Upregulation of GALNT7 in prostate cancer modifies O-glycosylation and promotes tumour growth.

Prostate cancer is the most common cancer in men and it is estimated that over 350,000 men worldwide die of prostate cancer every year. There remains an unmet clinical need to improve how clinically significant prostate cancer is diagnosed and develop new treatments for advanced disease. Aberrant glycosylation is a hallmark of cancer implicated in tumour growth, metastasis, and immune evasion. One of the key drivers of aberrant glycosylation is the dysregulated expression of glycosylation enzymes within the cancer cell. Here, we demonstrate using multiple independent clinical cohorts that the glycosyltransferase enzyme GALNT7 is upregulated in prostate cancer tissue. We show GALNT7 can identify men with prostate cancer, using urine and blood samples, with improved diagnostic accuracy than serum PSA alone. We also show that GALNT7 levels remain high in progression to castrate-resistant disease, and using in vitro and in vivo models, reveal that GALNT7 promotes prostate tumour growth. Mechanistically, GALNT7 can modify O-glycosylation in prostate cancer cells and correlates with cell cycle and immune signalling pathways. Our study provides a new biomarker to aid the diagnosis of clinically significant disease and cements GALNT7-mediated O-glycosylation as an important driver of prostate cancer progression.

Influence of internet, mobile phone use, and sociodemographic factors on women's knowledge and attitude towards contraception in Indonesia.

OBJECTIVE: Rapid population growth has been a problem in Indonesia for several decades. One of the reasons for this phenomenon is limited knowledge of reproductive health and proper contraception. METHODS: . The use of mobile phones and the internet has made it easier to access health information. This study aimed to determine the influence of the internet, mobile phone use, and sociodemographic factors on Indonesian women's knowledge of and attitudes toward contraception. METHODS: The present study used secondary data from the 2017 Indonesian Health and Demographics Survey. Altogether, 49,627 women participated in this study. Descriptive statistics were performed, and bivariate analysis using the chisquared test was performed to measure the association between variables. RESULTS: Knowledge about the ovulation cycle and contraception was positively associated with mobile phone ownership, frequent internet use, higher wealth index, reading printed media, listening to the radio, watching the television, higher educational level, and older age. The use and intention of contraception were positively associated with lower wealth index, watching television at least once a week, primary-secondary educational level, rural residence, and older age. Thus, acquisition of knowledge does not necessarily translate into implementation of contraceptive. METHODS: , since there might be certain digital and social barriers. CONCLUSION: Access to the internet and mobile phones as well as certain sociodemographic factors have contributed to an increase in women's knowledge about contraception, but not necessarily in their knowledge regarding the use of contraception.

Evaluating knowledge retention and perceived benefits of medical webinar for professional development among Indonesian physicians.

PURPOSE: To assess knowledge retention of physicians after participating in a webinar series and its perceived benefits on daily practice and career development. METHODS: The webinar series comprised six separate webinars about daily practice. Online questionnaires were sent to all participating physicians via email 3 months after the webinars. The questionnaire assessed knowledge retention through the difference between initial and follow-up post-test as well as the webinar series' benefits on daily practice and career development. Participants' demographic information, including their age, gender, education, year of graduation, and work details, were collected to compare outcomes between demographic groups. RESULTS: A total of 689 responses were gathered, and 622 were analyzed. At follow-up, the median knowledge score was significantly lower than the initial median knowledge score (Z=-6.973, p<0.001). Participants' perception of the webinar series' benefits on daily practice and career development was very positive. A significant weak negative correlation was found between age and knowledge score at follow-up (rs=-0.157, p<0.001). Physicians who graduated more recently and worked for less than 3 years scored significantly higher on knowledge tests at follow-up. Meanwhile, perception score towards webinar series' benefits on daily practice was significantly higher among physicians with more extended work history. Male physicians scored significantly higher on perception score towards webinar series' benefits on career development. CONCLUSION: Online continuing medical education programs like webinars can encourage physicians to maintain their competence, but further research on improving knowledge retention over time is necessary. Overall, physicians perceived webinars to be beneficial for their professional development.

Cross-sectional study on knowledge, attitude and practice towards thalassaemia among Indonesian youth.

INTRODUCTION: Thalassaemia is an inherited blood disorder, for which definitive treatments remain largely inaccessible. The recommended approach to reduce the disease burden is by prevention through screening. Currently, the implementation of thalassaemia preventive measures is poorly regulated in Indonesia. Thalassaemia prevention and education are best targeted to the youth, but information on their awareness towards thalassaemia is limited. This study aims to investigate the knowledge, attitude and practice (KAP) towards thalassaemia among Indonesian youth. METHODS: This observational study took place between January and May 2021. An online questionnaire was disseminated to Indonesian youth aged 15-24. Eligible respondents included carriers, unaffected individuals and individuals with unknown carrier status. The questionnaire comprised 28 questions to assess KAP. A cut-off of 75% was used to categorise participant's KAP into poor or negative and good or positive. Descriptive statistics, χ2 test, logistic regression and Pearson correlation were performed for data analysis. RESULTS: A total of 906 responses were gathered, and 878 were analysed. Most respondents had poor knowledge (62.1%), positive attitude (83.3%) and poor practice (54.4%) towards thalassaemia. The results implied that respondents had limited understanding regarding the types of thalassaemia and the difference between asymptomatic carriers and individuals without the thalassaemia trait. Many (82.6%) believed they were not carrying thalassaemia trait despite the fact that most (95.7%) never got tested. Age, education, gender, residence and family income were key factors that correlated with or predicted the youth's KAP towards thalassaemia. Older respondents and women were more likely to have good KAP. CONCLUSION: Thalassaemia screening targeted to the youth is urgently needed, and future interventions must consider sociodemographic factors that may affect how they perceive the disease. Social media appeals to the youth as an important source of information, but school, parents and health professionals should also be involved in delivering education about thalassaemia.

Assessing webinar outcomes for health professionals: a perspective from Indonesia during coronavirus disease 2019 pandemic.

PURPOSE: With the ongoing coronavirus disease 2019 (COVID-19) pandemic, health institutions and hospitals are increasingly relying on e-learning for continuing education. However, in many countries there is still limited data on the effectiveness of online learning particularly in the healthcare field. This study aims to evaluate whether webinar as a form of online educational intervention is satisfactory and effective for the continuing education of health professionals in Indonesia. METHODS: We collected participants' demographic information including health profession, place of work, work unit, and year of graduation. There were six independent webinars included in this study. Webinar outcomes included satisfaction and learning scores. Regarding satisfaction, participants were told to complete a satisfaction survey and asked whether they would recommend the webinar to their colleagues. Regarding learning, information on their mean pre-test and post-test scores was collected. RESULTS: A total of 3,607 health professionals were enrolled, with the highest participation in webinars about emergency cases and COVID-19 management. The response towards satisfaction was overwhelmingly positive. In all six webinars, post-test scores were statistically significantly higher than pre-test scores. Recently graduated physicians scored higher in learning than senior physicians, while place of work and work unit did not significantly affect the scores. CONCLUSION: The use of webinar for health professionals training in Indonesia was well-received amid the ongoing pandemic. In the future, health institutions and teaching hospitals should optimize the implementation of webinar training as it is associated with low cost, high flexibility, and less time commuting.

Evaluating the Relationship Between Online Learning Environment and Medical Students' Wellbeing During COVID-19 Pandemic.

BACKGROUND: The coronavirus disease 2019 (COVID-19) pandemic has been found to negatively affect medical students' wellbeing. This finding may be related to how medical education is being conducted at present, with online learning replacing face-to-face teaching in many countries. This cross-sectional study aims to assess how the online learning environment is connected to medical students' wellbeing. METHODS: A self-administered online questionnaire was distributed to undergraduate medical students at Universitas Indonesia. The study was conducted from September 2020 to February 2021. The questionnaire included a modified version of the Online Learning Environment Scale (OLES) and the Positive Emotion, Engagement, Relationships, Meaning and Accomplishment (PERMA) profiler. The OLES was used to evaluate students' perceptions of the online learning environment, whereas the PERMA Profiler was used to evaluate students' wellbeing. We validated the questionnaire before distribution. The content validity index was 1.0, with internal consistency coefficients of 0.87 and 0.89, respectively. Regression analyses were performed to evaluate the relationship between OLES and PERMA scores. RESULTS: The questionnaire was completed by 274 undergraduate medical students. Students reported moderate to high degrees of positive perception towards online learning, high levels of positive emotions and moderate levels of negative emotions. Statistically significant differences were found across groups based on students' gender, year of study and academic programme. Almost all aspects of the online learning environment were significantly predictive of students' wellbeing, with personal relevance and evaluation and assessment being the two most important predictors (R 2 = 0.201; P < 0.001). CONCLUSION: Medical students generally enjoyed online learning, although some challenges were presented. The online learning environment was positively associated with students' wellbeing; however, some students expressed negative emotions including loneliness, anxiety, anger and sadness.

Regulation and Signaling of TGF-ß Autoinduction.

Cell signaling is a vital part of biological life. It helps coordinating various cellular processes including cell survival, cell growth, cell death, and cell interaction with the microenvironment and other cells. In general, cell signaling involves the attachment of signaling molecules known as ligands to specific receptors on cell surface, which then activate downstream events that dictate the cell's response. One of the most studied ligands is transforming growth factor-beta (TGF-ß). TGF-ß signaling is mainly mediated by suppressor of mothers against decapentaplegic (Smad) proteins, but it also interacts with other pathways such as the Ras and mitogen-activated protein kinase (MAPK) signaling pathways. Furthermore, TGF-ß can have a dual role depending on the cellular and microenvironmental context, in which it can act as either a growth promoter or a growth inhibitor. It has been known that TGF-ß can self-induce its ligand production, thereby prolonging and amplifying its effect on cells and their microenvironment. The aim of this review is to discuss the regulation and signaling of TGF-ß autoinduction, which still remain to be elucidated. Several factors have been found to facilitate TGF-ß autoinduction, which include the activator protein-1 (AP1) complex, Smad3-dependent signaling, and non-Smad signaling pathways. On the other hand, the LIM (Lin11, Isl-1 and Mec-3) domain only 7 (LMO7) protein can suppress TGF-ß autoinduction by interfering with the activities of AP-1 and Smad3. Since TGF-ß autoinduction is implicated in various pathological conditions, better understanding of its regulation and signaling can provide new directions for therapy.

Gene Expression of Molecules Regulating Apoptotic Pathways in Glioblastoma Multiforme Treated with Umbilical Cord Stem Cell Conditioned Medium.

BACKGROUND: Glioblastoma multiforme (GBM) is the most malignant primary brain tumour and there is no definite cure. It has been suggested that there are significant interactions among mesenchymal stem cells (MSCs), their released factors and tumour cells that ultimately determine GBM's growth pattern. This study aims to analyse the expression of molecules involved in GBM cell apoptotic pathways following treatment with the MSC secretome. METHODS: A conditioned medium of umbilical cord-derived MSCs (UCMSC-CM) was generated by culturing the cells on serum-free αMEM for 24 h. Following this, human GBM T98G cells were treated with UCMSC-CM for 24 h. Quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR) was then performed to measure the mRNA expression of survivin, caspase-9, TNF-related apoptosis-inducing ligand (TRAIL), DR4 and DcR1. RESULTS: mRNA expression of caspase-9 in CM-treated T98G cells increased 1.6-fold (P = 0.017), whereas mRNA expression of survivin increased 3.5-fold (P = 0.002). On the other hand, TRAIL protein expression was upregulated (1.2-fold), whereas mRNA expression was downregulated (0.4-fold), in CM-treated cells. Moreover, there was an increase in the mRNA expression of both DR4 (3.5-fold) and DcR1 (1,368.5-fold) in CM-treated cells. CONCLUSION: The UCMSC-CM was able to regulate the expression of molecules involved in GBM cell apoptotic pathways. However, the expression of anti-apoptotic molecules was more upregulated than that of pro-apoptotic molecules.