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Abdullah N, Blin JA, Kamalul Arifin AS, Abd Jalal N, Ismail N, Mohd Yusof NA, Abdullah MS, Husin NF, Dauni A, Kamaruddin MA, Mohammed Nawi A, Ahmad N, Hassan MR, Jamal R. Cardiovascular risk prediction with cardio-ankle vascular index in the malaysian cohort study. Curr Probl Cardiol 2024; 49:102192. [PMID: 37952789 DOI: 10.1016/j.cpcardiol.2023.102192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 11/09/2023] [Indexed: 11/14/2023]
Abstract
The cardio-ankle vascular index (CAVI) is an important parameter assessing arterial function. It reflects arterial stiffness from the origin of the aorta to the ankle, and the algorithm is blood pressure independent. Recent data have suggested that a high CAVI score can predict future cardiovascular disease (CVD) events; however, to date, no study has been done in Malaysia. We conducted a prospective study on 2,168 The Malaysian Cohort (TMC) CVD-free participants (971 men and 1,197 women; mean age 51.64 ± 8.38 years old) recruited from November 2011 to March 2012. This participants were followed-up until the emergence of CVD incidence and mortality (endpoint between May to September 2019; duration of 7.5 years). Eligible participants were assessed based on CAVI baseline measurement which categorised them into low (CAVI <9.0) and high (CAVI ≥ 9.0) scores. The CVD events in the group with high CAVI (6.5 %) were significantly higher than in the low CAVI (2.6 %) group (p < 0.05). CAVI with cut-off point ≥ 9.0 was a significant independent predictor for CVD event even after adjustment for male, ethnicity, age, and intermediate atherogenic index of plasma (AIP). Those who have higher CAVI have 78 % significantly higher risk of developing CVD compared to those with the low CAVI (adjusted OR [95 % CI] = 1.78 [1.04 - 3.05], p =0.035). In addition, the participants with higher CAVI have significantly lower survival probability than those who have lower CAVI values. Thus, this study indicated that the CAVI can predict CVD event independently among the TMC participants.
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Affiliation(s)
| | - Joan Anak Blin
- UKM Medical Molecular Biology Institute (UMBI), Kuala Lumpur 56000, Malaysia.
| | | | - Nazihah Abd Jalal
- UKM Medical Molecular Biology Institute (UMBI), Kuala Lumpur 56000, Malaysia.
| | - Norliza Ismail
- UKM Medical Molecular Biology Institute (UMBI), Kuala Lumpur 56000, Malaysia.
| | | | | | - Nurul Faeizah Husin
- UKM Medical Molecular Biology Institute (UMBI), Kuala Lumpur 56000, Malaysia.
| | - Andri Dauni
- UKM Medical Molecular Biology Institute (UMBI), Kuala Lumpur 56000, Malaysia.
| | | | - Azmawati Mohammed Nawi
- Department of Public Health Medicine, Faculty of Medicine, UKM, Kuala Lumpur 56000, Malaysia.
| | - Norfazilah Ahmad
- Department of Public Health Medicine, Faculty of Medicine, UKM, Kuala Lumpur 56000, Malaysia.
| | - Mohd Rohaizat Hassan
- Department of Public Health Medicine, Faculty of Medicine, UKM, Kuala Lumpur 56000, Malaysia.
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Kuala Lumpur 56000, Malaysia.
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Muhammad Azami NA, Abdullah N, Kamalul Ariffin AS, Abdullah MS, Dauni A, Kamaruddin MA, Jamal R. Hepatitis B and influenza vaccination coverage in healthcare workers, the elderly, and patients with diabetes in Malaysia. Hum Vaccin Immunother 2023; 19:2170660. [PMID: 36728847 PMCID: PMC10012949 DOI: 10.1080/21645515.2023.2170660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Adult immunization remains to be a neglected issue in developing countries including Malaysia. This nationwide study determined the vaccination coverage of hepatitis B and influenza among Malaysia's healthcare workers (HCWs), the elderly (aged 60 y and above) and patients with diabetes, who are the participants of The Malaysia Cohort Program. The participants were categorized based on their occupation, age and medical history. Self-reported questionnaire was used to assess the participant's hepatitis B and influenza vaccination status. A Chi-square test and logistic regression analyses were performed to determine the risk factors associated with vaccination behavior. The hepatitis B vaccination coverage for healthcare workers, elderly, and patients with diabetes were 34.6%, 10.1% and 9.8%, respectively. The influenza vaccination coverage rates for healthcare workers, the elderly and patients with diabetes were 26.3%, 5.5% and 6.4%, respectively. The Chinese were more likely to be vaccinated against hepatitis B, while Malay was more likely to be vaccinated against influenza. Individuals with higher education and living in urban areas were more likely vaccinated than those with low education levels and who lived in rural areas. The low vaccination coverage for healthcare workers was alarming because hepatitis B and influenza were subsidized for the healthcare workers. The hepatitis B and influenza vaccination coverage among healthcare workers, elderly and patients with diabetes in Malaysia were low. Specific interventions such as educational and awareness programs should be conducted to increase the vaccination rate among adults, especially those at high risk.
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Affiliation(s)
| | - Noraidatulakma Abdullah
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | | | - Mohd Shaharom Abdullah
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Andri Dauni
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Mohd Arman Kamaruddin
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Carter JL, Abdullah N, Bragg F, Murad NAA, Taylor H, Fong CS, Lacey B, Sherliker P, Karpe F, Mustafa N, Lewington S, Jamal R. Body composition and risk factors for cardiovascular disease in global multi-ethnic populations. Int J Obes (Lond) 2023; 47:855-864. [PMID: 37460680 PMCID: PMC10439008 DOI: 10.1038/s41366-023-01339-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 06/21/2023] [Accepted: 07/04/2023] [Indexed: 08/20/2023]
Abstract
BACKGROUND No large-scale studies have compared associations between body composition and cardiovascular risk factors across multi-ethnic populations. METHODS Population-based surveys included 30,721 Malay, 10,865 Indian and 25,296 Chinese adults from The Malaysian Cohort, and 413,737 White adults from UK Biobank. Sex-specific linear regression models estimated associations of anthropometry and body composition (body mass index [BMI], waist circumference [WC], fat mass, appendicular lean mass) with systolic blood pressure (SBP), low-density lipoprotein cholesterol (LDL-C), triglycerides and HbA1c. RESULTS Compared to Malay and Indian participants, Chinese adults had lower BMI and fat mass while White participants were taller with more appendicular lean mass. For BMI and fat mass, positive associations with SBP and HbA1c were strongest among the Chinese and Malay and weaker in White participants. Associations with triglycerides were considerably weaker in those of Indian ethnicity (eg 0.09 [0.02] mmol/L per 5 kg/m2 BMI in men, vs 0.38 [0.02] in Chinese). For appendicular lean mass, there were weak associations among men; but stronger positive associations with SBP, triglycerides, and HbA1c, and inverse associations with LDL-C, among Malay and Indian women. Associations between WC and risk factors were generally strongest in Chinese and weakest in Indian ethnicities, although this pattern was reversed for HbA1c. CONCLUSION There were distinct patterns of adiposity and body composition and cardiovascular risk factors across ethnic groups. We need to better understand the mechanisms relating body composition with cardiovascular risk to attenuate the increasing global burden of obesity-related disease.
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Affiliation(s)
- Jennifer L Carter
- Clinical Trial Service Unit and Epidemiological Studies, Nuffield Department of Population Health, University of Oxford, Richard Doll Building, Old Road Campus, Oxford, OX3 7LF, UK.
| | - Noraidatulakma Abdullah
- UKM Medical Molecular Biology Institute (UMBI), Jalan Yaacob Latiff, 56000 Cheras, Kuala Lumpur, Malaysia
| | - Fiona Bragg
- Clinical Trial Service Unit and Epidemiological Studies, Nuffield Department of Population Health, University of Oxford, Richard Doll Building, Old Road Campus, Oxford, OX3 7LF, UK
- Medical Research Council, Population Health Research Unit, University of Oxford, Oxford, UK
| | - Nor Azian Abdul Murad
- UKM Medical Molecular Biology Institute (UMBI), Jalan Yaacob Latiff, 56000 Cheras, Kuala Lumpur, Malaysia
| | - Hannah Taylor
- Clinical Trial Service Unit and Epidemiological Studies, Nuffield Department of Population Health, University of Oxford, Richard Doll Building, Old Road Campus, Oxford, OX3 7LF, UK
| | - Chin Siok Fong
- UKM Medical Molecular Biology Institute (UMBI), Jalan Yaacob Latiff, 56000 Cheras, Kuala Lumpur, Malaysia
| | - Benjamin Lacey
- Clinical Trial Service Unit and Epidemiological Studies, Nuffield Department of Population Health, University of Oxford, Richard Doll Building, Old Road Campus, Oxford, OX3 7LF, UK
| | - Paul Sherliker
- Clinical Trial Service Unit and Epidemiological Studies, Nuffield Department of Population Health, University of Oxford, Richard Doll Building, Old Road Campus, Oxford, OX3 7LF, UK
| | - Fredrik Karpe
- Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Churchill Hospital, Headington, OX3 7LE, UK
| | - Norlaila Mustafa
- Department of Medicine, Faculty of Medicine, University Kebangsaan Malaysia, 56000 Cheras, Kuala Lumpur, Malaysia
| | - Sarah Lewington
- Clinical Trial Service Unit and Epidemiological Studies, Nuffield Department of Population Health, University of Oxford, Richard Doll Building, Old Road Campus, Oxford, OX3 7LF, UK
- UKM Medical Molecular Biology Institute (UMBI), Jalan Yaacob Latiff, 56000 Cheras, Kuala Lumpur, Malaysia
- Medical Research Council, Population Health Research Unit, University of Oxford, Oxford, UK
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Jalan Yaacob Latiff, 56000 Cheras, Kuala Lumpur, Malaysia
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Asad F, Naz S, Ali T, Gul Y, Jamal R, Shaheen Z, Tasadaq M, Nadeem A, Anwar N, Batool N, Bano S. Effect of natural and synthetic androgen hormone on sex reversal of Nile Tilapia (Oreochromis niloticus). BRAZ J BIOL 2023; 84:e272413. [PMID: 37255178 DOI: 10.1590/1519-6984.272413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 04/26/2023] [Indexed: 06/01/2023] Open
Abstract
The present study aimed to produce a monosex population of all male Nile tilapia (Oreochromis spp.) using 17α-methyl testosterone and common carp testes (as a source of natural androgen). Trial was conducted into two consecutive phases, the first was fry (4-5 days old)administration with negative control (without hormone) and positive control (with hormone) feed viz., MT1:60mg/kg, MT2:70mg/kg (17α-MT), carp testis CT1:70% and CT2:80% for 30 days to reverse the sex of male fish and the second phase was nursing the fingerlings for two months on control diet (32% Crude protein).Results revealed a significant growth rate (P<0.05) in the control group where final weight (4.8±0.34ab) and weight gained was recorded as 0.66±0.03ac. In proximate chemical composition of body meat, CT2 treatment showed maximum retention of crude protein, crude fat, and ash whereas dry matter showed maximum retention in MT2 and CT1 treatments. Morphological and histological examination revealed significant difference (p<0.05) in phenotypic males of Nile tilapia fed with the highest percent in MT-treated diet (MT2) of 95±0.58a while MT1, CT2 and CT1 had males of 85±6.0b, 70±5.0b and 65±6.5b, respectively. It was concluded that synthetic androgen (17αMT) was more effective for masculinization but natural androgen scan be an alternative method to produce male tilapia population in an environment-friendly manner as they are inexpensive, eco-friendly, and radially available. These results suggested that synthetic and natural androgen supplementation in the diet plays a significant role in improving growth performance and body composition.
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Affiliation(s)
- F Asad
- Government College University Faisalabad, Zoology Department, Faisalabad, Punjab, Pakistan
| | - S Naz
- Government College University Faisalabad, Zoology Department, Faisalabad, Punjab, Pakistan
| | - T Ali
- Government College University Faisalabad, Zoology Department, Faisalabad, Punjab, Pakistan
| | - Y Gul
- Government College Women University Faisalabad, Zoology Department, Faisalabad, Punjab, Pakistan
| | - R Jamal
- Government College University Faisalabad, Zoology Department, Faisalabad, Punjab, Pakistan
| | - Z Shaheen
- Government College University Faisalabad, Zoology Department, Faisalabad, Punjab, Pakistan
| | - M Tasadaq
- Government College University Faisalabad, Zoology Department, Faisalabad, Punjab, Pakistan
| | - A Nadeem
- Government College University Faisalabad, Zoology Department, Faisalabad, Punjab, Pakistan
| | - N Anwar
- Government College University Faisalabad, Zoology Department, Faisalabad, Punjab, Pakistan
| | - N Batool
- Government College University Faisalabad, Zoology Department, Faisalabad, Punjab, Pakistan
| | - S Bano
- Government College University Faisalabad, Zoology Department, Faisalabad, Punjab, Pakistan
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Abdullah N, Goh YX, Othman R, Ismail N, Jalal N, Wan Sallam WAF, Husin NF, Shafie AS, Awang A, Kamaruddin MA, Jamal R. Stability of glycated haemoglobin (HbA1c) measurements from whole blood samples kept at -196°C for seven to eight years in The Malaysian Cohort study. J Clin Lab Anal 2023:e24898. [PMID: 37243371 DOI: 10.1002/jcla.24898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 04/11/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
OBJECTIVE Glycated haemoglobin (HbA1c) is a standard indication for screening type 2 diabetes that also has been widely used in large-scale epidemiological studies. However, its long-term quality (in terms of reproducibility) stored in liquid nitrogen is still unknown. This study is aimed to evaluate the stability and reproducibility of HbA1c measurements from frozen whole blood samples kept at -196°C for more than 7 years. METHODS A total of 401 whole blood samples with a fresh HbA1c measurement were randomly selected from The Malaysian Cohort's (TMC) biobank. The HbA1c measurements of fresh and frozen (stored for 7-8 years) samples were assayed using different high-performance liquid chromatography (HPLC) systems. The HbA1c values of the fresh samples were then calculated and corrected according to the later system. The reproducibility of HbA1c measurements between calculated-fresh and frozen samples was assessed using a Passing-Bablok linear regression model. The Bland-Altman plot was then used to evaluate the concordance of HbA1c values. RESULTS The different HPLC systems highly correlated (r = 0.99) and agreed (ICC = 0.96) with each other. Furthermore, the HbA1c measurements for frozen samples strongly correlate with the corrected HbA1c values of the fresh samples (r = 0.875) with a mean difference of -0.02 (SD: -0.38 to 0.38). Although the mean difference is small, discrepancies were observed within the diabetic and non-diabetic samples. CONCLUSION These data demonstrate that the HbA1c measurements between fresh and frozen samples are highly correlated and reproducible.
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Affiliation(s)
- Noraidatulakma Abdullah
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Ying-Xian Goh
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Raihannah Othman
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Norliza Ismail
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nazihah Jalal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | | | - Nurul Faeizah Husin
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Ahmad Syafiq Shafie
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Afifah Awang
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Mohd Arman Kamaruddin
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Abdul Murad NA, Mohammad Noor Y, Mohd. Rani ZZ, Sulaiman SA, Chow YP, Abdullah N, Ahmad N, Ismail N, Abdul Jalal N, Kamaruddin MA, Saperi AA, Jamal R. Hypercholesterolemia in the Malaysian Cohort Participants: Genetic and Non-Genetic Risk Factors. Genes (Basel) 2023; 14:genes14030721. [PMID: 36980993 PMCID: PMC10048611 DOI: 10.3390/genes14030721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/28/2023] [Accepted: 03/07/2023] [Indexed: 03/18/2023] Open
Abstract
Hypercholesterolemia was prevalent in 44.9% of The Malaysian Cohort participants, of which 51% were Malay. This study aimed to identify the variants involved in hypercholesterolemia among Malays and to determine the association between genetic and non-genetic risk factors. This nested case–control study included 25 Malay participants with the highest low-density lipoprotein cholesterol (LDL-C, >4.9 mmol/L) and total cholesterol (TC, >7.5 mmol/L) and 25 participants with the lowest LDL-C/TC. Genomic DNA was extracted, and whole-exome sequencing was performed using the Ion ProtonTM system. All variants were annotated, filtered, and cross-referenced against publicly available databases. Forty-five selected variants were genotyped in 677 TMC Malay participants using the MassARRAY® System. The association between genetic and non-genetic risk factors was determined using logistic regression analysis. Age, fasting blood glucose, tobacco use, and family history of hyperlipidemia were significantly associated with hypercholesterolemia. Participants with the novel OSBPL7 (oxysterol-binding protein-like 7) c.651_652del variant had 17 times higher odds for hypercholesterolemia. Type 2 diabetes patients on medication and those with PCSK9 (proprotein convertase subtilisin/kexin type 9) rs151193009 had low odds for hypercholesterolemia. Genetic predisposition can interact with non-genetic factors to increase hypercholesterolemia risk in Malaysian Malays.
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Affiliation(s)
- Nor Azian Abdul Murad
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latiff, Cheras, Kuala Lumpur 56000, Malaysia
| | - Yusuf Mohammad Noor
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latiff, Cheras, Kuala Lumpur 56000, Malaysia
- Malaysian Genome Institute (MGI), Jalan Bangi, Bangi 43000, Malaysia
| | - Zam Zureena Mohd. Rani
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latiff, Cheras, Kuala Lumpur 56000, Malaysia
| | - Siti Aishah Sulaiman
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latiff, Cheras, Kuala Lumpur 56000, Malaysia
| | - Yock Ping Chow
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latiff, Cheras, Kuala Lumpur 56000, Malaysia
| | - Noraidatulakma Abdullah
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latiff, Cheras, Kuala Lumpur 56000, Malaysia
| | - Norfazilah Ahmad
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latiff, Cheras, Kuala Lumpur 56000, Malaysia
- Department of Community Health, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latiff, Cheras, Kuala Lumpur 56000, Malaysia
| | - Norliza Ismail
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latiff, Cheras, Kuala Lumpur 56000, Malaysia
| | - Nazihah Abdul Jalal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latiff, Cheras, Kuala Lumpur 56000, Malaysia
| | - Mohd. Arman Kamaruddin
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latiff, Cheras, Kuala Lumpur 56000, Malaysia
| | - Amalia Afzan Saperi
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latiff, Cheras, Kuala Lumpur 56000, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latiff, Cheras, Kuala Lumpur 56000, Malaysia
- Correspondence: ; Tel.: +60-3-9145-9000
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Abu N, Rus Bakarurraini NAA, Nasir SN, Ishak M, Baharuddin R, Jamal R, Ab Mutalib NS. Methylation Profile of Cancer Testis Antigens in Colorectal Cancer. Iran J Immunol 2023; 20:83-91. [PMID: 36932973 DOI: 10.22034/iji.2023.92600.2171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Abstract
Background: Cancer testis antigens (CTAs) are a class of immune-stimulating antigens often overexpressed in many types of cancers. The usage of the CTAs as immunotherapy targets have been widely investigated in different cancers including melanoma, hematological malignancies, and colorectal cancer. Studies have indicated that the epigenetic regulation of the CTAs such as the methylation status may affect the expression of the CTAs. However, the report on the methylation status of the CTAs is conflicting. The general methylation profile of the CTAs, especially in colorectal cancer, is still elusive. Objective: To determine the methylation profile of the selected CTAs in our colorectal cancer patients. Methods: A total of 54 pairs of colorectal cancer samples were subjected to DNA methylation profiling using the Infinium Human Methylation 450K bead chip. Results: We found that most of the CTAs were hypomethylated, and CCNA1 and TMEM108 genes were among the few CTAs that were hypermethylated. Conclusion: Overall, our brief report has managed to show the overall methylation profile in over the 200 CTAs in colorectal cancer and this could be used for further refining any immunotherapy targets.
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Affiliation(s)
- Nadiah Abu
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, 56000 Kuala Lumpur, Malaysia
| | | | - Siti Nurmi Nasir
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, 56000 Kuala Lumpur, Malaysia
| | - Muhiddin Ishak
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, 56000 Kuala Lumpur, Malaysia
| | - Rashidah Baharuddin
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, 56000 Kuala Lumpur, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, 56000 Kuala Lumpur, Malaysia
| | - Nurul Syakima Ab Mutalib
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, 56000 Kuala Lumpur, Malaysia
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Mohd Yunos RI, Ab Mutalib NS, Khoo JS, Saidin S, Ishak M, Syafruddin SE, Tieng FYF, Md Yusof NF, Abd Razak MR, Mahamad Nadzir N, Abu N, Rose IM, Sagap I, Mazlan L, Jamal R. Whole genome sequencing of Malaysian colorectal cancer patients reveals specific druggable somatic mutations. Front Mol Biosci 2023; 9:997747. [PMID: 36866106 PMCID: PMC9972984 DOI: 10.3389/fmolb.2022.997747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 09/20/2022] [Indexed: 02/16/2023] Open
Abstract
The incidences of colorectal cancer (CRC) are continuously increasing in some areas of the world, including Malaysia. In this study, we aimed to characterize the landscape of somatic mutations using the whole-genome sequencing approach and identify druggable somatic mutations specific to Malaysian patients. Whole-genome sequencing was performed on the genomic DNA obtained from 50 Malaysian CRC patients' tissues. We discovered the top significantly mutated genes were APC, TP53, KRAS, TCF7L2 and ACVR2A. Four novel, non-synonymous variants were identified in three genes, which were KDM4E, MUC16 and POTED. At least one druggable somatic alteration was identified in 88% of our patients. Among them were two frameshift mutations in RNF43 (G156fs and P192fs) predicted to have responsive effects against the Wnt pathway inhibitor. We found that the exogenous expression of this RNF43 mutation in CRC cells resulted in increased cell proliferation and sensitivity against LGK974 drug treatment and G1 cell cycle arrest. In conclusion, this study uncovered our local CRC patients' genomic landscape and druggable alterations. It also highlighted the role of specific RNF43 frameshift mutations, which unveil the potential of an alternative treatment targeting the Wnt/β-Catenin signalling pathway and could be beneficial, especially to Malaysian CRC patients.
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Affiliation(s)
| | - Nurul-Syakima Ab Mutalib
- UKM Medical Molecular Biology Institute (UMBI), Kuala Lumpur, Malaysia,*Correspondence: Nurul-Syakima Ab Mutalib, ; Rahman Jamal,
| | | | - Sazuita Saidin
- UKM Medical Molecular Biology Institute (UMBI), Kuala Lumpur, Malaysia
| | - Muhiddin Ishak
- UKM Medical Molecular Biology Institute (UMBI), Kuala Lumpur, Malaysia
| | | | | | | | | | | | - Nadiah Abu
- UKM Medical Molecular Biology Institute (UMBI), Kuala Lumpur, Malaysia
| | - Isa Md Rose
- Department of Pathology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Ismail Sagap
- Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Luqman Mazlan
- Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Kuala Lumpur, Malaysia,*Correspondence: Nurul-Syakima Ab Mutalib, ; Rahman Jamal,
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Azami NAM, Perera D, Thayan R, AbuBakar S, Sam IC, Salleh MZ, Isa MNM, Ab Mutalib NS, Aik WK, Suppiah J, Tan KK, Chan YF, Teh LK, Azzam G, Rasheed ZBM, Chan JCJ, Kamel KA, Tan JY, Khalilur Rahman O, Lim WF, Johari NA, Ishak M, Yunos RIM, Anasir MI, Wong JE, Fu JYL, Noorizhab MNF, Sapian IS, Mokhtar MFM, Md Shahri NAA, Ghafar K, Yusuf SNHM, Noor YM, Jamal R. SARS-CoV-2 genomic surveillance in Malaysia: displacement of B.1.617.2 with AY lineages as the dominant Delta variants and the introduction of Omicron during the fourth epidemic wave. Int J Infect Dis 2022; 125:216-226. [PMID: 36336246 PMCID: PMC9632236 DOI: 10.1016/j.ijid.2022.10.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 10/25/2022] [Accepted: 10/30/2022] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVES This study reported SARS-CoV-2 whole genome sequencing results from June 2021 to January 2022 from seven genome sequencing centers in Malaysia as part of the national surveillance program. METHODS COVID-19 samples that tested positive by reverse transcription polymerase chain reaction and with cycle threshold values <30 were obtained throughout Malaysia. Sequencing of SARS-CoV-2 complete genomes was performed using Illumina, Oxford Nanopore, or Ion Torrent platforms. A total of 6163 SARS-CoV-2 complete genome sequences were generated over the surveillance period. All sequences were submitted to the Global Initiative on Sharing All Influenza Data database. RESULTS From June 2021 to January 2022, Malaysia experienced the fourth wave of COVID-19 dominated by the Delta variant of concern, including the original B.1.617.2 lineage and descendant AY lineages. The B.1.617.2 lineage was identified as the early dominant circulating strain throughout the country but over time, was displaced by AY.59 and AY.79 lineages in Peninsular (west) Malaysia, and the AY.23 lineage in east Malaysia. In December 2021, pilgrims returning from Saudi Arabia facilitated the introduction and spread of the BA.1 lineage (Omicron variant of concern) in the country. CONCLUSION The changing trends of circulating SARS-CoV-2 lineages were identified, with differences observed between west and east Malaysia. This initiative highlighted the importance of leveraging research expertise in the country to facilitate pandemic response and preparedness.
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Affiliation(s)
- Nor Azila Muhammad Azami
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - David Perera
- Institute of Health and Community Medicine, Universiti Malaysia Sarawak, Sarawak, Malaysia
| | - Ravindran Thayan
- Virology Unit, Infectious Diseases Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health, Selangor, Malaysia
| | - Sazaly AbuBakar
- Tropical Infectious Diseases Research & Education Centre (TIDREC), Higher Institution Center of Excellence (HICoE), Universiti Malaya, Kuala Lumpur, Malaysia
| | - I-Ching Sam
- Department of Medical Microbiology, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia; Department of Medical Microbiology, University Malaya Medical Centre, Kuala Lumpur, Malaysia
| | - Mohd Zaki Salleh
- Integrative Pharmacogenomics Institute, Universiti Teknologi Mara (UiTM) Selangor Branch, Puncak Alam Campus, Selangor, Malaysia
| | - Mohd Noor Mat Isa
- Malaysia Genome and Vaccine Institute, National Institutes of Biotechnology Malaysia, Selangor, Malaysia
| | - Nurul Syakima Ab Mutalib
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Wong Kiing Aik
- Institute of Health and Community Medicine, Universiti Malaysia Sarawak, Sarawak, Malaysia
| | - Jeyanthi Suppiah
- Virology Unit, Infectious Diseases Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health, Selangor, Malaysia
| | - Kim-Kee Tan
- Tropical Infectious Diseases Research & Education Centre (TIDREC), Higher Institution Center of Excellence (HICoE), Universiti Malaya, Kuala Lumpur, Malaysia
| | - Yoke Fun Chan
- Department of Medical Microbiology, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Lay Kek Teh
- Integrative Pharmacogenomics Institute, Universiti Teknologi Mara (UiTM) Selangor Branch, Puncak Alam Campus, Selangor, Malaysia
| | - Ghows Azzam
- Malaysia Genome and Vaccine Institute, National Institutes of Biotechnology Malaysia, Selangor, Malaysia; School of Biological Sciences, Universiti Sains Malaysia, Penang, Malaysia
| | | | - Jonathan Chia Jui Chan
- Institute of Health and Community Medicine, Universiti Malaysia Sarawak, Sarawak, Malaysia
| | - Khayri Azizi Kamel
- Virology Unit, Infectious Diseases Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health, Selangor, Malaysia
| | - Jia-Yi Tan
- Tropical Infectious Diseases Research & Education Centre (TIDREC), Higher Institution Center of Excellence (HICoE), Universiti Malaya, Kuala Lumpur, Malaysia
| | - Omar Khalilur Rahman
- Department of Medical Microbiology, University Malaya Medical Centre, Kuala Lumpur, Malaysia
| | - Wai Feng Lim
- Integrative Pharmacogenomics Institute, Universiti Teknologi Mara (UiTM) Selangor Branch, Puncak Alam Campus, Selangor, Malaysia
| | - Nor Azfa Johari
- Malaysia Genome and Vaccine Institute, National Institutes of Biotechnology Malaysia, Selangor, Malaysia
| | - Muhiddin Ishak
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Ryia Illani Mohd Yunos
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Mohd Ishtiaq Anasir
- Virology Unit, Infectious Diseases Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health, Selangor, Malaysia
| | - Jo-Ern Wong
- Tropical Infectious Diseases Research & Education Centre (TIDREC), Higher Institution Center of Excellence (HICoE), Universiti Malaya, Kuala Lumpur, Malaysia
| | - Jolene Yin Ling Fu
- Department of Medical Microbiology, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Mohd Nur Fakhruzzaman Noorizhab
- Integrative Pharmacogenomics Institute, Universiti Teknologi Mara (UiTM) Selangor Branch, Puncak Alam Campus, Selangor, Malaysia
| | - Irni Suhayu Sapian
- Malaysia Genome and Vaccine Institute, National Institutes of Biotechnology Malaysia, Selangor, Malaysia
| | | | | | - Khairun Ghafar
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | | | - Yusuf Muhammad Noor
- Malaysia Genome and Vaccine Institute, National Institutes of Biotechnology Malaysia, Selangor, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia.
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10
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Miller W, Provencher D, Chu QC, Jonker D, Oza A, Batist G, Jamal R, Goel R, Hilton J, Spratlin J, Smith P, Darling I, Stille J, Fortier C, Mangat R, Polzer J. 743P A phase Ib dose escalation study of CD137 mAb agonist OC-001 as monotherapy in patients with advanced or metastatic cancer. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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11
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Azuwar MA, Muhammad NAN, Afiqah-Aleng N, Ab Mutalib NS, Md. Yusof NF, Mohd Yunos RI, Ishak M, Saidin S, Rose IM, Sagap I, Mazlan L, Mohd Azman ZA, Mazlan M, Ab Rahim S, Wan Ngah WZ, Nathan S, Hashim NAA, Mohamed-Hussein ZA, Jamal R. TCGA-My: A Systematic Repository for Systems Biology of Malaysian Colorectal Cancer. Life (Basel) 2022; 12:life12060772. [PMID: 35743803 PMCID: PMC9224961 DOI: 10.3390/life12060772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 05/14/2022] [Accepted: 05/18/2022] [Indexed: 11/25/2022] Open
Abstract
Colorectal cancer (CRC) ranks second among the most commonly occurring cancers in Malaysia, and unfortunately, its pathobiology remains unknown. CRC pathobiology can be understood in detail with the implementation of omics technology that is able to generate vast amounts of molecular data. The generation of omics data has introduced a new challenge for data organization. Therefore, a knowledge-based repository, namely TCGA-My, was developed to systematically store and organize CRC omics data for Malaysian patients. TCGA-My stores the genome and metabolome of Malaysian CRC patients. The genome and metabolome datasets were organized using a Python module, pandas. The variants and metabolites were first annotated with their biological information using gene ontologies (GOs) vocabulary. The TCGA-My relational database was then built using HeidiSQL PorTable 9.4.0.512, and Laravel was used to design the web interface. Currently, TCGA-My stores 1,517,841 variants, 23,695 genes, and 167,451 metabolites from the samples of 50 CRC patients. Data entries can be accessed via search and browse menus. TCGA-My aims to offer effective and systematic omics data management, allowing it to become the main resource for Malaysian CRC research, particularly in the context of biomarker identification for precision medicine.
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Affiliation(s)
- Mohd Amin Azuwar
- Center for Bioinformatics Research, Institute of Systems Biology (INBIOSIS), Universiti Kebangsaan Malaysia, UKM, Bangi 43600, Malaysia; (M.A.A.); (N.A.N.M.)
| | - Nor Azlan Nor Muhammad
- Center for Bioinformatics Research, Institute of Systems Biology (INBIOSIS), Universiti Kebangsaan Malaysia, UKM, Bangi 43600, Malaysia; (M.A.A.); (N.A.N.M.)
| | - Nor Afiqah-Aleng
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Nerus 21030, Malaysia;
| | - Nurul-Syakima Ab Mutalib
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia; (N.-S.A.M.); (N.F.M.Y.); (R.I.M.Y.); (M.I.); (S.S.); (R.J.)
| | - Najwa Farhah Md. Yusof
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia; (N.-S.A.M.); (N.F.M.Y.); (R.I.M.Y.); (M.I.); (S.S.); (R.J.)
| | - Ryia Illani Mohd Yunos
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia; (N.-S.A.M.); (N.F.M.Y.); (R.I.M.Y.); (M.I.); (S.S.); (R.J.)
| | - Muhiddin Ishak
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia; (N.-S.A.M.); (N.F.M.Y.); (R.I.M.Y.); (M.I.); (S.S.); (R.J.)
| | - Sazuita Saidin
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia; (N.-S.A.M.); (N.F.M.Y.); (R.I.M.Y.); (M.I.); (S.S.); (R.J.)
| | - Isa Mohamed Rose
- Department of Pathology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras, Kuala Lumpur 56000, Malaysia;
| | - Ismail Sagap
- Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras, Kuala Lumpur 56000, Malaysia; (I.S.); (L.M.); (Z.A.M.A.)
| | - Luqman Mazlan
- Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras, Kuala Lumpur 56000, Malaysia; (I.S.); (L.M.); (Z.A.M.A.)
| | - Zairul Azwan Mohd Azman
- Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras, Kuala Lumpur 56000, Malaysia; (I.S.); (L.M.); (Z.A.M.A.)
| | - Musalmah Mazlan
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Universiti Teknologi MARA, Campus Sungai Buloh, Sungai Buloh 47000, Malaysia; (M.M.); (S.A.R.); (N.A.A.H.)
| | - Sharaniza Ab Rahim
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Universiti Teknologi MARA, Campus Sungai Buloh, Sungai Buloh 47000, Malaysia; (M.M.); (S.A.R.); (N.A.A.H.)
| | - Wan Zurinah Wan Ngah
- Department of Biochemistry, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur 56000, Malaysia;
| | - Sheila Nathan
- Department of Biosciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, UKM, Bangi 43600, Malaysia;
| | - Nurul Azmir Amir Hashim
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Universiti Teknologi MARA, Campus Sungai Buloh, Sungai Buloh 47000, Malaysia; (M.M.); (S.A.R.); (N.A.A.H.)
| | - Zeti-Azura Mohamed-Hussein
- Center for Bioinformatics Research, Institute of Systems Biology (INBIOSIS), Universiti Kebangsaan Malaysia, UKM, Bangi 43600, Malaysia; (M.A.A.); (N.A.N.M.)
- Department of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, UKM, Bangi 43600, Malaysia
- Correspondence: ; Tel.: +60-3-8921-4546
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia; (N.-S.A.M.); (N.F.M.Y.); (R.I.M.Y.); (M.I.); (S.S.); (R.J.)
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12
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Abdul Rahman A, Wan Ngah WZ, Jamal R, Makpol S, Harun R, Mokhtar N. Inhibitory Mechanism of Combined Hydroxychavicol With Epigallocatechin-3-Gallate Against Glioma Cancer Cell Lines: A Transcriptomic Analysis. Front Pharmacol 2022; 13:844199. [PMID: 35392560 PMCID: PMC8982671 DOI: 10.3389/fphar.2022.844199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 02/14/2022] [Indexed: 11/13/2022] Open
Abstract
Emerging reports have shown therapeutic potential of hydroxychavicol (HC) and epigallocatechin-3-gallate (EGCG) against cancer cells, however high concentrations are required to achieve the anticancer activity. We reported the synergy of low combination doses of EGCG+HC in glioma cell lines 1321N1, SW1783, and LN18 by assessing the effects of EGCG+HC through functional assays. Using high throughput RNA sequencing, the molecular mechanisms of EGCG+HC against glioma cell lines were revealed. EGCG/HC alone inhibited the proliferation of glioma cell lines, with IC50 values ranging from 82 to 302 µg/ml and 75 to 119 µg/ml, respectively. Sub-effective concentrations of combined EGCG+HC enhanced the suppression of glioma cell growth, with SW1783 showing strong synergism with a combination index (CI) of 0.55 and LN18 showing a CI of 0.51. A moderate synergistic interaction of EGCG+HC was detected in 1321N1 cells, with a CI value of 0.88. Exposure of 1321N1, SW1783, and LN18 cells to EGCG+HC for 24 h induces cell death, with caspase-3 activation rates of 52%, 57%, and 9.4%, respectively. However, the dose for SW1783 is cytotoxic to normal cells, thus this dose was excluded from other tests. EGCG+HC induced cell cycle arrest at S phase and reduced 1321N1 and LN18 cell migration and invasion. Combined EGCG+HC amplified its anticancer effect by downregulating the axon guidance process and metabolic pathways, while simultaneously interfering with endoplasmic reticulum unfolded protein response pathway. Furthermore, EGCG+HC exerted its apoptotic effect through the alteration of mitochondrial genes such as MT-CO3 and MT-RNR2 in 1321N1 and LN18 cells respectively. EGCG+HC dynamically altered DYNLL1 alternative splicing expression in 1321N1 and DLD splicing expression in LN18 cell lines. Our work indicated the pleiotropic effects of EGCG+HC treatment, as well as particular target genes that might be investigated for future glioma cancer therapeutic development.
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Affiliation(s)
- Amirah Abdul Rahman
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Kampus Sungai Buloh, Universiti Teknologi MARA, Cawangan Selangor, Sungai Buloh, Malaysia.,UKM Medical Centre, UKM Medical Molecular Biology Institute (UMBI), Kuala Lumpur, Malaysia
| | - Wan Zurinah Wan Ngah
- UKM Medical Centre, UKM Medical Molecular Biology Institute (UMBI), Kuala Lumpur, Malaysia.,Department of Biochemistry, Faculty of Medicine, UKM Medical Centre, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Rahman Jamal
- UKM Medical Centre, UKM Medical Molecular Biology Institute (UMBI), Kuala Lumpur, Malaysia
| | - Suzana Makpol
- Department of Biochemistry, Faculty of Medicine, UKM Medical Centre, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Roslan Harun
- KPJ Ampang Specialist Hospital, Ampang, Malaysia
| | - Norfilza Mokhtar
- Department of Physiology, Faculty of Medicine, UKM Medical Centre, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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13
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Eysenbach G, Noh MFM, Ismail SR, van Daalen KR, Kamaruddin PSNM, Zulkiply SH, Azizul NH, Khalid NM, Ali A, Idris IM, Mei YS, Abdullah SR, Faridus N, Yusof NAM, Yusoff NNFM, Jamal R, Rahim AAA, Ghapar AKA, Radhakrishnan AK, Fong AYY, Ismail O, Krishinan S, Lee CY, Bang LH, Mageswaren E, Mahendran K, Amin NHM, Muthusamy G, Jin AOH, Ramli AW, Ross NT, Ruhani AI, Yahya M, Yusoff Y, Abidin SKZ, Amado L, Bolton T, Weston S, Crawte J, Ovenden N, Michielsen A, Monower MM, Mahiyuddin WRW, Wood A, Di Angelantonio E, Sulaiman NS, Danesh J, Butterworth AS. Investigating Genetic and Other Determinants of First-Onset Myocardial Infarction in Malaysia: Protocol for the Malaysian Acute Vascular Events Risk Study. JMIR Res Protoc 2022; 11:e31885. [PMID: 35142634 PMCID: PMC8874931 DOI: 10.2196/31885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 10/01/2021] [Accepted: 10/06/2021] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Although the burden of premature myocardial infarction (MI) is high in Malaysia, direct evidence on the determinants of MI in this multi-ethnic population remains sparse. OBJECTIVE The Malaysian Acute Vascular Events Risk (MAVERIK) study is a retrospective case-control study established to investigate the genomic, lipid-related, and other determinants of acute MI in Malaysia. In this paper, we report the study protocol and early results. METHODS By June 2019, we had enrolled approximately 2500 patients with their first MI and 2500 controls without cardiovascular disease, who were frequency-matched by age, sex, and ethnicity, from 17 hospitals in Malaysia. For each participant, serum and whole blood have been collected and stored. Clinical, demographic, and behavioral information has been obtained using a 200-item questionnaire. RESULTS Tobacco consumption, a history of diabetes, hypertension, markers of visceral adiposity, indicators of lower socioeconomic status, and a family history of coronary disease were more prevalent in cases than in controls. Adjusted (age and sex) logistic regression models for traditional risk factors indicated that current smoking (odds ratio [OR] 4.11, 95% CI 3.56-4.75; P<.001), previous smoking (OR 1.34, 95% CI 1.12-1.60; P=.001), a history of high blood pressure (OR 2.13, 95% CI 1.86-2.44; P<.001), a history of diabetes mellitus (OR 2.72, 95% CI 2.34-3.17; P<.001), a family history of coronary heart disease (OR 1.28, 95% CI 1.07-1.55; P=.009), and obesity (BMI >30 kg/m2; OR 1.19, 95% CI 1.05-1.34; P=.009) were associated with MI in age- and sex-adjusted models. CONCLUSIONS The MAVERIK study can serve as a useful platform to investigate genetic and other risk factors for MI in an understudied Southeast Asian population. It should help to hasten the discovery of disease-causing pathways and inform regionally appropriate strategies that optimize public health action. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) RR1-10.2196/31885.
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Affiliation(s)
| | - Mohd Fairulnizal Md Noh
- Institute for Medical Research, National Institute of Health, Ministry of Health, Kuala Lumpur, Malaysia
| | - Sophia Rasheeqa Ismail
- Institute for Medical Research, National Institute of Health, Ministry of Health, Kuala Lumpur, Malaysia
| | - Kim Robin van Daalen
- British Heart Foundation Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
| | | | - Siti Hafizah Zulkiply
- Institute for Medical Research, National Institute of Health, Ministry of Health, Kuala Lumpur, Malaysia
| | - Nur Hayati Azizul
- Institute for Medical Research, National Institute of Health, Ministry of Health, Kuala Lumpur, Malaysia
| | - Norhayati Mustafa Khalid
- Institute for Medical Research, National Institute of Health, Ministry of Health, Kuala Lumpur, Malaysia
| | - Azizan Ali
- Institute for Medical Research, National Institute of Health, Ministry of Health, Kuala Lumpur, Malaysia
| | - Izyan Mohd Idris
- Institute for Medical Research, National Institute of Health, Ministry of Health, Kuala Lumpur, Malaysia
| | - Yong Shih Mei
- Institute for Medical Research, National Institute of Health, Ministry of Health, Kuala Lumpur, Malaysia
| | - Shazana Rifham Abdullah
- Institute for Medical Research, National Institute of Health, Ministry of Health, Kuala Lumpur, Malaysia
| | - Norfashihah Faridus
- Institute for Medical Research, National Institute of Health, Ministry of Health, Kuala Lumpur, Malaysia
| | - Nur Azirah Md Yusof
- Institute for Medical Research, National Institute of Health, Ministry of Health, Kuala Lumpur, Malaysia
| | - Nur Najwa Farahin M Yusoff
- Institute for Medical Research, National Institute of Health, Ministry of Health, Kuala Lumpur, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biological Institute, Kuala Lumpur, Malaysia
| | | | | | - Ammu Kutty Radhakrishnan
- Jeffery Cheah School of Medicine and Health Sciences, Monash University Malaysia, Subang Jaya, Malaysia
| | - Alan Yean Yip Fong
- Department of Cardiology, Sarawak Heart Centre, Kota Samarahan, Malaysia.,Clinical Research Centre, Institute for Clinical Research, Sarawak General Hospital, Kuching, Malaysia
| | - Omar Ismail
- Department of Cardiology, Hospital Pulau Pinang, Pulau Pinang, Malaysia
| | | | - Chuey Yan Lee
- Department of Cardiology, Hospital Sultanah Aminah, Johor, Malaysia
| | - Liew Houng Bang
- Department of Cardiology & Clinical Research Centre, Hospital Queen Elizabeth II, Sabah, Malaysia
| | - Eashwary Mageswaren
- Department of General Medicine, Hospital Tengku Ampuan Rahimah, Selangor, Malaysia
| | - Kauthaman Mahendran
- Department of General Medicine & Clinical Research Centre, Hospital Melaka, Melaka, Malaysia
| | - Nor Hanim Mohd Amin
- Department of General Medicine, Hospital Raja Permaisuri Bainun, Perak, Malaysia
| | | | - Aaron Ong Hean Jin
- Department of General Medicine, Hospital Tuanku Fauziah, Perlis, Malaysia
| | - Ahmad Wazi Ramli
- Department of Cardiology, Hospital Sultanah Nur Zahirah, Terengganu, Malaysia
| | - Noel Thomas Ross
- Department of General Medicine, Hospital Kuala Lumpur, Kuala Lumpur, Malaysia
| | | | - Mansor Yahya
- Institute for Medical Research, National Institute of Health, Ministry of Health, Kuala Lumpur, Malaysia
| | - Yusniza Yusoff
- Department of General Medicine, Hospital Sungai Buloh, Selangor, Malaysia
| | | | - Laryssa Amado
- British Heart Foundation Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
| | - Thomas Bolton
- British Heart Foundation Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom.,National Institute for Health Research Blood and Transplant Research Unit in Donor Health and Genomics, University of Cambridge, Cambridge, United Kingdom
| | - Sophie Weston
- British Heart Foundation Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
| | - Jason Crawte
- British Heart Foundation Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
| | - Niko Ovenden
- British Heart Foundation Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
| | - Ank Michielsen
- British Heart Foundation Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
| | - Md Mostafa Monower
- National Heart Foundation Hospital & Research Institute, Mirpur, Dhaka, Bangladesh
| | - Wan Rozita Wan Mahiyuddin
- Institute for Medical Research, National Institute of Health, Ministry of Health, Kuala Lumpur, Malaysia
| | - Angela Wood
- British Heart Foundation Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom.,National Institute for Health Research Blood and Transplant Research Unit in Donor Health and Genomics, University of Cambridge, Cambridge, United Kingdom.,Health Data Research UK Cambridge, Wellcome Genome Campus and University of Cambridge, Cambridge, United Kingdom.,British Heart Foundation Centre of Research Excellence, University of Cambridge, Cambridge, United Kingdom
| | - Emanuele Di Angelantonio
- British Heart Foundation Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom.,National Institute for Health Research Blood and Transplant Research Unit in Donor Health and Genomics, University of Cambridge, Cambridge, United Kingdom.,Health Data Research UK Cambridge, Wellcome Genome Campus and University of Cambridge, Cambridge, United Kingdom.,British Heart Foundation Centre of Research Excellence, University of Cambridge, Cambridge, United Kingdom
| | - Nur Suffia Sulaiman
- Institute for Medical Research, National Institute of Health, Ministry of Health, Kuala Lumpur, Malaysia
| | - John Danesh
- British Heart Foundation Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom.,National Institute for Health Research Blood and Transplant Research Unit in Donor Health and Genomics, University of Cambridge, Cambridge, United Kingdom.,Health Data Research UK Cambridge, Wellcome Genome Campus and University of Cambridge, Cambridge, United Kingdom.,British Heart Foundation Centre of Research Excellence, University of Cambridge, Cambridge, United Kingdom.,Department of Human Genetics, Wellcome Sanger Institute, Hinxton, United Kingdom
| | - Adam S Butterworth
- British Heart Foundation Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom.,National Institute for Health Research Blood and Transplant Research Unit in Donor Health and Genomics, University of Cambridge, Cambridge, United Kingdom.,Health Data Research UK Cambridge, Wellcome Genome Campus and University of Cambridge, Cambridge, United Kingdom.,British Heart Foundation Centre of Research Excellence, University of Cambridge, Cambridge, United Kingdom
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14
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Zarkasi KA, Abdul Murad NA, Ahmad N, Jamal R, Abdullah N. Coronary Heart Disease in Type 2 Diabetes Mellitus: Genetic Factors and Their Mechanisms, Gene-Gene, and Gene-Environment Interactions in the Asian Populations. Int J Environ Res Public Health 2022; 19:647. [PMID: 35055468 PMCID: PMC8775550 DOI: 10.3390/ijerph19020647] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/03/2022] [Accepted: 01/04/2022] [Indexed: 02/04/2023]
Abstract
Asians are more susceptible to type 2 diabetes mellitus (T2D) and its coronary heart disease (CHD) complications than the Western populations, possibly due to genetic factors, higher degrees of obesity, insulin resistance, and endothelial dysfunction that could occur even in healthy individuals. The genetic factors and their mechanisms, along with gene-gene and gene-environment interactions associated with CHD in T2D Asians, are yet to be explored. Therefore, the objectives of this paper were to review the current evidence of genetic factors for CHD, summarize the proposed mechanisms of these genes and how they may associate with CHD risk, and review the gene-gene and gene-environment interactions in T2D Asians with CHD. The genetic factors can be grouped according to their involvement in the energy and lipoprotein metabolism, vascular and endothelial pathology, antioxidation, cell cycle regulation, DNA damage repair, hormonal regulation of glucose metabolism, as well as cytoskeletal function and intracellular transport. Meanwhile, interactions between single nucleotide polymorphisms (SNPs) from different genes, SNPs within a single gene, and genetic interaction with environmental factors including obesity, smoking habit, and hyperlipidemia could modify the gene's effect on the disease risk. Collectively, these factors illustrate the complexities of CHD in T2D, specifically among Asians.
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Affiliation(s)
- Khairul Anwar Zarkasi
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur 56000, Malaysia; (K.A.Z.); (N.A.A.M.); (R.J.)
- Biochemistry Unit, Preclinical Department, Faculty of Medicine and Defence Health, Universiti Pertahanan Nasional Malaysia, Kuala Lumpur 57000, Malaysia
| | - Nor Azian Abdul Murad
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur 56000, Malaysia; (K.A.Z.); (N.A.A.M.); (R.J.)
| | - Norfazilah Ahmad
- Epidemiology and Statistics Unit, Department of Community Health, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur 56000, Malaysia;
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur 56000, Malaysia; (K.A.Z.); (N.A.A.M.); (R.J.)
| | - Noraidatulakma Abdullah
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur 56000, Malaysia; (K.A.Z.); (N.A.A.M.); (R.J.)
- Faculty of Health Sciences, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur 50300, Malaysia
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15
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Muhammad Azami NA, Abdul Murad NA, Mohammed Nawi A, Salleh SA, Periyasamy P, Kori N, Hasan MR, Ahmad N, Sulong A, Othman H, Mohd Don TN, Ab Mutalib NS, Mohamad Hanif EA, Sulaiman SA, Zulkiflee NS, Abdul Kader AR, Abdul Gafor AH, Rashid HH, Jamal R. COVID-19 in Malaysia: exposure assessment and prevention practices among healthcare workers at a teaching hospital. J Infect Dev Ctries 2021; 15:1816-1824. [PMID: 35044938 DOI: 10.3855/jidc.15277] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 07/24/2021] [Indexed: 10/31/2022] Open
Abstract
INTRODUCTION During the second wave of the coronavirus disease 19 (COVID-19) pandemic, Malaysia reported several COVID-19 clusters related to healthcare workers. Thus, addressing and understanding the risk of exposure in healthcare workers is important to prevent future infection and reduce secondary COVID-19 transmission within the healthcare settings. In this study, we aim to assess exposure and prevention practices against COVID-19 among healthcare workers at the Hospital Canselor Tuanku Muhriz, a university teaching hospital based in Kuala Lumpur, Malaysia. METHODOLOGY A total of 571 healthcare workers at COVID-19 and non-COVID-19 wards as well as the emergency department and laboratory staff at COVID-19 testing labs were recruited. The presence of novel human coronavirus (SARS-CoV-2) and IgM/IgG antibodies were confirmed in all healthcare workers. The healthcare workers responded to an online Google Forms questionnaire that evaluates demographic information and comorbidities, exposure and adherence to infection prevention and control measures against COVID-19. Descriptive analysis was performed using Statistical Package for the Social Sciences 24.0. RESULTS Three healthcare workers (0.5%) tested positive for SARS-CoV-2, while the remaining 568 (99.5%) were negative. All were negative for IgM and IgG antibodies during recruitment (day 1) and follow-up (day 15). More than 90% of the healthcare workers followed infection prevention and control practices recommendations regardless of whether they have been exposed to occupational risk for COVID-19. CONCLUSIONS The healthcare workers' high level of adherence to infection prevention practices at this hospital helped reduce and minimize their occupational exposure to COVID-19.
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Affiliation(s)
- Nor Azila Muhammad Azami
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.
| | - Nor Azian Abdul Murad
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Azmawati Mohammed Nawi
- Department of Public Health, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Sharifah Azura Salleh
- Department of Microbiology and Medical Immunology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Petrick Periyasamy
- Hospital Canselor Tuanku Muhriz, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Najma Kori
- Hospital Canselor Tuanku Muhriz, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Mohd Rohaizat Hasan
- Department of Public Health, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Norfazilah Ahmad
- Department of Public Health, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Anita Sulong
- Department of Microbiology and Medical Immunology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Hanita Othman
- Hospital Canselor Tuanku Muhriz, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | | | | | | | - Siti Aishah Sulaiman
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | | | - Abdul Rashid Abdul Kader
- Staff Polyclinic, Hospital Canselor Tuanku Muhriz, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | | | | | - Rahman Jamal
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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16
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Soon BH, Abu N, Abdul Murad NA, Then SM, Abu Bakar A, Fadzil F, Thanabalan J, Mohd Haspani MS, Toh CJ, Kumar R, Jaafar AS, Mohd Azli AN, Mohd Azahar MS, Paramasvaran S, Palaniandy K, Mohd Tamil A, Jamal R. Somatic mitochondrial DNA mutations in different grades of glioma. Per Med 2021; 19:25-39. [PMID: 34873928 DOI: 10.2217/pme-2021-0033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aim: Mitochondrial DNA (mtDNA) alterations play an important role in the multistep processes of cancer development. Gliomas are among the most diagnosed brain cancer. The relationship between mtDNA alterations and different grades of gliomas are still elusive. This study aimed to elucidate the profile of somatic mtDNA mutations in different grades of gliomas and correlate it with clinical phenotype. Materials & methods: Forty histopathologically confirmed glioma tissue samples and their matched blood were collected and subjected for mtDNA sequencing. Results & conclusion: About 75% of the gliomas harbored at least one somatic mutation in the mtDNA gene, and 45% of these mutations were pathogenic. Mutations were scattered across the mtDNA genome, and the commonest nonsynonymous mutations were located at complex I and IV of the mitochondrial respiratory chain. These findings may have implication for future research to determine the mitochondrial energetics and its downstream metabolomics on gliomas.
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Affiliation(s)
- Bee Hong Soon
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia.,Neurosurgery Unit, Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Nadiah Abu
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Nor Azian Abdul Murad
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Sue-Mian Then
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia.,The University of Nottingham Malaysia Campus, Semenyih, Selangor, Malaysia
| | - Azizi Abu Bakar
- Neurosurgery Unit, Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Farizal Fadzil
- Neurosurgery Unit, Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Jegan Thanabalan
- Neurosurgery Unit, Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | | | - Charng Jeng Toh
- Neurosurgery Unit, Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Ramesh Kumar
- Neurosurgery Unit, Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Ainul Syahrilfazli Jaafar
- Neurosurgery Unit, Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Anis Nabillah Mohd Azli
- Neurosurgery Unit, Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Mohd Syakir Mohd Azahar
- Neurosurgery Unit, Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Sanmugarajah Paramasvaran
- Neurosurgery Unit, Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Kamalanathan Palaniandy
- Neurosurgery Unit, Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Azmi Mohd Tamil
- Department of Community Health, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
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Noyes JD, Mordi IR, Doney AS, Jamal R, Lang CC. Precision Medicine and Adverse Drug Reactions Related to Cardiovascular Drugs. Diseases 2021; 9:diseases9030055. [PMID: 34449608 PMCID: PMC8396016 DOI: 10.3390/diseases9030055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/07/2021] [Accepted: 08/09/2021] [Indexed: 11/16/2022] Open
Abstract
Cardiovascular disease remains the leading global cause of death. Early intervention, with lifestyle advice alongside appropriate medical therapies, is fundamental to reduce patient mortality among high-risk individuals. For those who live with the daily challenges of cardiovascular disease, pharmacological management aims to relieve symptoms and prevent disease progression. Despite best efforts, prescription drugs are not without their adverse effects, which can cause significant patient morbidity and consequential economic burden for healthcare systems. Patients with cardiovascular diseases are often among the most vulnerable to adverse drug reactions due to multiple co-morbidities and advanced age. Examining a patient's genome to assess for variants that may alter drug efficacy and susceptibility to adverse reactions underpins pharmacogenomics. This strategy is increasingly being implemented in clinical cardiology to tailor patient therapies. The identification of specific variants associated with adverse drug effects aims to predict those at greatest risk of harm, allowing alternative therapies to be given. This review will explore current guidance available for pharmacogenomic-based prescribing as well as exploring the potential implementation of genetic risk scores to tailor treatment. The benefits of large databases and electronic health records will be discussed to help facilitate the integration of pharmacogenomics into primary care, the heartland of prescribing.
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Affiliation(s)
- James D Noyes
- Division of Molecular and Clinical Medicine, School of Medicine, University of Dundee, Dundee DD1 9SY, UK
| | - Ify R Mordi
- Division of Molecular and Clinical Medicine, School of Medicine, University of Dundee, Dundee DD1 9SY, UK
| | - Alexander S Doney
- Division of Population Health and Genomics, School of Medicine, University of Dundee, Dundee DD1 9SY, UK
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur 56000, Malaysia
| | - Chim C Lang
- Division of Molecular and Clinical Medicine, School of Medicine, University of Dundee, Dundee DD1 9SY, UK
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18
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Abdul Murad NA, Abdullah N, Kamaruddin MA, Abd Jalal N, Ismail N, Yusof NAM, Mustafa N, Jamal R. Discordance between Fasting Plasma Glucose (FPG) and HbA1c in Diagnosing Diabetes and Pre-diabetes in The Malaysian Cohort. J ASEAN Fed Endocr Soc 2021; 36:127-132. [PMID: 34966195 PMCID: PMC8666496 DOI: 10.15605/jafes.036.02.02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 06/14/2021] [Indexed: 12/03/2022] Open
Abstract
OBJECTIVE In this present study, we aim to evaluate the accuracy of the HbA1c relative to fasting plasma glucose (FPG) in the diagnosis of diabetes and pre-diabetes among The Malaysian Cohort (TMC) participants. METHODOLOGY FPG and HbA1c were taken from 40,667 eligible TMC participants that have no previous history of diabetes, aged between 35-70 years and were recruited from 2006 - 2012. Participants were classified as normal, diabetes and pre-diabetes based on the 2006 World Health Organization (WHO) criteria. Statistical analyses were performed using ANOVA and Chi-square test, while Pearson correlation and Cohen's kappa were used to examine the concordance rate between FPG and HbA1c. RESULTS The study samples consisted of 16,224 men and 24,443 women. The prevalence of diabetes among the participants was 5.7% and 7.5% according to the FPG and HbA1c level, respectively. Based on FPG, 10.6% of the participants had pre-diabetes but this increased to 14.2% based on HbA1c (r=0.86; P<0.001). HbA1c had a sensitivity of 58.20 (95% CI: 56.43, 59.96) and a specificity of 98.59 (95% CI: 98.46, 98.70). CONCLUSION A higher prevalence of pre-diabetes and diabetes was observed when using HbA1c as a diagnosis tool, suggesting that it could possibly be more useful for early detection. However, given that HbA1c may also have lower sensitivity and higher false positive rate, several diagnostic criteria should be used to diagnose diabetes accurately.
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Affiliation(s)
- Nor Azian Abdul Murad
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Noraidatulakma Abdullah
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Mohd Arman Kamaruddin
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Nazihah Abd Jalal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Norliza Ismail
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Nurul Ain Mhd Yusof
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Norlaila Mustafa
- Department of Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Kuala Lumpur, Malaysia
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19
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Abd Talib AKA, Tan SC, Jamal R, Azizan EA, Shaharir SS, Abdul Murad NA. Associated genetic polymorphisms and clinical manifestations in systemic lupus erythematosus in Asian populations - A systematic literature review. Med J Malaysia 2021; 76:541-550. [PMID: 34305116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
INTRODUCTION Systemic lupus erythematosus (SLE) is a chronic and life-threatening autoimmune disease. Its prevalence and clinical manifestations are known to be particularly severe in the Asian populations. Although genetics is known to play an important role in SLE susceptibility and clinical manifestations, the specific polymorphisms associated with these phenotypes in Asia are unclear. Therefore, we aim to review the association of SLE genetic polymorphisms with lupus manifestations across Asian populations and their role in the pathogenesis of SLE. METHODS A systematic search was conducted on PubMed, EBSCOHost, and Web of Science. We identified 22 casecontrol studies that matched our inclusion and exclusion criteria. Information such as study characteristics, genetic polymorphisms associated with SLE, and organ manifestations was extracted and reported in this review. RESULTS In total, 30 polymorphisms in 16 genes were found to be associated with SLE among Asians. All included polymorphisms also reported associations with various SLE clinical features. The association of rs1234315 in TNFSF4 linking to SLE susceptibility (P=4.17x10-17 OR=1.45 95% CI=1.34-1.59) and musculoskeletal manifestation (P=3.35x10-9, OR=1.37, 95%CI= 1.23-1.51) might be the most potential biomarkers to differentiate SLE between Asian and other populations. In fact, these associated genetic variants were found in loci that were implicated in immune systems, signal transduction, gene expression that play important roles in SLE pathogenesis. DISCUSSIONS AND CONCLUSIONS This review summarized the potential correlation between 30 genetic polymorphisms associated with SLE and its clinical manifestations among Asians. More efforts in dissecting the functional implications and linkage disequilibrium of associated variants may be required to validate these findings.
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Affiliation(s)
- A K A Abd Talib
- Universiti Kebangsaan Malaysia (UKM), UKM Medical Molecular Biology Institute (UMBI), Cheras, Kuala Lumpur, Malaysia
| | - S C Tan
- Universiti Kebangsaan Malaysia (UKM), UKM Medical Molecular Biology Institute (UMBI), Cheras, Kuala Lumpur, Malaysia
| | - R Jamal
- Universiti Kebangsaan Malaysia (UKM), UKM Medical Molecular Biology Institute (UMBI), Cheras, Kuala Lumpur, Malaysia
| | - E A Azizan
- Universiti Kebangsaan Malaysia (UKM), Department of Medicine, Endocrinology Unit, Cheras, Kuala Lumpur, Malaysia
| | - S S Shaharir
- Universiti Kebangsaan Malaysia (UKM), Department of Internal Medicine, Rheumatology Unit, Cheras, Kuala Lumpur, Malaysia
| | - N A Abdul Murad
- Universiti Kebangsaan Malaysia (UKM), UKM Medical Molecular Biology Institute (UMBI), Cheras, Kuala Lumpur, Malaysia.
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20
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Azami NAM, Moi ML, Salleh SA, Neoh HM, Kamaruddin MA, Jalal NA, Ismail N, Takasaki T, Kurane I, Jamal R. Dengue epidemic in Malaysia: urban versus rural comparison of dengue immunoglobulin G seroprevalence among Malaysian adults aged 35-74 years. Trans R Soc Trop Med Hyg 2021; 114:798-811. [PMID: 32735681 DOI: 10.1093/trstmh/traa056] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 06/15/2020] [Accepted: 07/02/2020] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND A periodic serosurvey of dengue seroprevalence is vital to determine the prevalence of dengue in countries where this disease is endemic. This study aimed to determine the prevalence of dengue immunoglobulin G (IgG) seropositivity among healthy Malaysian adults living in urban and rural areas. METHODS A total of 2598 serum samples (1417 urban samples, 1181 rural samples) were randomly collected from adults ages 35-74 y. The presence of the dengue IgG antibody and neutralising antibodies to dengue virus (DENV) 1-4 was determined using enzyme-linked immunosorbent assay and the plaque reduction neutralisation test assay, respectively. RESULTS The prevalence of dengue IgG seropositivity was 85.39% in urban areas and 83.48% in rural areas. The seropositivity increased with every 10-y increase in age. Ethnicity was associated with dengue seropositivity in urban areas but not in rural areas. The factors associated with dengue seropositivity were sex and working outdoors. In dengue IgG-positive serum samples, 98.39% of the samples had neutralising antibodies against DENV3, but only 70.97% of them had neutralising antibodies against DENV4. CONCLUSION The high seroprevalence of dengue found in urban and rural areas suggests that both urban and rural communities are vital for establishing and sustaining DENV transmission in Malaysia.
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Affiliation(s)
- Nor Azila Muhammad Azami
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, 56000, Malaysia
| | - Meng Ling Moi
- Institute of Tropical Medicine, Nagasaki University, Nagasaki, 852-8523, Japan
| | - Sharifah Azura Salleh
- Department of Medical Microbiology and Immunology, University Kebangsaan Malaysia Medical Centre, Kuala Lumpur, 56000, Malaysia
| | - Hui-Min Neoh
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, 56000, Malaysia
| | - Mohd Arman Kamaruddin
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, 56000, Malaysia
| | - Nazihah Abdul Jalal
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, 56000, Malaysia
| | - Norliza Ismail
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, 56000, Malaysia
| | - Tomohiko Takasaki
- Kanagawa Prefectural Institute of Public Health, Kanagawa, 253-0087, Japan
| | - Ichiro Kurane
- National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, 56000, Malaysia
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21
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Shahar S, Shahril MR, Abdullah N, Borhanuddin B, Kamaruddin MA, Yusuf NAM, Dauni A, Rosli H, Zainuddin NS, Jamal R. Development and Relative Validity of a Semiquantitative Food Frequency Questionnaire to Estimate Dietary Intake among a Multi-Ethnic Population in the Malaysian Cohort Project. Nutrients 2021; 13:nu13041163. [PMID: 33915922 PMCID: PMC8066188 DOI: 10.3390/nu13041163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/25/2021] [Accepted: 03/26/2021] [Indexed: 01/10/2023] Open
Abstract
Measuring dietary intakes in a multi-ethnic and multicultural setting, such as Malaysia, remains a challenge due to its diversity. This study aims to develop and evaluate the relative validity of an interviewer-administered food frequency questionnaire (FFQ) in assessing the habitual dietary exposure of The Malaysian Cohort (TMC) participants. We developed a nutrient database (with 203 items) based on various food consumption tables, and 803 participants were involved in this study. The output of the FFQ was then validated against three-day 24-h dietary recalls (n = 64). We assessed the relative validity and its agreement using various methods, such as Spearman’s correlation, weighed Kappa, intraclass correlation coefficient (ICC), and Bland–Altman analysis. Spearman’s correlation coefficient ranged from 0.24 (vitamin C) to 0.46 (carbohydrate), and almost all nutrients had correlation coefficients above 0.3, except for vitamin C and sodium. Intraclass correlation coefficients ranged from −0.01 (calcium) to 0.59 (carbohydrates), and weighted Kappa exceeded 0.4 for 50% of nutrients. In short, TMC’s FFQ appears to have good relative validity for the assessment of nutrient intake among its participants, as compared to the three-day 24-h dietary recalls. However, estimates for iron, vitamin A, and vitamin C should be interpreted with caution.
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Affiliation(s)
- Suzana Shahar
- Centre for Healthy Aging and Wellness, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia;
- Correspondence: (S.S.); (R.J.); Tel.: +60-3-9289-7651 (S.S.); +60-3-9145-9000 (R.J.)
| | - Mohd Razif Shahril
- Centre for Healthy Aging and Wellness, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia;
| | - Noraidatulakma Abdullah
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia; (N.A.); (B.B.); (M.A.K.); (N.A.M.Y.); (A.D.)
| | - Boekhtiar Borhanuddin
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia; (N.A.); (B.B.); (M.A.K.); (N.A.M.Y.); (A.D.)
| | - Mohd Arman Kamaruddin
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia; (N.A.); (B.B.); (M.A.K.); (N.A.M.Y.); (A.D.)
| | - Nurul Ain Md Yusuf
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia; (N.A.); (B.B.); (M.A.K.); (N.A.M.Y.); (A.D.)
| | - Andri Dauni
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia; (N.A.); (B.B.); (M.A.K.); (N.A.M.Y.); (A.D.)
| | - Hanisah Rosli
- Faculty of Allied Health Sciences, Cyberjaya University College of Medical Sciences, Persiaran Bestari, Cyberjaya 63000, Malaysia;
| | | | - Rahman Jamal
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia; (N.A.); (B.B.); (M.A.K.); (N.A.M.Y.); (A.D.)
- Correspondence: (S.S.); (R.J.); Tel.: +60-3-9289-7651 (S.S.); +60-3-9145-9000 (R.J.)
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22
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Nawi AM, Chin SF, Mazlan L, Jamal R. Author Correction: Delineating colorectal cancer distribution, interaction, and risk prediction by environmental risk factors and serum trace elements. Sci Rep 2021; 11:4853. [PMID: 33623112 PMCID: PMC7902807 DOI: 10.1038/s41598-021-83219-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Affiliation(s)
- Azmawati Mohammed Nawi
- Department of Community Health, Faculty of Medicine, UKM Medical Center, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, 56000, Cheras, W. Persekutuan, Malaysia. .,Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latif, Bandar Tun Razak, 56000, Cheras, W. Persekutuan, Malaysia.
| | - Siok Fong Chin
- Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latif, Bandar Tun Razak, 56000, Cheras, W. Persekutuan, Malaysia
| | - Luqman Mazlan
- Department of Surgery, UKM Medical Center, UKM, Cheras, Malaysia
| | - Rahman Jamal
- Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latif, Bandar Tun Razak, 56000, Cheras, W. Persekutuan, Malaysia.
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Che Mat MF, Mohamad Hanif EA, Abdul Murad NA, Ibrahim K, Harun R, Jamal R. Silencing of ZFP36L2 increases sensitivity to temozolomide through G2/M cell cycle arrest and BAX mediated apoptosis in GBM cells. Mol Biol Rep 2021; 48:1493-1503. [PMID: 33590411 DOI: 10.1007/s11033-021-06144-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 01/11/2021] [Indexed: 12/15/2022]
Abstract
Despite the advancements in primary brain tumour diagnoses and treatments, the mortality rate remains high, particularly in glioblastoma (GBM). Chemoresistance, predominantly in recurrent cases, results in decreased mean survival of patients with GBM. We aimed to determine the chemosensitisation and oncogenic characteristics of zinc finger protein 36-like 2 (ZFP36L2) in LN18 GBM cells via RNA interference (RNAi) delivery. We conducted a meta-analysis of microarray datasets and RNAi screening using pooled small interference RNA (siRNA) to identify the druggable genes responsive to GBM chemosensitivity. Temozolomide-resistant LN18 cells were used to evaluate the effects of gene silencing on chemosensitisation to the sub-lethal dose (1/10 of the median inhibitory concentration [IC50]) of temozolomide. ZFP36L2 protein expression was detected by western blotting. Cell viability, proliferation, cell cycle and apoptosis assays were carried out using commercial kits. A human apoptosis array kit was used to determine the apoptosis pathway underlying chemosensitisation by siRNA against ZFP36L2 (siZFP36L2). Statistical analyses were performed using one-way analysis of variance; p > 0.05 was considered significant. The meta-analysis and RNAi screening identified ZFP36L2 as a potential marker of GBM. ZFP36L2 knockdown significantly induced apoptosis (p < 0.05). Moreover, ZFP36L2 inhibition led to increased cell cycle arrest and decreased cell proliferation. Downstream analysis showed that the sub-lethal dose of temozolomide and siZFP26L2 caused major upregulation of BCL2-associated X, apoptosis regulator (BAX). ZFP36L2 has oncogenic and chemosensitive characteristics and may play an important role in gliomagenesis through cell proliferation, cell cycle arrest and apoptosis. This suggests that RNAi combined with chemotherapy treatment such as temozolomide may be a potential GBM therapeutic intervention in the future.
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Affiliation(s)
- Mohd Firdaus Che Mat
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Medical Centre, Jalan Ya'acob Latiff, Bandar Tun Razak, 56000, Cheras, Kuala Lumpur, Malaysia
| | - Ezanee Azlina Mohamad Hanif
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Medical Centre, Jalan Ya'acob Latiff, Bandar Tun Razak, 56000, Cheras, Kuala Lumpur, Malaysia
| | - Nor Azian Abdul Murad
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Medical Centre, Jalan Ya'acob Latiff, Bandar Tun Razak, 56000, Cheras, Kuala Lumpur, Malaysia
| | - Kamariah Ibrahim
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Medical Centre, Jalan Ya'acob Latiff, Bandar Tun Razak, 56000, Cheras, Kuala Lumpur, Malaysia
| | - Roslan Harun
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Medical Centre, Jalan Ya'acob Latiff, Bandar Tun Razak, 56000, Cheras, Kuala Lumpur, Malaysia.
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Medical Centre, Jalan Ya'acob Latiff, Bandar Tun Razak, 56000, Cheras, Kuala Lumpur, Malaysia.
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Muhamad NA, Ab Ghani RM, Abdul Mutalip MH, Muhammad EN, Mohamad Haris H, Mohd Zain R, Abdullah N, Muhammad Azami NA, Abd Jalal N, Ismail N, Mhd Yusuf NA, Othman R, Kamalul Arifin AS, Abdullah MS, Kamaruddin MA, Abu Hassan MR, Aris T, Jamal R. Seroprevalence of hepatitis B virus and hepatitis C virus infection among Malaysian population. Sci Rep 2020; 10:21009. [PMID: 33273475 PMCID: PMC7713078 DOI: 10.1038/s41598-020-77813-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 10/21/2020] [Indexed: 11/25/2022] Open
Abstract
Malaysia is a country with an intermediate endemicity for hepatitis B. As the country moves toward hepatitis B and C elimination, population-based estimates are necessary to understand the burden of hepatitis B and C for evidence-based policy-making. Hence, this study aims to estimate the prevalence of hepatitis B and C in Malaysia. A total of 1458 participants were randomly selected from The Malaysian Cohort (TMC) aged 35 to 70 years between 2006 and 2012. All blood samples were tested for hepatitis B and C markers including hepatitis B surface antigen (HBsAg), anti-hepatitis B core antibody (anti-HBc), antibodies against hepatitis C virus (anti-HCV). Those reactive for hepatitis C were further tested for HCV RNA genotyping. The sociodemographic characteristics and comorbidities were used to evaluate their associated risk factors. Descriptive analysis and multivariable analysis were done using Stata 14. From the samples tested, 4% were positive for HBsAg (95% CI 2.7–4.7), 20% were positive for anti-HBc (95% CI 17.6–21.9) and 0.3% were positive for anti-HCV (95% CI 0.1–0.7). Two of the five participants who were reactive for anti-HCV had the HCV genotype 1a and 3a. The seroprevalence of HBV and HCV infection in Malaysia is low and intermediate, respectively. This population-based study could facilitate the planning and evaluation of the hepatitis B and C control program in Malaysia.
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Affiliation(s)
- Nor Asiah Muhamad
- Evidence-Based Healthcare Sector, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Malaysia.,Center for Communicable Diseases Epidemiology Research, Institute for Public Health, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Malaysia
| | - Rimah Melati Ab Ghani
- Evidence-Based Healthcare Sector, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Malaysia.,Center for Communicable Diseases Epidemiology Research, Institute for Public Health, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Malaysia
| | - Mohd Hatta Abdul Mutalip
- Center for Communicable Diseases Epidemiology Research, Institute for Public Health, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Malaysia
| | - Eida Nurhadzira Muhammad
- Center for Communicable Diseases Epidemiology Research, Institute for Public Health, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Malaysia
| | - Hasmah Mohamad Haris
- Center for Communicable Diseases Epidemiology Research, Institute for Public Health, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Malaysia
| | - Rozainanee Mohd Zain
- Institute for Medical Research, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Malaysia
| | - Noraidatulakma Abdullah
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nor Azila Muhammad Azami
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nazihah Abd Jalal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Norliza Ismail
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nurul Ain Mhd Yusuf
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Raihannah Othman
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | | | - Mohd Shaharom Abdullah
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Mohd Arman Kamaruddin
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | | | - Tahir Aris
- Center for Communicable Diseases Epidemiology Research, Institute for Public Health, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Malaysia.,Institute for Medical Research, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.
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Abu N, Othman N, Ab Razak NS, Bakarurraini NAAR, Nasir SN, Soh JEC, Mazlan L, Azman ZAM, Jamal R. Extracellular Vesicles Derived From Colorectal Cancer Affects CD8 T Cells: An Analysis Based on Body Mass Index. Front Cell Dev Biol 2020; 8:564648. [PMID: 33324632 PMCID: PMC7726136 DOI: 10.3389/fcell.2020.564648] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 08/24/2020] [Indexed: 12/21/2022] Open
Abstract
Colorectal cancer (CRC) is one of the most widely diagnosed cancers worldwide. It has been shown that the body-mass index (BMI) of the patients could influence the tumor microenvironment, treatment response, and overall survival rates. Nevertheless, the mechanism on how BMI affects the tumorigenesis process, particularly the tumor microenvironment is still elusive. Herein, we postulate that extracellular vesicles (EVs) from CRC patients and non-CRC volunteers with different BMI could affect immune cells differently, in CD8 T cells particularly. We isolated the EVs from the archived serum of CRC patients with high and low BMI, as well as healthy controls with similar BMI status. The EVs were further characterized via electron microscopy, western blot and dynamic light scattering. Then, functional analysis was performed on CD8 T cells including apoptosis, cell proliferation, gene expression profiling and cytokine release upon co-incubation with the different EVs. Our results suggest that CRC-derived EVs were able to regulate the CD8 T cells. In some assays, low BMI EVs were functionally different than high BMI EVs. This study highlights the possible difference in the regulatory mechanism of cancer patients-derived EVs, especially on CD8 T cells.
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Affiliation(s)
- Nadiah Abu
- UKM Medical Molecular Biology Institute, UKM Medical Center, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Norahayu Othman
- UKM Medical Molecular Biology Institute, UKM Medical Center, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nur' Syahada Ab Razak
- UKM Medical Molecular Biology Institute, UKM Medical Center, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | | | - Siti Nurmi Nasir
- UKM Medical Molecular Biology Institute, UKM Medical Center, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Joanne Ern Chi Soh
- UKM Medical Molecular Biology Institute, UKM Medical Center, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Luqman Mazlan
- Department of Surgery, UKM Medical Center, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Zairul Azwan Mohd Azman
- Department of Surgery, UKM Medical Center, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute, UKM Medical Center, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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26
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Ahmad N, Shah SA, Abdul Gafor AH, Abdul Murad NA, Kamaruddin MA, Abd Jalal N, Ismail N, Alias MR, Jamal R. Gene-environment interaction in chronic kidney disease among people with type 2 diabetes from The Malaysian Cohort project: a case-control study. Diabet Med 2020; 37:1890-1901. [PMID: 32012348 DOI: 10.1111/dme.14257] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/28/2020] [Indexed: 01/05/2023]
Abstract
AIM To examine the possible gene-environment interactions between 32 single nucleotide polymorphisms and environmental factors that could modify the probability of chronic kidney disease. METHODS A case-control study was conducted involving 600 people with type 2 diabetes (300 chronic kidney disease cases, 300 controls) who participated in The Malaysian Cohort project. Retrospective subanalysis was performed on the chronic kidney disease cases to assess chronic kidney disease progression from the recruitment phase. We genotyped 32 single nucleotide polymorphisms using mass spectrometry. The probability of chronic kidney disease and predicted rate of newly detected chronic kidney disease progression were estimated from the significant gene-environment interaction analyses. RESULTS Four single nucleotide polymorphisms (eNOS rs2070744, PPARGC1A rs8192678, KCNQ1 rs2237895 and KCNQ1 rs2283228) and five environmental factors (age, sex, smoking, waist circumference and HDL) were significantly associated with chronic kidney disease. Gene-environment interaction analyses revealed significant probabilities of chronic kidney disease for sex (PPARGC1A rs8192678), smoking (eNOS rs2070744, PPARGC1A rs8192678 and KCNQ1 rs2237895), waist circumference (eNOS rs2070744, PPARGC1A rs8192678, KCNQ1 rs2237895 and KCNQ1 rs2283228) and HDL (eNOS rs2070744 and PPARGC1A rs8192678). Subanalysis indicated that the rate of newly detected chronic kidney disease progression was 133 cases per 1000 person-years (95% CI: 115, 153), with a mean follow-up period of 4.78 (SD 0.73) years. There was a significant predicted rate of newly detected chronic kidney disease progression in gene-environment interactions between KCNQ1 rs2283228 and two environmental factors (sex and BMI). CONCLUSIONS Our findings suggest that the gene-environment interactions of eNOS rs2070744, PPARGC1A rs8192678, KCNQ1 rs2237895 and KCNQ1 rs2283228 with specific environmental factors could modify the probability for chronic kidney disease.
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Affiliation(s)
- N Ahmad
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras, Kuala Lumpur, Malaysia
- Epidemiology and Statistics Unit, Department of Community Health, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, Cheras, Kuala Lumpur, Malaysia
| | - S A Shah
- Epidemiology and Statistics Unit, Department of Community Health, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, Cheras, Kuala Lumpur, Malaysia
| | - A H Abdul Gafor
- Nephrology Unit, Department of Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, Cheras, Kuala Lumpur, Malaysia
| | - N A Abdul Murad
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras, Kuala Lumpur, Malaysia
| | - M A Kamaruddin
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras, Kuala Lumpur, Malaysia
| | - N Abd Jalal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras, Kuala Lumpur, Malaysia
| | | | - M R Alias
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras, Kuala Lumpur, Malaysia
| | - R Jamal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Cheras, Kuala Lumpur, Malaysia
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Abdullah N, Murad NAA, Othman R, Arifin ASK, Alias MR, Kamaruddin MA, Jamal R. Cardiovascular Mortality Risk in the Malaysian Cohort Study. Am Heart J 2020. [DOI: 10.1016/j.ahj.2020.10.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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28
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Nawi AM, Chin SF, Mazlan L, Jamal R. Delineating colorectal cancer distribution, interaction, and risk prediction by environmental risk factors and serum trace elements. Sci Rep 2020; 10:18670. [PMID: 33122698 PMCID: PMC7596468 DOI: 10.1038/s41598-020-75760-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 10/20/2020] [Indexed: 12/27/2022] Open
Abstract
The burden of colorectal cancer (CRC) is increasing worldwide especially in developing countries. This phenomenon may be attributable to lifestyle, dietary and environmental risk factors. We aimed to determine the level of 25 trace elements, their interaction with environmental risk factors, and subsequently develop a risk prediction model for CRC (RPM CRC). For the discovery phase, we used a hospital-based case-control study (CRC and non-CRC patients) and in the validation phase we analysed pre-symptomatic samples of CRC patients from The Malaysian Cohort Biobank. Information on the environmental risk factors were obtained and level of 25 trace elements measured using the ICP-MS method. CRC patients had lower Zn and Se levels but higher Li, Be, Al, Co, Cu, As, Cd, Rb, Ba, Hg, Tl, and Pb levels compared to non-CRC patients. The positive interaction between red meat intake ≥ 50 g/day and Co ≥ 4.77 µg/L (AP 0.97; 95% CI 0.91, 1.03) doubled the risk of CRC. A panel of 24 trace elements can predict simultaneously and accurate of high, moderate, and low risk of CRC (accuracy 100%, AUC 1.00). This study provides a new input on possible roles for various trace elements in CRC as well as using a panel of trace elements as a screening approach to CRC.
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Affiliation(s)
- Azmawati Mohammed Nawi
- Department of Community Health, Faculty of Medicine, UKM Medical Center, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, 56000, Cheras, W. Persekutuan, Malaysia.
- Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latif, Bandar Tun Razak, 56000, Cheras, W. Persekutuan, Malaysia.
| | - Siok Fong Chin
- Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latif, Bandar Tun Razak, 56000, Cheras, W. Persekutuan, Malaysia
| | - Luqman Mazlan
- Department of Surgery, UKM Medical Center, UKM, Cheras, Malaysia
| | - Rahman Jamal
- Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latif, Bandar Tun Razak, 56000, Cheras, W. Persekutuan, Malaysia.
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Abdullah N, Ismail N, Abd Jalal N, Mohd Radin F, Othman R, Kamalul Arifin AS, Kamaruddin MA, Jamal R. Prevalence of anaemia and associated risk factors amongst The Malaysian Cohort participants. Ann Hematol 2020; 99:2521-2527. [PMID: 32975589 DOI: 10.1007/s00277-020-04279-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 09/17/2020] [Indexed: 12/19/2022]
Abstract
This study was aimed at determining the prevalence of anaemia amongst the Malaysian Cohort participants and the associated risk factors. This was a cross-sectional study that involved 102,388 participants from The Malaysian Cohort (TMC) aged between 35 and 70 years old recruited from April 2006 to September 2012. Venous blood was taken for the full blood count. The prevalence of anaemia was 13.8% with majority having the microcytic-hypochromic type (59.7%). Comparison between the ethnic groups showed that Indians have the highest prevalence of anaemia (19.9%), followed by Malays (13.1%), and Chinese (12.0%). The prevalence of anaemia was substantially higher in females (20.1%) compared to males (4.9%). Amongst the female participants, the prevalence of anaemia was highest amongst those who were younger than 49 years old and decreased as the age increased. In contrast, the prevalence of anaemia in males increased with age. Gender, ethnicity, age, marital status, presence of platelet disorders and kidney disease were significant risk factors associated with anaemia and contributed to 14.9% of the risk of developing anaemia in this population. The prevalence of anaemia amongst the Malaysian Cohort participants is 13.8% with the majority having the microcytic and hypochromic type implying iron deficiency as the main cause. It is important that those who have anaemia be further investigated and treated.
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Affiliation(s)
- Noraidatulakma Abdullah
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000, Kuala Lumpur, Malaysia
| | - Norliza Ismail
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000, Kuala Lumpur, Malaysia
| | - Nazihah Abd Jalal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000, Kuala Lumpur, Malaysia
| | - Farazela Mohd Radin
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000, Kuala Lumpur, Malaysia
| | - Raihannah Othman
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000, Kuala Lumpur, Malaysia
| | - Azwa Shazwani Kamalul Arifin
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000, Kuala Lumpur, Malaysia
| | - Mohd Arman Kamaruddin
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000, Kuala Lumpur, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000, Kuala Lumpur, Malaysia.
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Fernandez AA, O'Day S, Merino LDLC, Petrella T, Jamal R, Ny L, Carneiro A, Berrocal A, Márquez-Rodas I, Spreafico A, Victoria Atkinson V, Costa Svedman F, Smith A, Chen K, Diede S, Krepler C, Long G. LBA44 Lenvatinib (len) plus pembrolizumab (pembro) for advanced melanoma (MEL) that progressed on a PD-1 or PD-L1 inhibitor: Initial results of LEAP-004. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.2274] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Rus Bakarurraini NAA, Ab Mutalib NS, Jamal R, Abu N. The Landscape of Tumor-Specific Antigens in Colorectal Cancer. Vaccines (Basel) 2020; 8:E371. [PMID: 32664247 PMCID: PMC7565947 DOI: 10.3390/vaccines8030371] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 06/22/2020] [Accepted: 06/22/2020] [Indexed: 12/24/2022] Open
Abstract
Over the last few decades, major efforts in cancer research and treatment have intensified. Apart from standard chemotherapy approaches, immunotherapy has gained substantial traction. Personalized immunotherapy has become an important tool for cancer therapy with the discovery of immune checkpoint inhibitors. Traditionally, tumor-associated antigens are used in immunotherapy-based treatments. Nevertheless, these antigens lack specificity and may have increased toxicity. With the advent of next-generation technologies, the identification of new tumor-specific antigens is becoming more important. In colorectal cancer, several tumor-specific antigens were identified and functionally validated. Multiple clinical trials from vaccine-based and adoptive cell therapy utilizing tumor-specific antigens have commenced. Herein, we will summarize the current landscape of tumor-specific antigens particularly in colorectal cancer.
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Affiliation(s)
| | | | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia; (N.A.A.R.B.); (N.S.A.M.)
| | - Nadiah Abu
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia; (N.A.A.R.B.); (N.S.A.M.)
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Mohd Ibrahim H, Muda Z, Othman IS, Mohamed Unni MN, Teh KH, Thevarajah A, Gunasagaran K, Ong GB, Yeoh SL, Muhammad Rivai A, Che Mohd Razali CH, Din ND, Abdul Latiff Z, Jamal R, Mohamad N, Mohd Ariffin H, Alias H. Observational study on the current status of thalassaemia in Malaysia: a report from the Malaysian Thalassaemia Registry. BMJ Open 2020; 10:e037974. [PMID: 32601117 PMCID: PMC7328811 DOI: 10.1136/bmjopen-2020-037974] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
OBJECTIVE Thalassaemia is the most common inherited blood disorder in Malaysia. This study aims to report the current status of thalassaemia in Malaysia and provide a comprehensive understanding of the disease through data obtained from the Malaysian Thalassaemia Registry. DESIGN Data were extracted from the Malaysian Thalassaemia Registry, a web-based system accessible to enrolled users through www.mytalasemia.net.my. SETTING The Malaysian Thalassaemia Registry data was recorded from reports obtained from 110 participating government and university hospitals in Malaysia. PARTICIPANTS The patients were those attending the 110 participating hospitals for thalassaemia treatment. INTERVENTION Data were collected from the Malaysian Thalassaemia Registry from 2007 until the fourth quarter of 2018. PRIMARY OUTCOME MEASURE 7984 out of 8681 patients with thalassaemia registered in the Malaysian Thalassaemia Registry were reported alive. RESULTS Majority of the patients were reported in the state of Sabah (22.72%); the largest age group affected was 5.0-24.9 years old (64.45%); the largest ethnic group involved was Malay (63.95%); and the major diagnosis was haemoglobin E/β-thalassaemia (34.37%). From the 7984 patients, 56.73% were on regular blood transfusions and 61.72% were on chelation therapy. A small fraction (14.23%) has undergone splenectomy, while the percentage of patients with severe iron overload (serum ferritin ≥5000 µg/L) reduced over time. However, cardiac complications are still the main cause of death in patients with thalassaemia. CONCLUSION Data gathered into the registry can be used to understand the progression of the disorder, to monitor iron overload management and to improve the outcomes of treatment, to enhance preventive strategies, reduce healthcare burden and improve the quality of life. Sustainability of the Malaysian Thalassaemia Registry is important for surveillance of thalassaemia management in the country and help the national health authorities to develop more effective policies.
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Affiliation(s)
- Hishamshah Mohd Ibrahim
- Division for Research and Technical Support, Ministry of Health Malaysia, Putrajaya, Wilayah Persekutuan Putrajaya, Malaysia
- Department of Paediatrics, Hospital Tunku Azizah, Kuala Lumpur, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | - Zulaiha Muda
- Department of Paediatrics, Hospital Tunku Azizah, Kuala Lumpur, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | - Ida Shahnaz Othman
- Department of Paediatrics, Hospital Tunku Azizah, Kuala Lumpur, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | - Mohamed Najib Mohamed Unni
- Department of Paediatrics, Hospital Tunku Azizah, Kuala Lumpur, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | - Kok Hoi Teh
- Department of Paediatrics, Hospital Tunku Azizah, Kuala Lumpur, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | - Asohan Thevarajah
- Department of Paediatrics, Sabah Women & Children Hospital, Likas, Kota Kinabalu, Sabah, Malaysia
| | - Kogilavani Gunasagaran
- Department of Paediatrics, Sabah Women & Children Hospital, Likas, Kota Kinabalu, Sabah, Malaysia
| | - Gek Bee Ong
- Department of Paediatrics, Hospital Umum Sarawak, Kuching, Sarawak, Malaysia
| | - Seoh Leng Yeoh
- Department of Paediatrics, Hospital Pulau Pinang, Georgetown, Pulau Pinang, Malaysia
| | | | | | - Nazzlin Dizana Din
- Department of Paediatrics, Hospital Sultanah Nur Zahirah Kuala Terengganu, Kuala Terengganu, Terengganu, Malaysia
| | - Zarina Abdul Latiff
- Department of Paediatrics, UKM Medical Centre, The National University of Malaysia, Jalan Yaacob Latif, Cheras, Kuala Lumpur, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute, Jalan Yaacob Latif, Cheras, Kuala Lumpur, Malaysia
| | - Norsarwany Mohamad
- Department of Paediatrics, Hospital Universiti Sains Malaysia, Kota Bahru, Kelantan, Malaysia
| | - Hany Mohd Ariffin
- Department of Paediatrics, University of Malaya Medical Centre, Kuala Lumpur, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | - Hamidah Alias
- Department of Paediatrics, UKM Medical Centre, The National University of Malaysia, Jalan Yaacob Latif, Cheras, Kuala Lumpur, Malaysia
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Ibrahim K, Abdul Murad NA, Harun R, Jamal R. Knockdown of Tousled‑like kinase 1 inhibits survival of glioblastoma multiforme cells. Int J Mol Med 2020; 46:685-699. [PMID: 32468002 PMCID: PMC7307829 DOI: 10.3892/ijmm.2020.4619] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 01/17/2020] [Indexed: 12/27/2022] Open
Abstract
Glioblastoma multiforme (GBM) is an aggressive type of brain tumour that commonly exhibits resistance to treatment. The tumour is highly heterogenous and complex kinomic alterations have been reported leading to dysregulation of signalling pathways. The present study aimed to investigate the novel kinome pathways and to identify potential therapeutic targets in GBM. Meta‑analysis using Oncomine identified 113 upregulated kinases in GBM. RNAi screening was performed on identified kinases using ON‑TARGETplus siRNA library on LN18 and U87MG. Tousled‑like kinase 1 (TLK1), which is a serine/threonine kinase was identified as a potential hit. In vitro functional validation was performed as the role of TLK1 in GBM is unknown. TLK1 knockdown in GBM cells significantly decreased cell viability, clonogenicity, proliferation and induced apoptosis. TLK1 knockdown also chemosensitised the GBM cells to the sublethal dose of temozolomide. The downstream pathways of TLK1 were examined using microarray analysis, which identified the involvement of DNA replication, cell cycle and focal adhesion signalling pathways. In vivo validation of the subcutaneous xenografts of stably transfected sh‑TLK1 U87MG cells demonstrated significantly decreased tumour growth in female BALB/c nude mice. Together, these results suggested that TLK1 may serve a role in GBM survival and may serve as a potential target for glioma.
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Affiliation(s)
- Kamariah Ibrahim
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
| | - Nor Azian Abdul Murad
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
| | - Roslan Harun
- KPJ Ampang Puteri Specialist Hospital, Ampang, Selangor 68000, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
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Abu N, Othman N, W Hon K, Nazarie WF, Jamal R. Integrative meta-analysis for the identification of hub genes in chemoresistant colorectal cancer. Biomark Med 2020; 14:525-537. [PMID: 32462912 DOI: 10.2217/bmm-2019-0241] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Background: Finding a new target or a new drug to overcome chemoresistance is difficult due to the heterogenous nature of cancer. Meta-analysis was performed to combine the analysis of different microarray studies to get a robust discovery. Materials & methods: Herein, we analyzed three microarray datasets on combination of folinic acid, fluorouracil, and oxaliplatin drugs (FOLFOX) resistance that fit our inclusion/exclusion criteria and performed a meta-analysis using the OmiCC system. Results: We identified several deregulated genes and we discovered HNF4A as a hub gene. We performed functional validation and observed that by targeting HNF4A, HCT116 cells were more sensitive toward both oxaliplatin and 5-fluorouracil significantly. Conclusion: Our findings show that HNF4A could be a potential target in overcoming FOLFOX chemoresistance in colorectal cancer.
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Affiliation(s)
- Nadiah Abu
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Cheras 56000, Kuala Lumpur, Malaysia
| | - Norahayu Othman
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Cheras 56000, Kuala Lumpur, Malaysia
| | - Kha W Hon
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Cheras 56000, Kuala Lumpur, Malaysia
| | - Wan Fwm Nazarie
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Cheras 56000, Kuala Lumpur, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Cheras 56000, Kuala Lumpur, Malaysia
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Mohd Yunos RI, Ab Mutalib NS, Tieng FYF, Abu N, Jamal R. Actionable Potentials of Less Frequently Mutated Genes in Colorectal Cancer and Their Roles in Precision Medicine. Biomolecules 2020; 10:biom10030476. [PMID: 32245111 PMCID: PMC7175115 DOI: 10.3390/biom10030476] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/11/2020] [Accepted: 03/13/2020] [Indexed: 02/06/2023] Open
Abstract
Global statistics have placed colorectal cancer (CRC) as the third most frequently diagnosed cancer and the fourth principal cause of cancer-related deaths worldwide. Improving survival for CRC is as important as early detection. Personalized medicine is important in maximizing an individual's treatment success and minimizing the risk of adverse reactions. Approaches in achieving personalized therapy in CRC have included analyses of specific genes with its clinical implications. Tumour genotyping via next-generation sequencing has become a standard practice to guide clinicians into predicting tumor behaviour, disease prognosis, and treatment response. Nevertheless, better prognostic markers are necessary to further stratify patients for personalized treatment plans. The discovery of new markers remains indispensable in providing the most effective chemotherapy in order to improve the outcomes of treatment and survival in CRC patients. This review aims to compile and discuss newly discovered, less frequently mutated genes in CRC. We also discuss how these mutations are being used to assist therapeutic decisions and their potential prospective clinical utilities. In addition, we will summarize the importance of profiling the large genomic rearrangements, gene amplification, and large deletions and how these alterations may assist in determining the best treatment option for CRC patients.
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Affiliation(s)
| | | | | | | | - Rahman Jamal
- Correspondence: (N.S.A.M.); (R.J.); Tel.: +60-3-91459073 (N.S.A.M.); +60-3-91459000 (R.J.)
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Loganathan TS, Sulaiman SA, Abdul Murad NA, Shah SA, Abdul Gafor AH, Jamal R, Abdullah N. Interactions Among Non-Coding RNAs in Diabetic Nephropathy. Front Pharmacol 2020; 11:191. [PMID: 32194418 PMCID: PMC7062796 DOI: 10.3389/fphar.2020.00191] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 02/10/2020] [Indexed: 12/14/2022] Open
Abstract
Diabetic Nephropathy (DN) is the most common cause of End-stage renal disease (ESRD). Although various treatments and diagnosis applications are available, DN remains a clinical and economic burden. Recent findings showed that noncoding RNAs (ncRNAs) play an important role in DN progression, potentially can be used as biomarkers and therapeutic targets. NcRNAs refers to the RNA species that do not encode for any protein, and the most known ncRNAs are the microRNAs (miRNAs), long noncoding RNAs (lncRNAs), and circular RNAs (circRNAs). Dysregulation of these ncRNAs was reported before in DN patients and animal models of DN. Importantly, there are some interactions between these ncRNAs to regulate the crucial steps in DN progression. Here, we aimed to discuss the reported ncRNAs in DN and their interactions with critical genes in DN progression. Elucidating these ncRNAs regulatory network will allow for a better understanding of the molecular mechanisms in DN and how they can act as new biomarkers for DN and also as the potential targets for treatment.
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Affiliation(s)
- Tamil Selvi Loganathan
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Siti Aishah Sulaiman
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nor Azian Abdul Murad
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Shamsul Azhar Shah
- Department of Community Health, UKM Medical Centre, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Abdul Halim Abdul Gafor
- Nephrology Unit, Faculty of Medicine, UKM Medical Centre, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Noraidatulakma Abdullah
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Osman SH, Abu N, Aziz H, Chow YP, Wan Mohamad Nazarie WF, Ab Mutalib NS, Alias H, Jamal R. Deep Transcriptome Sequencing of Pediatric Acute Myeloid Leukemia Patients at Diagnosis, Remission and Relapse: Experience in 3 Malaysian Children in a Single Center Study. Front Genet 2020; 11:66. [PMID: 32174960 PMCID: PMC7056821 DOI: 10.3389/fgene.2020.00066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 01/20/2020] [Indexed: 12/03/2022] Open
Affiliation(s)
- Siti Hawa Osman
- UKM Medical Molecular Biology Institute, The National University of Malaysia, Cheras, Malaysia
| | - Nadiah Abu
- UKM Medical Molecular Biology Institute, The National University of Malaysia, Cheras, Malaysia
| | - Habsah Aziz
- UKM Medical Molecular Biology Institute, The National University of Malaysia, Cheras, Malaysia
| | - Yock Ping Chow
- UKM Medical Molecular Biology Institute, The National University of Malaysia, Cheras, Malaysia
| | | | | | - Hamidah Alias
- Department of Pediatrics, UKM Medical Centre, Faculty of Medicine, The National University of Malaysia, Cheras, Malaysia
- *Correspondence: Hamidah Alias, ; Rahman Jamal,
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute, The National University of Malaysia, Cheras, Malaysia
- *Correspondence: Hamidah Alias, ; Rahman Jamal,
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Tan SC, Lim PY, Fang J, Mokhtar MFM, Hanif EAM, Jamal R. Association between MIR499A rs3746444 polymorphism and breast cancer susceptibility: a meta-analysis. Sci Rep 2020; 10:3508. [PMID: 32103099 PMCID: PMC7044335 DOI: 10.1038/s41598-020-60442-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Accepted: 02/13/2020] [Indexed: 12/14/2022] Open
Abstract
Numerous studies have investigated the association of MIR499A rs3746444 polymorphism with breast cancer susceptibility, but the results have been inconsistent. In this work, we performed a meta-analysis to obtain a more reliable estimate of the association between the polymorphism and susceptibility to breast cancer. A comprehensive literature search was conducted on PubMed, Scopus, Web of Science (WoS), China National Knowledge Infrastructure (CNKI), VIP and Wanfang databases up to January 2020. A total of 14 studies involving 6,797 cases and 8,534 controls were included for analysis under five genetic models: homozygous (GG vs. AA), heterozygous (AG vs. AA), dominant (AG + GG vs. AA), recessive (GG vs. AA + AG) and allele (G vs. A). A statistically significant association was observed between the polymorphism and an increased breast cancer susceptibility under all genetic models (homozygous, OR = 1.33, 95% CI = 1.03-1.71, P = 0.03; heterozygous, OR = 1.08, 95% CI = 1.00-1.16, P = 0.04; dominant, OR = 1.15, 95% CI = 1.02-1.30; P = 0.03; recessive, OR = 1.35, 95% CI = 1.06-1.72, P = 0.01; allele, OR = 1.12, 95% CI = 1.00-1.26, P = 0.04). Subgroup analysis based on ethnicity suggested that significant association was present only among Asians, but not Caucasians. In conclusion, MIR499A rs3746444 polymorphism was significantly associated with breast cancer susceptibility among Asians, suggesting its potential use as a genetic risk marker in this population.
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Affiliation(s)
- Shing Cheng Tan
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.
| | - Poh Ying Lim
- Department of Community Health, Faculty of Medicine & Health Sciences, Universiti Putra Malaysia, Selangor, Malaysia
| | - Jie Fang
- Department of Language and Literacy Education, Faculty of Education, University of Malaya, Kuala Lumpur, Malaysia
| | | | | | - Rahman Jamal
- UKM Medical Molecular Biology Institute, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Jeyaraman S, Hanif EAM, Ab Mutalib NS, Jamal R, Abu N. Circular RNAs: Potential Regulators of Treatment Resistance in Human Cancers. Front Genet 2020; 10:1369. [PMID: 32047511 PMCID: PMC6997550 DOI: 10.3389/fgene.2019.01369] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 12/16/2019] [Indexed: 01/06/2023] Open
Abstract
Circular RNAs (circRNAs) which were once considered as "junk" are now in the spotlight as a potential player in regulating human diseases, especially cancer. With the development of high throughput technologies in recent years, the full potential of circRNAs is being uncovered. CircRNAs possess some unique characteristics and advantageous properties that could benefit medical research and clinical applications. CircRNAs are stable with covalently closed loops that are resistant to ribonucleases, have disease stage-specific expressions and are selectively abundant in different types of tissues. Interestingly, the presence of circRNAs in different types of treatment resistance in human cancers was recently observed with the involvement of a few key pathways. The activation of certain pathways by circRNAs may give new insights to treatment resistance management. The potential usage of circRNAs from this aspect is very much in its infancy stage and has not been fully validated. This mini-review attempts to highlight the possible role of circRNAs as regulators of treatment resistance in human cancers based on its intersection molecules and cancer-related regulatory networks.
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Affiliation(s)
- Shivapriya Jeyaraman
- UKM Medical Molecular Biology Institute (UMBI), UKM Medical Center, Kuala Lumpur, Malaysia
| | | | | | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), UKM Medical Center, Kuala Lumpur, Malaysia
| | - Nadiah Abu
- UKM Medical Molecular Biology Institute (UMBI), UKM Medical Center, Kuala Lumpur, Malaysia
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Abdullah N, Abd Jalal N, Ismail N, Kamaruddin MA, Abd Mutalib NS, Alias MR, Mazlan L, Sagap I, Jamal R. Colorectal screening using the immunochemical faecal occult blood test kit among the Malaysian cohort participants. Cancer Epidemiol 2020; 65:101656. [PMID: 31923638 DOI: 10.1016/j.canep.2019.101656] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 11/19/2019] [Accepted: 12/04/2019] [Indexed: 01/01/2023]
Abstract
BACKGROUND There has been a rapid increase in colorectal cancer (CRC) cases in Asian countries, including Malaysia. CRC is usually diagnosed at a late stage, and early detection of CRC is vital in improving survival. This study was conducted to determine the uptake rate of the immunochemical faecal occult blood test (iFOBT), the response rate to colonoscopy, and the CRC detection rate. We also wanted to identify the association between colorectal neoplasia and the Asia Pacific Colorectal Cancer Screening (APCS) scoring system. METHODS We recruited 2264 individuals from The Malaysian Cohort participants aged 35-65 years who consented to colorectal screening using the iFOBT kit from July 2017 until January 2019. RESULTS The response rate and positive iFOBT test rate of this study were 79.6% and 13.1% respectively. Among those with positive results, 125 individuals (52.7%) underwent colonoscopy; CRC was detected in six of them while 45 others (36.0%) had polyps. The overall CRC detection rate was 0.3% while the colorectal neoplasia detection rate (both colorectal cancer and colorectal polyps) was 2.3%. The APCS scoring indicated a significant association with colorectal neoplasia risk, with increasing trend by severity from moderate to high risk (3.46-11.14) compared to low risk. Most of the participants who were positive for iFOBT were those at high risk. CONCLUSIONS The awareness of CRC risk and iFOBT screening are important strategies for early detection of CRC. We showed a CRC detection rate of 0.3 % among those who volunteered to have the iFOBT screening.
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Affiliation(s)
- Noraidatulakma Abdullah
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nazihah Abd Jalal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Norliza Ismail
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Mohd Arman Kamaruddin
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nurul Syakima Abd Mutalib
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Mohd Raziff Alias
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Luqman Mazlan
- Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Ismail Sagap
- Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.
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Hon KW, Othman N, Hanif EAM, Nasir SN, Razak NSA, Jamal R, Abu N. Predictive biomarkers of drug resistance in colorectal cancer—Recent updates. Drug Resistance in Colorectal Cancer: Molecular Mechanisms and Therapeutic Strategies 2020:135-151. [DOI: 10.1016/b978-0-12-819937-4.00008-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Mohammed Nawi A, Chin SF, Jamal R. Simultaneous analysis of 25 trace elements in micro volume of human serum by inductively coupled plasma mass spectrometry (ICP-MS). Pract Lab Med 2020; 18:e00142. [PMID: 31720354 PMCID: PMC6838531 DOI: 10.1016/j.plabm.2019.e00142] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 08/06/2019] [Accepted: 10/08/2019] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION In recent years, trace elements have gained importance as biomarkers in many chronic diseases. Unfortunately, the requirement for sample volume increases with the extent of investigation either for diagnosis or elucidating the mechanism of the disease. Here, we describe the method development and validation for simultaneous determination of 25 trace elements (lithium [Li], beryllium [Be], magnesium [Mg], aluminium [Al], vanadium [V], chromium [Cr], manganese [Mn], iron [Fe], cobalt [Co], nickel [Ni], copper [Cu], zinc [Zn], gallium [Ga], arsenic [As], selenium [Se], rubidium [Rb], strontium [Sr], silver [Ag], cadmium [Cd], caesium [Cs], barium [Ba], mercury [Hg], thallium [Tl], lead [Pb], uranium [U]) using only 20 μL of human serum. METHODS Serum samples were digested with nitric acid and hydrochloric acid (ratio 1:1, v/v) and analysed by inductively coupled plasma-mass spectrometry (ICP-MS). Seronorm®, a human-derived serum control material was used as quality control samples. RESULTS The coefficient of variations for both intra- and inter-day precisions were consistently <15% for all elements. The validated method was later tested on 30 human serum samples to evaluate its applicability. CONCLUSION We have successfully developed and validated a precise and accurate analytical method for determining 25 trace elements requiring very low volume of human serum.
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Affiliation(s)
- Azmawati Mohammed Nawi
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latiff, Bandar Tun Razak, 56000 Cheras, W. Persekutuan, Kuala Lumpur, Malaysia
- Department of Community Health, Universiti Kebangsaan Malaysia Medical Center, Jalan Yaacob Latiff, Bandar Tun Razak, 56000 Cheras, W. Persekutuan, Kuala Lumpur, Malaysia
| | - Siok-Fong Chin
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latiff, Bandar Tun Razak, 56000 Cheras, W. Persekutuan, Kuala Lumpur, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latiff, Bandar Tun Razak, 56000 Cheras, W. Persekutuan, Kuala Lumpur, Malaysia
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Abu N, Al-Abd AM, Allam RM, Chen X, El-Halawany AM, Fesler A, Goka ET, Hanif EAM, Hara A, Hon KW, Huang Y, Jamal R, Ju J, Li F, Liang XJ, Lippman ME, Ma X, Nasir SN, Othman N, Peters GJ, Razak NSA, Safa AR, To KK, Tomita H, Tong CW, Wu M, Yan W, Yu J, Zhao P, Zhong B, Zhong J. Contributors. Drug Resistance in Colorectal Cancer: Molecular Mechanisms and Therapeutic Strategies 2020:xix-xx. [DOI: 10.1016/b978-0-12-819937-4.09988-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Hon KW, Ab-Mutalib NS, Abdullah NMA, Jamal R, Abu N. Extracellular Vesicle-derived circular RNAs confers chemoresistance in Colorectal cancer. Sci Rep 2019; 9:16497. [PMID: 31712601 PMCID: PMC6848089 DOI: 10.1038/s41598-019-53063-y] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 10/25/2019] [Indexed: 02/07/2023] Open
Abstract
Chemo-resistance is associated with poor prognosis in colorectal cancer (CRC), with the absence of early biomarker. Exosomes are microvesicles released by body cells for intercellular communication. Circular RNAs (circRNAs) are non-coding RNAs with covalently closed loops and enriched in exosomes. Crosstalk between circRNAs in exosomes and chemo-resistance in CRC remains unknown. This research aims to identify exosomal circRNAs associated with FOLFOX-resistance in CRC. FOLFOX-resistant HCT116 CRC cells (HCT116-R) were generated from parental HCT116 cells (HCT116-P) using periodic drug induction. Exosomes were characterized using transmission electron microscopy (TEM), Zetasizer and Western blot. Our exosomes were translucent cup-shaped structures under TEM with differential expression of TSG101, CD9, and CD63. We performed circRNAs microarray using exosomal RNAs from HCT116-R and HCT116-P cells. We validated our microarray data using serum samples. We performed drug sensitivity assay and cell cycle analysis to characterize selected circRNA after siRNA-knockdown. Using fold change >2 and p < 0.05, we identified 105 significantly upregulated and 34 downregulated circRNAs in HCT116-R exosomes. Knockdown of circ_0000338 improved the chemo-resistance of CRC cells. We have proposed that circ_0000338 may have dual regulatory roles in chemo-resistant CRC. Exosomal circ_0000338 could be a potential biomarker for further validation in CRC.
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Affiliation(s)
- Kha Wai Hon
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nurul Syakima Ab-Mutalib
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nik Muhd Aslan Abdullah
- Department of Oncology and Radiotherapy, UKM Medical Center, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nadiah Abu
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.
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Ang MY, Low TY, Lee PY, Wan Mohamad Nazarie WF, Guryev V, Jamal R. Proteogenomics: From next-generation sequencing (NGS) and mass spectrometry-based proteomics to precision medicine. Clin Chim Acta 2019; 498:38-46. [DOI: 10.1016/j.cca.2019.08.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 08/13/2019] [Accepted: 08/13/2019] [Indexed: 12/14/2022]
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Yusof AM, Jamal R, Saidin S, Muhammad R, Suhaimi SNA, Rose IM, Nazarie WFW, Fu FTY, Mutalib NSA. Deep Small RNA Sequencing of BRAF V600E Mutated Papillary Thyroid Carcinoma With Lymph Node Metastasis. Front Genet 2019; 10:941. [PMID: 31649724 PMCID: PMC6791926 DOI: 10.3389/fgene.2019.00941] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 09/05/2019] [Indexed: 01/08/2023] Open
Affiliation(s)
- Azliana Mohamad Yusof
- Cytogenetics and Molecular Diagnostics Laboratory, Pantai Premier Pathology Sdn Bhd, Kuala Lumpur, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Sazuita Saidin
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Rohaizak Muhammad
- Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | | | - Isa Mohamed Rose
- Department of Pathology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Wan Fahmi Wan Nazarie
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Francis Tieng Yew Fu
- Institute of Bioscience (IBS), Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
| | - Nurul-Syakima Ab Mutalib
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Mohd Yunos RI, Ab Mutalib NS, Khor SS, Saidin S, Abd Razak MR, Mahamad Nadzir N, Abd. Razak Z, Mohamed Rose I, Sagap I, Mazlan L, Abu N, Jamal R. Whole exome sequencing identifies genomic alterations in proximal and distal colorectal cancer. Prog Micobes Mol Biol 2019; 2. [DOI: 10.36877/pmmb.a0000036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Majority of colorectal cancer (CRC) patients are presented with advanced disease at diagnosis, particularly in cases of proximal CRCs. Little is known about the relationship between the genetic landscape and the anatomical location of the tumour; as well as the prognostication in CRC patients. The objectives of this study were to determine the somatic single nucleotide variants (SNV) and the cellular pathways between the proximal and distal CRCs. Whole exome sequencing was performed on the Ion Proton platform on 10 pairs of normal and CRC samples. The sequencing results were analysed using the Torrent Suite Software and the variants were annotated using ANNOVAR; followed by validation with Sanger sequencing. APC is the most frequently altered gene in both proximal and distal CRCs. KRAS and ATM genes were particularly altered in the proximal CRCs with a frequency of 60% and 40%, respectively. On the other hand, TP53 mutations did not show any CRC anatomical predominance. There were five recurrent novel variants in proximal CRCs and no recurrent variants identified in distal CRC. Wnt signalling pathway was the most frequently altered pathway in both proximal and distal CRCs whereas TGF-? and PI3K signalling pathways were predominantly altered in the proximal CRCs. We found that proximal CRCs presented with more variants and different altered pathways as compared to distal CRCs. However, further study in a larger series of samples coupled with functional studies will be required to confirm the identified variants and determine their roles in the pathogenesis of proximal and distal CRCs.
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Abstract
Exosomes, a category of small lipid bilayer extracellular vesicles that are naturally secreted by many cells (both healthy and diseased), carry cargo made up of proteins, lipids, DNAs, and RNAs; all of which are functional when transferred to their recipient cells. Numerous studies have demonstrated the powerful role that exosomes play in the mediation of cell-to-cell communication to induce a pro-tumoral environment to encourage tumor progression and survival. Recently, considerable interest has developed in regard to the role that exosomes play in immunity; with studies demonstrating the ability of exosomes to either metabolically alter immune players such as dendritic cells, T cells, macrophages, and natural killer cells. In this review, we summarize the recent literature on the function of exosomes in regulating a key process that has long been associated with the progression of cancer-inflammation and immunity.
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Affiliation(s)
- Norahayu Othman
- UKM Medical Centre, UKM Medical Molecular Biology Institute, Kuala Lumpur, Malaysia
| | - Rahman Jamal
- UKM Medical Centre, UKM Medical Molecular Biology Institute, Kuala Lumpur, Malaysia
| | - Nadiah Abu
- UKM Medical Centre, UKM Medical Molecular Biology Institute, Kuala Lumpur, Malaysia
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Soh JE, Abu N, Sagap I, Mazlan L, Yahaya A, Mustangin M, Khoo TS, Saidin S, Ishak M, Ab Mutalib NS, Jamal R. Validation of immunogenic PASD1 peptides against HLA-A*24:02 colorectal cancer. Immunotherapy 2019; 11:1205-1219. [PMID: 31478431 DOI: 10.2217/imt-2019-0073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Colorectal cancer is the third commonest malignancy in Asia including Malaysia. The immunogenic cancer-testis antigens, which are expressed in a variety of cancers but with limited expression in normal tissues except the testis, represent an attractive approach to improve treatment options for colorectal cancer. We aimed to validate four PASD1 peptides as the immunotherapeutic targets in colorectal cancer. First, PASD1 mRNA and protein expression were determined via real-time polymerase chain reaction (RT-PCR) and immunohistochemistry. The PASD1 peptides specific to HLA-A*24:02 were investigated using IFN-y-ELISpot assay, followed by the cytolytic and granzyme-B-ELISpot assays to analyze the cytolytic effects of CD8+ T cells. Gene and protein expressions of PASD1 were detected in 20% and 17.3% of colorectal cancer samples, respectively. PASD1(4) peptide was shown to be immunogenic in colorectal cancer samples. CD8+ T cells raised against PASD1(4) peptide were able to lyze HLA-A*24:02+ PASD1+ cells. Our results reveal that PASD1(4) peptide represents a potential target for colorectal cancer.
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Affiliation(s)
- Joanne Ec Soh
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nadiah Abu
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Ismail Sagap
- Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Luqman Mazlan
- Department of Surgery, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Azyani Yahaya
- Department of Pathology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Muaatamarulain Mustangin
- Department of Pathology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Tze S Khoo
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Sazuita Saidin
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Muhiddin Ishak
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nurul S Ab Mutalib
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Tan XE, Neoh HM, Cui L, Hiramatsu K, Jamal R. Oxidative stress resistance and fitness-compensatory response in vancomycin-intermediate Staphylococcus aureus (VISA). Can J Microbiol 2019; 65:623-628. [DOI: 10.1139/cjm-2019-0048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In this study, vancomycin-intermediate Staphylococcus aureus (VISA) cells carrying vraS and (or) graR mutations were shown to be more resistant to oxidative stress. Caenorhabditis elegans infected with these strains in turn demonstrated lower survival. Altered regulation in oxidative stress response and virulence appear to be physiological adaptations associated with the VISA phenotype in the Mu50 lineage.
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Affiliation(s)
- Xin-Ee Tan
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Malaysia
| | - Hui-min Neoh
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Malaysia
- Department of Bacteriology, School of Medicine, Juntendo University, Japan
| | - Longzhu Cui
- Division of Bacteriology, Department of Infection and Immunity, School of Medicine, Jichi Medical University, Japan
| | - Keiichi Hiramatsu
- Department of Bacteriology, School of Medicine, Juntendo University, Japan
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Malaysia
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