Circulating sex hormone levels and colorectal cancer risk in Japanese postmenopausal women: The JPHC nested case–control study DOI Open Access
Nagisa Mori, Norie Sawada, Motoki Iwasaki

et al.

International Journal of Cancer, Journal Year: 2019, Volume and Issue: 145(5), P. 1238 - 1244

Published: May 27, 2019

Previous epidemiological studies evaluated endogenous sex hormone levels and colorectal cancer (CRC) risk have yielded inconsistent results. Also, it is unknown if consumption of dietary isoflavones may influence the hormones CRC relationships. We conducted a nested case-control study within JPHC Study Cohort II wherein 11,644 women provided blood samples at 5-year follow-up survey. selected two matched controls for each case from cohort (185 cases 361 controls). Multivariable conditional logistic regression was used to estimate odds ratios (ORs), 95% confidence intervals (CIs) association between circulating risk. Comparing extreme tertiles, testosterone were positively associated with (OR = 2.10, CI 1.11-3.99, p trend 0.03). Levels estradiol, SHBG, progesterone not In subgroup analysis by isoflavone intake, SHBG among those low total intake (p 0.03), statistically nonsignificant inverse high 0.22; interaction 0.002). Endogenous postmenopausal women. The development be altered level intake.

Language: Английский

Suppressive effects of androgens on the immune system DOI

Abhishek Trigunaite,

Joana Dimo,

Trine N. Jørgensen

et al.

Cellular Immunology, Journal Year: 2015, Volume and Issue: 294(2), P. 87 - 94

Published: Feb. 14, 2015

Language: Английский

Citations

461

The Regulation of Steroid Action by Sulfation and Desulfation DOI Creative Commons
Jonathan Wolf Mueller, Lorna C Gilligan, Jan Idkowiak

et al.

Endocrine Reviews, Journal Year: 2015, Volume and Issue: 36(5), P. 526 - 563

Published: July 27, 2015

Steroid sulfation and desulfation are fundamental pathways vital for a functional vertebrate endocrine system. After biosynthesis, hydrophobic steroids sulfated to expedite circulatory transit. Target cells express transmembrane organic anion-transporting polypeptides that facilitate cellular uptake of steroids. Once intracellular, sulfatases hydrolyze these steroid sulfate esters their unconjugated, usually active, forms. Because most can be sulfated, including cholesterol, pregnenolone, dehydroepiandrosterone, estrone, understanding the function, tissue distribution, regulation processes provides significant insights into normal function. Not surprisingly, dysregulation is associated with numerous pathologies, steroid-dependent cancers, polycystic ovary syndrome, X-linked ichthyosis. Here we provide comprehensive examination our current knowledge endocrine-related pathways. We describe interplay between sulfotransferases, showing how expression influences action. Furthermore, address role play in regulating intracellular concentrations patterns influence many especially cancer. Finally, recent advances pharmacologically targeting steroidogenic will examined.

Language: Английский

Citations

365

The gut microbiota is a major regulator of androgen metabolism in intestinal contents DOI Creative Commons
Hannah Colldén,

Andreas Landin,

Ville Wallenius

et al.

AJP Endocrinology and Metabolism, Journal Year: 2019, Volume and Issue: 317(6), P. E1182 - E1192

Published: Nov. 5, 2019

Androgens exert important effects both in androgen-responsive tissues and the intestinal tract. To determine impact of gut microbiota (GM) on androgen metabolism, we measured unconjugated (free) glucuronidated levels contents from small intestine, with a low bacterial density, cecum colon, high density. Using specific, sensitive gas chromatography-tandem mass spectrometry method, detected testosterone (T) dihydrotestosterone (DHT) content mice sexes, whereas distal intestine observed remarkably free DHT, exceeding serum by >20-fold. Similarly, young adult men >70-fold higher than serum, were feces. In contrast to normal GM composition, germ-free had T but very DHT levels, intestine. These findings demonstrate that is involved metabolism deglucuronidation T, resulting extremely most potent androgen, colonic healthy men.

Language: Английский

Citations

185

Sexual Dimorphism in Colon Cancer DOI Creative Commons

Maria Abancens,

Viviana Bustos,

Harry Harvey

et al.

Frontiers in Oncology, Journal Year: 2020, Volume and Issue: 10

Published: Dec. 9, 2020

A higher incidence of colorectal cancer (CRC) is found in males compared to females. Young women (18-44 years) with CRC have a better survival outcome men the same age or older (over 50 years), indicating global sexual dimorphism rates and survival. This suggests protective role for sex steroid hormone estrogen development. Key proliferative pathways tumorigenesis exhibit dimorphism, which confer females through regulated genes cell signaling. Estrogen regulates activity class Kv channels (KCNQ1:KCNE3), control fundamental ion transport functions colon epithelial mesenchymal transition bi-directional interactions Wnt/β-catenin signalling pathway. also modulates responses hypoxia

Language: Английский

Citations

143

Sex differences in colorectal cancer: with a focus on sex hormone–gut microbiome axis DOI Creative Commons
Zihong Wu, Yuqing Huang, Renyi Zhang

et al.

Cell Communication and Signaling, Journal Year: 2024, Volume and Issue: 22(1)

Published: March 7, 2024

Abstract Sexual dimorphism has been observed in the incidence and prognosis of colorectal cancer (CRC), with men generally exhibiting a slightly higher than women. Research suggests that this difference may be attributed to variations sex steroid hormone levels gut microbiome. The microbiome CRC shows composition function between sexes, leading concept ‘microgenderome’ ‘sex hormone–gut axis.’ Conventional research indicates estrogens, by promoting more favorable microbiota, reduce risk CRC. Conversely, androgens have direct pro-tumorigenic effect increasing proportion opportunistic pathogens. microbiota also influence expressing specific enzymes or directly affecting gonadal function. However, area remains controversial. This review aims explore differences incidence, phenomenon sexual within microbiome, intricate interplay axis objective is gain better understanding these interactions their potential clinical implications, as well introduce innovative approaches treatment. Graphical

Language: Английский

Citations

19

The mini-driver model of polygenic cancer evolution DOI
Francesc Castro-Giner, Peter J. Ratcliffe, Ian Tomlinson

et al.

Nature reviews. Cancer, Journal Year: 2015, Volume and Issue: 15(11), P. 680 - 685

Published: Oct. 12, 2015

Language: Английский

Citations

126

X chromosome protects against bladder cancer in females via aKDM6A-dependent epigenetic mechanism DOI Creative Commons
Satoshi Kaneko, Xue Li

Science Advances, Journal Year: 2018, Volume and Issue: 4(6)

Published: June 1, 2018

Why are men more likely than women to have cancer? We report that the genetic inequality is an independent intrinsic cause.

Language: Английский

Citations

122

Genome-Wide Sex and Gender Differences in Cancer DOI Creative Commons
Camila M. Lopes‐Ramos, John Quackenbush, Dawn L. DeMeo

et al.

Frontiers in Oncology, Journal Year: 2020, Volume and Issue: 10

Published: Nov. 23, 2020

Despite their known importance in clinical medicine, differences based on sex and gender are among the least studied factors affecting cancer susceptibility, progression, survival, therapeutic response. In particular, molecular mechanisms driving poorly understood so most approaches to precision medicine use mutational or other genomic data assign therapy without considering how of individual might influence efficacy. The mandate by National Institutes Health that research studies include as a biological variable has begun expand our understanding its importance. Sex may arise due combination environmental, genetic, epigenetic factors, well gene regulation, expression. Extensive occur genome-wide, ultimately biology outcomes. this review, we summarize current state knowledge about sex-specific genetic genome-wide influences cancer, describe response environmental exposures alterations alter trajectory disease, provide insights into integrative analyses interplay genomics cancer. will explore some emerging analytical approaches, such network methods, providing deeper drivers gender. Better these complex interactions improve prevention, treatment, outcomes for all individuals.

Language: Английский

Citations

119

Colon cancer and the epidermal growth factor receptor: Current treatment paradigms, the importance of diet, and the role of chemoprevention DOI Creative Commons
Baldeep Pabla

World Journal of Clinical Oncology, Journal Year: 2015, Volume and Issue: 6(5), P. 133 - 133

Published: Jan. 1, 2015

and the second deadliest type of cancer for both men women in United States claiming over 50000 lives 2014.The 5-year survival rate patients diagnosed with metastatic colon rectal is < 15%.Early detection more effective treatments are urgently needed to reduce morbidity mortality afflicted this disease.Here we will review risk factors current treatment paradigms colorectal cancer, an emphasis on role chemoprevention as they relate epidermal growth factor receptor (EGFR) blockade.We discuss how various EGFR ligands upregulated presence Western diets high saturated N-6 polyunsaturated fats.We also outline mechanisms inhibition that induced by naturally occurring chemopreventative agents such ginseng, green tea, curcumin.Finally, targeted chemotherapy limitations our options, describing resistance escape.

Language: Английский

Citations

112

Fitness trade-offs incurred by ovary-to-gut steroid signalling in Drosophila DOI

Sara Mahmoud H. Ahmed,

Julieta A. Maldera,

Damir Krunic

et al.

Nature, Journal Year: 2020, Volume and Issue: 584(7821), P. 415 - 419

Published: July 8, 2020

Language: Английский

Citations

112