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Ismail A, Ahid F, Thong MK, Zakaria Z. Terminal microdeletion of chromosome 18 in a Malaysian boy characterized with few features of typical 18q- deletion syndrome: a case report. J Med Case Rep 2023; 17:250. [PMID: 37296475 DOI: 10.1186/s13256-023-03984-0] [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: 07/21/2022] [Accepted: 05/13/2023] [Indexed: 06/12/2023] Open
Abstract
BACKGROUND The 18q- deletion syndrome is a rare congenital chromosomal disorder caused by a partial deletion of the long arm of chromosome 18. The diagnosis of a patient with this syndrome relies on the family medical history, physical examination, developmental assessment, and cytogenetic findings. However, the phenotype of patients with 18q- deletion syndrome can be highly variable, ranging from almost normal to severe malformations and intellectual disability, and normal cytogenetic findings are common, thus complicating the diagnosis. Interestingly, only few characteristic features of typical 18q- deletion syndrome were found in the patient, despite sharing the same critical region. To our knowledge, this is the first report of a Malaysian individual with 18q- terminal microdeletion diagnosed with microarray-based technology. CASE PRESENTATION Here we report a 16-year-old Malaysian Chinese boy, a product of a non-consanguineous marriage, who presented with intellectual disability, facial dysmorphism, high arched palate, congenital talipes equinovarus (clubfoot), congenital scoliosis, congenital heart defect, and behavioral problems. A routine chromosome analysis on 20 metaphase cells showed a normal 46, XY G-banded karyotype. Array-based comparative genomic hybridization was performed using a commercially available 244 K 60-mer oligonucleotide microarray slide according to the manufacturer's protocol. This platform allows genome-wide survey and molecular profiling of genomic aberrations with an average resolution of about 10 kB. In addition, multiplex ligation-dependent probe amplification analysis was carried out using SALSA MLPA kit P320 Telomere-13 to confirm the array-based comparative genomic hybridization finding. Array-based comparative genomic hybridization analysis revealed a 7.3 MB terminal deletion involving chromosome band 18q22.3-qter. This finding was confirmed by multiplex ligation-dependent probe amplification, where a deletion of ten probes mapping to the 18q22.3-q23 region was detected, and further multiplex ligation-dependent probe amplification analysis on his parents showed the deletion to be de novo. CONCLUSION The findings from this study expand the phenotypic spectrum of the 18q- deletion syndrome by presenting a variation of typical 18q- deletion syndrome features to the literature. In addition, this case report demonstrated the ability of the molecular karyotyping method, such as array-based comparative genomic hybridization, to assist in the diagnosis of cases with a highly variable phenotype and variable aberrations, such as 18q- deletion syndrome.
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Affiliation(s)
- Azli Ismail
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Selangor, Malaysia
| | - Fadly Ahid
- Centre for Medical Laboratory Technology Studies, Faculty of Health Sciences, Universiti Teknologi MARA, 42300, Puncak Alam, Selangor, Malaysia.
- Stem Cell and Regenerative Medicine Research Initiative Group, Universiti Teknologi MARA, 40450, Shah Alam, Selangor, Malaysia.
| | - Meow-Keong Thong
- Department of Pediatrics, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Zubaidah Zakaria
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Selangor, Malaysia
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Loh ZH, Mohamad S, Gan BC, Zakaria Z, Mohamad I. Thyroid function status evaluation in patient post-radiotherapy for nasopharyngeal carcinoma: A retrospective study. Med J Malaysia 2023; 78:197-201. [PMID: 36988530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
INTRODUCTION Nasopharyngeal carcinoma (NPC) is among the most common malignancy in Malaysia. Radiationinduced hypothyroidism has been reported in other countries. However, in Malaysia, no studies were ever done to determine the effect of radiation on hypothyroidism. The objective of this study is to evaluate the practice of taking thyroid function test (TFT) and determine hypothyroidism post-radiation in patients with NPC. MATERIALS AND METHODS A retrospective study on the symptoms and results of TFT according to the dosage of intensity-modulated radiotherapy (IMRT) given to patients with NPC. Data were traced and analysed. RESULTS A total of 78 patients were identified. All patients received IMRT with 33-35 fractions of radiotherapy (RT) with total dosage of 66-70 Gray given. Not all patients had their thyroid function status measured routinely. Twelve patients did have symptoms of hypothyroidism. TFT were obtained in this group but the results were normal. No correlation was found between RT and hypothyroidism. CONCLUSION There was no correlation between IMRT and the development of hypothyroidism. A prospective study with better control of inclusion and exclusion criteria, and longer follow-up period with TFT, is needed to demonstrate the consistency of these findings.
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Affiliation(s)
- Z H Loh
- Universiti Sains Malaysia, School of Medical Sciences, Department of Otorhinolaryngology-Head & Neck Surgery, Health Campus, Kubang Kerian, Kelantan, Malaysia
| | - S Mohamad
- Universiti Sains Malaysia, School of Medical Sciences, Department of Otorhinolaryngology-Head & Neck Surgery, Health Campus, Kubang Kerian, Kelantan, Malaysia
| | - B C Gan
- Penang General Hospital, Department of Otorhinolaryngology-Head & Neck Surgery, Health Campus, Penang, Malaysia
| | - Z Zakaria
- Penang General Hospital, Department of Otorhinolaryngology-Head & Neck Surgery, Health Campus, Penang, Malaysia
| | - I Mohamad
- Universiti Sains Malaysia, School of Medical Sciences, Department of Otorhinolaryngology-Head & Neck Surgery, Health Campus, Kubang Kerian, Kelantan, Malaysia.
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Bekbayeva L, Zakaria Z, Negim ES, Al Azzam K, Yeligbayeva G. The effect of mixed fertilizers on the vegetative growth and reproductive characteristics of tomatoes (L. esculentum Mill). ijbch 2022. [DOI: 10.26577/ijbch.2022.v15.i1.04] [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: 11/03/2022]
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Mat Yusoff Y, Ahid F, Abu Seman Z, Abdullah J, Kamaluddin NR, Esa E, Zakaria Z. Comprehensive analysis of mutations and clonal evolution patterns in a cohort of patients with cytogenetically normal acute myeloid leukemia. Mol Cytogenet 2021; 14:45. [PMID: 34560908 PMCID: PMC8464159 DOI: 10.1186/s13039-021-00561-2] [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: 04/22/2021] [Accepted: 07/26/2021] [Indexed: 11/16/2022] Open
Abstract
Background Relapsed acute myeloid leukemia (AML) is associated with the acquisition of additional somatic mutations which are thought to drive phenotypic adaptability, clonal selection and evolution of leukemic clones during treatment. We performed high throughput exome sequencing of matched presentation and relapsed samples from 6 cytogenetically normal AML (CN-AML) patients treated with standard remission induction chemotherapy in order to contribute with the investigation of the mutational landscape of CN-AML and clonal evolution during AML treatment. Result A total of 24 and 32 somatic variants were identified in presentation and relapse samples respectively with an average of 4.0 variants per patient at presentation and 5.3 variants per patient at relapse, with SNVs being more frequent than indels at both disease stages. All patients have somatic variants in at least one gene that is frequently mutated in AML at both disease presentation and relapse, with most of these variants are classic AML and recurrent hotspot mutations including NPM1 p.W288fs, FLT3-ITD, NRAS p.G12D and IDH2 p.R140Q. In addition, we found two distinct clonal evolution patterns of relapse: (1) a leukemic clone at disease presentation acquires additional mutations and evolves into the relapse clone after the chemotherapy; (2) a leukemic clone at disease presentation persists at relapse without the addition of novel somatic mutations. Conclusions The findings of this study suggest that the relapse-initiating clones may pre-exist prior to therapy, which harbor or acquire mutations that confer selective advantage during chemotherapy, resulting in clonal expansion and eventually leading to relapse.
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Affiliation(s)
- Yuslina Mat Yusoff
- Hematology Unit, Cancer Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Selangor, Malaysia
| | - Fadly Ahid
- Centre for Medical Laboratory Technology Studies, Faculty of Health Sciences, Universiti Teknologi MARA, 42300, Puncak Alam, Selangor, Malaysia.
| | - Zahidah Abu Seman
- Hematology Unit, Cancer Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Selangor, Malaysia
| | - Julia Abdullah
- Hematology Unit, Cancer Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Selangor, Malaysia
| | - Nor Rizan Kamaluddin
- Hematology Unit, Cancer Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Selangor, Malaysia
| | - Ezalia Esa
- Hematology Unit, Cancer Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Selangor, Malaysia
| | - Zubaidah Zakaria
- Hematology Unit, Cancer Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health Malaysia, 40170, Shah Alam, Selangor, Malaysia
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5
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Esa E, Hashim AK, Mohamed EHM, Zakaria Z, Abu Hassan AN, Mat Yusoff Y, Kamaluddin NR, Abdul Rahman AZ, Chang KM, Mohamed R, Subbiah I, Jamian E, Ho CSL, Lim SM, Lau PC, Pung YF, Zain SM. Construction of a microRNA-mRNA Regulatory Network in De Novo Cytogenetically Normal Acute Myeloid Leukemia Patients. Genet Test Mol Biomarkers 2021; 25:199-210. [PMID: 33734890 DOI: 10.1089/gtmb.2020.0182] [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] [Indexed: 11/13/2022] Open
Abstract
Background: The association between dysregulated microRNAs (miRNAs) and acute myeloid leukemia (AML) is well known. However, our understanding of the regulatory role of miRNAs in the cytogenetically normal AML (CN-AML) subtype pathway is still poor. The current study integrated miRNA and mRNA profiles to explore novel miRNA-mRNA interactions that affect the regulatory patterns of de novo CN-AML. Methods: We utilized a multiplexed nanoString nCounter platform to profile both miRNAs and mRNAs using similar sets of patient samples (n = 24). Correlations were assessed, and an miRNA-mRNA network was constructed. The underlying biological functions of the mRNAs were predicted by gene enrichment. Finally, the interacting pairs were assessed using TargetScan and microT-CDS. We identified 637 significant negative correlations (false discovery rate <0.05). Results: Network analysis revealed a cluster of 12 miRNAs representing the majority of mRNA targets. Within the cluster, five miRNAs (miR-495-3p, miR-185-5p, let-7i-5p, miR-409-3p, and miR-127-3p) were posited to play a pivotal role in the regulation of CN-AML, as they are associated with the negative regulation of myeloid leukocyte differentiation, negative regulation of myeloid cell differentiation, and positive regulation of hematopoiesis. Conclusion: Three novel interactions in CN-AML were predicted as let-7i-5p:HOXA9, miR-495-3p:PIK3R1, and miR-495-3p:CDK6 may be responsible for regulating myeloid cell differentiation in CN-AML.
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Affiliation(s)
- Ezalia Esa
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, Kuala Lumpur, Malaysia
| | | | | | - Zubaidah Zakaria
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Alifah Nadia Abu Hassan
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, Kuala Lumpur, Malaysia
| | - Yuslina Mat Yusoff
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, Kuala Lumpur, Malaysia
| | - Nor Rizan Kamaluddin
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, Kuala Lumpur, Malaysia
| | - Ahmad Zuhairi Abdul Rahman
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, Kuala Lumpur, Malaysia
| | - Kian-Meng Chang
- Hospital Ampang, Jalan Mewah Utara, Pandan Mewah, Ampang, Malaysia
| | - Rashidah Mohamed
- Hospital Ampang, Jalan Mewah Utara, Pandan Mewah, Ampang, Malaysia
| | - Indhira Subbiah
- Hospital Sultanah Aminah, Bangunan Induk, Jalan Persiaran Abu Bakar Sultan, Johor Bahru, Malaysia
| | - Ehram Jamian
- Hospital Sultanah Aminah, Bangunan Induk, Jalan Persiaran Abu Bakar Sultan, Johor Bahru, Malaysia
| | - Caroline Siew-Ling Ho
- Hospital Sultanah Aminah, Bangunan Induk, Jalan Persiaran Abu Bakar Sultan, Johor Bahru, Malaysia
| | - Soo-Min Lim
- Hospital Sultanah Aminah, Bangunan Induk, Jalan Persiaran Abu Bakar Sultan, Johor Bahru, Malaysia
| | - Peng-Choon Lau
- Department of Surgery, Faculty of Medicine, University of Malaya, Lembah Pantai, Kuala Lumpur, Malaysia
| | - Yuh-Fen Pung
- Department of Biomedical Science, University of Nottingham, Semenyih, Malaysia
| | - Shamsul Mohd Zain
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
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Ting CY, Lee YF, Lim CJ, Ting RSK, Md Zahrin MM, Ahmad AS, Wong JSY, Arip M, Zakaria Z, Ahmad Zaidi Adruce S, Tnay JKS, Wong YS. Factors Associated with Intention to Donate Hematopoietic Stem Cells among Blood Donors. Transfus Med Hemother 2020; 48:188-195. [PMID: 34177425 DOI: 10.1159/000512197] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 09/02/2020] [Indexed: 11/19/2022] Open
Abstract
Introduction Past studies pay little attention to the intention to donate hematopoietic stem cells (HSC) among blood donors. This study investigated the level of and the influence of socio-demographic characteristics, knowledge, attitude, subjective norm and self-efficacy on the intention to donate HSC among blood donors. Methods This cross-sectional study recruited blood donors at selected public hospitals in the Malaysian State of Sarawak in 2019. A structured questionnaire was developed based on the review of relevant literature. It gathered information on socio-demographic characteristics, knowledge, attitude, subjective norm and self-efficacy on the intention to donate HSC. Variables with a p value <0.200 in bivariate analysis were included in the variable selection for regression modeling to examine their associations with the intention to donate HSC. Results A total of 569 blood donors participated (94.5% response rate). Overall, 87.1% reported a positive intention to donate HSC. In the regression model, the factor with the greatest association with intention to donate HSC was subjective norms about HSC donation (β = 0.35, 95% CI 0.27-0.42), followed by attitude about regulations of HSC donation (β= 0.21, 95% CI 0.13-0.35), self-efficacy on HSC donation (β = 0.15, 95% CI 0.09-0.32), attitude about the potential side effects of HSC donation (β = 0.14, 95% CI 0.02-0.10) and highest education level (β = 0.10, 95% CI 0.03-0.44). Conclusions The findings can be used to formulate a better strategy in promoting HSC donation among blood donors in the region.
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Affiliation(s)
- Chuo Yew Ting
- Pharmacy Practice and Development Division, Sarawak State Health Department, Ministry of Health, Kuching, Malaysia.,Institute of Borneo Studies, Universiti Malalysia Sarawak, Kota Samarahan, Malaysia
| | - Yew Fong Lee
- Institute of Global Health, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,Ministry of Health, Putrajaya, Malaysia
| | - Chien Joo Lim
- Clinical Research and Innovation Office, Tan Tock Seng Hospital, Singapore, Singapore
| | - Rachel Sing Kiat Ting
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University, Selangor, Malaysia
| | - Mohammad Masrin Md Zahrin
- Blood Transfusion Services and Blood Bank Department, Sarawak General Hospital, Ministry of Health, Kuching, Malaysia
| | - Abu Sufian Ahmad
- Blood Transfusion Services and Blood Bank Unit, Sibu Hospital, Ministry of Health, Sibu, Malaysia
| | | | - Masita Arip
- Institute for Medical Research, Ministry of Health, Kuala Lumpur, Malaysia
| | - Zubaidah Zakaria
- Institute for Medical Research, Ministry of Health, Kuala Lumpur, Malaysia
| | - Shahren Ahmad Zaidi Adruce
- Faculty of Cognitive Sciences and Human Development, Universiti Malalysia Sarawak, Kota Samarahan, Malaysia
| | - Jessie Koh Sing Tnay
- Institute of Borneo Studies, Universiti Malalysia Sarawak, Kota Samarahan, Malaysia
| | - Yi Shen Wong
- Blood Transfusion Services and Blood Bank Department, Sarawak General Hospital, Ministry of Health, Kuching, Malaysia
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Esa E, Hassan S, Yasin NM, Yusoff YM, Kamalludin NR, Zaini NZ, Ibrahim H, Zakaria Z. β-Thalassemia Intermedia Due to Coinheritance of Three Unique α-Globin Cluster Duplications. Hemoglobin 2020. [DOI: 10.1080/03630269.2020.1717038] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Ezalia Esa
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, National Institute of Health, Shah Alam, Malaysia
| | - Syahzuwan Hassan
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, National Institute of Health, Shah Alam, Malaysia
| | - Norafiza Mohd Yasin
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, National Institute of Health, Shah Alam, Malaysia
| | - Yuslina Mat Yusoff
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, National Institute of Health, Shah Alam, Malaysia
| | - Nor Rizan Kamalludin
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, National Institute of Health, Shah Alam, Malaysia
| | - Nurul Zawani Zaini
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, National Institute of Health, Shah Alam, Malaysia
| | - Hishamsah Ibrahim
- Paediatric Institute, Hospital Kuala Lumpur, Jalan Masjid Hospital, Kuala Lumpur, Malaysia
| | - Zubaidah Zakaria
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, National Institute of Health, Shah Alam, Malaysia
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8
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Hamid FSA, Yasin NM, Esa E, Yusoff YM, Sahid ENM, Hassan S, Omar SL, Bidin MB, Matnih V, Zakaria Z. Identification of a Novel α-Thalassemia Deletion: –(α)4.9 from a Current Multiplex Gap-Polymerase Chain Reaction. Hemoglobin 2020. [DOI: 10.1080/03630269.2020.1717140] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
| | - Norafiza Mohd Yasin
- Haematology Unit, Cancer Research Centre, Institute for Medical Research (IMR), Kuala Lumpur, Malaysia
| | - Ezalia Esa
- Haematology Unit, Cancer Research Centre, Institute for Medical Research (IMR), Kuala Lumpur, Malaysia
| | - Yuslina Mat Yusoff
- Haematology Unit, Cancer Research Centre, Institute for Medical Research (IMR), Kuala Lumpur, Malaysia
| | - Ermi Neiza Mohd Sahid
- Haematology Unit, Cancer Research Centre, Institute for Medical Research (IMR), Kuala Lumpur, Malaysia
| | - Syahzuwan Hassan
- Haematology Unit, Cancer Research Centre, Institute for Medical Research (IMR), Kuala Lumpur, Malaysia
| | - Syahira Lazira Omar
- Haematology Unit, Cancer Research Centre, Institute for Medical Research (IMR), Kuala Lumpur, Malaysia
| | - Mohd Bakri Bidin
- Haematology Unit, Cancer Research Centre, Institute for Medical Research (IMR), Kuala Lumpur, Malaysia
| | - Velintina Matnih
- Haematology Unit, Cancer Research Centre, Institute for Medical Research (IMR), Kuala Lumpur, Malaysia
| | - Zubaidah Zakaria
- Haematology Unit, Cancer Research Centre, Institute for Medical Research (IMR), Kuala Lumpur, Malaysia
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Yasin NM, Hamid FSA, Hassan S, Esa E, Yusoff YM, Sahid ENM, Zakaria Z. Discovery of New Deletional α-Thalassemia Mutations Detected by Multiplex Ligation-Dependent Probe Amplification. Hemoglobin 2020. [DOI: 10.1080/03630269.2020.1717080] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Norafiza Mohd Yasin
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Kuala Lumpur, Malaysia
| | | | - Syahzuwan Hassan
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Kuala Lumpur, Malaysia
| | - Ezalia Esa
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Kuala Lumpur, Malaysia
| | - Yuslina Mat Yusoff
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Kuala Lumpur, Malaysia
| | - Ermi Neiza Mohd Sahid
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Kuala Lumpur, Malaysia
| | - Zubaidah Zakaria
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Kuala Lumpur, Malaysia
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Hassan S, Yasin NM, Esa E, Hamid FSA, Yusoff YM, Zakaria Z. Coinheritance of δ-Thalassemia and a Heterozygous XmnI Polymorphism Mask the Diagnosis of Borderline Hb A2 β-Thalassemia: A Diagnostic Challenge. Hemoglobin 2020. [DOI: 10.1080/03630269.2020.1717724] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Syahzuwan Hassan
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Kuala Lumpur, Malaysia
| | - Norafiza Mohd Yasin
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Kuala Lumpur, Malaysia
| | - Ezalia Esa
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Kuala Lumpur, Malaysia
| | | | - Yuslina Mat Yusoff
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Kuala Lumpur, Malaysia
| | - Zubaidah Zakaria
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Kuala Lumpur, Malaysia
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Zakaria Z, Aziz MA, Ishak N, Suppiah S, Bradley D, Noor NM. Advanced thermoluminescence dosimetric characterization of fabricated Ge-Doped optical fibres (FGDOFs) for electron beams dosimetry. Radiat Phys Chem Oxf Engl 1993 2020. [DOI: 10.1016/j.radphyschem.2019.108487] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Zakaria Z, Bekbayeva L, Negim E. Effects of blended polyvinyl alcohol/urea on the growth, yield and chemical content of tomato (Lycopersicon esculentum L. Mill). ijbch 2020. [DOI: 10.26577/ijbch.2020.v13.i2.08] [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: 11/03/2022]
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13
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Zakaria Z, Alahnomi RA, Mohd Yussof Z, Alhegazi A, Mohd Bahar AA, Abd Rahman N. Contracted Microwave T-resonator for Permittivity Sensing Applications. 2019 IEEE Asia-Pacific Conference on Applied Electromagnetics (APACE) 2019. [DOI: 10.1109/apace47377.2019.9021062] [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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Zakaria Z, Zulkifle MF, Wan Hasan WAN, Azhari AK, Abdul Raub SH, Eswaran J, Soundararajan M, Syed Husain SNA. Epidermal growth factor receptor ( EGFR) gene alteration and protein overexpression in Malaysian triple-negative breast cancer (TNBC) cohort. Onco Targets Ther 2019; 12:7749-7756. [PMID: 31571924 PMCID: PMC6759283 DOI: 10.2147/ott.s214611] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 05/16/2019] [Accepted: 07/18/2019] [Indexed: 12/24/2022] Open
Abstract
Background Epidermal growth factor receptor (EGFR) is a member of the ErbB family of tyrosine kinase receptor proteins that plays important roles in tumour cell survival and proliferation. EGFR has been reported to be overexpressed in up to 78% of triple-negative breast cancer (TNBC) cases suggesting it as a potential therapeutic target. The clinical trials of anti-EGFR agents in breast cancer showed low response rates. However, a subgroup of patients demonstrated response to EGFR inhibitors highlighting the necessity to stratify patients, who might benefit from effective combination therapy that could include anti EGFR-agents. Population variability in EGFR expression warrants systematic evaluation in specific populations. Purpose To study EGFR alterations and expressions in a multi ethnic Malaysian TNBC patient cohort to determine the possibility of using anti-EGFR combinatorial therapy for this population. Patients and methods In this study, we evaluated 58 cases of Malaysian TNBC patient samples for EGFR gene copy number alteration and EGFR protein overexpression using fluorescence in-situ hybridization (FISH) and immunohistochemistry (IHC) methods, respectively. Results EGFR protein overexpression was observed in about 30% while 15.5% displayed high EGFR copy number including 5.17% gene amplification and over 10% high polysomy. There is a positive correlation between EGFR protein overexpression and gene copy number and over expression of EGFR is observed in ten out of the 48 low copy number cases (20.9%) without gene amplification. Conclusion This study provides the first glimpse of EGFR alterations and expressions in a multi ethnic Malaysian TNBC patient cohort emphasising the need for the nationwide large scale EGFR expression evaluation in Malaysia.
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Affiliation(s)
- Zubaidah Zakaria
- Cancer Research Centre (CaRC), Institute for Medical Research (IMR), National Institutes of Health (NIH), Ministry of Health (MOH), Setia Alam, Shah Alam 40170, Selangor Darul Ehsan, Malaysia
| | - Muhamad Farid Zulkifle
- Cancer Research Centre (CaRC), Institute for Medical Research (IMR), National Institutes of Health (NIH), Ministry of Health (MOH), Setia Alam, Shah Alam 40170, Selangor Darul Ehsan, Malaysia.,Department of Pathology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre (UKMMC), Cheras, Kuala Lumpur 56000, Malaysia.,Nutrition, Metabolism and Cardiovascular Research Centre (NMCRC), Institute for Medical Research (IMR), National Institutes of Health (NIH), Ministry of Health (MOH), Setia Alam, 40170 Shah Alam, Selangor Darul Ehsan, Malaysia
| | - Wan Atiqah Najiah Wan Hasan
- Cancer Research Centre (CaRC), Institute for Medical Research (IMR), National Institutes of Health (NIH), Ministry of Health (MOH), Setia Alam, Shah Alam 40170, Selangor Darul Ehsan, Malaysia
| | - Azlah Kamilah Azhari
- Department of Pathology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre (UKMMC), Cheras, Kuala Lumpur 56000, Malaysia.,Reference Specialised Laboratory, Pantai Premier Pathology Sdn. Bhd., Kuala Lumpur 59100, Malaysia
| | - Sayyidi Hamzi Abdul Raub
- Department of Pathology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre (UKMMC), Cheras, Kuala Lumpur 56000, Malaysia.,Reference Specialised Laboratory, Pantai Premier Pathology Sdn. Bhd., Kuala Lumpur 59100, Malaysia
| | - Jeyanthy Eswaran
- Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, NE1 7RU, UK.,Newcastle University Medicine Malaysia, Gelang Patah, Johor 79200, Malaysia
| | - Meera Soundararajan
- Department of Applied Sciences, Faculty of Health and Life Sciences, Northumbria University, Newcastle-upon-Tyne NE1 8ST, UK
| | - Sharifah Noor Akmal Syed Husain
- Department of Pathology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre (UKMMC), Cheras, Kuala Lumpur 56000, Malaysia.,Reference Specialised Laboratory, Pantai Premier Pathology Sdn. Bhd., Kuala Lumpur 59100, Malaysia
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Fakiruddin KS, Lim MN, Nordin N, Rosli R, Zakaria Z, Abdullah S. Targeting of CD133+ Cancer Stem Cells by Mesenchymal Stem Cell Expressing TRAIL Reveals a Prospective Role of Apoptotic Gene Regulation in Non-Small Cell Lung Cancer. Cancers (Basel) 2019; 11:cancers11091261. [PMID: 31466290 PMCID: PMC6770521 DOI: 10.3390/cancers11091261] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [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: 06/21/2019] [Revised: 08/05/2019] [Accepted: 08/06/2019] [Indexed: 02/07/2023] Open
Abstract
Mesenchymal stem cells (MSCs) are emerging as vehicles for anti-tumor cytotherapy; however, investigation on its efficacy to target a specific cancer stem cell (CSC) population in non-small cell lung cancer (NSCLC) is lacking. Using assays to evaluate cell proliferation, apoptosis, and gene expression, we investigated the efficacy of MSCs expressing tumour necrosis factor (TNF)-related apoptosis inducing ligand (MSC-TRAIL) to target and destroy CD133+ (prominin-1 positive) NSCLC-derived CSCs. Characterization of TRAIL death receptor 5 (DR5) revealed that it was highly expressed in the CD133+ CSCs of both H460 and H2170 cell lines. The human MSC-TRAIL generated in the study maintained its multipotent characteristics, and caused significant tumor cell inhibition in NSCLC-derived CSCs in a co-culture. The MSC-TRAIL induced an increase in annexin V expression, an indicator of apoptosis in H460 and H2170 derived CD133+ CSCs. Through investigation of mitochondria membrane potential, we found that MSC-TRAIL was capable of inducing intrinsic apoptosis to the CSCs. Using pathway-specific gene expression profiling, we uncovered candidate genes such as NFKB1, BAG3, MCL1, GADD45A, and HRK in CD133+ CSCs, which, if targeted, might increase the sensitivity of NSCLC to MSC-TRAIL-mediated inhibition. As such, our findings add credibility to the utilization of MSC-TRAIL for the treatment of NSCLC through targeting of CD133+ CSCs.
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Affiliation(s)
- Kamal Shaik Fakiruddin
- UPM-MAKNA Cancer Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Selangor 43400, Malaysia.
- Haematology Unit, Cancer Research Centre, Institute for Medical Research (IMR), National Institutes of Health (NIH), Ministry of Health Malaysia, Shah Alam 40170, Malaysia.
| | - Moon Nian Lim
- Haematology Unit, Cancer Research Centre, Institute for Medical Research (IMR), National Institutes of Health (NIH), Ministry of Health Malaysia, Shah Alam 40170, Malaysia
| | - Norshariza Nordin
- Medical Genetics Laboratory, Department of Biomedical Sciences, Faculty of Medicine & Health Sciences, Universiti Putra Malaysia, Selangor 43400, Malaysia
- Genetics and Regenerative Medicine Research Centre, Faculty of Medicine & Health Sciences, Universiti Putra Malaysia, Selangor 43400, Malaysia
| | - Rozita Rosli
- UPM-MAKNA Cancer Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Selangor 43400, Malaysia
- Medical Genetics Laboratory, Department of Biomedical Sciences, Faculty of Medicine & Health Sciences, Universiti Putra Malaysia, Selangor 43400, Malaysia
- Genetics and Regenerative Medicine Research Centre, Faculty of Medicine & Health Sciences, Universiti Putra Malaysia, Selangor 43400, Malaysia
| | - Zubaidah Zakaria
- Haematology Unit, Cancer Research Centre, Institute for Medical Research (IMR), National Institutes of Health (NIH), Ministry of Health Malaysia, Shah Alam 40170, Malaysia
| | - Syahril Abdullah
- UPM-MAKNA Cancer Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Selangor 43400, Malaysia
- Medical Genetics Laboratory, Department of Biomedical Sciences, Faculty of Medicine & Health Sciences, Universiti Putra Malaysia, Selangor 43400, Malaysia
- Genetics and Regenerative Medicine Research Centre, Faculty of Medicine & Health Sciences, Universiti Putra Malaysia, Selangor 43400, Malaysia
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16
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17
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Mat Yusoff Y, Abu Seman Z, Othman N, Kamaluddin NR, Esa E, Zulkiply NA, Abdullah J, Zakaria Z. Identification of FLT3 and NPM1 Mutations in Patients with Acute Myeloid Leukaemia. Asian Pac J Cancer Prev 2019; 20:1749-1755. [PMID: 31244296 PMCID: PMC7021611 DOI: 10.31557/apjcp.2019.20.6.1749] [Citation(s) in RCA: 4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Indexed: 11/25/2022] Open
Abstract
Objective: The most frequent acquired molecular abnormalities and important prognostic indicators in patients with Acute Myeloid Leukaemia (AML) are fms-like tyrosine kinase-3 gene (FLT3) and nucleophosmin-1 (NPM1) mutations. Our study aims to develop a cost effective and comprehensive in-house conventional PCR method for detection of FLT3-ITD, FLT3-D835 and NPM1 mutations and to evaluate the frequency of these mutations in patients with cytogenetically normal (CN) AML in our population. Methods: A total of 199 samples from AML patients (95 women, 104 men) were included in the study. Mutation analyses were performed using polymerase chain reaction (PCR) and gene sequencing. Result: Sixty-eight patients were positive for the mutations. FLT3-ITD mutations were detected in 32 patients (16.1%), followed by FLT3-D835 in 5 (2.5%) and NPM1 in 54 (27.1%). Double mutations of NPM1 and FLT3-ITD were detected in 23 cases (11.6%). Assays validation were performed using Sanger sequencing and showed 100% concordance with in house method. Conclusion: The optimized in-house PCR assays for the detection of FLT3-ITD, FLT3-D835 and NPM1 mutations in AML patients were robust, less labour intensive and cost effective. These assays can be used as diagnostic tools for mutation detection in AML patients since identification of these mutations are important for prognostication and optimization of patient care.
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Affiliation(s)
- Yuslina Mat Yusoff
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, 50588, Wilayah Persekutuan Kuala Lumpur, Malaysia.
| | - Zahidah Abu Seman
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, 50588, Wilayah Persekutuan Kuala Lumpur, Malaysia.
| | - Norodiyah Othman
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, 50588, Wilayah Persekutuan Kuala Lumpur, Malaysia.
| | - Nor Rizan Kamaluddin
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, 50588, Wilayah Persekutuan Kuala Lumpur, Malaysia.
| | - Ezalia Esa
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, 50588, Wilayah Persekutuan Kuala Lumpur, Malaysia.
| | - Nor Amalina Zulkiply
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, 50588, Wilayah Persekutuan Kuala Lumpur, Malaysia.
| | - Julia Abdullah
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, 50588, Wilayah Persekutuan Kuala Lumpur, Malaysia.
| | - Zubaidah Zakaria
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, 50588, Wilayah Persekutuan Kuala Lumpur, Malaysia.
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18
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Zakaria Z, Mohamad M, Noh Abd Majid M, Ulfa Abdul Aziz N, Mat Rashid K. The Mediating Effect of Job Satisfaction on Employee Loyalty: A Case Study of a Developer Company in Malaysia. KSS 2019; 3:1018. [DOI: 10.18502/kss.v3i13.4264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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19
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Zakaria KN, Amid A, Zakaria Z, Jamal P, Ismail A. Anti-Proliferative Activity of Triterpenes Isolated from Clinicanthus nutans on Hep-G2 Liver Cancer Cells. Asian Pac J Cancer Prev 2019; 20:563-567. [PMID: 30803221 PMCID: PMC6897039 DOI: 10.31557/apjcp.2019.20.2.563] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 07/24/2018] [Accepted: 12/31/2019] [Indexed: 11/26/2022] Open
Abstract
Problem statement: Clinicanthus nutans has been used by Malaysian since long time ago. It is used to treat many diseases including cancer. Many studies carried out on its crude extract but no clear report on the specific secondary metabolites responsible for its nature in treating selected diseases. Objective: This study aims to confirm the practice carried out by many people on the usage of Clinicanthus nutans in treating cancer. Methods: C. nutans leaves were extracted by methanol. Thin layer chromatography was used to identify the suitable solvent for fractions separation. The fractions were then separated at larger volume using gravity column chromatography. Each fraction was tested on its anti-proliferative activity on Hep-G2 liver cancer cells by MTT assay. The phytochemical screening was carried out to identify the bioactive compound based on qualitative analysis. Results: The fraction 2 (F2) of C. nutans showed the lowest IC50 value of 1.73 μg/ml against Hep-G2 cancer cells, and it is identified as triterpenes. Conclusion: The fraction F2 identified as triterpenes isolated from C. nutans has potential as an anti-proliferative agent against liver cancer.
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Affiliation(s)
- Khairun Najwa Zakaria
- Department of Biotechnology Engineering, Faculty of Engineering, International Islamic University Malaysia, Kuala Lumpur, Malaysia.
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20
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Zakaria Z, Kamarudin SK, Timmiati SN. Influence of Graphene Oxide on the Ethanol Permeability and Ionic Conductivity of QPVA-Based Membrane in Passive Alkaline Direct Ethanol Fuel Cells. Nanoscale Res Lett 2019; 14:28. [PMID: 30659414 PMCID: PMC6338673 DOI: 10.1186/s11671-018-2836-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 12/13/2018] [Indexed: 05/31/2023]
Abstract
Passive alkaline-direct ethanol fuel cells (alkaline-DEFCs) appear to be suitable for producing sustainable energy for portable devices. However, ethanol crossover is a major challenge for passive alkaline-DEFC systems. This study investigated the performance of a crosslinked quaternized poly (vinyl alcohol)/graphene oxide (QPVA/GO) composite membrane to reduce ethanol permeability, leading in enhancement of passive alkaline-DEFC performance. The chemical and physical structure, morphology, ethanol uptake and permeability, ion exchange capacity, water uptake, and ionic conductivity of the composite membranes were characterized and measured to evaluate their applicability in fuel cells. The transport properties of the membrane were affected by GO loading, with an optimal loading of 15 wt.% and doped with 1 M of KOH showing the lowest ethanol permeability (1.49 × 10-7 cm2 s-1 and 3.65 × 10-7 cm2 s-1 at 30 °C and 60 °C, respectively) and the highest ionic conductivity (1.74 × 10-2 S cm-1 and 6.24 × 10-2 S cm-1 at 30 °C and 60 °C, respectively). In the passive alkaline-DEFCs, the maximum power density was 9.1 mW cm-2, which is higher than commercial Nafion 117/KOH (7.68 mW cm-2) at 30 °C with a 2 M ethanol + 2 M KOH solution. For the 60 °C, the maximum power density of composite membrane achieved was 11.4 mW cm-2.
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Affiliation(s)
- Z. Zakaria
- Fuel Cell Institute, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor Malaysia
| | - S. K. Kamarudin
- Fuel Cell Institute, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor Malaysia
- Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor Malaysia
| | - S. N. Timmiati
- Fuel Cell Institute, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor Malaysia
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21
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Zakaria Z, Kamarudin SK. Performance of quaternized poly(vinyl alcohol)‐based electrolyte membrane in passive alkaline DEFCs application: RSM optimization approach. J Appl Polym Sci 2019. [DOI: 10.1002/app.47526] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Z. Zakaria
- Fuel Cell InstituteUniversiti Kebangsaan Malaysia (UKM) 43600 Bangi Selangor Malaysia
| | - S. K. Kamarudin
- Fuel Cell InstituteUniversiti Kebangsaan Malaysia (UKM) 43600 Bangi Selangor Malaysia
- Department of Chemical and Process Engineering, Faculty of Engineering and Built EnvironmentUniversiti Kebangsaan Malaysia (UKM) 43600 Bangi Selangor Malaysia
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Abd Aziz M, Zakaria Z, Ibrahim M, Idroas M. Imaging of pipeline irregularities using a PIG system based on reflection mode ultrasonic sensors. IJOGCT 2019; 20:212. [DOI: 10.1504/ijogct.2019.10018663] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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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23
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Inelova Z, Nesterova S, Zakaria Z, Zaparina Y, Sayakhmet A. Systematic analysis of flora of Atyrau city. ijbch 2019. [DOI: 10.26577/ijbch-2019-v2-3] [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: 11/03/2022]
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24
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Inelova Z, Nesterova S, Zakaria Z, Zaparina Y, Sayakhmet A. Systematic analysis of flora of Atyrau city. Int j biol chem 2019. [DOI: 10.26577/ijbch-2019-i2-3] [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: 11/03/2022]
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25
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Idroas M, Aziz MA, Zakaria Z, Ibrahim M. Imaging of pipeline irregularities using a PIG system based on reflection mode ultrasonic sensors. IJOGCT 2019; 20:212. [DOI: 10.1504/ijogct.2019.097449] [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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26
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Mat Yusoff Y, Abu Seman Z, Othman N, Kamaluddin NR, Esa E, Zulkiply NA, Abdullah J, Zakaria Z. Prevalence of BCR-ABL T315I Mutation in Malaysian Patients with Imatinib-Resistant Chronic Myeloid Leukemia. Asian Pac J Cancer Prev 2018; 19:3317-3320. [PMID: 30583336 PMCID: PMC6428553 DOI: 10.31557/apjcp.2018.19.12.3317] [Citation(s) in RCA: 5] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Objective: Chronic Myeloid Leukemia (CML) is caused by a reciprocal translocation between chromosomes 9 and 22, t(9;22) (q34;q11) which encodes for the BCR-ABL fusion protein. Discovery of Imatinib Mesylate (IM) as first line therapy has brought tremendous improvement in the management of CML. However, emergence of point mutations within the BCR-ABL gene particularly T315I mutation, affects a common BCR-ABL kinase contact residue which impairs drug binding thus contribute to treatment resistance. This study aims to investigate the BCR-ABL T315I mutation in Malaysian patients with CML. Methods: A total of 285 patients diagnosed with CML were included in this study. Mutation detection was performed using qualitative real-time PCR (qPCR). Results: Fifteen out of 285 samples (5.26%) were positive for T315I mutations after amplification with real-time PCR assay. From the total number of positive samples, six patients were in accelerated phase (AP), four in chronic phase (CP) and five in blast crisis (BC). Conclusion: Mutation testing is recommended for choosing various tyrosine kinase inhibitors (TKIs) to optimize outcomes for both cases of treatment failure or suboptimal response to imatinib. Therefore, detection of T315I mutation in CML patients are clinically useful in the selection of appropriate treatment strategies to prevent disease progression.
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Affiliation(s)
- Yuslina Mat Yusoff
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, Wilayah Persekutuan Kuala Lumpur, Malaysia.
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27
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Patmanathan SN, Gnanasegaran N, Lim MN, Husaini R, Fakiruddin KS, Zakaria Z. CRISPR/Cas9 in Stem Cell Research: Current Application and Future Perspective. Curr Stem Cell Res Ther 2018; 13:632-644. [PMID: 29895256 DOI: 10.2174/1574888x13666180613081443] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 02/27/2018] [Revised: 06/04/2018] [Accepted: 06/08/2018] [Indexed: 11/22/2022]
Abstract
The clustered regularly interspaced short palindromic repeats-associated protein 9 or CRISPR/Cas9 system is one of the hottest topics discussed lately due to its robustness and effectiveness in genome editing. The technology has been widely used in life science research including microbial, plant, animal, and human cell studies. Combined with the pluripotency of stem cells, the technology represents a powerful tool to generate various cell types for disease modeling, drug screening, toxicology, and targeted therapies. Generally, the CRISPR/Cas9 system has been applied in genetic modification of pluripotent or multipotent stem cells, after which the cells are differentiated into specific cell types and used for functional analysis or even clinical transplantation. Recent advancement in CRISPR/Cas9 technology has widened the scope of stem cell research and its therapeutic application. This review provides an overview of the current application and the prospect of CRISPR/Cas9 technology, particularly in stem cell research and therapy.
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Affiliation(s)
- Sathya Narayanan Patmanathan
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Pahang Road, 50588 Kuala Lumpur, Malaysia
| | - Nareshwaran Gnanasegaran
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Moon Nian Lim
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Pahang Road, 50588 Kuala Lumpur, Malaysia
| | - Roslina Husaini
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Pahang Road, 50588 Kuala Lumpur, Malaysia
| | - Kamal Shaik Fakiruddin
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Pahang Road, 50588 Kuala Lumpur, Malaysia
| | - Zubaidah Zakaria
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Pahang Road, 50588 Kuala Lumpur, Malaysia
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Nornikman H, Ahmad BH, Zakaria Z, Abd Aziz MZA, Ismail MK, Siang CS. Tri-polarized Patch Antenna with X-Shaped Element for Wireless LAN MIMO System. 2018 IEEE International RF and Microwave Conference (RFM) 2018. [DOI: 10.1109/rfm.2018.8846472] [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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29
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Nornikman H, Ahmad BH, Zakaria Z, S Ramlee NE, Abd Aziz MZA, Ismail MK. Multiband Minkowski Fractal Patch Antenna with Rhombic SRR for Wireless LAN and WiMAX Applications. 2018 IEEE International RF and Microwave Conference (RFM) 2018. [DOI: 10.1109/rfm.2018.8846542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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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30
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Hambali IU, Abdullah FFJB, Bhutto KR, Mohd Azmi ML, Wahid AH, Zakaria Z, Odhah MN, Arsalan M, Muhammad NA, Jefri MN. Periodic vicissitudes of different concentrations of a developed prototype killed S. aureus mastitis vaccine on immune modulators, mediators and immunoglobulins in cows. Trop Anim Health Prod 2018; 51:781-789. [PMID: 30449009 DOI: 10.1007/s11250-018-1755-8] [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] [Received: 08/24/2018] [Accepted: 11/11/2018] [Indexed: 11/24/2022]
Abstract
Mastitis is the inflammation of the mammary gland due to microbial infiltration causing a reduced mammary function. This study aims at developing a vaccine using Malaysian local isolate of Staphylococcus aureus and evaluating serum amyloid A, Interleukin-10, IgM and IgG responses periodically. Four bacterin concentrations (106, 107, 108 and 109 cfu/ml of the local isolate of S. aureus) were adjuvanted with aluminium potassium sulphate. Thirty cows grouped into 4 treatment groups (G-) were vaccinated (2 ml) intramuscularly, with a fifth G-A as control. The mean concentration (MC) of serum amyloid A (SAA) was significantly different (sig-d) (p ˂ 0.05) in G-D at 0 h post vaccination (PV), 3 h PV, 24 h PV, weeks 1, 2, 3 and 4 PV (6-, 15-, 5-, 12-, 11-, 4- and 11-fold increased (FI) respectively). The MC of serum amyloid A was also sig-d in G-E at 0 h PV, weeks 1, 2 and 4 PV (3, 8, 5 and 8 FI respectively). The MC of IL-10 was sig-d in G-D and C at 3 h PV and week 2 PV (5 and 2 FI respectively). The IgM MC was sig-d in G-B and C at 3 h PV (5 and 6 FI respectively), at 24 h PV (5 and 9 FI respectively), at week 3 PV(2 and 2 FI respectively) and week 4 PV (3 and 4 FI respectively). The MC of IgG was sig-d in G-E at 0 h, 3 h and week 3 PV(5, 6 and 2 FI respectively) and in G-D at weeks 1-4 (3, 3, 3 and 5 FI respectively). In conclusion, elevated levels of SAA, IgG and IL-10 in G-D(108) informed our choice of best dosage which can be used to evoke immunity in cows.
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Affiliation(s)
- Idris Umar Hambali
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia. .,Department of Veterinary Public health and Preventive Medicine, University of Maiduguri, Maiduguri, 600233, Nigeria.
| | - Faez Firdaus Jesse Bin Abdullah
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia. .,Research Centre for Ruminant Disease, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia. .,Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
| | - K R Bhutto
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.,Directorate of Veterinary Research and Diagnosis, Livestock and Fisheries Department, Sindh, 70050, Pakistan
| | - M L Mohd Azmi
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - A H Wahid
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Z Zakaria
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - M N Odhah
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.,Department of Veterinary Medicine, Faculty of Agriculture and Veterinary Medicine, Thamar University, 39, Dhamar, Yemen
| | - M Arsalan
- Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.,Directorate of Animal Health, Livestock and Dairy Development Department Baluchistan, Lahore, 87300, Pakistan
| | - N A Muhammad
- Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.,Department of Clinical Medicine and Surgery, University of Veterinary and Animal Science Lahore, Lahore, 54500, Pakistan
| | - M N Jefri
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
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Yusuf A, Rahman A, Zakaria Z, Wahab Z, Kumar S. Assessment of variability pattern of flesh color in ‘Harumanis’ mango (Mangifera indica L.) from diverse Perlis geographical origin. Food Res 2018. [DOI: 10.26656/fr.2017.2(6).108] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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32
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Subramanian GC, Mat Yusoff Y, Esa E, Zakaria Z, Ponnampalam SN. Recombinant human growth hormone: a medical miracle or cause for concern? ACTA ACUST UNITED AC 2018. [DOI: 10.30574/gscbps.2018.5.1.0090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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33
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Zakaria Z, Kamarudin SK, Timmiati SN, Masdar MS. New composite membrane poly(vinyl alcohol)/graphene oxide for direct ethanol-proton exchange membrane fuel cell. J Appl Polym Sci 2018. [DOI: 10.1002/app.46928] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Z. Zakaria
- Fuel Cell Institute; Universiti Kebangsaan Malaysia; 43600 UKM Bangi Selangor Malaysia
| | - S. K. Kamarudin
- Fuel Cell Institute; Universiti Kebangsaan Malaysia; 43600 UKM Bangi Selangor Malaysia
- Department of Chemical and Process Engineering; Universiti Kebangsaan Malaysia; 43600 UKM Bangi Selangor Malaysia
| | - S. N. Timmiati
- Fuel Cell Institute; Universiti Kebangsaan Malaysia; 43600 UKM Bangi Selangor Malaysia
| | - M. S. Masdar
- Fuel Cell Institute; Universiti Kebangsaan Malaysia; 43600 UKM Bangi Selangor Malaysia
- Department of Chemical and Process Engineering; Universiti Kebangsaan Malaysia; 43600 UKM Bangi Selangor Malaysia
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Islam M, Mohamed EH, Esa E, Kamaluddin NR, Zain SM, Yusoff Y, Assenov Y, Mohamed Z, Zakaria Z. Abstract B86: Circulating cytokines, chemokines, and small molecules follow distinct expression patterns in acute myeloid leukemia. Cancer Immunol Res 2018. [DOI: 10.1158/2326-6074.tumimm17-b86] [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] [Indexed: 11/16/2022]
Abstract
Abstract
Acute myeloid leukemia (AML) is a heterogeneous disease with a complex interplay of genetic and/or cytogenetic alterations in hematopoietic progenitors, together with aberrant cytokines, chemokines, and small molecules (analytes) expression in the tumor microenvironment, contribute to AML pathogenesis. Although deregulated analytes are well documented in AML, their co-expression patterns are not yet identified. The baseline of circulating analytes in AML is found to be significantly variable between studies. Also, plasma baselines for some analytes that are biomarkers for other cancers have not been previously reported in AML. We hypothesized that comprehensive profiling of plasma analytes would provide greater insight of baselines variability and co-expression signature compared with individual analyses, potentially leading to the identification of novel diagnostic biomarkers and therapeutic targets in AML. Two sets of analytes were selected for this study: (i) 22 reported-analytes (baselines have been previously reported in AML) and (ii) 10 novel-analytes (baselines have not been previously reported in AML). We used multiplex array technology to simultaneously detect and quantify 32 plasma analytes levels in 38 patients (cases= 19, controls=19). We observed that baseline expression ranges are higher for three analytes (FGF2, MPO, and sFas) and lower for two analytes (SCF and sFasL) compared to previously published reports. In our study, 16 analytes are found to be significantly deregulated (13 higher, 3 lower, Mann-Whitney U-test, p-value <0.005) where 5 of them have never been reported before in AML. We predicted a 7-analytes containing multiplex panel (Cathepsin D, Ferritin, MIF, Galectin-3, HGF, MPO, and IL8) for diagnosis of AML, among them, MIF could be a possible therapeutic target. In addition, we observed that circulating analytes show co-expression signatures, that lead us to speculate that expression signatures have the potential to be used for subclassification of AML, complementing cytogenetic, genetic, and epigenetic information. In conclusion, circulating analytes expression in AML differs from normal, and follow distinct expression patterns.
Note: This abstract was not presented at the conference.
Citation Format: Mirazul Islam, Elsa Haniffah Mohamed, Ezalia Esa, Nor Rizan Kamaluddin, Shamsul Mohd Zain, Yuslina Yusoff, Yassen Assenov, Zahurin Mohamed, Zubaidah Zakaria. Circulating cytokines, chemokines, and small molecules follow distinct expression patterns in acute myeloid leukemia [abstract]. In: Proceedings of the AACR Special Conference on Tumor Immunology and Immunotherapy; 2017 Oct 1-4; Boston, MA. Philadelphia (PA): AACR; Cancer Immunol Res 2018;6(9 Suppl):Abstract nr B86.
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Affiliation(s)
| | | | - Ezalia Esa
- 3Institute for Medical Research, Kuala Lumpur, Malaysia,
| | | | | | - Yuslina Yusoff
- 3Institute for Medical Research, Kuala Lumpur, Malaysia,
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Hambali IU, Bhutto KR, Jesse FFA, Lawan A, Odhah MN, Wahid AH, Azmi MLM, Zakaria Z, Arsalan M, Muhammad NA, Jefri MN. Clinical responses in cows vaccinated with a developed prototype killed Staphylococcus aureus mastitis vaccine. Microb Pathog 2018; 124:101-105. [PMID: 30114463 DOI: 10.1016/j.micpath.2018.08.017] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 08/08/2018] [Accepted: 08/13/2018] [Indexed: 11/30/2022]
Abstract
Mastitis is an inflammatory condition of the udder that occurs as a result of the release of leucocytes into the udder in a response to bacterial invasion. The major causes of mastitis are an array of gram positive and negative bacteria, however, algae, virus, fungi, mechanical or thermal injury to the gland have also been identified as possible causes. Mastitis vaccines are yet to be developed using Malaysian local isolate of bacteria. The objective of the present experimental trial was to develop a monovalent vaccine against mastitis using S. aureus of Malaysian isolate and to evaluate the clinical responses such as temperature, respiratory rates and heart rates in vaccinated cows. S. aureus is a major causative bacteria in clinical and subclinical types of mastitis in cows. Four concentrations of the bacterin (106, 107, 108 and 109 cfu/ml of the local isolate of S. aureus) were prepared using Aluminium potassium sulfate adjuvant. Thirty cows were grouped into four treatment groups (B, C, D and E) with a fifth group as control (A). These groups were vaccinated intramuscularly(IM) with the prepared monovalent vaccine and its influence on the vital signs were intermittently measured. The mean of rectal temperature was significantly different (p˂ 0.05) at 0hr Post Vaccination [1]" in groups D and E (39.5 ± 0.15 °C and 39.4 ± 0.15 °C respectively) and at 3 h PV in groups C, D and E (39.8 ± 0.14 °C, 39.9 ± 0.14 °C and 40.3 ± 0.14 °C respectively) compared to the control group. This indicated a sharp increased rectal temperatures between 0hr and 3 h PV in groups C, D and E which later declined at 24 h PV. The mean of rectal temperature of group E was significantly different (p˂ 0.05) at weeks 1 and 2 PV (39.87 ± 0.19 °C and 39.80 ± 0.18 °C respectively) compared to the control group. The mean of heart rate was significantly different (p˂ 0.05) at week 1 PV in groups D and E (83.0 ± 3.8 beats/minute and 80.0 ± 3.8 °C respectively) compared to control. A trending decrease was however observed in heart rates of group E from weeks through 4 PV and in group D from weeks 1 through 3 PV. The mean of respiratory rates was significantly different (p˂ 0.05) at week 3 PV in group B and D (31.0 ± 1.2 breaths/minute and 28.0 ± 1.2 breaths/minute) compared to control. In conclusion, this study highlights responses of these vital signs due to vaccination against S. aureus causing mastitis in cows. To the best of our knowledge the findings of this study adds value to the shallow literature on vital signs alterations in cows vaccinated against mastitis as elevated levels of temperature and heart rates of group D and E indicated obvious response.
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Affiliation(s)
- I U Hambali
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; Department of Veterinary Public health and Preventive Medicine, University of Maiduguri, 600233, Nigeria.
| | - K R Bhutto
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; Directorate of Veterinary Research and Diagnosis, Livestock and Fisheries Department, 70050, Sindh, Pakistan
| | - F F A Jesse
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; Research Centre for Ruminant Disease, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
| | - A Lawan
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Maiduguri, 600233, Nigeria
| | - M N Odhah
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; Department of Veterinary Medicine, Faculty of Agriculture and Veterinary Medicine, Thamar University, 39, Yemen
| | - A H Wahid
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - M L Mohd Azmi
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Z Zakaria
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - M Arsalan
- Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; Directorate of Animal Health, Livestock and Dairy Development Department Baluchistan, 87300, Pakistan
| | - N A Muhammad
- Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; Department of Clinical Medicine and Surgery, University of Veterinary and Animal Science Lahore, 54500, Pakistan
| | - M N Jefri
- Department of Veterinary Clinical Studies, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
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Bahar AAM, Zakaria Z, Isa AAM, Alahnomi RA, Rahman NA. Complex Permittivity Measurement Based on Planar Microfluidic Resonator Sensor. 2018 18th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM) 2018. [DOI: 10.1109/antem.2018.8572934] [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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Fakiruddin KS, Ghazalli N, Lim MN, Zakaria Z, Abdullah S. Mesenchymal Stem Cell Expressing TRAIL as Targeted Therapy against Sensitised Tumour. Int J Mol Sci 2018; 19:ijms19082188. [PMID: 30060445 PMCID: PMC6121609 DOI: 10.3390/ijms19082188] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [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: 06/13/2018] [Revised: 06/30/2018] [Accepted: 07/02/2018] [Indexed: 02/06/2023] Open
Abstract
Tapping into the ability of engineered mesenchymal stem cells (MSCs) to mobilise into the tumour has expanded the scope of cancer treatment. Engineered MSCs expressing tumour necrosis factor (TNF)-related apoptosis inducing ligand (MSC-TRAIL) could serve as a platform for an efficient and targeted form of therapy. However, the presence of cancer stem cells (CSCs) that are resistant to TRAIL and apoptosis may represent a challenge for effective treatment. Nonetheless, with the discovery of small molecular inhibitors that could target CSCs and tumour signalling pathways, a higher efficacy of MSC-TRAIL mediated tumour inhibition can be achieved. This might pave the way for a more effective form of combined therapy, which leads to a better treatment outcome. In this review, we first discuss the tumour-homing capacity of MSCs, its effect in tumour tropism, the different approach behind genetically-engineered MSCs, and the efficacy and safety of each agent delivered by these MSCs. Then, we focus on how sensitisation of CSCs and tumours using small molecular inhibitors can increase the effect of these cells to either TRAIL or MSC-TRAIL mediated inhibition. In the conclusion, we address a few questions and safety concerns regarding the utilization of engineered MSCs for future treatment in patients.
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Affiliation(s)
- Kamal Shaik Fakiruddin
- Stem Cell Laboratory, Haematology Unit, Cancer Research Centre, Institute for Medical Research, Kuala Lumpur 50588, Malaysia.
- UPM-MAKNA Cancer Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
| | - Nadiah Ghazalli
- Medical Genetics Laboratory, Department of Biomedical Sciences, Faculty of Medicine & Health Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
| | - Moon Nian Lim
- Stem Cell Laboratory, Haematology Unit, Cancer Research Centre, Institute for Medical Research, Kuala Lumpur 50588, Malaysia.
| | - Zubaidah Zakaria
- Stem Cell Laboratory, Haematology Unit, Cancer Research Centre, Institute for Medical Research, Kuala Lumpur 50588, Malaysia.
| | - Syahril Abdullah
- UPM-MAKNA Cancer Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
- Medical Genetics Laboratory, Department of Biomedical Sciences, Faculty of Medicine & Health Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
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Satar NA, Fakiruddin KS, Lim MN, Mok PL, Zakaria N, Fakharuzi NA, Abd Rahman AZ, Zakaria Z, Yahaya BH, Baharuddin P. Novel triple‑positive markers identified in human non‑small cell lung cancer cell line with chemotherapy-resistant and putative cancer stem cell characteristics. Oncol Rep 2018; 40:669-681. [PMID: 29845263 PMCID: PMC6072294 DOI: 10.3892/or.2018.6461] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [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: 10/17/2017] [Accepted: 04/03/2018] [Indexed: 02/06/2023] Open
Abstract
Through the specific identification and direct targeting of cancer stem cells (CSCs), it is believed that a better treatment efficacy of cancer may be achieved. Hence, the present study aimed to identify a CSC subpopulation from adenocarcinoma cells (A549) as a model of non-small cell lung cancer (NSCLC). Initially, we sorted two subpopulations known as the triple-positive (EpCAM+/CD166+/CD44+) and triple-negative (EpCAM−/CD166−/CD44−) subpopulation using fluorescence-activated cell sorting (FACS). Sorted cells were subsequently evaluated for proliferation and chemotherapy-resistance using a viability assay and were further characterized for their clonal heterogeneity, self-renewal characteristics, cellular migration, alkaline dehydrogenase (ALDH) activity and the expression of stemness-related genes. According to our findings the triple-positive subpopulation revealed significantly higher (P<0.01) proliferation activity, exhibited better clonogenicity, was mostly comprised of holoclones and had markedly bigger (P<0.001) spheroid formation indicating a better self-renewal capacity. A relatively higher resistance to both 5-fluouracil and cisplatin with 80% expression of ALDH was observed in the triple-positive subpopulation, compared to only 67% detected in the triple-negative subpopulation indicated that high ALDH activity contributed to greater chemotherapy-resistance characteristics. Higher percentage of migrated cells was observed in the triple-positive subpopulation with 56% cellular migration being detected, compared to only 19% in the triple-negative subpopulation on day 2. This was similarly observed on day 3 in the triple-positive subpopulation with 36% higher cellular migration compared to the triple-negative subpopulation. Consistently, elevated levels of the stem cell genes such as REX1 and SSEA4 were also found in the triple-positive subpopulation indicating that the subpopulation displayed a strong characteristic of pluripotency. In conclusion, our study revealed that the triple-positive subpopulation demonstrated similar characteristics to CSCs compared to the triple-negative subpopulation. It also confirmed the feasibility of using the triple-positive (EpCAM+/CD166+/CD44+) marker as a novel candidate marker that may lead to the development of novel therapies targeting CSCs of NSCLC.
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Affiliation(s)
- Nazilah Abdul Satar
- Regenerative Medicine Cluster, Advanced Medical and Dental Institute (AMDI), Universiti Sains Malaysia, 13200 Penang, Malaysia
| | - Kamal Shaik Fakiruddin
- Stem Cell Laboratory, Haematology Unit, Cancer Research Centre, Institute for Medical Research (IMR), 50588 Kuala Lumpur, Malaysia
| | - Moon Nian Lim
- Stem Cell Laboratory, Haematology Unit, Cancer Research Centre, Institute for Medical Research (IMR), 50588 Kuala Lumpur, Malaysia
| | - Pooi Ling Mok
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor
| | - Norashikin Zakaria
- Regenerative Medicine Cluster, Advanced Medical and Dental Institute (AMDI), Universiti Sains Malaysia, 13200 Penang, Malaysia
| | - Noor Atiqah Fakharuzi
- Stem Cell Laboratory, Haematology Unit, Cancer Research Centre, Institute for Medical Research (IMR), 50588 Kuala Lumpur, Malaysia
| | - Ahmad Zuhairi Abd Rahman
- Stem Cell Laboratory, Haematology Unit, Cancer Research Centre, Institute for Medical Research (IMR), 50588 Kuala Lumpur, Malaysia
| | - Zubaidah Zakaria
- Stem Cell Laboratory, Haematology Unit, Cancer Research Centre, Institute for Medical Research (IMR), 50588 Kuala Lumpur, Malaysia
| | - Badrul Hisham Yahaya
- Regenerative Medicine Cluster, Advanced Medical and Dental Institute (AMDI), Universiti Sains Malaysia, 13200 Penang, Malaysia
| | - Puteri Baharuddin
- Stem Cell Laboratory, Haematology Unit, Cancer Research Centre, Institute for Medical Research (IMR), 50588 Kuala Lumpur, Malaysia
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Zakaria N, Mohd Yusoff N, Zakaria Z, Widera D, Yahaya BH. Inhibition of NF-κB Signaling Reduces the Stemness Characteristics of Lung Cancer Stem Cells. Front Oncol 2018; 8:166. [PMID: 29868483 PMCID: PMC5966538 DOI: 10.3389/fonc.2018.00166] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [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: 02/22/2018] [Accepted: 04/30/2018] [Indexed: 12/29/2022] Open
Abstract
Cancer stem cells (CSCs) are a subpopulation of cancer cells that play a pivotal role in tumor development, invasion, metastasis, and recurrence. We and others have reported significant involvement of the NF-κB pathway in regulating CSCs of non-small cell lung cancer (NSCLC). In this study, we evaluated the effects of NF-κB inhibition on self-renewal, stemness, migration, and expression of genes involved in the epithelial to mesenchymal transition (EMT) and apoptosis resistance in lung CSCs. Different concentrations of the NF-κB inhibitor BMS-345541 (0.4, 4.0, and 10.0 µM), an inhibitor the NF-κB upstream kinase IKKβ, were used to treat both lung CSCs (CD166+CD44+, CD166+EpCAM+) and non-CSC NSCLC cells (CD166−CD44−, CD166−EpCAM−) in A549 and H2170 cell lines. We assessed the impact of BMS-345541 on the ability to form tumorspheres (self-renewal assay), expression of stemness genes (SOX2, OCT4, NANOG, SCA-1, and KLF4), migration, and expression of EMT and apoptosis-related genes. Inhibition of NF-κB by BMS-345541 effectively reduced the stemness, self-renewal, and migration capacity of lung CSCs. Moreover, expression of genes involved in the EMT (SNAI1 and TWIST) and apoptosis resistance (BCL-2, BAX, and BIRC5) was significantly reduced following the treatments, suggesting that NF-κB inhibition is sufficient to prevent the EMT and induce apoptosis in lung CSCs. Our findings suggest that NF-κB inhibition could reduce the capability of CSCs to maintain their population within the tumor mass, potentially decelerating cancer progression, relapse, and chemotherapy resistance.
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Affiliation(s)
- Norashikin Zakaria
- Regenerative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, Penang, Malaysia
| | - Narazah Mohd Yusoff
- Regenerative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, Penang, Malaysia
| | - Zubaidah Zakaria
- Cancer Research Centre, Institute for Medical Research (IMR), Kuala Lumpur, Malaysia
| | - Darius Widera
- Stem Cell Biology and Regenerative Medicine, School of Pharmacy, University of Reading, Reading, United Kingdom
| | - Badrul Hisham Yahaya
- Regenerative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, Penang, Malaysia
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Hussain M, Zakaria Z, Rizman Z, Yasin M. Power loss estimation due to difference transformer tap changer position at interface. J Fundam and Appl Sci 2018. [DOI: 10.4314/jfas.v9i3s.53] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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41
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Mohd Abd Majid H, Ahmad Sharif S, Sulong S, Omar M, Syed Yassin S, Raju R, Zakaria Z, Zakaria F. Small and Medium Enterprises (SMEs) future development: a comprehensive review on customer retention programme in retaining customer loyalty. J Fundam and Appl Sci 2018. [DOI: 10.4314/jfas.v9i5s.70] [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: 11/17/2022] Open
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42
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Zakaria Z, Abdul Majid M, Ahmad Z, Jusoh Z, Zakaria N. Influence of Halal certification on customers’ purchase intention. J Fundam and Appl Sci 2018. [DOI: 10.4314/jfas.v9i5s.55] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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43
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Shahidan N, Salleh N, Zakaria Z, Rois Anwar N. Glycemic index of chocolate fortified with pumpkin (<i>Cucurbita moshata</i>) and taro (<i>Colocasia esculenta</i>) powder and its effect on mood and cognitive functions of female students. J Fundam and Appl Sci 2018. [DOI: 10.4314/jfas.v9i2s.57] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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44
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Fuad A, Anwar N, Zakaria A, Shahidan N, Zakaria Z. Physicochemical characteristics of Malaysian honeys influenced by storage time and temperature. J Fundam and Appl Sci 2018. [DOI: 10.4314/jfas.v9i2s.52] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Alahnomi RA, Zakaria Z, Ruslan E, Ab Rashid SR, Mohd Bahar AA, Shaaban A. Microwave bio-sensor based on symmetrical split ring resonator with spurline filters for therapeutic goods detection. PLoS One 2017; 12:e0185122. [PMID: 28934301 PMCID: PMC5608324 DOI: 10.1371/journal.pone.0185122] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 09/06/2017] [Indexed: 11/24/2022] Open
Abstract
A novel symmetrical split ring resonator (SSRR) based microwave sensor with spurline filters for detecting and characterizing the properties of solid materials has been developed. Due to the weak perturbation in the interaction of material under test (MUT) and planar microwave sensor, spurline filters were embedded to the SSRR microwave sensor which effectively enhanced Q-factor with suppressing the undesired harmonic frequency. The spurline filter structures force the presented sensor to resonate at a fundamental frequency of 2.2 GHz with the capabilities of suppressing rejected harmonic frequency and miniaturization in circuit size. A wide bandwidth rejection is achieved by using double spurlines filters with high Q-factor achievement (up to 652.94) compared to single spurline filter. The new SSRR sensor with spurline filters displayed desired properties such as high sensitivity, accuracy, and performance with a 1.3% typical percentage error in the measurement results. Furthermore, the sensor has been successfully applied for detecting and characterizing solid materials (such as Roger 5880, Roger 4350, and FR4) and evidently demonstrated that it can suppress the harmonic frequency effectively. This novel design with harmonic suppression is useful for various applications such as food industry (meat, fruit, vegetables), biological medicine (derived from proteins and other substances produced by the body), and Therapeutic goods (antiseptics, vitamins, anti-psychotics, and other medicines).
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Affiliation(s)
- Rammah A. Alahnomi
- Center for Telecommunication Research and Innovation (CeTRI), Universiti Teknikal Malaysia Melaka (UTeM), Hang Tuah Jaya, Durian Tunggal, Melaka, Malaysia
- * E-mail: (RA); (ZZ)
| | - Z. Zakaria
- Center for Telecommunication Research and Innovation (CeTRI), Universiti Teknikal Malaysia Melaka (UTeM), Hang Tuah Jaya, Durian Tunggal, Melaka, Malaysia
- * E-mail: (RA); (ZZ)
| | - E. Ruslan
- Faculty of Technology Engineering (FTK), Universiti Teknikal Malaysia Melaka (UTeM), Hang Tuah Jaya, Durian Tunggal, Melaka, Malaysia
| | - S. R. Ab Rashid
- Center for Telecommunication Research and Innovation (CeTRI), Universiti Teknikal Malaysia Melaka (UTeM), Hang Tuah Jaya, Durian Tunggal, Melaka, Malaysia
| | - Amyrul Azuan Mohd Bahar
- Center for Telecommunication Research and Innovation (CeTRI), Universiti Teknikal Malaysia Melaka (UTeM), Hang Tuah Jaya, Durian Tunggal, Melaka, Malaysia
| | - Azizah Shaaban
- Department of Engineering Materials, Faculty of Manufacturing Engineering, Universiti Teknikal Malaysia Melaka (UTeM), Hang Tuah Jaya, Durian Tunggal, Melaka, Malaysia
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Islam M, Mohamed EH, Esa E, Kamaluddin NR, Zain SM, Yusoff YM, Assenov Y, Mohamed Z, Zakaria Z. Circulating cytokines and small molecules follow distinct expression patterns in acute myeloid leukaemia. Br J Cancer 2017; 117:1551-1556. [PMID: 28898234 PMCID: PMC5680464 DOI: 10.1038/bjc.2017.316] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 07/10/2017] [Revised: 07/20/2017] [Accepted: 08/18/2017] [Indexed: 12/30/2022] Open
Abstract
Background: Although aberrant expression of cytokines and small molecules (analytes) is well documented in acute myeloid leukaemia (AML), their co-expression patterns are not yet identified. In addition, plasma baselines for some analytes that are biomarkers for other cancers have not been previously reported in AML. Methods: We used multiplex array technology to simultaneously detect and quantify 32 plasma analyte (22 reported analytes and 10 novel analytes) levels in 38 patients. Results: In our study, 16 analytes are found to be significantly deregulated (13 higher, 3 lower, Mann–Whitney U-test, P-value <0.005), where 5 of them have never been reported before in AML. We predicted a seven-analyte-containing multiplex panel for diagnosis of AML and, among them, MIF could be a possible therapeutic target. In addition, we observed that circulating analytes show five co-expression signatures. Conclusions: Circulating analyte expression in AML significantly differs from normal, and follow distinct expression patterns.
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Affiliation(s)
- Mirazul Islam
- Department of Medical Oncology, Dana-Farber Cancer Institute, 44 Binney Street, Boston, MA 02115, USA.,Cancer Program, The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA.,Pharmacogenomics Lab, Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Elsa Haniffah Mohamed
- Pharmacogenomics Lab, Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Ezalia Esa
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, Kuala Lumpur 50588, Malaysia
| | - Nor Rizan Kamaluddin
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, Kuala Lumpur 50588, Malaysia
| | - Shamsul Mohd Zain
- Pharmacogenomics Lab, Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Yuslina Mat Yusoff
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, Kuala Lumpur 50588, Malaysia
| | - Yassen Assenov
- Computational Epigenomics Group, Division of Epigenomics and Cancer Risk Factor, German Cancer Research Center, Heidelberg 69120, Germany
| | - Zahurin Mohamed
- Pharmacogenomics Lab, Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Zubaidah Zakaria
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, Kuala Lumpur 50588, Malaysia
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Ali EZ, Yakob Y, Md Desa N, Ishak T, Zakaria Z, Ngu LK, Keng WT. Molecular analysis of fragile X syndrome (FXS) among Malaysian patients with developmental disability. Malays J Pathol 2017; 39:99-106. [PMID: 28866690] [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: 06/07/2023]
Abstract
Fragile X syndrome (FXS) is a neurodevelopmental disorder commonly found worldwide, caused by the silencing of fragile X mental retardation 1 (FMR1) gene on the X-chromosome. Most of the patients lost FMR1 function due to an expansion of cytosine-guanine-guanine (CGG) repeat at the 5' untranslated region (5'UTR) of the gene. The purpose of this study is to identify the prevalence of FXS and characterize the FMR1 gene CGG repeats distribution among children with developmental disability in Malaysia. Genomic DNA of 2201 samples from different ethnicities (Malays, Chinese, Indian and others) of both genders were PCR-amplified from peripheral blood leukocytes based on specific primers at 5'UTR of FMR1 gene. Full mutations and mosaics were successfully identified by triple methylation specific PCR (ms-PCR) and subsequently verified with FragilEase kit. The findings revealed for the first time the prevalence of FXS full mutation in children with developmental disability in Malaysia was 3.5%, a slightly higher figure as compared to other countries. Molecular investigation also identified 0.2% and 0.4% probands have permutation and intermediate alleles, respectively. The CGG repeats length observation showed 95% of patients had normal alleles within 11 to 44 CGG repeats; with 29 repeats found most common among Malays and Indians while 28 repeats were most common among Chinese. In conclusion, this is the first report of prevalence and characterisation of CGG repeats that reflects genetic variability among Malaysian ethnic grouping.
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Affiliation(s)
- E Z Ali
- Institute for Medical Research, Specialised Diagnostic Centre, Molecular Diagnostics and Protein Unit, 50588 Jalan Pahang, Kuala Lumpur, Malaysia.
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Rengasamy M, Singh G, Fakharuzi NA, Siddikuzzaman, Balasubramanian S, Swamynathan P, Thej C, Sasidharan G, Gupta PK, Das AK, Rahman AZA, Fakiruddin KS, Nian LM, Zakaria Z, Majumdar AS. Transplantation of human bone marrow mesenchymal stromal cells reduces liver fibrosis more effectively than Wharton's jelly mesenchymal stromal cells. Stem Cell Res Ther 2017; 8:143. [PMID: 28610623 PMCID: PMC5470281 DOI: 10.1186/s13287-017-0595-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [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: 12/23/2016] [Revised: 03/23/2017] [Accepted: 05/22/2017] [Indexed: 12/17/2022] Open
Abstract
Background Mesenchymal stromal cells (MSCs) from various tissues have shown moderate therapeutic efficacy in reversing liver fibrosis in preclinical models. Here, we compared the relative therapeutic potential of pooled, adult human bone marrow (BM)- and neonatal Wharton’s jelly (WJ)-derived MSCs to treat CCl4-induced liver fibrosis in rats. Methods Sprague-Dawley rats were injected with CCl4 for 8 weeks to induce irreversible liver fibrosis. Ex-vivo expanded, pooled human MSCs obtained from BM and WJ were intravenously administered into rats with liver fibrosis at a dose of 10 × 106 cells/animal. Sham control and vehicle-treated animals served as negative and disease controls, respectively. The animals were sacrificed at 30 and 70 days after cell transplantation and hepatic-hydroxyproline content, histopathological, and immunohistochemical analyses were performed. Results BM-MSCs treatment showed a marked reduction in liver fibrosis as determined by Masson’s trichrome and Sirius red staining as compared to those treated with the vehicle. Furthermore, hepatic-hydroxyproline content and percentage collagen proportionate area were found to be significantly lower in the BM-MSCs-treated group. In contrast, WJ-MSCs treatment showed less reduction of fibrosis at both time points. Immunohistochemical analysis of BM-MSCs-treated liver samples showed a reduction in α-SMA+ myofibroblasts and increased number of EpCAM+ hepatic progenitor cells, along with Ki-67+ and human matrix metalloprotease-1+ (MMP-1+) cells as compared to WJ-MSCs-treated rat livers. Conclusions Our findings suggest that BM-MSCs are more effective than WJ-MSCs in treating liver fibrosis in a CCl4-induced model in rats. The superior therapeutic activity of BM-MSCs may be attributed to their expression of certain MMPs and angiogenic factors.
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Affiliation(s)
- Mathiyazhagan Rengasamy
- Stempeutics Research Pvt Ltd, Akshay Tech Park, EPIP Zone, Phase-1, Whitefield, Bangalore, 560066, Karnataka, India
| | - Gurbind Singh
- Stempeutics Research Pvt Ltd, Akshay Tech Park, EPIP Zone, Phase-1, Whitefield, Bangalore, 560066, Karnataka, India.,Department of Life Sciences, International Medical University, Bukit Jalil, 57000, Kuala Lumpur, Malaysia
| | - Noor Atiqah Fakharuzi
- Hematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, 50588, Kuala Lumpur, Malaysia
| | - Siddikuzzaman
- Stempeutics Research Pvt Ltd, Akshay Tech Park, EPIP Zone, Phase-1, Whitefield, Bangalore, 560066, Karnataka, India
| | - Sudha Balasubramanian
- Stempeutics Research Pvt Ltd, Akshay Tech Park, EPIP Zone, Phase-1, Whitefield, Bangalore, 560066, Karnataka, India
| | - Priyanka Swamynathan
- Stempeutics Research Pvt Ltd, Akshay Tech Park, EPIP Zone, Phase-1, Whitefield, Bangalore, 560066, Karnataka, India
| | - Charan Thej
- Stempeutics Research Pvt Ltd, Akshay Tech Park, EPIP Zone, Phase-1, Whitefield, Bangalore, 560066, Karnataka, India.,Manipal University, Manipal, Karnataka, India
| | - Gopinath Sasidharan
- Stempeutics Research Pvt Ltd, Akshay Tech Park, EPIP Zone, Phase-1, Whitefield, Bangalore, 560066, Karnataka, India
| | - Pawan Kumar Gupta
- Stempeutics Research Pvt Ltd, Akshay Tech Park, EPIP Zone, Phase-1, Whitefield, Bangalore, 560066, Karnataka, India
| | - Anjan Kumar Das
- Stempeutics Research Pvt Ltd, Akshay Tech Park, EPIP Zone, Phase-1, Whitefield, Bangalore, 560066, Karnataka, India.,Department of Surgery, Taylor's University School of Medicine, Selangor, Subang Jaya, Malaysia
| | - Ahmad Zuhairi Abd Rahman
- Hematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, 50588, Kuala Lumpur, Malaysia
| | - Kamal Shaik Fakiruddin
- Hematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, 50588, Kuala Lumpur, Malaysia
| | - Lim Moon Nian
- Hematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, 50588, Kuala Lumpur, Malaysia
| | - Zubaidah Zakaria
- Hematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, 50588, Kuala Lumpur, Malaysia
| | - Anish S Majumdar
- Stempeutics Research Pvt Ltd, Akshay Tech Park, EPIP Zone, Phase-1, Whitefield, Bangalore, 560066, Karnataka, India.
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Husaini R, Ahmad M, Zakaria Z. Effectiveness of imatinib mesylate over etoposide in the treatment of sensitive and resistant chronic myeloid leukaemia cells in vitro. Exp Ther Med 2017; 13:3209-3216. [PMID: 28587395 PMCID: PMC5450554 DOI: 10.3892/etm.2017.4443] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 12/14/2015] [Accepted: 12/23/2016] [Indexed: 12/25/2022] Open
Abstract
Chronic myeloid leukaemia (CML) is a form of leukaemia derived from the myeloid cell lineage. Imatinib mesylate, the breakpoint cluster region-abelson murine leukeamia kinase inhibitor, is a specific reagent used in the clinical treatment of CML. The DNA topoisomerase II inhibitor, etoposide, is also employed as a therapeutic, though it is used to a lesser extent. The present study aims to evaluate the effects of CML-targeted therapy, utilising imatinib mesylate and etoposide in the in vitro treatment of parental sensitive and adriamycin-resistant CML in the K562 and K562/ADM cell lines, respectively. Preliminary work involved the screening of multidrug resistant (MDR) gene expression, including MDR1, MRP1 and B-cell lymphoma 2 (BCL-2) at the mRNA levels. The sensitive and resistant CML cell lines expressed the MRP1 gene, though the sensitive K562 cells expressed low, almost undetectable levels of MDR1 and BCL-2 genes relative to the K562/ADM cells. Following treatment with imatinib mesylate or etoposide, the IC50 for imatinib mesylate did not differ between the sensitive and resistant cell lines (0.492±0.024 and 0.378±0.029, respectively), indicating that imatinib mesylate is effective in the treatment of CML regardless of cell chemosensitivity. However, the IC50 for etoposide in sensitive K562 cells was markedly lower than that of K562/ADM cells (50.6±16.5 and 194±8.46 µM, respectively), suggesting that the higher expression levels of MDR1 and/or BCL-2 mRNA in resistant cells may be partially responsible for this effect. This is supported by terminal deoxynucleotidyl transferase dUTP nick-end labeling data, whereby a higher percentage of apoptotic cells were found in the sensitive and resistant K562 cells treated with imatinib mesylate (29.3±0.2 and 31.9±16.7%, respectively), whereas etoposide caused significant apoptosis of sensitive K562 cells (18.3±8.35%) relative to K562/ADM cells (5.17±3.3%). In addition, the MDR genes in K562/ADM cells were knocked down by short interfering RNAs. The percentage knockdowns were 15.4% for MRP1, 17.8% for MDR and 30.7% for BCL-2, which resulted in a non-significant difference in the half maximal inhibitory concentration value of K562/ADM cells relative to K562 cells upon treatment with etoposide.
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Affiliation(s)
- Roslina Husaini
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, 50588 Kuala Lumpur, Malaysia
| | - Munirah Ahmad
- Molecular Pathology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, 50588 Kuala Lumpur, Malaysia
| | - Zubaidah Zakaria
- Haematology Unit, Cancer Research Centre, Institute for Medical Research, Jalan Pahang, 50588 Kuala Lumpur, Malaysia
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