.
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28
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Conway EM, Pikor LA, Kung SHY, Hamilton MJ, Lam S, Lam WL, Bennewith KL. Macrophages, Inflammation, and Lung Cancer. Am J Respir Crit Care Med 2016; 193:116-30. [PMID: 26583808 DOI: 10.1164/rccm.201508-1545ci] [Citation(s) in RCA: 179] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Lung cancer is the leading cause of cancer mortality worldwide, and at only 18%, it has one of the lowest 5-year survival rates of all malignancies. With its highly complex mutational landscape, treatment strategies against lung cancer have proved largely ineffective. However with the recent success of immunotherapy trials in lung cancer, there is renewed enthusiasm in targeting the immune component of tumors. Macrophages make up the majority of the immune infiltrate in tumors and are a key cell type linking inflammation and cancer. Although the mechanisms through which inflammation promotes cancer are not fully understood, two connected hypotheses have emerged: an intrinsic pathway, driven by genetic alterations that lead to neoplasia and inflammation, and an extrinsic pathway, driven by inflammatory conditions that increase cancer risk. Here, we discuss the contribution of macrophages to these pathways and subsequently their roles in established tumors. We highlight studies investigating the association of macrophages with lung cancer prognosis and discuss emerging therapeutic strategies for targeting macrophages in the tumor microenvironment.
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Affiliation(s)
- Emma M Conway
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Larissa A Pikor
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Sonia H Y Kung
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Melisa J Hamilton
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Stephen Lam
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Wan L Lam
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Kevin L Bennewith
- Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, British Columbia, Canada
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29
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Harvie MN, Sims AH, Pegington M, Spence K, Mitchell A, Vaughan AA, Allwood JW, Xu Y, Rattray NJW, Goodacre R, Evans DGR, Mitchell E, McMullen D, Clarke RB, Howell A. Intermittent energy restriction induces changes in breast gene expression and systemic metabolism. Breast Cancer Res 2016; 18:57. [PMID: 27233359 PMCID: PMC4884347 DOI: 10.1186/s13058-016-0714-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 04/29/2016] [Indexed: 01/02/2023] Open
Abstract
Background Observational studies suggest weight loss and energy restriction reduce breast cancer risk. Intermittent energy restriction (IER) reduces weight to the same extent as, or more than equivalent continuous energy restriction (CER) but the effects of IER on normal breast tissue and systemic metabolism as indicators of breast cancer risk are unknown. Methods We assessed the effect of IER (two days of 65 % energy restriction per week) for one menstrual cycle on breast tissue gene expression using Affymetrix GeneChips, adipocyte size by morphometry, and systemic metabolism (insulin resistance, lipids, serum and urine metabolites, lymphocyte gene expression) in 23 overweight premenopausal women at high risk of breast cancer. Unsupervised and supervised analyses of matched pre and post IER biopsies in 20 subjects were performed, whilst liquid and gas chromatography mass spectrometry assessed corresponding changes in serum and urine metabolites in all subjects after the two restricted and five unrestricted days of the IER. Results Women lost 4.8 % (±2.0 %) of body weight and 8.0 % (±5.0 %) of total body fat. Insulin resistance (homeostatic model assessment (HOMA)) reduced by 29.8 % (±17.8 %) on the restricted days and by 11 % (±34 %) on the unrestricted days of the IER. Five hundred and twenty-seven metabolites significantly increased or decreased during the two restricted days of IER. Ninety-one percent of these returned to baseline after 5 days of normal eating. Eleven subjects (55 %) displayed reductions in energy restriction-associated metabolic gene pathways including lipid synthesis, gluconeogenesis and glycogen synthesis. Some of these women also had increases in genes associated with breast epithelial cell differentiation (secretoglobulins, milk proteins and mucins) and decreased collagen synthesis (TNMD, PCOLCE2, TIMP4). There was no appreciable effect of IER on breast gene expression in the other nine subjects. These groups did not differ in the degree of changes in weight, total body fat, fat cell size or serum or urine metabolomic markers. Corresponding gene changes were not seen in peripheral blood lymphocytes. Conclusion The transcriptional response to IER is variable in breast tissue, which was not reflected in the systemic response, which occurred in all subjects. The mechanisms of breast responsiveness/non-responsiveness require further investigation. Trial registration ISRCTN77916487 31/07/2012. Electronic supplementary material The online version of this article (doi:10.1186/s13058-016-0714-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Michelle N Harvie
- Genesis Breast Cancer Prevention Centre, University Hospital of South Manchester NHS Foundation Trust, Southmoor Road, Manchester, M23 9LT, UK.
| | - Andrew H Sims
- Applied Bioinformatics of Cancer, University of Edinburgh, Cancer Research UK Centre, Institute of Genetics and Molecular Medicine, Carrington Crescent, Edinburgh, EH4 2XR, UK
| | - Mary Pegington
- Genesis Breast Cancer Prevention Centre, University Hospital of South Manchester NHS Foundation Trust, Southmoor Road, Manchester, M23 9LT, UK
| | - Katherine Spence
- Breast Cancer Now Research Unit, Institute of Cancer Sciences, Academic Health Science Centre, University of Manchester, Wilmslow Road, Manchester, M20 4BX, UK
| | - Adam Mitchell
- Breast Cancer Now Research Unit, Institute of Cancer Sciences, Academic Health Science Centre, University of Manchester, Wilmslow Road, Manchester, M20 4BX, UK
| | - Andrew A Vaughan
- Manchester Institute of Biotechnology, School of Chemistry, University of Manchester, Princess St, Manchester, M1 7DN, UK
| | - J William Allwood
- Manchester Institute of Biotechnology, School of Chemistry, University of Manchester, Princess St, Manchester, M1 7DN, UK
| | - Yun Xu
- Manchester Institute of Biotechnology, School of Chemistry, University of Manchester, Princess St, Manchester, M1 7DN, UK
| | - Nicolas J W Rattray
- Manchester Institute of Biotechnology, School of Chemistry, University of Manchester, Princess St, Manchester, M1 7DN, UK
| | - Royston Goodacre
- Manchester Institute of Biotechnology, School of Chemistry, University of Manchester, Princess St, Manchester, M1 7DN, UK
| | - D Gareth R Evans
- Genesis Breast Cancer Prevention Centre, University Hospital of South Manchester NHS Foundation Trust, Southmoor Road, Manchester, M23 9LT, UK.,The Christie NHS Foundation Trust, University of Manchester, Wilmslow Road, Manchester, M20 4BX, UK
| | - Ellen Mitchell
- Genesis Breast Cancer Prevention Centre, University Hospital of South Manchester NHS Foundation Trust, Southmoor Road, Manchester, M23 9LT, UK
| | - Debbie McMullen
- Genesis Breast Cancer Prevention Centre, University Hospital of South Manchester NHS Foundation Trust, Southmoor Road, Manchester, M23 9LT, UK
| | - Robert B Clarke
- Breast Cancer Now Research Unit, Institute of Cancer Sciences, Academic Health Science Centre, University of Manchester, Wilmslow Road, Manchester, M20 4BX, UK
| | - Anthony Howell
- Genesis Breast Cancer Prevention Centre, University Hospital of South Manchester NHS Foundation Trust, Southmoor Road, Manchester, M23 9LT, UK.,Breast Cancer Now Research Unit, Institute of Cancer Sciences, Academic Health Science Centre, University of Manchester, Wilmslow Road, Manchester, M20 4BX, UK.,The Christie NHS Foundation Trust, University of Manchester, Wilmslow Road, Manchester, M20 4BX, UK
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30
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Kouidhi S, Noman MZ, Kieda C, Elgaaied AB, Chouaib S. Intrinsic and Tumor Microenvironment-Induced Metabolism Adaptations of T Cells and Impact on Their Differentiation and Function. Front Immunol 2016; 7:114. [PMID: 27066006 PMCID: PMC4810024 DOI: 10.3389/fimmu.2016.00114] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 03/14/2016] [Indexed: 01/09/2023] Open
Abstract
It is well recognized that the immune system and metabolism are highly integrated. In this context, multilevel interactions between metabolic system and T lymphocyte signaling and fate exist. This review will discuss different potential cell metabolism pathways involved in shaping T lymphocyte function and differentiation. We will also provide a general framework for understanding how tumor microenvironmental metabolism, associated with hypoxic stress, interferes with T-cell priming and expansion. How T-cell metabolism drives T-cell-mediated immunity and how the manipulation of metabolic programing for therapeutic purposes will be also discussed.
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Affiliation(s)
- Soumaya Kouidhi
- Laboratory BVBGR, LR11ES31, ISBST, Higher Institute of Biotechnology of Sidi Thabet, University of Manouba, Tunis, Tunisia; Laboratory of Genetics, Immunology and Human Pathology, Faculty of Sciences of Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Muhammad Zaeem Noman
- Laboratory «Integrative Tumor Immunology and Genetic Oncology» Equipe Labellisée LIGUE 2015, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR1186, Villejuif, France; Institut National de la Santé et de la Recherche Médicale (INSERM), Gustave Roussy, Univ. Paris-Sud, Université Paris-Saclay, Villejuif, France
| | - Claudine Kieda
- Centre de Biophysique Moléculaire, CNRS UPR 4301 , Orléans , France
| | - Amel Benammar Elgaaied
- Laboratory of Genetics, Immunology and Human Pathology, Faculty of Sciences of Tunis, University Tunis El Manar , Tunis , Tunisia
| | - Salem Chouaib
- Laboratory «Integrative Tumor Immunology and Genetic Oncology» Equipe Labellisée LIGUE 2015, Institut National de la Santé et de la Recherche Médicale (INSERM) UMR1186, Villejuif, France; Institut National de la Santé et de la Recherche Médicale (INSERM), Gustave Roussy, Univ. Paris-Sud, Université Paris-Saclay, Villejuif, France
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31
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The Impact of Dietary Energy Intake Early in Life on the Colonic Microbiota of Adult Mice. Sci Rep 2016; 6:19083. [PMID: 26744222 PMCID: PMC4705468 DOI: 10.1038/srep19083] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Accepted: 11/26/2015] [Indexed: 12/19/2022] Open
Abstract
The complex and dynamic interactions between diet, gut microbiota (GM) structure and function, and colon carcinogenesis are only beginning to be elucidated. We examined the colonic microbiota and aberrant crypt foci (ACF) in C57BL/6N female mice fed various dietary interventions (control, energy restricted and high-fat) provided during two phases (initiation and progression) of azoxymethane (AOM)-induced early colon carcinogenesis. During progression (wks. 22–60), a high-fat diet enhanced ACF formation compared to a control or energy restricted diet. In contrast, energy restriction during initiation phase (wks. 3–21) enhanced ACF burden at 60 weeks, regardless of the diet in progression phase. Alterations in GM structure during the initiation phase diet were partially maintained after changing diets during the progression phase. However, diet during the progression phase had major effects on the mucosal GM. Energy restriction in the progression phase increased Firmicutes and reduced Bacteroidetes compared to a high-fat diet, regardless of initiation phase diet, suggesting that diet may have both transient effects as well as a lasting impact on GM composition. Integration of early life and adult dietary impacts on the colonic microbial structure and function with host molecular processes involved in colon carcinogenesis will be key to defining preventive strategies.
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32
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Harrigan M, Cartmel B, Loftfield E, Sanft T, Chagpar AB, Zhou Y, Playdon M, Li F, Irwin ML. Randomized Trial Comparing Telephone Versus In-Person Weight Loss Counseling on Body Composition and Circulating Biomarkers in Women Treated for Breast Cancer: The Lifestyle, Exercise, and Nutrition (LEAN) Study. J Clin Oncol 2015; 34:669-76. [PMID: 26598750 DOI: 10.1200/jco.2015.61.6375] [Citation(s) in RCA: 123] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
PURPOSE Obesity is associated with a higher risk of breast cancer mortality. The gold standard approach to weight loss is in-person counseling, but telephone counseling may be more feasible. We examined the effect of in-person versus telephone weight loss counseling versus usual care on 6-month changes in body composition, physical activity, diet, and serum biomarkers. METHODS One hundred breast cancer survivors with a body mass index ≥ 25 kg/m(2) were randomly assigned to in-person counseling (n = 33), telephone counseling (n = 34), or usual care (UC) (n = 33). In-person and telephone counseling included 11 30-minute counseling sessions over 6 months. These focused on reducing caloric intake, increasing physical activity, and behavioral therapy. Body composition, physical activity, diet, and serum biomarkers were measured at baseline and 6 months. RESULTS The mean age of participants was 59 ± 7.5 years old, with a mean BMI of 33.1 ± 6.6 kg/m(2), and the mean time from diagnosis was 2.9 ± 2.1 years. Fifty-one percent of the participants had stage I breast cancer. Average 6-month weight loss was 6.4%, 5.4%, and 2.0% for in-person, telephone, and UC groups, respectively (P = .004, P = .009, and P = .46 comparing in-person with UC, telephone with UC, and in-person with telephone, respectively). A significant 30% decrease in C-reactive protein levels was observed among women randomly assigned to the combined weight loss intervention groups compared with a 1% decrease among women randomly assigned to UC (P = .05). CONCLUSION Both in-person and telephone counseling were effective weight loss strategies, with favorable effects on C-reactive protein levels. Our findings may help guide the incorporation of weight loss counseling into breast cancer treatment and care.
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Affiliation(s)
- Maura Harrigan
- Maura Harrigan, Brenda Cartmel, Erikka Loftfield, Tara Sanft, Anees B. Chagpar, Yang Zhou, Mary Playdon, Fangyong Li, and Melinda L. Irwin, Yale University; Brenda Cartmel, Tara Sanft, Anees B. Chagpar, Yang Zhou, Fangyong Li, and Melinda L. Irwin, Yale Cancer Center, New Haven, CT; and Erikka Loftfield and Mary Playdon, National Cancer Institute, Bethesda, MD
| | - Brenda Cartmel
- Maura Harrigan, Brenda Cartmel, Erikka Loftfield, Tara Sanft, Anees B. Chagpar, Yang Zhou, Mary Playdon, Fangyong Li, and Melinda L. Irwin, Yale University; Brenda Cartmel, Tara Sanft, Anees B. Chagpar, Yang Zhou, Fangyong Li, and Melinda L. Irwin, Yale Cancer Center, New Haven, CT; and Erikka Loftfield and Mary Playdon, National Cancer Institute, Bethesda, MD
| | - Erikka Loftfield
- Maura Harrigan, Brenda Cartmel, Erikka Loftfield, Tara Sanft, Anees B. Chagpar, Yang Zhou, Mary Playdon, Fangyong Li, and Melinda L. Irwin, Yale University; Brenda Cartmel, Tara Sanft, Anees B. Chagpar, Yang Zhou, Fangyong Li, and Melinda L. Irwin, Yale Cancer Center, New Haven, CT; and Erikka Loftfield and Mary Playdon, National Cancer Institute, Bethesda, MD
| | - Tara Sanft
- Maura Harrigan, Brenda Cartmel, Erikka Loftfield, Tara Sanft, Anees B. Chagpar, Yang Zhou, Mary Playdon, Fangyong Li, and Melinda L. Irwin, Yale University; Brenda Cartmel, Tara Sanft, Anees B. Chagpar, Yang Zhou, Fangyong Li, and Melinda L. Irwin, Yale Cancer Center, New Haven, CT; and Erikka Loftfield and Mary Playdon, National Cancer Institute, Bethesda, MD
| | - Anees B Chagpar
- Maura Harrigan, Brenda Cartmel, Erikka Loftfield, Tara Sanft, Anees B. Chagpar, Yang Zhou, Mary Playdon, Fangyong Li, and Melinda L. Irwin, Yale University; Brenda Cartmel, Tara Sanft, Anees B. Chagpar, Yang Zhou, Fangyong Li, and Melinda L. Irwin, Yale Cancer Center, New Haven, CT; and Erikka Loftfield and Mary Playdon, National Cancer Institute, Bethesda, MD
| | - Yang Zhou
- Maura Harrigan, Brenda Cartmel, Erikka Loftfield, Tara Sanft, Anees B. Chagpar, Yang Zhou, Mary Playdon, Fangyong Li, and Melinda L. Irwin, Yale University; Brenda Cartmel, Tara Sanft, Anees B. Chagpar, Yang Zhou, Fangyong Li, and Melinda L. Irwin, Yale Cancer Center, New Haven, CT; and Erikka Loftfield and Mary Playdon, National Cancer Institute, Bethesda, MD
| | - Mary Playdon
- Maura Harrigan, Brenda Cartmel, Erikka Loftfield, Tara Sanft, Anees B. Chagpar, Yang Zhou, Mary Playdon, Fangyong Li, and Melinda L. Irwin, Yale University; Brenda Cartmel, Tara Sanft, Anees B. Chagpar, Yang Zhou, Fangyong Li, and Melinda L. Irwin, Yale Cancer Center, New Haven, CT; and Erikka Loftfield and Mary Playdon, National Cancer Institute, Bethesda, MD
| | - Fangyong Li
- Maura Harrigan, Brenda Cartmel, Erikka Loftfield, Tara Sanft, Anees B. Chagpar, Yang Zhou, Mary Playdon, Fangyong Li, and Melinda L. Irwin, Yale University; Brenda Cartmel, Tara Sanft, Anees B. Chagpar, Yang Zhou, Fangyong Li, and Melinda L. Irwin, Yale Cancer Center, New Haven, CT; and Erikka Loftfield and Mary Playdon, National Cancer Institute, Bethesda, MD
| | - Melinda L Irwin
- Maura Harrigan, Brenda Cartmel, Erikka Loftfield, Tara Sanft, Anees B. Chagpar, Yang Zhou, Mary Playdon, Fangyong Li, and Melinda L. Irwin, Yale University; Brenda Cartmel, Tara Sanft, Anees B. Chagpar, Yang Zhou, Fangyong Li, and Melinda L. Irwin, Yale Cancer Center, New Haven, CT; and Erikka Loftfield and Mary Playdon, National Cancer Institute, Bethesda, MD.
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Santoro MA, Blue RE, Andres SF, Mah AT, Van Landeghem L, Lund PK. Obesity and intestinal epithelial deletion of the insulin receptor, but not the IGF 1 receptor, affect radiation-induced apoptosis in colon. Am J Physiol Gastrointest Liver Physiol 2015; 309:G578-89. [PMID: 26251471 PMCID: PMC4593818 DOI: 10.1152/ajpgi.00189.2015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 07/31/2015] [Indexed: 01/31/2023]
Abstract
Current views suggest that apoptosis eliminates genetically damaged cells that may otherwise form tumors. Prior human studies link elevated insulin and reduced apoptosis to risk of colorectal adenomas. We hypothesized that hyperinsulinemia associated with obesity would lead to reduced colon epithelial cell (CEC) apoptosis after radiation and that this effect would be altered by deletion of the insulin-like growth factor (IGF) 1 receptor (IGF1R) or the insulin receptor (IR). Mice with villin-Cre-mediated IGF1R or IR deletion in CECs and floxed littermates were fed a high-fat diet to induce obesity and hyperinsulinemia or control low-fat chow. Mice were exposed to 5-Gy abdominal radiation to induce DNA damage and euthanized 4 h later for evaluation of apoptosis by localization of cleaved caspase-3. Obese mice exhibited decreased apoptosis of genetically damaged CECs. IGF1R deletion did not affect CEC apoptosis in lean or obese animals. In contrast, IR loss increased CEC apoptosis in both diet groups but did not prevent antiapoptotic effects of obesity. Levels of p53 protein were significantly reduced in CECs of obese mice with intact IR but increased in both lean and obese mice without IR. Levels of mRNAs encoding proapoptotic Perp and the cell cycle inhibitor Cdkn1b/p27 were reduced in CECs of obese mice and increased in lean mice lacking IR. Together, our studies provide novel evidence for antiapoptotic roles of obesity and IR, but not IGF1R, in colonic epithelium after DNA damage. However, neither IR nor IGF1R deletion prevented a reduction in radiation-induced CEC apoptosis during obesity and hyperinsulinemia.
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Affiliation(s)
- M. Agostina Santoro
- 1Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; and
| | - R. Eric Blue
- 1Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; and
| | - Sarah F. Andres
- 1Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; and
| | - Amanda T. Mah
- 2Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Laurianne Van Landeghem
- 1Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; and
| | - P. Kay Lund
- 1Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; and
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Elattar S, Satyanarayana A. Can Brown Fat Win the Battle Against White Fat? J Cell Physiol 2015; 230:2311-7. [PMID: 25760392 DOI: 10.1002/jcp.24986] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Accepted: 03/06/2015] [Indexed: 12/31/2022]
Abstract
A rapid growth in the overweight and obese population in the last few decades suggest that the current diet, exercise, awareness or drug strategies are still not effectively restraining the obesity epidemic. Obesity results from increased energy intake, and the body's energy balance shifts towards energy abundance. Therefore, current research is focused on developing new strategies aimed at increasing energy expenditure. As a result, brown adipose tissue (BAT) is receiving tremendous attention since the major function of BAT is to dissipate energy as heat. For example, mouse models that have increased BAT activity or increased numbers of brown-like adipocytes within the white adipose tissue (WAT) are lean and protected from obesity. Alternatively, mouse models that lack BAT activity are more susceptible to age and diet-induced obesity. However, a significant loss of BAT mass during the natural growth process in humans has created enormous challenges in effectively utilizing this tissue to increase energy expenditure. New strategies are primarily focused on expanding the BAT mass and/or activating the existing BAT. In this regard, recent finding that expression of early B cell factor-2 (Ebf2) reprograms the white pre-adipocytes into brown adipocytes is a significant break-through in developing BAT-mediated strategies to treat obesity. Here we review the major biological functions of WAT and BAT, which play critical but opposing roles in the energy spectrum, energy storage versus energy expenditure, and we evaluate whether activation and/or expansion of BAT is practically achievable to treat obesity in humans.
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Affiliation(s)
- Sawsan Elattar
- Department of Biochemistry and Molecular Biology, Molecular Oncology & Biomarkers Program, Georgia Regents University Cancer Center, Georgia Regents University, Room-CN3150, 1410 Laney Walker Blvd., Augusta, Georgia
| | - Ande Satyanarayana
- Department of Biochemistry and Molecular Biology, Molecular Oncology & Biomarkers Program, Georgia Regents University Cancer Center, Georgia Regents University, Room-CN3150, 1410 Laney Walker Blvd., Augusta, Georgia
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Jacquez GM, Sabel CE, Shi C. Genetic GIScience: Toward a Place-Based Synthesis of the Genome, Exposome, and Behavome. ANNALS OF THE ASSOCIATION OF AMERICAN GEOGRAPHERS. ASSOCIATION OF AMERICAN GEOGRAPHERS 2015; 105:454-472. [PMID: 26339073 PMCID: PMC4554694 DOI: 10.1080/00045608.2015.1018777] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The exposome, defined as the totality of an individual's exposures over the life course, is a seminal concept in the environmental health sciences. Although inherently geographic, the exposome as yet is unfamiliar to many geographers. This article proposes a place-based synthesis, genetic geographic information science (Genetic GISc) that is founded on the exposome, genome+ and behavome. It provides an improved understanding of human health in relation to biology (the genome+), environmental exposures (the exposome), and their social, societal and behavioral determinants (the behavome). Genetic GISc poses three key needs: First, a mathematical foundation for emergent theory; Second, process-based models that bridge biological and geographic scales; Third, biologically plausible estimates of space-time disease lags. Compartmental models are a possible solution; this article develops two models using pancreatic cancer as an exemplar. The first models carcinogenesis based on the cascade of mutations and cellular changes that lead to metastatic cancer. The second models cancer stages by diagnostic criteria. These provide empirical estimates of the distribution of latencies in cellular states and disease stages, and maps of the burden of yet to be diagnosed disease. This approach links our emerging knowledge of genomics to cancer progression at the cellular level, to individuals and their cancer stage at diagnosis, to geographic distributions of cancer in extant populations. These methodological developments and exemplar provide the basis for a new synthesis in health geography: genetic geographic information science.
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Affiliation(s)
- Geoffrey M Jacquez
- Department of Geography, University at Buffalo-State University of New York ; BioMedware
| | - Clive E Sabel
- School of Geographical Sciences, University of Bristol
| | - Chen Shi
- Department of Geography, University at Buffalo-State University of New York
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Kullmann A, Weber PS, Bishop JB, Roux TM, Norby B, Burns TA, McCutcheon LJ, Belknap JK, Geor RJ. Equine insulin receptor and insulin-like growth factor-1 receptor expression in digital lamellar tissue and insulin target tissues. Equine Vet J 2015; 48:626-32. [DOI: 10.1111/evj.12474] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Accepted: 06/09/2015] [Indexed: 11/29/2022]
Affiliation(s)
- A. Kullmann
- Department of Large Animal Clinical Sciences; Michigan State University; East Lansing USA
| | - P. S. Weber
- Department of Large Animal Clinical Sciences; Michigan State University; East Lansing USA
| | - J. B. Bishop
- Department of Large Animal Clinical Sciences; Michigan State University; East Lansing USA
| | - T. M. Roux
- Department of Large Animal Clinical Sciences; Michigan State University; East Lansing USA
| | - B. Norby
- Department of Large Animal Clinical Sciences; Michigan State University; East Lansing USA
| | - T. A. Burns
- Department of Veterinary Clinical Sciences; The Ohio State University; Columbus USA
| | - L. J. McCutcheon
- Department of Pathobiology and Diagnostic Investigation; Michigan State University; East Lansing USA
| | - J. K. Belknap
- Department of Veterinary Clinical Sciences; The Ohio State University; Columbus USA
| | - R. J. Geor
- Department of Large Animal Clinical Sciences; Michigan State University; East Lansing USA
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Mendonça F, Soares R. Obesity and cancer phenotype: Is angiogenesis a missed link? Life Sci 2015; 139:16-23. [PMID: 26297445 DOI: 10.1016/j.lfs.2015.08.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 07/28/2015] [Accepted: 08/14/2015] [Indexed: 12/13/2022]
Abstract
Obesity remains nowadays one of the main threats to human health, being a problem of worldwide proportions. It is characterized by augmented storage of fatty acids in an enlarged adipose tissue. This process is possible thanks to a rich capillary network, supported by a mechanism that has also a crucial role on cancer: angiogenesis. Given that several studies point obesity as a risk factor for cancer development, angiogenesis may be approached as the missed link between these two pathologies. Understanding the different pathways behind angiogenesis becomes essential to break this link by developing new anti-angiogenic therapies or improving the actual ones. In the first phase, this paper will focus the structural and cellular changes that adipose tissue suffers in obesity. Then, the main pro-angiogenic players will be reviewed, taking into account the pathways that explain their putative role in obesity-cancer link. Finally, the clinical implications of the presented mechanisms will also be regarded, being the main focus on the anti-angiogenic therapies.
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Affiliation(s)
- Fernando Mendonça
- Department of Biochemistry, Faculty of Medicine, University of Porto, Portugal
| | - Raquel Soares
- Department of Biochemistry, Faculty of Medicine, University of Porto, Portugal; Instituto de Investigação e Inovação em Saúde da Universidade do Porto, Portugal.
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Ngo HT, Hetland RB, Nygaard UC, Steffensen IL. Genetic and Diet-Induced Obesity Increased Intestinal Tumorigenesis in the Double Mutant Mouse Model Multiple Intestinal Neoplasia X Obese via Disturbed Glucose Regulation and Inflammation. J Obes 2015; 2015:343479. [PMID: 26347815 PMCID: PMC4546984 DOI: 10.1155/2015/343479] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 06/17/2015] [Accepted: 07/08/2015] [Indexed: 12/18/2022] Open
Abstract
We have studied how spontaneous or carcinogen-induced intestinal tumorigenesis was affected by genetic or diet-induced obesity in C57BL/6J-Apc (Min/+) X C57BL/6J-Lep (ob/+) mice. Obesity was induced by the obese (ob) mutation in the lep gene coding for the hormone leptin, or by a 45% fat diet. The effects of obesity were examined on spontaneous intestinal tumors caused by the multiple intestinal neoplasia (Min) mutation in the adenomatous polyposis coli (Apc) gene and on tumors induced by the dietary carcinogen 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP). F1 ob/ob (homozygous mutated) mice had increased body weight (bw) and number of spontaneous and PhIP-induced small intestinal tumors (in Apc (Min/+) mice), versus ob/wt (heterozygous mutated) and wt/wt mice (homozygous wild-type). A 45% fat diet exacerbated bw and spontaneous tumor numbers versus 10% fat, but not PhIP-induced tumors. Except for bw, ob/wt and wt/wt were not significantly different. The obesity caused hyperglucosemia and insulinemia in ob/ob mice. A 45% fat diet further increased glucose, but not insulin. Inflammation was seen as increased TNFα levels in ob/ob mice. Thus the results implicate disturbed glucose regulation and inflammation as mechanisms involved in the association between obesity and intestinal tumorigenesis. Ob/ob mice had shorter lifespan than ob/wt and wt/wt mice.
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Affiliation(s)
- Ha Thi Ngo
- Department of Food, Water and Cosmetics, Division of Environmental Medicine, Norwegian Institute of Public Health, P.O. Box 4404 Nydalen, 0403 Oslo, Norway
| | - Ragna Bogen Hetland
- Department of Food, Water and Cosmetics, Division of Environmental Medicine, Norwegian Institute of Public Health, P.O. Box 4404 Nydalen, 0403 Oslo, Norway
| | - Unni Cecilie Nygaard
- Department of Food, Water and Cosmetics, Division of Environmental Medicine, Norwegian Institute of Public Health, P.O. Box 4404 Nydalen, 0403 Oslo, Norway
| | - Inger-Lise Steffensen
- Department of Food, Water and Cosmetics, Division of Environmental Medicine, Norwegian Institute of Public Health, P.O. Box 4404 Nydalen, 0403 Oslo, Norway
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Genome-wide screen of DNA methylation identifies novel markers in childhood obesity. Gene 2015; 566:74-83. [PMID: 25871514 DOI: 10.1016/j.gene.2015.04.032] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 03/20/2015] [Accepted: 04/10/2015] [Indexed: 11/21/2022]
Abstract
Epigenetic modifications have been highlighted in chronic non-communicable diseases. The aim of this study was to investigate genome-wide DNA methylation for the identification of methylation markers in obesity. With obese Chinese preschool children, we performed comprehensive DNA methylation profiling of gene promoters and CpG islands to determine the differentially methylated genes using methylated DNA immunoprecipitation followed by hybridization to the NimbleGen Human DNA Methylation 385K Promoter Plus CpG Island Microarray. We found that compared to lean children, 251 promoters and 575 CGIs were demethylated, and 141 promoters and 277 CGIs were hypermethylated in obese children, and their distribution on chromosomes was imbalanced, showing more promoters and CGIs with demethylation on chromosomes 3, 16, 17 and 19 and more differentially methylated promoters and CGIs on chromosome X compared with chromosome Y. Further analysis indicated that aberrant methylations occurred mostly in HCP promoters and promoter CGIs. Among the top 80 promoters and CGIs that had differentiated methylation between obese and lean children, nearly half have been previously studied, and almost all of them are involved in the pathogenesis of cancers that are associated with many organs. Furthermore, four genes (FZD7, PRLHR, EXOSC4, and EIF6) with differential promoter methylation were validated, and their associations with obesity must be clarified. In conclusion, this study represents the first effort to determine methylation markers in obese Chinese children, which has potential relevance for identifying markers that are useful in elucidating the mechanisms of obesity pathogenesis and its complications.
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Ngo HT, Hetland RB, Steffensen IL. The intrauterine and nursing period is a window of susceptibility for development of obesity and intestinal tumorigenesis by a high fat diet in Min/+ mice as adults. J Obes 2015; 2015:624023. [PMID: 25874125 PMCID: PMC4383426 DOI: 10.1155/2015/624023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Revised: 12/14/2014] [Accepted: 12/16/2014] [Indexed: 11/18/2022] Open
Abstract
We studied how obesogenic conditions during various life periods affected obesity and intestinal tumorigenesis in adult C57BL/6J-Min (multiple intestinal neoplasia)/+ mice. The mice were given a 10% fat diet throughout life (negative control) or a 45% fat diet in utero, during nursing, during both in utero and nursing, during adult life, or during their whole life-span, and terminated at 11 weeks for tumorigenesis (Min/+) or 23 weeks for obesogenic effect (wild-type). Body weight at 11 weeks was increased after a 45% fat diet during nursing, during both in utero and nursing, and throughout life, but had normalized at 23 weeks. In the glucose tolerance test, the early exposure to a 45% fat diet in utero, during nursing, or during both in utero and nursing, did not affect blood glucose, whereas a 45% fat diet given to adults or throughout life did. However, a 45% fat diet during nursing or during in utero and nursing increased the number of small intestinal tumors. So did exposures to a 45% fat diet in adult life or throughout life, but without increasing the tumor numbers further. The intrauterine and nursing period is a window of susceptibility for dietary fat-induced obesity and intestinal tumor development.
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Affiliation(s)
- Ha Thi Ngo
- Department of Food, Water and Cosmetics, Division of Environmental Medicine, Norwegian Institute of Public Health, P.O. Box 4404 Nydalen, 0403 Oslo, Norway
| | - Ragna Bogen Hetland
- Department of Food, Water and Cosmetics, Division of Environmental Medicine, Norwegian Institute of Public Health, P.O. Box 4404 Nydalen, 0403 Oslo, Norway
| | - Inger-Lise Steffensen
- Department of Food, Water and Cosmetics, Division of Environmental Medicine, Norwegian Institute of Public Health, P.O. Box 4404 Nydalen, 0403 Oslo, Norway
- *Inger-Lise Steffensen:
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Sharma BK, Patil M, Satyanarayana A. Negative regulators of brown adipose tissue (BAT)-mediated thermogenesis. J Cell Physiol 2014; 229:1901-7. [PMID: 24809334 DOI: 10.1002/jcp.24664] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Accepted: 05/06/2014] [Indexed: 12/12/2022]
Abstract
Brown adipose tissue (BAT) is specialized for energy expenditure, a process called adaptive thermogenesis. PET-CT scans recently demonstrated the existence of metabolically active BAT in adult humans, which revitalized our interest in BAT. Increasing the amount and/or activity of BAT holds tremendous promise for the treatment of obesity and its associated diseases. PGC1α is the master regulator of UCP1-mediated thermogenesis in BAT. A number of proteins have been identified to influence thermogenesis either positively or negatively through regulating the expression or transcriptional activity of PGC1α. Therefore, BAT activation can be achieved by either inducing the expression of positive regulators of PGC1α or by inhibiting the repressors of the PGC1α/UCP1 pathway. Here, we review the most important negative regulators of PGC1α/UCP1 signaling and their mechanism of action in BAT-mediated thermogenesis.
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Affiliation(s)
- Bal Krishan Sharma
- Department of Biochemistry and Molecular Biology, Molecular Oncology and Biomarkers Program, Georgia Regents University Cancer Center, Georgia Regents University, Augusta, Georgia
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Santoro MA, Andres SF, Galanko JA, Sandler RS, Keku TO, Lund PK. Reduced insulin-like growth factor I receptor and altered insulin receptor isoform mRNAs in normal mucosa predict colorectal adenoma risk. Cancer Epidemiol Biomarkers Prev 2014; 23:2093-100. [PMID: 25017244 DOI: 10.1158/1055-9965.epi-14-0177] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Hyperinsulinemia resulting from obesity and insulin resistance is associated with increased risk of many cancers, but the biology underlying this risk is unclear. We hypothesized that increased mRNA levels of the insulin-like growth factor I receptor (IGFIR) versus the insulin receptor (IR) or elevated ratio of IR-A:IR-B isoforms in normal rectal mucosa would predict adenoma risk, particularly in individuals with high body mass index (BMI) or plasma insulin. METHODS Biopsies from normal rectal mucosa were obtained from consenting patients undergoing routine colonoscopy at University of North Carolina Hospitals (Chapel Hill, NC). Subjects with colorectal adenomas were classified as cases (n = 100) and were matched to adenoma-free controls (n = 98) based on age, sex, and BMI. IGFIR and IR mRNA levels were assessed by qRT-PCR, and IR-A:IR-B mRNA ratios by standard PCR. Plasma insulin and crypt apoptosis were measured by ELISA and terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL), respectively. Logistic regression models examined relationships between receptor mRNAs, BMI, plasma insulin, and adenoma risk. RESULTS Unexpectedly, cases were significantly more likely to have lower IGFIR mRNA levels than controls. No overall differences in total IR mRNA or IR-A:IR-B ratios were observed between cases and controls. Interestingly, in patients with high plasma insulin, increased IR-A:IR-B ratio was associated with increased likelihood of having adenomas. CONCLUSIONS Our work shows novel findings that reduced IGFIR mRNA and, during high plasma insulin, increased IR-A:IR-B ratios in normal rectal mucosa are associated with colorectal adenoma risk. IMPACT Our work provides evidence supporting a link between IGFIR and IR isoform expression levels and colorectal adenoma risk.
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Affiliation(s)
- M Agostina Santoro
- Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Sarah F Andres
- Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Joseph A Galanko
- Department of Medicine and Center for Gastrointestinal Biology and Disease, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Robert S Sandler
- Department of Medicine and Center for Gastrointestinal Biology and Disease, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Temitope O Keku
- Department of Medicine and Center for Gastrointestinal Biology and Disease, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - P Kay Lund
- Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
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Patil M, Sharma BK, Satyanarayana A. Id transcriptional regulators in adipogenesis and adipose tissue metabolism. Front Biosci (Landmark Ed) 2014; 19:1386-97. [PMID: 24896358 DOI: 10.2741/4289] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Id proteins (Id1-Id4) are helix-loop-helix (HLH) transcriptional regulators that lack a basic DNA binding domain. They act as negative regulators of basic helix-loop-helix (bHLH) transcription factors by forming heterodimers and inhibit their DNA binding and transcriptional activity. Id proteins are implicated in the regulation of various cellular mechanisms such as cell proliferation, cellular differentiation, cell fate determination, angiogenesis and tumorigenesis. A handful of recent studies also disclosed that Id proteins have critical functions in adipocyte differentiation and adipose tissue metabolism. Here, we reviewed the progress made thus far in understanding the specific functions of Id proteins in adipose tissue differentiation and metabolism. In addition to reviewing the known mechanisms of action, we also discuss possible additional mechanisms in which Id proteins might participate in regulating adipogenic and metabolic pathways.
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Abstract
Overweight and obesity have reached pandemic levels on a worldwide basis and are associated with increased risk and worse prognosis for many but not all malignancies. Pathophysiologic processes that affect this association are reviewed, with a focus on the relationship between type 2 diabetes mellitus and cancer, lessons learned from the use of murine models to study the association, the impact of obesity on pancreatic cancer, the effects of dietary fats and cholesterol on cancer promotion, and the mechanisms by which the intestinal microbiome affects obesity and cancer.
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Affiliation(s)
- Nathan A Berger
- Departments of Medicine, Biochemistry, and Genetics, Center for Science, Health and Society, Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, Ohio
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45
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Wells JCK, Cole TJ. Height, adiposity and hormonal cardiovascular risk markers in childhood: how to partition the associations? Int J Obes (Lond) 2014; 38:930-5. [PMID: 24509503 PMCID: PMC4088335 DOI: 10.1038/ijo.2014.24] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Revised: 01/14/2014] [Accepted: 01/17/2014] [Indexed: 01/19/2023]
Abstract
Objective: Obesity is associated with rapid growth during childhood. There is uncertainty over how to adjust for body size, when using adiposity as a proxy for cardiovascular risk. We studied associations of height, body composition (by dual-energy X-ray absorptiometry) and cardiovascular risk markers (insulin resistance (IR), leptin) in children. Methods: Using partial correlations in 172 children aged 7–12 years, we investigated associations of (a) fat mass with IR or leptin, adjusting for height or lean mass, and (b) height or lean mass with IR or leptin, adjusting for fat mass. Analyses were conducted both cross-sectionally at each age, and for changes between 7 and 12 years. Results: Height, fat mass, lean mass, IR and leptin were all inter-correlated at all ages. Although fat mass was strongly associated with IR and leptin, height was independently negatively associated with leptin (whole sample, adjusting for age: boys r=−0.12, girls r=−0.13; P<0.001). Independent of adiposity, height was also associated with insulin IR (whole sample, adjusting for age: boys r=0.11, girls r=0.20; P<0.001). When analysed by year of age, these associations tended to remain significant at older ages. Change in height from 7 to 12 years was also associated with change in IR (boys: r=0.18, P<0.05; girls: r=0.34, P<0.01), independently of change in adiposity, with similar findings for lean mass. Conclusions: During childhood, markers of cardiovascular risk have a complex profile, associated with growth as well as fat accumulation. Taller and faster-growing children have elevated risk markers, independently of their adiposity. These findings have implications for the interpretation of pediatric indices of adiposity that aim to adjust for body size. Adiposity indices that perform best at summarizing metabolic risk may not be those that perform best at understanding the developmental aetiology of risk.
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Affiliation(s)
- J C K Wells
- Childhood Nutrition Research Centre, UCL Institute of Child Health, London, UK
| | - T J Cole
- Centre for Paediatric Epidemiology and Biostatistics, UCL Institute of Child Health, University College, London, UK
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