26 results match your criteria: "Cancer Research Center CRC[Affiliation]"

Protocol for transducing human primary epithelial prostate cells and patient-derived organoids with high efficiency.

STAR Protoc

September 2024

Department of Molecular Medicine, Université Laval, Quebec City, QC, Canada; Endocrinology and Nephrology Division, CHU de Québec-Université Laval Research Center (CRCHUQ-UL), Quebec City, QC, Canada; Cancer Research Center (CRC) of Université Laval, Quebec City, QC, Canada. Electronic address:

Patient-derived organoids (PDOs) are now used to study many diseases, including prostate cancer. Here, we present a protocol for the transduction of human epithelial prostate cells and PDOs. We describe the steps for producing lentiviruses and transducing PDOs with high efficiency to obtain either overexpression or knockdown of specific genes.

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  • Estrogens might help protect the gut barrier and lower immune activation in women with HIV, especially during the menopausal transition.
  • A study measured gut-related biomarkers in 77 women, with 43 having HIV, over approximately 13 years to understand the effects of menopause and estradiol levels.
  • Results showed that HIV-positive women had increased immune activation during menopause, with a decrease in activation after the transition, suggesting that lower estrogen levels could contribute to this heightened immune response.
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  • Scientists studied the estrogen receptor α (ERα) in prostate cancer and found it only appears in about half of the patients' tumors.
  • When ERα is present, it can affect how the cancer grows and spreads, and is linked to patients' chances of survival.
  • The research suggests that targeting ERα could be a new way to treat prostate cancer by changing how cancer cells use energy.
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  • * The research found that higher levels of pollutants like ethylbenzene, o-xylene, and benzene were linked to increased odds of developing advanced stages of BC, particularly in women from lower socioeconomic backgrounds.
  • * Notably, the study suggests that exposure to multiple air pollutants significantly increases the likelihood of stage I BC in women under 50, indicating a concerning link between air quality and breast cancer severity at diagnosis.
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The one with the rumour: COVID-19-related conversations on Pakistani Twitter.

Public Health

December 2023

Hormone Lab, Lahore, Pakistan.

Objectives: The COVID-19 pandemic has been a massive crisis exacerbated by the spread of misinformation on social media. Twitter is a highly popular microblogging platform in Pakistan, and the large population there lacks digital literacy, making them vulnerable to various forms of online and digital propaganda. This study aims to analyse the content of COVID-19-related tweets from Pakistan.

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  • The study examined the relationship between sex hormones, gut microbiome, and cardiovascular risk in postmenopausal women, particularly those with HIV.
  • Researchers measured 15 sex hormones and analyzed stool samples from 197 women, highlighting associations between hormone levels and microbiome diversity and composition.
  • Findings suggest that certain hormones, especially estrogens, may enhance microbiome diversity and are linked to lower risks of carotid artery plaque, indicating the gut microbiome's potential role in cardiovascular protection related to estrogen.
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Circulating adrenal 11-oxygenated androgens are associated with clinical outcome in endometrial cancer.

Front Endocrinol (Lausanne)

June 2023

Centre Hospitalier Universitaire de Québec (CHU de Québec) Research Center, Cancer Research Center (CRC) of Université Laval and Faculty of Pharmacy, Université Laval, Québec, QC, Canada.

Context: Recent evidence support that androgens play an important role in the etiology of endometrial cancer (EC). Adrenal-derived 11-oxygenated androgens are highly potent agonists of the androgen receptor (AR), comparable to testosterone (T) and dihydrotestosterone (DHT) that have not been studied in the context of EC.

Methodology: We studied a cohort of 272 newly diagnosed postmenopausal EC cases undergoing surgical treatment.

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The aim of this study was to assess prevalence of anti-thyroid peroxidase (anti-TPO) antibody and thyroid hormones in Iranian female breast cancer patients, compare them to a control population, and investigate their association with prognostic factors. In this case-control study, breast cancer patients were selected from a surgery clinic in a tertiary hospital and control group participants were enrolled from those who had visited for mammography screening. Participants with any history of thyroid disease, or thyroid related medication were excluded from both groups.

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Association between human leukocyte antigen (HLA) and end-stage renal disease (ESRD): a meta-analysis.

PeerJ

February 2023

Cancer Biology Lab, Institute of Microbiology and Molecular Genetics, University of the Punjab, Lahore, Pakistan.

Objectives: We recently studied the association between various human leukocyte antigen (HLA) alleles and end-stage renal disease (ESRD). According to our analysis, HLA-B*50 and HLA-DQA1*3 alleles were positively associated with ESRD, while B*40, DRB1*12, DRB1*13, and DQA1*6 alleles were negatively associated with ESRD. However, a single case-control study does not have enough statistical power to evaluate the possible impact of genetic polymorphism on any disease.

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The Glycosyltransferase Pathway: An Integrated Analysis of the Cell Metabolome.

Metabolites

October 2022

Centre Hospitalier Universitaire de Québec Research Center-Université Laval, Faculty of Pharmacy, and Université Laval Cancer Research Center (CRC), R4720, 2705 Blvd Laurier, Québec, QC G1V 4G2, Canada.

Nucleotide sugar-dependent glycosyltransferases (UGTs) are critical to the homeostasis of endogenous metabolites and the detoxification of xenobiotics. Their impact on the cell metabolome remains unknown. Cellular metabolic changes resulting from human UGT expression were profiled by untargeted metabolomics.

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Breast cancer (BC) remains a major public health issue worldwide [...

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Too complex to fail? Targeting fatty acid metabolism for cancer therapy.

Prog Lipid Res

January 2022

Cancer Biology Lab, Institute of Microbiology and Molecular Genetics, University of the Punjab, Lahore, Pakistan; Cancer Research Center (CRC), University of the Punjab, Lahore, Pakistan. Electronic address:

Given the central role of fatty acids in cancer pathophysiology, the exploitation of fatty acid metabolism as a potential antineoplastic therapy has gained much attention. Several natural and synthetic compounds targeting fatty acid metabolism were hitherto identified, and their effectiveness against cancer cell proliferation and survival was determined. This review will discuss the most clinically viable inhibitors or drugs targeting various proteins or enzymes mapped on nine interconnected fatty acid metabolism-related processes.

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Impacts of endocrine-disrupting chemicals on prostate function and cancer.

Environ Res

March 2022

Department of Molecular Medicine, Faculty of Medicine, Laval University, Québec, Canada; Endocrinology - Nephrology Research Axis, CHU de Québec-Université Laval Research Center, Québec, Canada; Cancer Research Center (CRC), Laval University, Québec, Canada. Electronic address:

Article Synopsis
  • Endocrine-disrupting chemicals (EDCs) are linked to sex-steroid receptors, particularly estrogen and androgen receptors, and can influence hormonal pathways in various ways.
  • The article reviews the connection between prostate cancer and four EDC families: bisphenols, phthalates, phytoestrogens, and mycoestrogens, using both lab models and real-life studies to examine how EDCs affect prostate biology.
  • To improve study reliability, the article suggests guidelines such as determining receptor expression in models, using controlled pharmacological compounds, and employing specific concentration ranges of EDCs to clearly understand their role in prostate cancer.
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Background: Despite our awareness of the significant effect of Social Determinant of Health (SDoH) such as Socio Economic Status (SES), income and education on breast cancer survival, there was a serious lack of information about the effect of different level of these factors on breast cancer survival. So far, no meta-analysis has been conducted with this aim, but this gap was addressed by this meta-analysis.

Methods: Main electronic databases such as PubMed, Web of Science, and Scopus were investigated up to January 2019.

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  • The FTO gene might be linked to an increased risk of breast cancer, particularly in patients with estrogen receptor positive tumors.
  • A comprehensive review of existing studies was conducted using various databases to assess the relationship between FTO gene polymorphisms and breast cancer.
  • The findings suggest that estrogen could enhance breast cancer cell growth by affecting FTO gene expression and related cellular signaling pathways, indicating a need for further research on these interactions.
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Introduction: This study aims to estimate the Socio-Economic Status (SES) inequality on the metastasis, recurrence, stage and grade in Breast Cancer (BC).

Methods: This retrospective cohort study conducted on 411 BC patients in Arak, Iran. Asset-based questionnaire used to estimate the household SES.

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  • Recent studies indicate that the FTO gene influences body weight by affecting the expression of the IRX3 gene, which is linked to obesity.
  • The review analyzed various articles from 2000 to 2019, focusing on factors like polymorphism, BMI, and the IRX3 gene across multiple scientific databases.
  • Findings suggest mixed results regarding IRX3's role in obesity, with some research showing that increased expression correlates with higher body weight while others indicate the opposite; more research is needed to clarify these relationships.
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Metastasis in Colorectal Cancer (CRC) is important because of the costs imposed on the individual. Self-Rated Health (SRH) can be useful for preventing cancer. Considering the role of Socio-Economic Status (SES) in CRC, our study was conducted to evaluate the relationship between demographic, SES, SRH, and metastasis of this type of cancer in Markazi province, Iran.

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Aim: We investigate the evaluation of socio-economic status (SES) inequality on self-rated health (SRH) at women with breast cancer.

Study Design: Cross-sectional study.

Methods: The current study conducted on all 270 breast cancer patients that were admitted to one of the hospitals of Arak University Medical Sciences (Arak, Iran from April to July 2018) by census (using non-random sampling (accessible sampling).

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NADPH oxidase (NOX) enzymes are one of the major superoxide-generating systems in cells. NOX-generated superoxide has been suggested to promote insulin resistance in the liver. However, the role of NOX enzymes in mediating metabolic dysfunction in other insulin target tissues remains unclear.

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The role of environmental factors and genetic susceptibility in the development of colon cancer (CC) has been already proven, but the role of gene polymorphisms in modifying the risk of environmental factors such as nutritional factors is still unknown. This study aimed to investigate the effect of polymorphisms of involved genes in the association between red meat consumption and the development of CC. The present review was carried out using keywords such as polymorphism and/or protein and/or red meat and/or processed meat and/or colon cancer.

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FTO Gene Affects Obesity and Breast Cancer Through Similar Mechanisms: A New Insight into the Molecular Therapeutic Targets.

Nutr Cancer

January 2018

d National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology , Shahid Beheshti University of Medical Sciences, Tehran , Iran.

Objectives: This review focused on the possible mediatory role of the FTO in the association between obesity and breast cancer.

Method: All articles published in English from June 1990 to January 2017 were studied. The search terms used were FTO gene, FTO polymorphism, breast cancer, and obesity.

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  • The study investigated survival rates of esophageal squamous cell carcinoma (SCC) patients in relation to various factors, including age, gender, and specific biomarkers.
  • Medical records from 2001 to 2005 were analyzed, revealing higher survival rates for women and those with well-differentiated tumors, while no significant link was found between p53 expression and other prognostic factors.
  • The findings suggest that p53 and cyclin D1 expression are not reliable survival predictors, indicating the need for further research with larger sample sizes.
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Breast cancer is the most common cancer in females in Iran and in most of the developed countries. Studies have shown that having chronic stress in individuals predisposes several types of cancer including breast cancer. Research results showed that spiritual factors correlate with indices of physical consequences such as heart disease, cancer, and death, so do psychiatric conditions and changes in receptor gene expression in depression, anxiety, and social dysfunction.

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Background: During the last two decades, there have been spiritual/religious interventions in cancer patients to prevent or treat a range of physical problems, including managing chronic pain, coping with the disease, boosting hope and mental health. Although societies are of different faiths and belief systems, what they all share is spirituality.

Objectives: Upon this we put forward the hypothesis of changes in gene receptor expressions as a result of spiritual intervention for the first time in the world.

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