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Masoudi M, Moti D, Masoudi R, Auwal A, Hossain MM, Pronoy TUH, Rashel KM, Gopalan V, Islam F. Metabolic adaptations in cancer stem cells: A key to therapy resistance. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167164. [PMID: 38599259 DOI: 10.1016/j.bbadis.2024.167164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 03/31/2024] [Accepted: 04/03/2024] [Indexed: 04/12/2024]
Abstract
Cancer stem cells (CSCs) are a subset of tumor cells that can initiate and sustain tumor growth and cause recurrence and metastasis. CSCs are particularly resistant to conventional therapies compared to their counterparts, owing greatly to their intrinsic metabolic plasticity. Metabolic plasticity allows CSCs to switch between different energy production and usage pathways based on environmental and extrinsic factors, including conditions imposed by conventional cancer therapies. To cope with nutrient deprivation and therapeutic stress, CSCs can transpose between glycolysis and oxidative phosphorylation (OXPHOS) metabolism. The mechanism behind the metabolic pathway switch in CSCs is not fully understood, however, some evidence suggests that the tumor microenvironment (TME) may play an influential role mediated by its release of signals, such as Wnt/β-catenin and Notch pathways, as well as a background of hypoxia. Exploring the factors that promote metabolic plasticity in CSCs offers the possibility of eventually developing therapies that may more effectively eliminate the crucial tumor cell subtype and alter the disease course substantially.
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Affiliation(s)
- Matthew Masoudi
- School of Medicine and Dentistry, Griffith University, Gold Coast 4222, Australia
| | - Dilpreet Moti
- School of Medicine and Dentistry, Griffith University, Gold Coast 4222, Australia
| | - Raha Masoudi
- Faculty of Science, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Abdul Auwal
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - M Matakabbir Hossain
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Tasfik Ul Haque Pronoy
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Khan Mohammad Rashel
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Vinod Gopalan
- School of Medicine and Dentistry, Griffith University, Gold Coast 4222, Australia
| | - Farhadul Islam
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh.
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Singhabahu R, Kodagoda Gamage SM, Gopalan V. Pathological significance of heme oxygenase-1 as a potential tumor promoter in heme-induced colorectal carcinogenesis. Cancer Pathog Ther 2024; 2:65-73. [PMID: 38601482 PMCID: PMC11002664 DOI: 10.1016/j.cpt.2023.04.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 04/01/2023] [Accepted: 04/06/2023] [Indexed: 04/12/2024]
Abstract
The significance of the heme-metabolizing enzyme heme oxygenase-1 (HMOX1) in the pathogenesis of colorectal cancer (CRC) has not been fully explored. HMOX1 cytoprotection is imperative to limit oxidative stress. However, its roles in preventing carcinogenesis in response to high levels of heme are not thoroughly understood. This study reviews various mechanisms associated with the paradoxical role of HMOX1, which is advantageous for tumor growth, refractoriness, and survival of cancer cells amid oxidative stress in heme-induced CRC. The alternate role of HMOX1 promotes cell proliferation and metastasis through immune modulation and angiogenesis. Inhibiting HMOX1 has been found to reverse tumor promotion. Thus, HMOX1 acts as a conditional tumor promoter in CRC pathogenesis.
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Affiliation(s)
- Rachitha Singhabahu
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland 4222, Australia
| | - Sujani M. Kodagoda Gamage
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland 4222, Australia
- Faculty of Health Sciences and Medicine, Bond University, Robina 4226, Australia
| | - Vinod Gopalan
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland 4222, Australia
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Pronoy TUH, Islam F, Gopalan V, Lam AKY. Surface Markers for the Identification of Cancer Stem Cells. Methods Mol Biol 2024; 2777:51-69. [PMID: 38478335 DOI: 10.1007/978-1-0716-3730-2_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
Cancer stem cells have genetic and functional characteristics which can turn them resistant to standard cancer therapeutic targets. Identification of these cells is challenging and is done mainly by detecting the expression of antigens specific to stem cells. Currently, there is a significant number of surface markers available which can detect cancer stem cells by directly targeting the specific antigens present in cells. These markers possess differential expression patterns and sub-localizations in cancer stem cells compared to nonneoplastic and somatic cells. In addition to these biomarkers, multiple analytical methods and techniques, including functional assays, cell sorting, filtration approaches, and xenotransplantation methods, are used to identify cancer stem cells. This chapter will overview the functional significance of cancer stem cells, their biological correlations, specific markers, and detection methods.
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Affiliation(s)
- Tasfik Ul Haque Pronoy
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, Bangladesh
| | - Farhadul Islam
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, Bangladesh
| | - Vinod Gopalan
- Cancer Molecular Pathology, School of Medicine and Dentistry, Griffith University, Gold Coast, QLD, Australia
| | - Alfred King-Yin Lam
- Cancer Molecular Pathology, School of Medicine and Dentistry, Griffith University, Gold Coast, QLD, Australia.
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Niranjan N, Sriram KB, Gopalan V. Obstructive Sleep Apnea and Colorectal Cancer: A Systematic Review and Meta-Analysis. J Gastrointest Cancer 2023; 54:1151-1157. [PMID: 36813984 DOI: 10.1007/s12029-023-00919-2] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/08/2023] [Indexed: 02/24/2023]
Abstract
BACKGROUND Obstructive sleep apnea (OSA), characterised by recurrent episodes of upper airway collapse, intermittent hypoxia (IH) and sleep fragmentation (SF), has been associated with carcinogenesis in pre-clinical models. The relationship between OSA and colorectal cancer (CRC) in clinical studies is controversial. AIM The objective of this meta-analysis was to assess the association between OSA and CRC. METHODS Two independent investigators searched studies indexed in CINAHL, MEDLINE, EMBASE, the Cochrane Database and clinicaltrials.gov that were randomised controlled trials (RCT) or observational studies evaluating the relationship between OSA and CRC. Studies were included if they had available odds ratios (OR) and relative risks (RR) or if hazard ratios (HR) with 95% confidence intervals (CI) were available and a reference group composed of participants who did not have OSA. OR and 95% CI were calculated using a random-effect, generic inverse variance method. RESULTS We included four observational studies out of 85 records, comprising a combined cohort of 5,651,662 identified patients in the data analysis. Three studies used polysomnography to identify OSA. The pooled OR of CRC in patients with OSA was 1.49 (95% CI, 0.75 to 2.97). The statistical heterogeneity was high with I2 of 95%. CONCLUSIONS Our study is unable to conclusively point towards OSA being a risk factor in the development of CRC, despite the plausible biological mechanisms for this. Further well-designed prospective RCT assessing the risk of CRC in patients with OSA and the impact of OSA treatments on the incidence and prognosis of CRC are needed.
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Affiliation(s)
- Navin Niranjan
- Department of Respiratory Medicine, Gold Coast University Hospital, 1 Hospital Blvd, Southport, QLD, 4215, Australia.
| | - Krishna Bajee Sriram
- Department of Respiratory Medicine, Gold Coast University Hospital, 1 Hospital Blvd, Southport, QLD, 4215, Australia
- School of Medicine & Dentistry, Griffith University, Southport, Australia
| | - Vinod Gopalan
- School of Medicine & Dentistry, Griffith University, Southport, Australia
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Islam MS, Gopalan V, Lam AK, Shiddiky MJA. Current advances in detecting genetic and epigenetic biomarkers of colorectal cancer. Biosens Bioelectron 2023; 239:115611. [PMID: 37619478 DOI: 10.1016/j.bios.2023.115611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 08/07/2023] [Accepted: 08/16/2023] [Indexed: 08/26/2023]
Abstract
Colorectal carcinoma (CRC) is the third most common cancer in terms of diagnosis and the second in terms of mortality. Recent studies have shown that various proteins, extracellular vesicles (i.e., exosomes), specific genetic variants, gene transcripts, cell-free DNA (cfDNA), circulating tumor DNA (ctDNA), microRNAs (miRNAs), long non-coding RNAs (lncRNAs), and altered epigenetic patterns, can be used to detect, and assess the prognosis of CRC. Over the last decade, a plethora of conventional methodologies (e.g., polymerase chain reaction [PCR], direct sequencing, enzyme-linked immunosorbent assay [ELISA], microarray, in situ hybridization) as well as advanced analytical methodologies (e.g., microfluidics, electrochemical biosensors, surface-enhanced Raman spectroscopy [SERS]) have been developed for analyzing genetic and epigenetic biomarkers using both optical and non-optical tools. Despite these methodologies, no gold standard detection method has yet been implemented that can analyze CRC with high specificity and sensitivity in an inexpensive, simple, and time-efficient manner. Moreover, until now, no study has critically reviewed the advantages and limitations of these methodologies. Here, an overview of the most used genetic and epigenetic biomarkers for CRC and their detection methods are discussed. Furthermore, a summary of the major biological, technical, and clinical challenges and advantages/limitations of existing techniques is also presented.
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Affiliation(s)
- Md Sajedul Islam
- Cancer Molecular Pathology, School of Medicine & Dentistry, Griffith University, Gold Coast Campus, Southport, QLD, 4222, Australia; Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD, 4222, Australia
| | - Vinod Gopalan
- Cancer Molecular Pathology, School of Medicine & Dentistry, Griffith University, Gold Coast Campus, Southport, QLD, 4222, Australia; Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD, 4222, Australia.
| | - Alfred K Lam
- Cancer Molecular Pathology, School of Medicine & Dentistry, Griffith University, Gold Coast Campus, Southport, QLD, 4222, Australia; Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD, 4222, Australia; Pathology Queensland, Gold Coast University Hospital, Southport, QLD, 4215, Australia
| | - Muhammad J A Shiddiky
- Rural Health Research Institute, Charles Sturt University, Orange, NSW, 2800, Australia.
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Aktar S, Islam F, Cheng T, Gamage SMK, Choudhury IN, Islam MS, Lu CT, Hamid FB, Ishida H, Abe I, Xie N, Gopalan V, Lam AK. Correlation between KRAS Mutation and CTLA-4 mRNA Expression in Circulating Tumour Cells: Clinical Implications in Colorectal Cancer. Genes (Basel) 2023; 14:1808. [PMID: 37761948 PMCID: PMC10530465 DOI: 10.3390/genes14091808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/07/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
Combination strategies of KRAS inhibition with immunotherapy in treating advanced or recurrent colorectal carcinoma (CRC) may need to be assessed in circulating tumour cells (CTCs) to achieve better clinical outcomes. This study aimed to investigate the genomic variations of KRAS in CTCs and matched CRC tissues and compared mRNA expression of KRAS and CTLA-4 between wild-type and KRAS-mutated CTCs and CRC tissues. Clinicopathological correlations were also compared. Six known mutations of KRAS were identified at both codon 12 and codon 13 (c.35G>T/G12V, c.35G>A7/G12D, c.35G>C/G12A, c.34G>A/G12S, c.38G>C/G13A, and c.38G>A/G13D). Three CTC samples harboured the identified mutations (16.7%; 3/18), while fifteen matched primary tumour tissues (65.2%, 15/23) showed the mutations. CTCs harbouring the KRAS variant were different from matched CRC tissue. All the mutations were heterozygous. Though insignificant, CTLA-4 mRNA expression was higher in patients carrying KRAS mutations. Patients harbouring KRAS mutations in CTCs were more likely to have poorly differentiated tumours (p = 0.039) and with lymph node metastasis (p = 0.027) and perineural invasion (p = 0.014). KRAS mutations in CTCs were also significantly correlated with overall pathological stages (p = 0.027). These findings imply the genetic basis of KRAS with immunotherapeutic target molecules based on a real-time platform. This study also suggests the highly heterogeneous nature of cancer cells, which may facilitate the assessment of clonal dynamics across a single patient's disease.
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Affiliation(s)
- Sharmin Aktar
- Cancer Molecular Pathology, School of Medicine and Dentistry, Griffith University, Gold Coast, QLD 4222, Australia; (S.A.); (T.C.); (S.M.K.G.); (M.S.I.); (F.B.H.); (H.I.); (I.A.); (N.X.)
- Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD 4222, Australia;
- Department of Biochemistry and Molecular Biology, Mawlana Bhashani Science and Technology University, Tangail 1902, Bangladesh
| | - Farhadul Islam
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh;
| | - Tracie Cheng
- Cancer Molecular Pathology, School of Medicine and Dentistry, Griffith University, Gold Coast, QLD 4222, Australia; (S.A.); (T.C.); (S.M.K.G.); (M.S.I.); (F.B.H.); (H.I.); (I.A.); (N.X.)
- Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD 4222, Australia;
| | - Sujani Madhurika Kodagoda Gamage
- Cancer Molecular Pathology, School of Medicine and Dentistry, Griffith University, Gold Coast, QLD 4222, Australia; (S.A.); (T.C.); (S.M.K.G.); (M.S.I.); (F.B.H.); (H.I.); (I.A.); (N.X.)
- Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD 4222, Australia;
- Faculty of Health Sciences & Medicine, Bond University, Gold Coast, QLD 4229, Australia
| | - Indra Neil Choudhury
- Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD 4222, Australia;
| | - Md Sajedul Islam
- Cancer Molecular Pathology, School of Medicine and Dentistry, Griffith University, Gold Coast, QLD 4222, Australia; (S.A.); (T.C.); (S.M.K.G.); (M.S.I.); (F.B.H.); (H.I.); (I.A.); (N.X.)
- Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD 4222, Australia;
- Department of Biochemistry & Biotechnology, University of Barishal, Barishal 8254, Bangladesh
| | - Cu Tai Lu
- Department of Surgery, Gold Coast University Hospital, Gold Coast, QLD 4215, Australia;
| | - Faysal Bin Hamid
- Cancer Molecular Pathology, School of Medicine and Dentistry, Griffith University, Gold Coast, QLD 4222, Australia; (S.A.); (T.C.); (S.M.K.G.); (M.S.I.); (F.B.H.); (H.I.); (I.A.); (N.X.)
- Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD 4222, Australia;
| | - Hirotaka Ishida
- Cancer Molecular Pathology, School of Medicine and Dentistry, Griffith University, Gold Coast, QLD 4222, Australia; (S.A.); (T.C.); (S.M.K.G.); (M.S.I.); (F.B.H.); (H.I.); (I.A.); (N.X.)
| | - Ichiro Abe
- Cancer Molecular Pathology, School of Medicine and Dentistry, Griffith University, Gold Coast, QLD 4222, Australia; (S.A.); (T.C.); (S.M.K.G.); (M.S.I.); (F.B.H.); (H.I.); (I.A.); (N.X.)
| | - Nan Xie
- Cancer Molecular Pathology, School of Medicine and Dentistry, Griffith University, Gold Coast, QLD 4222, Australia; (S.A.); (T.C.); (S.M.K.G.); (M.S.I.); (F.B.H.); (H.I.); (I.A.); (N.X.)
| | - Vinod Gopalan
- Cancer Molecular Pathology, School of Medicine and Dentistry, Griffith University, Gold Coast, QLD 4222, Australia; (S.A.); (T.C.); (S.M.K.G.); (M.S.I.); (F.B.H.); (H.I.); (I.A.); (N.X.)
- Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD 4222, Australia;
| | - Alfred K. Lam
- Cancer Molecular Pathology, School of Medicine and Dentistry, Griffith University, Gold Coast, QLD 4222, Australia; (S.A.); (T.C.); (S.M.K.G.); (M.S.I.); (F.B.H.); (H.I.); (I.A.); (N.X.)
- Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD 4222, Australia;
- Pathology Queensland, Gold Coast University Hospital, Southport, QLD 4215, Australia
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Aktar S, Hamid FB, Gamage SMK, Cheng T, Pakneshan N, Lu CT, Islam F, Gopalan V, Lam AKY. Correction: Aktar et al. Gene Expression Analysis of Immune Regulatory Genes in Circulating Tumour Cells and Peripheral Blood Mononuclear Cells in Patients with Colorectal Carcinoma. Int. J. Mol. Sci. 2023, 24, 5051. Int J Mol Sci 2023; 24:11362. [PMID: 37511633 PMCID: PMC10370048 DOI: 10.3390/ijms241411362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 07/30/2023] Open
Abstract
Faysal Bin Hamid was not included as an author in the original publication [...].
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Affiliation(s)
- Sharmin Aktar
- Cancer Molecular Pathology, School of Medicine and Dentistry, Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD 4222, Australia
- Department of Biochemistry and Molecular Biology, Mawlana Bhashani Science and Technology University, Tangail 1902, Bangladesh
| | - Faysal Bin Hamid
- Cancer Molecular Pathology, School of Medicine and Dentistry, Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD 4222, Australia
| | - Sujani Madhurika Kodagoda Gamage
- Cancer Molecular Pathology, School of Medicine and Dentistry, Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD 4222, Australia
- Faculty of Health Sciences & Medicine, Bond University, Gold Coast, QLD 4229, Australia
| | - Tracie Cheng
- Cancer Molecular Pathology, School of Medicine and Dentistry, Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD 4222, Australia
| | - Nahal Pakneshan
- Cancer Molecular Pathology, School of Medicine and Dentistry, Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD 4222, Australia
| | - Cu Tai Lu
- Cancer Molecular Pathology, School of Medicine and Dentistry, Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD 4222, Australia
- Department of Surgery, Gold Coast University Hospital, Gold Coast, QLD 4215, Australia
| | - Farhadul Islam
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Vinod Gopalan
- Cancer Molecular Pathology, School of Medicine and Dentistry, Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD 4222, Australia
| | - Alfred King-Yin Lam
- Cancer Molecular Pathology, School of Medicine and Dentistry, Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD 4222, Australia
- Pathology Queensland, Gold Coast University Hospital, Southport, QLD 4215, Australia
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Das PK, Saha J, Pillai S, Lam AKY, Gopalan V, Islam F. Implications of estrogen and its receptors in colorectal carcinoma. Cancer Med 2023; 12:4367-4379. [PMID: 36207986 PMCID: PMC9972078 DOI: 10.1002/cam4.5242] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/18/2022] [Accepted: 09/01/2022] [Indexed: 11/08/2022] Open
Abstract
Estrogens have been implicated in the pathogenesis of various cancer types, including colorectal carcinoma (CRC). Estrogen receptors such as ERα and ERβ activate intracellular signaling cascades followed by binding to estrogen, resulting in important changes in cellular behaviors. The nuclear estrogen receptors, i.e. ERβ and ERα are responsible for the genomic actions of estrogens, whereas the other receptor, such as G protein-coupled estrogen receptor (GPER) regulates rapid non-genomic actions, which lead to secondary gene expression changes in cells. ERβ, the predominant estrogen receptor expressed in both normal and non-malignant colonic epithelium, has protective roles in colon carcinogenesis. ERβ may exert the anti-tumor effect through selective activation of pro-apoptotic signaling, increasing DNA repair, inhibiting expression of oncogenes, regulating cell cycle progression, and also by changing the micro-RNA pool and DNA-methylation. Thus, a better understanding of the underlying mechanisms of estrogen and its receptors in CRC pathogenesis could provide a new horizon for effective therapeutic development. Furthermore, using synthetic or natural compounds as ER agonists may induce estrogen-mediated anti-cancer activities against colon cancer. In this study, we report the most recent pre-clinical and experimental evidences related to ERs in CRC development. Also, we reviewed the actions of naturally occurring and synthetic compounds, which have a protective role against CRC development by acting as ER agonist.
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Affiliation(s)
- Plabon Kumar Das
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, Bangladesh.,Institute for Glycomics, Griffith University, Gold Coast, Queensland, Australia
| | - Joti Saha
- Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi, Bangladesh
| | - Suja Pillai
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia
| | - Alfred K-Y Lam
- School of Medicine & Dentistry, Griffith University, Gold Coast, Queensland, Australia
| | - Vinod Gopalan
- School of Medicine & Dentistry, Griffith University, Gold Coast, Queensland, Australia
| | - Farhadul Islam
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, Bangladesh.,Institute for Glycomics, Griffith University, Gold Coast, Queensland, Australia
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Aktar S, Baghaie H, Islam F, Gopalan V, Lam AKY. Current Status of Circulating Tumor Cells in Head and Neck Squamous Cell Carcinoma: A Review. Otolaryngol Head Neck Surg 2023; 168:988-1005. [PMID: 36939466 DOI: 10.1002/ohn.186] [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: 03/03/2022] [Revised: 09/28/2022] [Accepted: 10/09/2022] [Indexed: 01/20/2023]
Abstract
OBJECTIVE Circulating tumor cells (CTCs) are found in the blood of patients with cancer, including head and neck squamous cell carcinomas (HNSCCs). The aim is to review the most up-to-date status of CTCs for applications in patients with HNSCC. DATA SOURCES English articles in PubMed. REVIEW METHODS All the studies on CTCs in HNSCCs in the literature were reviewed. CONCLUSIONS There is emerging information on the diagnostic and prognostic value of CTCs in HNSCCs. Evidence also highlights the advantages of various downstream analysis approaches over circulating tumor DNA (ctDNA), such as single-CTC analysis, ex vivo, and in vivo expansion of CTCs. Multiple phenotypic surface markers (cytokeratins, EpCAM, vimentin, etc.), used for CTCs characterization using different immunoassays, could predict disease progression as well as patients' response to treatment efficacy. Immune checkpoint inhibitors' status in CTCs could also provide better insight into treatment. Clonal expansion of CTCs and single-cell analysis of CTCs are the most emerging fields nowadays which may offer an understanding of the mechanism of tumor evolution as well as therapeutic efficacy. Although several clinical trials are ongoing, limitations still exist in the detection and characterization of CTCs. Due to the lack of a gold standard protocol, the sensitivity and specificity of CTC enumeration methods vary. IMPLICATIONS FOR PRACTICE Prospective clinical trials are still needed before CTCs can be employed as diagnostic and prognostic markers in the clinical management of patients with HNSCC.
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Affiliation(s)
- Sharmin Aktar
- Cancer Molecular Pathology, School of Medicine and Dentistry, Menzies Health Institute Queensland, Griffith University, Gold Coast, Australia.,Department of Biochemistry and Molecular Biology, Mawlana Bhashani Science and Technology University, Tangail, Bangladesh
| | - Hooman Baghaie
- School of Dentistry, University of Queensland, Herston, Australia
| | - Farhadul Islam
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, Bangladesh
| | - Vinod Gopalan
- Cancer Molecular Pathology, School of Medicine and Dentistry, Menzies Health Institute Queensland, Griffith University, Gold Coast, Australia
| | - Alfred King-Yin Lam
- Cancer Molecular Pathology, School of Medicine and Dentistry, Menzies Health Institute Queensland, Griffith University, Gold Coast, Australia.,Pathology Queensland, Gold Coast University Hospital, Southport, Australia
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Gamage SM, Nanayakkara S, Macfarlane L, Hewage D, Cheng T, Aktar S, Lu CT, Dissabandara L, Islam F, Lam AKY, Gopalan V. Heme oxygenase-1 & 2 and their potential contribution in heme induced colorectal carcinogenesis. Pathol Res Pract 2022; 233:153885. [DOI: 10.1016/j.prp.2022.153885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/23/2022] [Accepted: 04/01/2022] [Indexed: 10/18/2022]
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Nassiri M, Gopalan V, Vakili-Azghandi M. Modifications of Ribonucleases in Order to Enhance Cytotoxicity in Anticancer Therapy. Curr Cancer Drug Targets 2022; 22:373-387. [PMID: 35240973 DOI: 10.2174/1568009622666220303101005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 11/03/2021] [Accepted: 11/11/2021] [Indexed: 11/22/2022]
Abstract
Ribonucleases (RNases) are a superfamily of enzymes that have been extensively studied since the 1960s. For a long time, this group of secretory enzymes was studied as an important model for protein chemistry such as folding, stability and enzymatic catalysis. Since it was discovered that RNases displayed cytotoxic activity against several types of malignant cells, recent investigation has focused mainly on the biological functions and medical applications of engineered RNases. In this review, we describe structures, functions and mechanisms of antitumor activity of RNases. They operate at the crossroads of transcription and translation, preferentially degrading tRNA. As a result, this inhibits protein synthesis, induces apoptosis and causes death of cancer cells. This effect can be enhanced thousands of times when RNases are conjugated with monoclonal antibodies. Such combinations, called immunoRNases, have demonstrated selective antitumor activity against cancer cells both in vitro and in animal models. This review summarizes the current status of engineered RNases and immunoRNases as promising novel therapeutic agents for different types of cancer. Also, we describe our experimental results from published or previously unpublished research and compare with other scientific information.
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Affiliation(s)
- Mohammadreza Nassiri
- Recombinant Proteins Research Group, The Research Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
- School of Life and Environmental Sciences, The University of Sydney, Sydney 2006, NSW, Australia
| | - Vinod Gopalan
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland 4222, Australia
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12
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Cheng T, Gamage SMK, Lu CT, Aktar S, Gopalan V, Lam AKY. Polymorphisms in PAH metabolising enzyme CYP1A1 in colorectal cancer and their clinicopathological correlations. Pathol Res Pract 2022; 231:153801. [DOI: 10.1016/j.prp.2022.153801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 02/03/2022] [Accepted: 02/09/2022] [Indexed: 11/26/2022]
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13
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Nassiri M, Behnam-Rasouli R, Vakili-Azghandi M, Gopalan V, Dolati P, Nourmohammadi R. Refined immunoRNases for the efficient targeting and selective killing of tumour cells: A novel strategy. Life Sci 2022; 289:120222. [PMID: 34902436 DOI: 10.1016/j.lfs.2021.120222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 11/13/2021] [Accepted: 12/05/2021] [Indexed: 11/18/2022]
Abstract
In order to overcome limitations of conventional cancer therapy methods, immunotoxins with the capability of target-specific action have been designed and evaluated pre-clinically, and some of them are in clinical studies. Targeting cancer cells via antibodies specific for tumour-associated surface proteins is a new biomedical approach that could provide the selectivity that is lacking in conventional cancer therapy methods such as radiotherapy and chemotherapy. A successful example of an approved immunotoxin is represented by immunoRNases. ImmunoRNases are fusion proteins in which the toxin has been replaced by a ribonuclease. Conjugation of RNase molecule to monoclonal antibody or antibody fragment was shown to enhance specific cell-killing by several orders of magnitude, both in vitro and in animal models. There are several RNases obtained from different mammalian cells that are expected to be less immunogenic and systemically toxic. In fact, RNases are pro-toxins which become toxic only upon their internalization in target cells mediated by the antibody moiety. The structure and large size of the antibody molecules assembled with the immunoRNases have always been a challenge in the application of immunoRNases as an antitoxin. To overcome this obstacle, we have offered a new strategy for the application of immunoRNases as a promising approach for upgrading immunoRNAses with maximum affinity and high stability in the cell, which can ultimately act as an effective large-scale cancer treatment. In this review, we introduce the optimized antibody-like molecules with small size, approximately 10 kD, which are presumed to significantly enhance RNase activity and be a suitable agent with the potential for anti-cancer functionality. In addition, we also discuss new molecular entities such as monobody, anticalin, nonobody and affilin as refined versions in the development of immunoRNases. These small molecules express their functionality with the suitable small size as well as with low immunogenicity in the cell, as a part of immunoRNases.
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Affiliation(s)
- Mohammadreza Nassiri
- Recombinant Proteins Research Group, The Research Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran; School of Life and Environmental Sciences, The University of Sydney, Sydney 2006, NSW, Australia.
| | - Reihane Behnam-Rasouli
- Recombinant Proteins Research Group, The Research Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
| | | | - Vinod Gopalan
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland 4222, Australia
| | - Peyman Dolati
- Institute for Marine and Antarctic Studies (IMAS), University of Tasmania, Hobart, Tasmania, Australia
| | - Rouhollah Nourmohammadi
- Department of Animal Science, College of Agriculture, Lorestan University, Khorramabad, Lorestan 68137-17133, Iran
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14
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Waugh S, Devin J, Lam AKY, Gopalan V. FE-learning and the virtual transformation of histopathology teaching during COVID-19: its impact on student learning experience and outcome. BMC Med Educ 2022; 22:22. [PMID: 34996435 PMCID: PMC8740866 DOI: 10.1186/s12909-021-03066-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 11/30/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Medical and pathology education has gone through an immense transformation from traditional face-to-face teaching mode to virtual mode during the COVID-19 pandemic. This study evaluated the effectiveness of online histopathology teaching in medical education during the 2020 COVID-19 pandemic in Griffith University, Australia. METHODS Second-year medical students (n = 150) who had previously completed one year of face-to-face histopathology teaching, completed an online questionnaire rating their learning experiences before and during the COVID-19 pandemic after the completion of their histology and pathology practical sessions. The students' histopathology assessment results were then compared to the histopathology results of a prior second-year cohort to determine if the switch to online histopathology teaching had an impact on students' learning outcome. RESULTS A thematic analysis of the qualitative comments strongly indicated that online histopathology teaching was instrumental, more comfortable to engage in and better structured compared to face-to-face teaching. Compared to the previous year's practical assessment, individual performance was not significantly different (p = 0.30) and compared to the prior cohort completing the same curriculum the mean overall mark was significantly improved from 65.36% ± 13.12% to 75.83% ± 14.84% (p < 0.05) during the COVID-19 impacted online teaching period. CONCLUSIONS The transformation of teaching methods during the 2020 COVID-19 pandemic improved student engagement without any adverse effects on student learning outcomes in histology and pathology education.
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Affiliation(s)
- Samantha Waugh
- School of Medicine & Dentistry, Griffith University, Gold Coast, QLD, 4222, Australia
| | - James Devin
- School of Medicine & Dentistry, Griffith University, Gold Coast, QLD, 4222, Australia
| | - Alfred King-Yin Lam
- School of Medicine & Dentistry, Griffith University, Gold Coast, QLD, 4222, Australia
| | - Vinod Gopalan
- School of Medicine & Dentistry, Griffith University, Gold Coast, QLD, 4222, Australia.
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15
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Muhammad Sakri MS, Tengku Din TADAA, Jaafar H, Gopalan V, Wan Abdul Rahman WF. Rapamycin as a potent and selective inhibitor of vascular endothelial growth factor receptor in breast carcinoma. Int J Immunopathol Pharmacol 2022; 36:20587384211059673. [PMID: 35037503 PMCID: PMC8777331 DOI: 10.1177/20587384211059673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 09/27/2020] [Accepted: 10/26/2021] [Indexed: 12/30/2022] Open
Abstract
Angiogenesis is the process of new vascular formation, which is derived from various factors. For suppressing cancer cell growth, targeting angiogenesis is one of the therapeutic approaches. Vascular endothelial growth factor family receptors, including Flt-1, Flk-1 and Flt-4, have been found to play an essential role in regulating angiogenesis. Rapamycin is a macrolide compound with anti-proliferative properties, while platelet factor-4 (PF-4) is an antiangiogenic ELR-negative chemokine. Rapamycin inhibits mTOR ligands activation, thus suppressing cell proliferation, while PF-4 inhibits cell proliferation through several mechanisms. In the present study, we evaluated the effects of rapamycin and platelet factor-4 toward breast carcinoma at the proteomic and genomic levels. A total of 60 N-Methyl-N-Nitrosourea-induced rat breast carcinomas were treated with rapamycin, platelet factor-4 and rapamycin+platelet factor-4. The tumours were subsequently subjected to immunohistochemical protein analysis and polymerase chain reaction gene analysis. Protein analysis was performed using a semiquantitative scoring method, while the mRNA expression levels were analysed based on the relative expression ratio. There was a significant difference in the protein and mRNA expression levels for the selected markers. In the rapamycin+platelet factor-4-treated group, the Flt-4 marker was downregulated, whereas there were no differences in the expression levels of other markers, such as Flt-1 and Flk-1. On the other hand, platelet factor-4 did not exhibit a superior angiogenic inhibiting ability in this study. Rapamycin is a potent antiangiogenic drug; however, platelet factor-4 proved to be a less effective drug of anti-angiogenesis on rat breast carcinoma model.
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Affiliation(s)
| | - Tengku Ahmad Damitri Al-Astani Tengku Din
- Department of Chemical Pathology, School of
Medical Sciences, Universiti Sains Malaysia, Health
Campus, Kelantan, Malaysia
- Breast Cancer Awareness & Research
Unit, Hospital Universiti Sains Malaysia, Kelantan, Malaysia
| | - Hasnan Jaafar
- Department of Pathology, School of Medical
Sciences, Universiti Sains Malaysia, Health
Campus, Kelantan, Malaysia
| | - Vinod Gopalan
- Cancer Molecular Pathology, School of
Medicine, Griffith University Gold Coast, Southport, QLD, Australia
| | - Wan Faiziah Wan Abdul Rahman
- Department of Pathology, School of Medical
Sciences, Universiti Sains Malaysia, Health
Campus, Kelantan, Malaysia
- Breast Cancer Awareness & Research
Unit, Hospital Universiti Sains Malaysia, Kelantan, Malaysia
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16
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Ng SK, Tawiah R, Mclachlan GJ, Gopalan V. Joint frailty modeling of time-to-event data to elicit the evolution pathway of events: a generalized linear mixed model approach. Biostatistics 2021; 24:108-123. [PMID: 34752610 PMCID: PMC9766887 DOI: 10.1093/biostatistics/kxab037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 07/28/2021] [Accepted: 10/06/2021] [Indexed: 12/16/2022] Open
Abstract
Multimorbidity constitutes a serious challenge on the healthcare systems in the world, due to its association with poorer health-related outcomes, more complex clinical management, increases in health service utilization and costs, but a decrease in productivity. However, to date, most evidence on multimorbidity is derived from cross-sectional studies that have limited capacity to understand the pathway of multimorbid conditions. In this article, we present an innovative perspective on analyzing longitudinal data within a statistical framework of survival analysis of time-to-event recurrent data. The proposed methodology is based on a joint frailty modeling approach with multivariate random effects to account for the heterogeneous risk of failure and the presence of informative censoring due to a terminal event. We develop a generalized linear mixed model method for the efficient estimation of parameters. We demonstrate the capacity of our approach using a real cancer registry data set on the multimorbidity of melanoma patients and document the relative performance of the proposed joint frailty model to the natural competitor of a standard frailty model via extensive simulation studies. Our new approach is timely to advance evidence-based knowledge to address increasingly complex needs related to multimorbidity and develop interventions that are most effective and viable to better help a large number of individuals with multiple conditions.
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Affiliation(s)
- Shu Kay Ng
- To whom correspondence should be addressed.
| | - Richard Tawiah
- School of Mathematics and Statistics, University of
Melbourne, Parkville, VIC 3010, Australia
| | - Geoffrey J Mclachlan
- Department of Mathematics, University of Queensland, St.
Lucia, QLD 4072, Australia
| | - Vinod Gopalan
- School of Medicine and Dentistry, Menzies Health Institute Queensland,
Griffith University, Southport, QLD 4222, Australia
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17
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Cheng T, Lam AK, Gopalan V. Diet derived polycyclic aromatic hydrocarbons and its pathogenic roles in colorectal carcinogenesis. Crit Rev Oncol Hematol 2021; 168:103522. [PMID: 34748942 DOI: 10.1016/j.critrevonc.2021.103522] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 10/03/2021] [Revised: 11/02/2021] [Accepted: 11/03/2021] [Indexed: 12/11/2022] Open
Abstract
Polycyclic aromatic hydrocarbon (PAHs) are molecules that contaminate meat products during the high-temperature cooking of meat. This study reviewed the pathogenic roles of meat derived polycyclic aromatic hydrocarbons in the carcinogenesis of colorectal cancer (CRC). Ingested PAHs undergo xenobiotic metabolism resulting in the activation of genotoxic metabolites that can induce DNA damage in the colorectum. Genetic polymorphisms in PAH xenobiotic enzymes are linked to the risk of CRC and suggest a role for PAH-meat ingestion in carcinogenesis of colorectal malignancies. Furthermore, PAH specific DNA adducts have been identified in colorectal cancer tissue and linked to high meat intake. DNA adduct resolution is mediated by the nucleotide excision repair, and polymorphisms within genes of this repair pathway and high meat intake are associated with increased CRC risk. In the literature, there is evidence from metabolic enzyme gene variants, DNA repair genes, PAH metabolites, and epidemiological studies suggesting PAH involvement in CRC.
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Affiliation(s)
- Tracie Cheng
- Cancer Molecular Pathology, School of Medicine & Dentistry, Griffith University, Gold Coast, Queensland 4222, Australia
| | - Alfred K Lam
- Cancer Molecular Pathology, School of Medicine & Dentistry, Griffith University, Gold Coast, Queensland 4222, Australia
| | - Vinod Gopalan
- Cancer Molecular Pathology, School of Medicine & Dentistry, Griffith University, Gold Coast, Queensland 4222, Australia.
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18
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Abstract
The COVID-19 pandemic has forced health educators to adapt quickly to teaching and supporting students online. Social media platforms - of which Facebook is presently the most popular worldwide-has demonstrated its utility in facilitating online learning and fostering student support. In order for educators to get the most out of the platform, they should consider adopting a systematic and evidence-based approach. This article draws upon current literature and the authors' experiences to offer practical tips for health educators wanting to use Facebook as a learning platform and support tool for their students. We offer twelve tips, organized into prescriptive steps for creating and managing a Facebook group, and suggestions for utilizing Facebook's features to foster student learning, collaboration, communication, and socialization.
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Affiliation(s)
- Michael Todorovic
- Menzies Health Institute Queensland, Griffith University, Gold Coast, Australia
- School of Nursing and Midwifery, Griffith University, Nathan, Australia
| | - Elisabeth Coyne
- Menzies Health Institute Queensland, Griffith University, Gold Coast, Australia
- School of Nursing and Midwifery, Griffith University, Nathan, Australia
| | - Vinod Gopalan
- Menzies Health Institute Queensland, Griffith University, Gold Coast, Australia
- School of Medicine, Griffith University, Gold Coast, Australia
| | - Youn Oh
- School of Nursing and Midwifery, Griffith University, Nathan, Australia
| | - Lila Landowski
- School of Medicine, University of Tasmania, Hobart, Australia
| | - Matthew Barton
- Menzies Health Institute Queensland, Griffith University, Gold Coast, Australia
- School of Nursing and Midwifery, Griffith University, Nathan, Australia
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19
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Bhadra MK, Gopalan V. Stress Redistribution Near a Crack in Maraging Steel using Composite Patch. DEFENCE SCI J 2021. [DOI: 10.14429/dsj.71.16794] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The presence of a crack significantly reduces the load bearing capacity of a structure made of fracture prone material. The conventional process of repairing a defect is gouging and filling the gouged location by rewelding. It is not only time consuming but also constrained by the number of repairs that can be done as material properties degrade with each round of rewelding. In an attempt to overcome the limitation of the conventional repair process, repairing a defect using composite patch is proposed. The study is carried out on Maraging steel (M250) and the defect considered is a crack. Stress intensity factor (SIF), being an important parameter in fracture-based design, it is evaluated in Abaqus. Extended finite element method is used to model the crack. SIF is used to predict the failure load of a surface cracked tension specimen and the same is compared with the values reported in literature. Composite patch is modelled using woven ply properties. A separate layer of adhesive is also modelled to predict the properties adhesive properties. Failure analysis of each component namely, the Maraging steel plate, the composite patch and the adhesive is carried. It was observed that the addition of a composite patch completely nullifies the presence of a crack. The patch with thickness 1mm and woven ply properties is having minimal damage initiation and likely to survive. The adhesive properties required is also obtained from the finite element analysis. Thus, it was observed that a composite patch with woven ply properties and thickness 1mm is able to completely nullify the effect of a crack when bonded with a suitable adhesive as predicted by the analysis.
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20
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Cheng T, Chaousis S, Kodagoda Gamage SM, Lam AKY, Gopalan V. Polycyclic Aromatic Hydrocarbons Detected in Processed Meats Cause Genetic Changes in Colorectal Cancers. Int J Mol Sci 2021; 22:10959. [PMID: 34681617 PMCID: PMC8537007 DOI: 10.3390/ijms222010959] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/03/2021] [Accepted: 10/06/2021] [Indexed: 12/12/2022] Open
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are commonly ingested via meat and are produced from high-temperature cooking of meat. Some of these PAHs have potential roles in carcinogenesis of colorectal cancer (CRC). We aimed to investigate PAH concentrations in eight types of commonly consumed ready-to-eat meat samples and their potential effects on gene expressions related to CRC. Extraction and clean-up of meat samples were performed using QuEChERS method, and PAHs were detected using GC-MS. Nine different PAHs were found in meat samples. Interestingly, roast turkey contained the highest total PAH content, followed by salami meat. Hams of varying levels of smokedness showed a proportional increase of phenanthrene (PHEN), anthracene (ANTH), and fluorene (FLU). Triple-smoked ham samples showed significantly higher levels of these PAHs compared to single-smoked ham. These three PAHs plus benzo[a]pyrene (B[a]P), being detected in three meat samples, were chosen as treatments to investigate in vitro gene expression changes in human colon cells. After PAH treatment, total RNA was extracted and rtPCR was performed, investigating gene expression related to CRC. B[a]P decreased mRNA expression of TP53. In addition, at high concentrations, B[a]P significantly increased KRAS expression. Treatments with 1 µM PHEN, 25 µM, and 10 µM FLU significantly increased KRAS mRNA expression in vitro, implying the potential basis for PAH-induced colorectal carcinogenesis. Opposingly, the ANTH treatment led to increased TP53 and APC expression and decreased KRAS expression, suggesting an anti-carcinogenic effect. To conclude, PAHs are common in ready-to-eat meat samples and are capable of significantly modifying the expression of key genes related to CRC.
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Affiliation(s)
- Tracie Cheng
- Cancer Molecular Pathology, School of Medicine & Dentistry, Griffith University, Gold Coast 4222, Australia; (T.C.); (S.C.); (S.M.K.G.)
| | - Stephanie Chaousis
- Cancer Molecular Pathology, School of Medicine & Dentistry, Griffith University, Gold Coast 4222, Australia; (T.C.); (S.C.); (S.M.K.G.)
| | - Sujani Madhurika Kodagoda Gamage
- Cancer Molecular Pathology, School of Medicine & Dentistry, Griffith University, Gold Coast 4222, Australia; (T.C.); (S.C.); (S.M.K.G.)
- Department of Anatomy, Faculty of Medicine, University of Peradeniya, Kandy 20404, Sri Lanka
| | - Alfred King-yin Lam
- Cancer Molecular Pathology, School of Medicine & Dentistry, Griffith University, Gold Coast 4222, Australia; (T.C.); (S.C.); (S.M.K.G.)
| | - Vinod Gopalan
- Cancer Molecular Pathology, School of Medicine & Dentistry, Griffith University, Gold Coast 4222, Australia; (T.C.); (S.C.); (S.M.K.G.)
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21
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Islam F, Gopalan V, Lu CT, Pillai S, Lam AK. Identification of novel mutations and functional impacts of EPAS1 in colorectal cancer. Cancer Med 2021; 10:5557-5573. [PMID: 34250767 PMCID: PMC8366083 DOI: 10.1002/cam4.4116] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 06/07/2021] [Accepted: 06/09/2021] [Indexed: 12/12/2022] Open
Abstract
Endothelial PAS domain‐containing protein 1 (EPAS1) has implications in many cancers. However, the molecular behaviours, functional roles and mutational status of EPAS1 have never been studied in colorectal carcinoma (CRC). The study aims to examine the genetic alterations and functional roles of EPAS1 in CRC. In addition, the clinical impacts of EPAS1 in CRC were studied. Significant EPAS1 DNA amplification (63.4%; n = 52/82) and consequent mRNA overexpression (72%; n = 59/82) were noted in patients with CRC. In CRC, 16% (n = 13/82) of the patients had mutations in the EPAS1 coding sequence and most of the mutated samples exhibited aberrant DNA changes and mRNA overexpression. We have identified two novel variants, c.1084C>T; p.L362L and c.1121T>G; p.F374C in CRC. These EPAS1 aberrations in CRC were correlated with clinicopathological parameters, including tumour size, histological grade, T‐stages, cancer perforation as well as the presence of synchronous cancer. Also, reduced cell proliferation, wound healing, migration and invasion were noted in colon cancer cells followed by EPAS1 silencing. To conclude, the results obtained from the current study indicated that EPAS1 plays important role in colorectal carcinogenesis, thus, could be useful as a prognostic marker and as a target for therapy development.
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Affiliation(s)
- Farhadul Islam
- School of Biomedical Sciences, Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia.,School of Medicine and Dentistry, Griffith University, Gold Coast, Queensland, Australia.,Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, Bangladesh
| | - Vinod Gopalan
- School of Medicine and Dentistry, Griffith University, Gold Coast, Queensland, Australia
| | - Cu Tai Lu
- Department of Surgery, Gold Coast University Hospital, Southport, Queensland, Australia
| | - Suja Pillai
- School of Biomedical Sciences, Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Alfred K Lam
- School of Biomedical Sciences, Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia.,School of Medicine and Dentistry, Griffith University, Gold Coast, Queensland, Australia
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22
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Liu JY, Yu J, Ning JL, Yi HM, Miao L, Min LJ, Zhao YF, Ning W, Lopez KA, Zhu YL, Pillsbury T, Zhang YB, Wang Y, Hu J, Cao HB, Chakoumakos BC, Balakirev F, Weickert F, Jaime M, Lai Y, Yang K, Sun JW, Alem N, Gopalan V, Chang CZ, Samarth N, Liu CX, McDonald RD, Mao ZQ. Spin-valley locking and bulk quantum Hall effect in a noncentrosymmetric Dirac semimetal BaMnSb 2. Nat Commun 2021; 12:4062. [PMID: 34210963 PMCID: PMC8249485 DOI: 10.1038/s41467-021-24369-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 06/16/2021] [Indexed: 02/06/2023] Open
Abstract
Spin-valley locking in monolayer transition metal dichalcogenides has attracted enormous interest, since it offers potential for valleytronic and optoelectronic applications. Such an exotic electronic state has sparsely been seen in bulk materials. Here, we report spin-valley locking in a Dirac semimetal BaMnSb2. This is revealed by comprehensive studies using first principles calculations, tight-binding and effective model analyses, angle-resolved photoemission spectroscopy measurements. Moreover, this material also exhibits a stacked quantum Hall effect (QHE). The spin-valley degeneracy extracted from the QHE is close to 2. This result, together with the Landau level spin splitting, further confirms the spin-valley locking picture. In the extreme quantum limit, we also observed a plateau in the z-axis resistance, suggestive of a two-dimensional chiral surface state present in the quantum Hall state. These findings establish BaMnSb2 as a rare platform for exploring coupled spin and valley physics in bulk single crystals and accessing 3D interacting topological states.
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Affiliation(s)
- J Y Liu
- Department of Physics and Engineering Physics, Tulane University, New Orleans, LA, USA
- Department of Physics and Astronomy, University of California, Irvine, CA, USA
| | - J Yu
- Department of Physics, The Pennsylvania State University, University Park, PA, USA
- Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park, MD, USA
| | - J L Ning
- Department of Physics and Engineering Physics, Tulane University, New Orleans, LA, USA
| | - H M Yi
- Department of Physics, The Pennsylvania State University, University Park, PA, USA
| | - L Miao
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, USA
| | - L J Min
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, USA
| | - Y F Zhao
- Department of Physics, The Pennsylvania State University, University Park, PA, USA
| | - W Ning
- Department of Physics, The Pennsylvania State University, University Park, PA, USA
| | - K A Lopez
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, USA
| | - Y L Zhu
- Department of Physics, The Pennsylvania State University, University Park, PA, USA
| | - T Pillsbury
- Department of Physics, The Pennsylvania State University, University Park, PA, USA
| | - Y B Zhang
- Department of Physics and Engineering Physics, Tulane University, New Orleans, LA, USA
| | - Y Wang
- Department of Physics, The Pennsylvania State University, University Park, PA, USA
| | - J Hu
- Department of Physics, University of Arkansas, Fayetteville, AR, USA
| | - H B Cao
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - B C Chakoumakos
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - F Balakirev
- Los Alamos National Laboratory, Los Alamos, NM, USA
| | - F Weickert
- Los Alamos National Laboratory, Los Alamos, NM, USA
| | - M Jaime
- Los Alamos National Laboratory, Los Alamos, NM, USA
| | - Y Lai
- Los Alamos National Laboratory, Los Alamos, NM, USA
| | - Kun Yang
- Physics Department and National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, USA
| | - J W Sun
- Department of Physics and Engineering Physics, Tulane University, New Orleans, LA, USA
| | - N Alem
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, USA
| | - V Gopalan
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, USA
| | - C Z Chang
- Department of Physics, The Pennsylvania State University, University Park, PA, USA
| | - N Samarth
- Department of Physics, The Pennsylvania State University, University Park, PA, USA
| | - C X Liu
- Department of Physics, The Pennsylvania State University, University Park, PA, USA.
| | - R D McDonald
- Los Alamos National Laboratory, Los Alamos, NM, USA.
| | - Z Q Mao
- Department of Physics and Engineering Physics, Tulane University, New Orleans, LA, USA.
- Department of Physics, The Pennsylvania State University, University Park, PA, USA.
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, USA.
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23
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Kodagoda Gamage SM, Cheng T, Lee KTW, Dissabandara L, Lam AKY, Gopalan V. Hemin, a major heme molecule, induced cellular and genetic alterations in normal colonic and colon cancer cells. Pathol Res Pract 2021; 224:153530. [PMID: 34243108 DOI: 10.1016/j.prp.2021.153530] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 06/15/2021] [Indexed: 02/06/2023]
Abstract
Heme, a molecule abundant in red meat, is assumed to exert carcinogenic effects on normal colonic cells and tumour suppressive effects on cancer cells, though the hypothesis has not been explicitly proven yet. The present study aims to investigate hemin induced cytotoxic, genetic and biological alterations in both normal and cancerous colonic epithelial cells, which may imply its carcinogenic and anticarcinogenic properties. Normal colonic epithelial cells and colon carcinoma cells were treated with a 0-500 µM concentration of hemin for 1-4 days following which cytotoxicity and wound healing assays, western blot, rt-PCR and cell cycle analysis were performed. Interestingly, hemin was cytotoxic to normal colonic cells, but carcinoma cells were more resistant. Cell migration potential of both normal colonic cells and colon carcinoma cells was impeded by hemin. Hemin caused upregulation of both P53 and β-catenin gene and proteins expression in normal colonic cells with concomitant cell cycle arrest at G1(Gap 1) and G2/M (Gap 2/ Mitosis). G1 and G2 cell cycle arrests were also observed in colon carcinoma cells. In conclusion, the present study confirms that hemin, a main heme molecule present in red meat, facilitates behavioural, genetic and cell cycle kinetic alterations in both normal colonic epithelial and colon carcinoma cells.
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Affiliation(s)
- Sujani Madhurika Kodagoda Gamage
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland 4222, Australia; Department of Anatomy, Faculty of Medicine, University of Peradeniya, Sri Lanka
| | - Tracie Cheng
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland 4222, Australia
| | - Katherine Ting-Wei Lee
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland 4222, Australia
| | - Lakal Dissabandara
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland 4222, Australia
| | - Alfred King-Yin Lam
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland 4222, Australia.
| | - Vinod Gopalan
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland 4222, Australia.
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Gamage SMK, Lee KTW, Dissabandara DLO, Lam AKY, Gopalan V. Dual role of heme iron in cancer; promotor of carcinogenesis and an inducer of tumour suppression. Exp Mol Pathol 2021; 120:104642. [PMID: 33905708 DOI: 10.1016/j.yexmp.2021.104642] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 01/21/2021] [Revised: 03/14/2021] [Accepted: 04/22/2021] [Indexed: 02/06/2023]
Abstract
PURPOSE Heme is a crucial compound for cell survival but is also equipped with the potential to be toxic and carcinogenic to cells. However, with the recent advancement of knowledge regarding ferroptosis, the iron mediated cell death, heme can be postulated to induce tumour suppression through ferroptosis. This review summarizes the literature on the carcinogenic and anticarcinogenic properties of heme with specific emphasis on the alterations observed on heme synthesis, metabolism and transport in tumour cells. METHODS Literature search was performed in PubMed data base using the MeSH terms 'heme iron or heme', 'cancer or carcinogenesis' and 'tumour suppression' or 'anticarcinogenic properties. Out of 189 results, 166 were relevant to the current review. RESULTS Heme supports carcinogenesis via modulation of immune cell function, promoting inflammation and gut dysbiosis, impeding tumour suppressive potential of P53 gene, promoting cellular cytotoxicity and reactive oxygen species generation and modulating Nfr2 /HO-1 axis. The carcinogenic and anticarcinogenic properties of heme are both dose and oxygen concentration dependant. At low doses, heme is harmless and even helpful in maintaining the much-needed redox balance within the cell. However, when heme exceeds physiological concentrations, it could initiate and propagate carcinogenesis, due to its ability to produce reactive oxygen species (ROS). The same phenomenon of heme mediated ROS generation could be manipulated to initiate tumour suppression via ferroptosis, but the therapeutic doses are yet to be determined. CONCLUSION Heme iron possesses powerful carcinogenic and anticarcinogenic properties which are dosage and oxygen availability dependant.
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Affiliation(s)
- Sujani M K Gamage
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland 4222, Australia; Department of Anatomy, Faculty of Medicine, University of Peradeniya, Sri Lanka
| | - Katherine T W Lee
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland 4222, Australia
| | - D Lakal O Dissabandara
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland 4222, Australia
| | - Alfred King-Yin Lam
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland 4222, Australia.
| | - Vinod Gopalan
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland 4222, Australia.
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Abstract
MicroRNAs (miRNAs) are 20-22 nucleotides long single-stranded noncoding RNAs. They regulate gene expression posttranscriptionally by base pairing with the complementary sequences in the 3'-untranslated region of their targeted mRNA. Aberrant expression of miRNAs leads to alterations in the expression of oncogenes and tumor suppressors, thereby affecting cellular growth, proliferation, apoptosis, motility, and invasion capacity of gastrointestinal cells, including cells of esophageal squamous cell carcinoma (ESCC). Thus, alterations in miRNAs expression associated with the pathogenesis and progression of ESCC. In addition, expression profiles of miRNAs correlated with various clinicopathological factors, including pathological stages, histological differentiation, invasion, metastasis of cancer, as well as survival rates and therapy response of patients with ESCC. Consequently, expression profiles of miRNAs could be useful as diagnostic, prognostic, and prediction biomarkers in ESCC. Herein, we describe the quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) and microarray methods for detection and quantitate miRNAs in ESCC. In addition, we summarize the roles of miRNAs in ESCC pathogenesis, progression, and prognosis.
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Affiliation(s)
- Farhadul Islam
- Cancer Molecular Pathology of School of Medicine, Griffith University, Gold Coast, Queensland, Australia.,Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, Bangladesh
| | - Vinod Gopalan
- Cancer Molecular Pathology of School of Medicine, Griffith University, Gold Coast, Queensland, Australia
| | - Alfred K Lam
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland, Australia.
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Abstract
Researchers are developing new techniques and technologies to determine the characteristic features for cancer progression, thereby identifying potential targets and therapeutics to interfere these hallmark processes of cancer pathogenesis. The transformative researches using these in vitro methods have enable researchers to design precision treatments of patients with esophageal squamous cell carcinoma (ESCC). These in vitro methods mainly include analysis of cell proliferation, cytotoxicity, colony formation, invasion, and migration in ESCC cells for analyzing manipulations affecting the biological behavior of ESCC. Because of these studies, important information on molecular mechanisms of different genes and proteins as well as result of therapeutic interventions are confirmed in ESCC.
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Affiliation(s)
- Farhadul Islam
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland, Australia
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, Bangladesh
| | - Vinod Gopalan
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland, Australia
| | - Alfred K Lam
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland, Australia.
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Abu-Ghazaleh N, Chua WJ, Gopalan V. Intestinal microbiota and its association with colon cancer and red/processed meat consumption. J Gastroenterol Hepatol 2021; 36:75-88. [PMID: 32198788 DOI: 10.1111/jgh.15042] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 03/09/2020] [Accepted: 03/18/2020] [Indexed: 12/13/2022]
Abstract
The human colon harbors a high number of microorganisms that were reported to play a crucial role in colorectal carcinogenesis. In the recent decade, molecular detection and metabolomic techniques have expanded our knowledge on the role of specific microbial species in promoting tumorigenesis. In this study, we reviewed the association between microbial dysbiosis and colorectal carcinoma (CRC). Various microbial species and their association with colorectal tumorigenesis and red/processed meat consumption have been reviewed. The literature demonstrated a significant abundance of Fusobacterium nucleatum, Streptococcus bovis/gallolyticus, Escherichia coli, and Bacteroides fragilis in patients with adenoma or adenocarcinoma compared to healthy individuals. The mechanisms in which each organism was postulated to promote colon carcinogenesis were collated and summarized in this review. These include the microorganisms' ability to adhere to colon cells; modulate the inhibition of tumor suppressor genes, the activations of oncogenes, and genotoxicity; and activate downstream targets responsible for angiogenesis. The role of these microorganisms in conjugation with meat components including N-nitroso compounds, heterocyclic amines, and heme was also evident in multiple studies. The outcome of this review supports the role of red meat consumption in modulating CRC progression and the possibility of gut microbiome influencing the relationship between CRC and diet. The study also demonstrates that microbiota analysis could potentially complement existing screening methods when detecting colonic lesions.
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Affiliation(s)
- Nadine Abu-Ghazaleh
- School of Medicine, Menzies Health Institute Queensland, Griffith University, Gold Coast Campus, Gold Coast, Queensland, Australia
| | - Weng Joe Chua
- School of Medicine, Menzies Health Institute Queensland, Griffith University, Gold Coast Campus, Gold Coast, Queensland, Australia
| | - Vinod Gopalan
- School of Medicine, Menzies Health Institute Queensland, Griffith University, Gold Coast Campus, Gold Coast, Queensland, Australia
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Khatun M, Islam F, Gopalan V, Rahman MM, Zuberi N, Khatun L, Rakib MA, Islam MA, Lam AKY, Khanam JA. 2', 4'-dihydroxy-3, 4-methylenedioxychalcone Activate Mitochondrial Apoptosis of Ehrlich Ascites Carcinoma Cells. CDTH 2020. [DOI: 10.2174/1574885514666191211122437] [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: 11/22/2022]
Abstract
Background:
Development of effective cancer-chemotherapy is the most challenging
field due to the toxicity of chemo-agents.
Objective:
As chalcone has been known to have pharmacological applications, here the aim is to
synthesized three chalcone derivatives, 2',4'-dihydroxy-3,4-methylenedioxychalcone (C1), 2'-hydroxy-
2,4, 6-trimethoxychalcone (C2) and 2'-hydroxy-4-methylchalcone (C3) and investigate their anti-cancer
properties against Ehrlich Ascites Carcinoma (EAC) cell.
Method:
Anticancer properties against EAC cells were studied by examining growth inhibition,
MTT assays, tumour-bearing mice survival, tumour weight measurement and haematological profiles.
Moreover, apoptosis of EAC cells was investigated by fluorescence microscopy, flowcytometry
and DNA fragmentation assays. Expression of apoptosis related genes were studied by
reverse transcriptase-PCR (RT-PCR).
Results:
Among the compounds, C1 exhibited highest cell growth inhibition at 200 mg/kg/day
(81.71%; P < 0.01). C1 treatment also increased the life span of EAC-bearing mice (82.60%, P <
0.05) with the reduction of tumour burden (<) compared to untreated EAC-bearing
mice. In vitro study indicated that C1 killed EAC-cells in a dose-dependent manner and induced
mitochondria-mediated apoptotic pathways. In addition, C1 treated cells exhibited increased apoptotic
features such as membrane blebbing, chromatin condensation, and nuclear fragmentation after
Hoechst 33342 staining. Increased fragmentation of DNA in gel electrophoresis followed by C1
treatment further confirmed apoptosis of EAC cells. EAC cells treated with C1 showed reduced
Bcl-2 expression in contrast to notable upregulation of p53 and Bax expression. It implied that C1
could reinstate the expression of pro-apoptotic tumour suppressor and inhibit anti-apoptotic genes.
Conclusions:
Thus, C1 showed significant growth inhibitory properties and induced apoptosis of
EAC cells.
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Affiliation(s)
- Mahbuba Khatun
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Farhadul Islam
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Vinod Gopalan
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, QLD-4222, Australia
| | - Md. Motiar Rahman
- Department of Chemistry, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Natasha Zuberi
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Laboni Khatun
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Md. Abdur Rakib
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Md. Azizul Islam
- Department of Chemistry, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Alfred King-Yin Lam
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, QLD-4222, Australia
| | - Jahan Ara Khanam
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi-6205, Bangladesh
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Islam F, Pillai S, Gopalan V, Lam AKY. Identification of Novel Mutations and Expressions of EPAS1 in Phaeochromocytomas and Paragangliomas. Genes (Basel) 2020; 11:genes11111254. [PMID: 33114456 PMCID: PMC7693385 DOI: 10.3390/genes11111254] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/14/2020] [Accepted: 10/19/2020] [Indexed: 01/09/2023] Open
Abstract
Endothelial PAS domain-containing protein 1 (EPAS1) is an oxygen-sensitive component of the hypoxia-inducible factors (HIFs) having reported implications in many cancers by inducing a pseudo-hypoxic microenvironment. However, the molecular dysregulation and clinical significance of EPAS1 has never been investigated in depth in phaeochromocytomas/paragangliomas. This study aims to identify EPAS1 mutations and alterations in DNA copy number, mRNA and protein expression in patients with phaeochromocytomas/paragangliomas. The association of molecular dysregulations of EPAS1 with clinicopathological factors in phaeochromocytomas and paragangliomas were also analysed. High-resolution melt-curve analysis followed by Sanger sequencing was used to detect mutations in EPAS1. EPAS1 DNA number changes and mRNA expressions were examined by polymerase chain reaction (PCR). Immunofluorescence assay was used to study EPAS1 protein expression. In phaeochromocytomas, 12% (n = 7/57) of patients had mutations in the EPAS1 sequence, which includes two novel mutations (c.1091A>T; p.Lys364Met and c.1129A>T; p.Ser377Cys). Contrastingly, in paragangliomas, 7% (n = 1/14) of patients had EPAS1 mutations and only the c.1091A>T; p.Lys364Met mutation was detected. In silico analysis revealed that the p.Lys364Met mutation has pathological potential based on the functionality of the protein, whereas the p.Ser377Cys mutation was predicted to be neutral or tolerated. The majority of the patients had EPAS1 DNA amplification (79%; n = 56/71) and 53% (n = 24/45) patients shown mRNA overexpression. Most of the patients with EPAS1 mutations exhibited aberrant DNA changes, mRNA and protein overexpression. In addition, these alterations of EPAS1 were associated with tumour weight and location. Thus, the molecular dysregulation of EPAS1 could play crucial roles in the pathogenesis of phaeochromocytomas and paragangliomas.
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Affiliation(s)
- Farhadul Islam
- Institute for Glycomics, Griffith University, Gold Coast, QLD 4222, Australia;
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Suja Pillai
- Faculty of Medicine, School of Biomedical Sciences, University of Queensland, Brisbane, QLD 4072, Australia;
| | - Vinod Gopalan
- Cancer Molecular Pathology, School of Medicine, Gold Coast, QLD 4222, Australia;
| | - Alfred King-Yin Lam
- Cancer Molecular Pathology, School of Medicine, Gold Coast, QLD 4222, Australia;
- Correspondence: ; Tel.: +61-7-5678-0718; Fax: +61-7-5678-0708
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30
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Hamid FB, Gopalan V, Matos M, Lu CT, Lam AKY. Genetic Heterogeneity of Single Circulating Tumour Cells in Colorectal Carcinoma. Int J Mol Sci 2020; 21:ijms21207766. [PMID: 33092235 PMCID: PMC7589365 DOI: 10.3390/ijms21207766] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/10/2020] [Accepted: 10/18/2020] [Indexed: 12/11/2022] Open
Abstract
The aim of the present study was to isolate and investigate the genetic heterogeneities in single circulating tumour cells (CTCs) from patients with colorectal carcinoma (CRC). Twenty-eight single CTCs were collected from eight patients with CRC using a negative immunomagnetic enrichment method. After validation with glyceraldehyde 3-phosphate dehydrogenase (GAPDH) gene expression in 3 colon cancer cell lines, a panel of 19 genes were used to analyse the single CTCs (n = 28), primary colorectal carcinoma tissues (n = 8) and colon carcinoma cells (n = 6) using real-time qPCR. Genetic heterogeneities were assessed by comparing gene expression profiles of single CTCs from the different patients and in the same patient, respectively. Genetic profiling of the single CTCs showed extensive heterogeneities of the selected genes among the CTCs. Hierarchical clustering analyses exhibited two clusters of CTCs with differentially expressed genes, which highlighted different modifications from the primary carcinomas. Further, the genetic heterogeneities were observed between different patients or in the same patient. Finally, AKT1 expression was significantly (p = 0.0129) higher in single CTCs from CRC of advanced pathological stages (III or IV) CRC than in CTCs from CRC of early stages (I or II). Our findings suggest that single-cell genetic analysis can monitor the genetic heterogeneities and guide the personalised therapeutic targets in clinical sectors.
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Affiliation(s)
- Faysal Bin Hamid
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, QLD 4222, Australia;
| | - Vinod Gopalan
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, QLD 4222, Australia;
- Correspondence: (V.G.); (A.K.L.)
| | - Marco Matos
- Oncology, Gold Coast University Hospital, Gold Coast, QLD 4215, Australia;
| | - Cu-Tai Lu
- Colorectal Surgery, Gold Coast University Hospital, Gold Coast, QLD 4215, Australia;
| | - Alfred King-yin Lam
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, QLD 4222, Australia;
- Correspondence: (V.G.); (A.K.L.)
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Qallandar OB, Ebrahimi F, Islam F, Wahab R, Qiao B, Reher P, Gopalan V, Lam AKY. Bone Invasive Properties of Oral Squamous Cell Carcinoma and its Interactions with Alveolar Bone Cells: An In Vitro Study. Curr Cancer Drug Targets 2020; 19:631-640. [PMID: 30387395 DOI: 10.2174/1568009618666181102144317] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Revised: 10/01/2018] [Accepted: 10/14/2018] [Indexed: 01/07/2023]
Abstract
BACKGROUND Co-culture of cancer cells with alveolar bone cells could modulate bone invasion and destructions. However, the mechanisms of interaction between oral squamous cell carcinoma (OSCC) and bone cells remain unclear. OBJECTIVE The aim of this study is to analyse the direct and indirect effects of OSCC cells in the stimulation of osteolytic activity and bone invasion. METHODS Direct co-culture was achieved by culturing OSCC (TCA8113) with a primary alveolar bone cell line. In the indirect co-culture, the supernatant of TCA8113 cells was collected to culture the alveolar bone cells. To assess the bone invasion properties, in vitro assays were performed. RESULTS The proliferation of co-cultured cancer cells was significantly (p<0.05) higher in comparison to the monolayer control cells. However, the proliferation rates were not significantly different between direct and indirect co-cultured cells with indirect co-cultured cells proliferated slightly more than the direct co-cultured cells. Invasion and migration capacities of co-cultured OSCC and alveolar bone cells enhanced significantly (p<0.05) when compared to that of control monolayer counterparts. Most importantly, we noted that OSCC cells directly co-cultured with alveolar bone cells stimulated pronounced bone collagen destruction. In addition, stem cells and epithelialmesenchymal transition markers have shown significant changes in their expression in co-cultured cells. CONCLUSION In conclusion, the findings of this study highlight the importance of the interaction of alveolar bone cells and OSCC cells in co-culture setting in the pathogenesis of bone invasion. This may help in the development of potential future biotherapies for bone invasion in OSCC.
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Affiliation(s)
- Omel Baneen Qallandar
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland, Australia.,School of Dentistry and Oral Health, Griffith University, Gold Coast, Queensland, Australia
| | - Faeza Ebrahimi
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland, Australia
| | - Farhadul Islam
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland, Australia.,Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, Bangladesh
| | - Riajul Wahab
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland, Australia
| | - Bin Qiao
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, 450052, China
| | - Peter Reher
- School of Dentistry and Oral Health, Griffith University, Gold Coast, Queensland, Australia
| | - Vinod Gopalan
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland, Australia
| | - Alfred King-Yin Lam
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland, Australia
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Islam F, Gopalan V, Law S, Lam AK, Pillai S. Molecular Deregulation of EPAS1 in the Pathogenesis of Esophageal Squamous Cell Carcinoma. Front Oncol 2020; 10:1534. [PMID: 33042797 PMCID: PMC7518048 DOI: 10.3389/fonc.2020.01534] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 07/17/2020] [Indexed: 12/03/2022] Open
Abstract
Endothelial PAS domain-containing protein 1 (EPAS1) is an angiogenic factor and its implications have been reported in many cancers but not in esophageal squamous cell carcinoma (ESCC). Herein, we aim to examine the genetic and molecular alterations, clinical implications, and functional roles of EPAS1 in ESCC. High-resolution melt-curve analysis and Sanger sequencing were used to detect mutations in EPAS1 sequence. EPAS1 DNA number changes and mRNA expressions were analyzed by polymerase chain reaction. in vitro functional assays were used to study the impact of EPAS1 on cellular behaviors. Overall, 7.5% (n = 6/80) of patients with ESCC had mutations in EPAS1, and eight novel variants (c.1084C>T, c.1099C>A, c.1145_1145delT, c.1093C>G, c.1121T>G, c.1137_1137delG, c.1135_1136insT, and c.1091_1092insT) were detected. Among these mutations, four were frameshift (V382Gfs*12, A381Lfs*13, K379Ifs*6, and K364Nfs*12) mutations and showed the potential of non–sense-mediated mRNA decay (NMD) in computational analysis. The majority of patients showed molecular deregulation of EPAS1 [45% (n = 36/80) DNA amplification, 42.5% (n = 34/80) DNA deletion, as well as 53.7% (n = 43/80) high mRNA expression, 20% (n = 16/80) low mRNA expression]. These alterations of EPAS1 were associated with tumor location and T stages. Patients with stage III ESCC having EPAS1 DNA amplification had poorer survival rates in comparison to EPAS1 DNA deletion (p = 0.04). In addition, suppression of EPAS1 in ESCC cells showed reduced proliferation, wound healing, migration, and invasion in comparison to that of control cells. Thus, the molecular and functional studies implied that EPAS1 plays crucial roles in the pathogenesis of ESCC and has the potential to be used as a prognostic marker and as a therapeutic target.
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Affiliation(s)
- Farhadul Islam
- School of Biomedical Sciences, Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia.,Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, Bangladesh
| | - Vinod Gopalan
- School of Medicine, Griffith University, Gold Coast Campus, Gold Coast, QLD, Australia
| | - Simon Law
- Department of Surgery, University of Hong Kong, Hong Kong, China
| | - Alfred K Lam
- School of Medicine, Griffith University, Gold Coast Campus, Gold Coast, QLD, Australia
| | - Suja Pillai
- School of Biomedical Sciences, Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia
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Maroof H, Irani S, Arianna A, Vider J, Gopalan V, Lam AKY. Interactions of Vascular Endothelial Growth Factor and p53 with miR-195 in Thyroid Carcinoma: Possible Therapeutic Targets in Aggressive Thyroid Cancers. Curr Cancer Drug Targets 2020; 19:561-570. [PMID: 29956628 DOI: 10.2174/1568009618666180628154727] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [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: 12/16/2017] [Revised: 05/27/2018] [Accepted: 06/01/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND The clinical pathological features, as well as the cellular mechanisms of miR-195, have not been investigated in thyroid carcinoma. OBJECTIVE The aim of this study is to identify the interactions of vascular endothelial growth factor (VEGF), p53 and miR-195 in thyroid carcinoma. The clinical and pathological features of miR-195 were also investigated. METHODS The expression levels of miR-195 were identified in 123 primary thyroid carcinomas, 40 lymph nodes with metastatic papillary thyroid carcinomas and seven non-neoplastic thyroid tissues (controls) as well as two thyroid carcinoma cell lines, B-CPAP (from metastasizing human papillary thyroid carcinoma) and MB-1 (from anaplastic thyroid carcinoma), by the real-time polymerase chain reaction. Using Western blot and immunofluorescence, the effects of exogenous miR-195 on VEGF-A and p53 protein expression levels were examined. Then, cell cycle and apoptosis assays were performed to evaluate the roles of miR-195 in cell cycle progression and apoptosis. RESULTS The expression of miR-195 was downregulated in majority of the papillary thyroid carcinoma tissue as well as in cells. Introduction of exogenous miR-195 resulted in downregulation of VEGF-A and upregulation of p53 protein expressions. Upregulation of miR-195 in thyroid carcinoma cells resulted in cell cycle arrest. Moreover, we demonstrated that miR-195 inhibits cell cycle progression by induction of apoptosis in the thyroid carcinoma cells. CONCLUSION Our findings showed for the first time that miR-195 acts as a tumour suppressor and regulates cell cycle progression and apoptosis by targeting VEGF-A and p53 in thyroid carcinoma. The current study exhibited that miR-195 might represent a potential therapeutic target for patients with thyroid carcinomas having aggressive clinical behaviour.
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Affiliation(s)
- Hamidreza Maroof
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland, Australia
| | - Soussan Irani
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland, Australia.,Dental Research Centre, Research Centre for Molecular Medicine, Oral Pathology Department, Dental Faculty, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Armin Arianna
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland, Australia
| | - Jelena Vider
- School of Medical Science, Griffith University, Gold Coast, Queensland, Australia
| | - Vinod Gopalan
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland, Australia.,School of Medical Science, Griffith University, Gold Coast, Queensland, Australia
| | - Alfred King-Yin Lam
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland, Australia
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Lee KTW, Islam F, Vider J, Martin J, Chruścik A, Lu CT, Gopalan V, Lam AKY. Overexpression of family with sequence similarity 134, member B (FAM134B) in colon cancers and its tumor suppressive properties in vitro. Cancer Biol Ther 2020; 21:954-962. [PMID: 32857678 DOI: 10.1080/15384047.2020.1810535] [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] [Indexed: 01/11/2023] Open
Abstract
This study aims to investigate the overexpression-induced properties of tumor suppressor FAM134B (family with sequence similarity 134, member B) in colon cancer, examine the potential gene regulators of FAM134B expression and its impact on mitochondrial function. FAM134B was overexpressed in colon cancer and non-neoplastic colonic epithelial cells. Various cell-based assays including apoptosis, cell cycle, cell proliferation, clonogenic, extracellular flux and wound healing assays were performed. Western blot analysis was used to confirm and identify potential interacting partners of FAM134B in vitro. Immunohistochemistry and qPCR were employed to determine the expressions of MIF and FAM134B, respectively, on 63 patients with colorectal carcinoma. Results showed that FAM134B is involved in the cell cycle and mitochondrial function of colon cancer. Overexpression of FAM134B was coupled with increased expression levels of APC, p53, and MIF. Increased expression of both APC and p53 further validates the potential role of tumor suppressor FAM134B in regulating cancer progression through the WNT/ß-catenin signaling pathway. In approximately 70% of the patients with colorectal cancer, FAM134B downregulation was correlated with MIF protein overexpression while the remaining 30% showed concurrent expression of FAM134B and MIF (P = .045). High expression of MIF coupled with low expression of FAM134B is associated with microsatellite instability status in colorectal carcinomas (P = .049). FAM134B may exert its tumor suppressive function through affecting cell cycle, mitochondrial function via potentially interacting with MIF and p53.
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Affiliation(s)
- Katherine Ting-Wei Lee
- Cancer Molecular Pathology, School of Medicine, Griffith University , Gold Coast, Australia
| | - Farhadul Islam
- Cancer Molecular Pathology, School of Medicine, Griffith University , Gold Coast, Australia.,Department of Biochemistry and Molecular Biology, University of Rajshahi , Rajshahi, Bangladesh
| | - Jelena Vider
- School of Medical Science, Griffith University , Gold Coast, Australia
| | - Jeremy Martin
- Cancer Molecular Pathology, School of Medicine, Griffith University , Gold Coast, Australia
| | - Anna Chruścik
- Cancer Molecular Pathology, School of Medicine, Griffith University , Gold Coast, Australia
| | - Cu-Tai Lu
- Department of Surgery, Gold Coast University Hospital , Gold Coast, Australia
| | - Vinod Gopalan
- Cancer Molecular Pathology, School of Medicine, Griffith University , Gold Coast, Australia
| | - Alfred Kin-Yan Lam
- Cancer Molecular Pathology, School of Medicine, Griffith University , Gold Coast, Australia
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Hamid FB, Islam F, Lu CT, Matos M, Cheng T, Gopalan V, Lam AKY. Abstract 5367: Identification and clinical value of the circulating tumor cells (CTCs) in the colorectal cancer. Cancer Res 2020. [DOI: 10.1158/1538-7445.am2020-5367] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
The number of circulating tumor cells (CTCs) hase been found as a promising predictive and diagnostic biomarker of colorectal cancer (CRC). The purpose of the study was to enumerate and characterize CTCs from the CRC patients and evaluate the correlation with the clinical stages.Peripheral blood from 57 CRC patients and 6 healthy donors were subjected to isolate CTC by a negative selection (EasySepTM) method. The CTCs were detected by the immunofluorescence staining with the tumor cell markers such as epithelial cell adhesion molecule (EPCAM) and cytokeratin (CK) antibodies and counted them. The extent of positive expressions of EPCAM and cytokeratin (CK) proteins were used to characterize the CTCs and the subpopulations were correlated with the tumor stages of the CRC patients. P<0.05 was considered as statistically significant.CTCs were detected in 72% (41/57) of the CRC patients. Comparing to the healthy donors (HD), the CTC count was higher (p=0.0062) in the CRC patients. In addition, CTC clusters were found in 32% (18/57) of patients with CRC while total CTCs were significantly higher than the cluster count (p=0.001). Among the CRC patients, CTCs were more abundant in the advanced stages compared to the early stages (p=0.0019). Moreover, we found the length of the individual CTCs were significantly larger than the CTCs in the cluster (p<0.0001) and significantly correlated (p=0.036) with the tumor stages. However, we identified the EPCAMPosCkPos subclones in 38 (93%) out of 41 CTC positive cases and a median of 8.0 (range: 0-60) CTCs were counted. In contrast, EPCAMPosCkNeg subpopulations were detected in 27 (66%) patients and the median CTC count was 2.0 (range: 0-18). Interestingly, EPCAMPosCkPos CTC subclones were significantly higher (p=0.011) than EPCAMPosCkNeg subclones, and the number of EPCAMPosCkPos CTCs was merely associated (p=0.0068) with the tumor stages. We conclude that the morphological and phenotypic features of the CTCs are closely relevant to the clinical stages, which could provide vital information to improve the patient stratification and treatment selection.
Citation Format: Faysal-Bin Hamid, Farhad Islam, Cu-Tai Lu, Marco Matos, Tracie Cheng, Vinod Gopalan, Alfred King-yin Lam. Identification and clinical value of the circulating tumor cells (CTCs) in the colorectal cancer [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 5367.
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Affiliation(s)
| | | | - Cu-Tai Lu
- 2Gold Coast University Hospital, Gold Coast, Australia
| | - Marco Matos
- 2Gold Coast University Hospital, Gold Coast, Australia
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Gounden S, Chan E, Ho D, Gopalan V, Lam AK. Evaluating self reported student competency in clinically integrated histopathology using a multi-station based and student-centred approach in graduate medical education. Pathology 2020. [DOI: 10.1016/j.pathol.2020.01.242] [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: 10/25/2022]
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Islam F, Gopalan V, Lam AK, Kabir SR. Kaempferia rotunda tuberous rhizome lectin induces apoptosis and growth inhibition of colon cancer cells in vitro. Int J Biol Macromol 2019; 141:775-782. [DOI: 10.1016/j.ijbiomac.2019.09.051] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 08/24/2019] [Accepted: 09/06/2019] [Indexed: 12/18/2022]
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Abstract
BACKGROUND There is emerging data suggesting that the non-coding RNA (microRNA 193a or miR-193a) plays key roles in different types of cancers. OBJECTIVE This review aims to investigate the functional significance of miR-193a in different cancers according to the information of literature. METHOD All the literature concerning miR-193a in cancer in PubMed are analysed. RESULTS Several studies proved the association of miR-193a expression patterns with cancer's stages, grades, response to the chemotherapy and even patient survival. Also, miR-193a can be used to differentiate some types of cancer. In cancer, miR-193a can act as a tumour suppressor gene or as an oncogene. Till now, several genetic factors (MAX, RXR α, XB130, P63, P73, AEG-1, HIFs, EGFR, Drosha, DGCR8, Dicer) and epigenetic factors (DNA methylation and long non-coding RNAs) were predicted to control miR-193a expression. They have fundamental effects on its biological behaviour in different types of cancers. CONCLUSION miR-193a has significant roles in cancer and can be targeted in the future for cancer therapy by better understanding of the factors that control its biological behaviour.
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Affiliation(s)
- Afraa Mamoori
- Cancer Molecular Pathology, School of Medicine, Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
| | - Vinod Gopalan
- Cancer Molecular Pathology, School of Medicine, Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
| | - Alfred K-Y Lam
- Cancer Molecular Pathology, School of Medicine, Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
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Leung PHM, Subramanya R, Mou Q, Lee KTW, Islam F, Gopalan V, Lu CT, Lam AKY. Characterization of Mucosa-Associated Microbiota in Matched Cancer and Non-neoplastic Mucosa From Patients With Colorectal Cancer. Front Microbiol 2019; 10:1317. [PMID: 31244818 PMCID: PMC6581718 DOI: 10.3389/fmicb.2019.01317] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 05/27/2019] [Indexed: 12/21/2022] Open
Abstract
Colonic microbiota play important roles in the development of colorectal cancer. We aim to characterise the mucosa-associated microbiota in the tumour as well as the matched non-neoplastic mucosa from patients with colorectal cancer. Microbiota profiling in these samples was done using high-throughput 16S rRNA amplicon sequencing. Our results showed that the microbiota richness and diversity were similar between the tumour and non-neoplastic mucosae. Linear discriminant analysis effect size (LEfSe) analysis identified Fusobacterium and Campylobacter as the key genera of the tumour while Brevundimonas as the key genus of the non-neoplastic mucosa. In patients with shorter survival period, the relative abundance of Fusobacterium and Campylobacter was significantly higher in the tumour. Besides, regardless of the sites, tumour showed higher abundance of Fusobacterium. On the other hand, the relative abundance of Brevundimonas was significantly lower in the tumour. When validated with quantitative ddPCR, we found the absolute numbers of both Fusobacterium and F. nucleatum were significantly higher in the carcinoma from patients with shorter survival period, conventional type of adenocarcinoma in the distal portion of the large intestine (descending colon, sigmoidal colon, and rectum). In conclusion, our study showed a compositional alteration in the mucosa-associated microbiota in the tumour, which may contribute to the progression of colorectal cancer.
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Affiliation(s)
- Polly H M Leung
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, China
| | - Rao Subramanya
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, China
| | - Qianqian Mou
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, China
| | - Katherine Ting-Wei Lee
- Pathology, School of Medicine, Gold Coast Campus, Griffith University, Gold Coast, QLD, Australia
| | - Farhadul Islam
- Pathology, School of Medicine, Gold Coast Campus, Griffith University, Gold Coast, QLD, Australia.,Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, Bangladesh
| | - Vinod Gopalan
- Pathology, School of Medicine, Gold Coast Campus, Griffith University, Gold Coast, QLD, Australia
| | - Cu-Tai Lu
- Department of Surgery, Gold Coast University Hospital, Gold Coast, QLD, Australia
| | - Alfred King-Yin Lam
- Pathology, School of Medicine, Gold Coast Campus, Griffith University, Gold Coast, QLD, Australia
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Stoica VA, Laanait N, Dai C, Hong Z, Yuan Y, Zhang Z, Lei S, McCarter MR, Yadav A, Damodaran AR, Das S, Stone GA, Karapetrova J, Walko DA, Zhang X, Martin LW, Ramesh R, Chen LQ, Wen H, Gopalan V, Freeland JW. Optical creation of a supercrystal with three-dimensional nanoscale periodicity. Nat Mater 2019; 18:377-383. [PMID: 30886403 DOI: 10.1038/s41563-019-0311-x] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 02/04/2019] [Indexed: 06/09/2023]
Abstract
Stimulation with ultrafast light pulses can realize and manipulate states of matter with emergent structural, electronic and magnetic phenomena. However, these non-equilibrium phases are often transient and the challenge is to stabilize them as persistent states. Here, we show that atomic-scale PbTiO3/SrTiO3 superlattices, counterpoising strain and polarization states in alternate layers, are converted by sub-picosecond optical pulses to a supercrystal phase. This phase persists indefinitely under ambient conditions, has not been created via equilibrium routes, and can be erased by heating. X-ray scattering and microscopy show this unusual phase consists of a coherent three-dimensional structure with polar, strain and charge-ordering periodicities of up to 30 nm. By adjusting only dielectric properties, the phase-field model describes this emergent phase as a photo-induced charge-stabilized supercrystal formed from a two-phase equilibrium state. Our results demonstrate opportunities for light-activated pathways to thermally inaccessible and emergent metastable states.
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Affiliation(s)
- V A Stoica
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, USA
| | - N Laanait
- Center for Nanophase Materials Sciences, Oak Ridge, TN, USA
| | - C Dai
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, USA
| | - Z Hong
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, USA
| | - Y Yuan
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, USA
| | - Z Zhang
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA
| | - S Lei
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, USA
| | - M R McCarter
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | - A Yadav
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | - A R Damodaran
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | - S Das
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | - G A Stone
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, USA
| | - J Karapetrova
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA
| | - D A Walko
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA
| | - X Zhang
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA
| | - L W Martin
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - R Ramesh
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - L-Q Chen
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, USA
| | - H Wen
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA
| | - V Gopalan
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, USA.
| | - J W Freeland
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA.
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Lee KTW, Vider J, Tang JCO, Gopalan V, Lam AKY. GAEC1drives colon cancer progression. Mol Carcinog 2019; 58:1145-1154. [DOI: 10.1002/mc.22998] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 02/12/2019] [Accepted: 02/18/2019] [Indexed: 02/06/2023]
Affiliation(s)
| | - Jelena Vider
- Department of Histopathology; School of Medical Science, Griffith University; Gold Coast Queensland Australia
| | - Johnny Cheuk-On Tang
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hong Kong China
| | - Vinod Gopalan
- School of Medicine, Griffith University; Gold Coast Queensland Australia
- Department of Histopathology; School of Medical Science, Griffith University; Gold Coast Queensland Australia
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Islam F, Gopalan V, Law S, Tang JCO, Lam AKY. FAM134B promotes esophageal squamous cell carcinoma in vitro and its correlations with clinicopathologic features. Hum Pathol 2019; 87:1-10. [PMID: 30794892 DOI: 10.1016/j.humpath.2018.11.033] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 11/07/2018] [Accepted: 11/12/2018] [Indexed: 01/06/2023]
Abstract
Family with sequence similarity 134, member B (FAM134B) is an autophagy regulator of endoplasmic reticulum first discovered to be involved in the pathogenesis of esophageal squamous cell carcinoma (ESCC). The present study examined the functional behavior of FAM134B in cancer cells and the association of FAM134B expression with clinicopathologic factors in patients with ESCC. Expression at both the mRNA and protein levels was investigated using real-time polymerase chain reaction and immunohistochemistry. The results were correlated with the clinical and pathological features of the patients. In addition, in vitro functional assays were used to investigate the roles of FAM134B in ESCC cells in response to gene silencing with shRNA lentiviral particles. Overexpression of FAM134B mRNA and protein was present in 31.2% (n = 29/93) and 36.6% (n = 41/112), respectively, in tumors, whereas downregulation occurred in 39.8% (n = 37/93) and 63.4% (n = 71/112), respectively. Expression of FAM134B protein in ESCC correlated with histologic grade (P = .002) and pathologic stage (P = .012). In vitro suppression of FAM134B in ESCC induced significant reductions of cell proliferation and colony formation (P < .05). In addition, suppression of FAM134B caused reduction of wound healing, migration, and invasion capacities of ESCC. To conclude, FAM134B could play crucial roles in the initiation and progression of ESCC, and FAM134B protein expression has potential predictive value. Therefore, development of strategies targeting FAM134B could have therapeutic value in the management of patients with ESCC.
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Affiliation(s)
- Farhadul Islam
- Department of Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland, Australia; Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Vinod Gopalan
- Department of Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland, Australia
| | - Simon Law
- Department of Surgery, The University of Hong Kong, Hong Kong (SAR), People's Republic of China
| | - Johnny Cheuk-On Tang
- State Key Laboratory of Chirosciences, Lo Ka Chung Centre for Natural Anti-cancer Drug Development, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong.
| | - Alfred King-Yin Lam
- Department of Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Queensland, Australia.
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Abstract
While circulating tumor cells (CTCs) within peripheral blood of cancer patients are no new phenomenon in many carcinomas, there is a lack of information on the biological and clinical implications of CTCs in esophageal adenocarcinomas. Limited evidence suggests that the CTCs are frequently detected in esophageal adenocarcinomas when compared to esophageal squamous cell carcinoma suggesting the potential difference in the pathogenesis between these two carcinomas. In addition, the varied CTC levels between adenocarcinoma and squamous cell carcinomas of the esophagus could be attributed to the varied expression pattern of epithelial markers such as epithelial cell adhesion molecule (EpCAM) and cytokeratin (CK). In esophageal adenocarcinomas, CTC levels correlated with pathological T stages, lymph node metastasis, and patient survival. Thus, detection of CTCs potentially acts as a noninvasive and real-time biomarker for predicting patient prognosis in esophageal adenocarcinomas. Although the CTC detection is currently performed using various methods, the only Food and Drug Administration (FDA) of USA approved CTC detection method in clinics is the CELLSEARCH® system. This chapter will discuss various biological characteristics of CTC and its potential implications in esophageal adenocarcinomas. In addition, a quick overview of CTC detection methodology is outlined.
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Affiliation(s)
- Vinod Gopalan
- Cancer Molecular Pathology of School of Medicine, Griffith University, Gold Coast, Australia.
| | - Alfred K Lam
- Cancer Molecular Pathology of School of Medicine, Griffith University, Gold Coast, Australia
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Boriachek K, Umer M, Islam MN, Gopalan V, Lam AK, Nguyen NT, Shiddiky MJA. An amplification-free electrochemical detection of exosomal miRNA-21 in serum samples. Analyst 2019; 143:1662-1669. [PMID: 29512659 DOI: 10.1039/c7an01843f] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Recent evidence suggests that small non-coding RNAs such as microRNA (miRNA) encapsulated in exosomes represent an important mechanism of communication between the cells. Exosomal miRNAs play an important role in carcinogenesis via enhancing the cell to cell communication and targeting the cell growth molecular pathways which in turn facilitate metastasis in cancers. Despite progressive advances, the current methods for the exosomal miRNA detection mostly rely on labor-intensive sequencing approaches which are often prone to amplification bias and require costly and bulky equipment. Herein, we report an electrochemical approach for the detection of cancer-derived exosomal miRNAs in human serum samples by selectively isolating the target miRNA using magnetic beads pre-functionalized with capture probes and then directly adsorbing the targets onto a gold electrode surface. The level of adsorbed miRNA is detected electrochemically in the presence of an [Fe(CN)6]4-/3- redox system. This method enabled an excellent detection sensitivity of 1.0 pM with a relative standard deviation (%RSD) of <5.5% in cancer cells and serum samples (n = 8) collected from patients with colorectal adenocarcinoma (CRC). We believe that our approach could be useful in clinical settings for the quantification of exosomal miRNA in cancer patients.
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Affiliation(s)
- Kseniia Boriachek
- School of Environment and Science, Griffith University, Nathan Campus, QLD 4111, Australia.
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Lee KTW, Gopalan V, Lam AKY. Roles of long-non-coding RNAs in cancer therapy through the PI3K/Akt signalling pathway. Histol Histopathol 2019; 34:593-609. [PMID: 30620381 DOI: 10.14670/hh-18-081] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The vital need for Akt in maintaining basic cellular function has highlighted its importance in carcinogenesis. Unfortunately, Akt inhibitor development outcome has remained poor, as most of them have failed to show significant clinical benefit to cancer patients during the clinical trials. Recently, a new class of non-coding RNAs, known as long non-coding RNAs (lncRNAs), which show high tissue specificity, have demonstrated great influence in cancer progression and/or cancer inhibition. As both Akt signalling pathways and lncRNAs play such innate roles in carcinogenesis, identifying the specific roles that these lncRNAs play within this pathway may represent a novel research avenue for developing Akt inhibitors with better therapeutic properties. In addition, understanding the diverse mechanism by which lncRNAs regulate gene expression can assist in deciphering the fundamentals of carcinogenesis. The focus of interest should be on the lncRNAs, which affect Akt and finding the link between lncRNAs and Akt pathways associated with carcinogenesis. LncRNAs within the Akt pathways could affect multiple pathways in a particular cancer type, which ultimately creates an intricate web of connections between the pathways. In summary, lncRNAs have tremendous potential in cancer diagnosis, assessing cancer patient prognosis and in developing new therapeutic options for patients with resistance to current cancer therapies. Thus, understanding how lncRNAs influence the Akt pathway is essential for the development of novel and effective cancer therapies.
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Affiliation(s)
- Katherine Ting-Wei Lee
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Australia
| | - Vinod Gopalan
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Australia
| | - Alfred King-Yin Lam
- Cancer Molecular Pathology, School of Medicine, Griffith University, Gold Coast, Australia.
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Mahdavi M, Nassiri M, Kooshyar MM, Vakili‐Azghandi M, Avan A, Sandry R, Pillai S, Lam AK, Gopalan V. Hereditary breast cancer; Genetic penetrance and current status with BRCA. J Cell Physiol 2018; 234:5741-5750. [DOI: 10.1002/jcp.27464] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 08/29/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Morteza Mahdavi
- Institute of Biotechnology, Ferdowsi University of Mashhad Mashhad Iran
| | | | | | | | - Amir Avan
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences Mashhad Iran
- Cancer Research Center and Surgical Oncology Research Center, Mashhad University of Medical Sciences Mashhad Iran
- School of Medicine, Griffith University Gold Coast QLD
| | - Ryan Sandry
- Department of Modern Sciences and Technologies Faculty of Medicine, Mashhad University of Medical Sciences Mashhad Iran
| | - Suja Pillai
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland Brisbane Australia
| | | | - Vinod Gopalan
- Department of Modern Sciences and Technologies Faculty of Medicine, Mashhad University of Medical Sciences Mashhad Iran
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Haque MH, Bhattacharjee R, Islam MN, Gopalan V, Nguyen NT, Lam AK, Shiddiky MJA. Colorimetric and electrochemical quantification of global DNA methylation using a methyl cytosine-specific antibody. Analyst 2018; 142:1900-1908. [PMID: 28516982 DOI: 10.1039/c7an00526a] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We report a simple colorimetric (naked-eye) and electrochemical method for the rapid, sensitive and specific quantification of global methylation levels using only 25 ng of input DNA. Our approach utilises a three-step strategy; (i) initial adsorption of the extracted, purified and denatured bisulfite-treated DNA on a screen-printed gold electrode (SPE-Au), (ii) immuno-recognition of methylated DNA using a horseradish peroxidase (HRP)-conjugated methylcytosine (HRP-5mC) antibody and (iii) subsequent colorimetric detection by the enzymatic oxidation of 3,3',5,5'-tetramethylbenzidin (TMB)/H2O2 which generated a blue-coloured product in the presence of methylated DNA and HRP-5mC immunocomplex. As TMB(ox) is electroactive, it also produces detectable amperometric current at +150 mV versus a Ag pseudo-reference electrode (electrochemical detection). The assay could successfully differentiate 5-aza-2'-deoxycytidine drug-treated and untreated Jurkat DNA samples. It showed good reproducibility (relative standard deviation (% RSD) = <5%, for n = 3) with fairly good sensitivity (as low as 5% difference in methylation levels) and specificity while analysing various levels of global DNA methylation in synthetic samples and cell lines. The method has also been tested for analysing the methylation level in fresh tissue samples collected from eight patients with oesophageal squamous cell carcinoma. We believe that this assay could be potentially useful as a low-cost alternative for genome-wide DNA methylation analysis in point-of-care applications.
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Affiliation(s)
- Md Hakimul Haque
- Cancer Molecular Pathology laboratory in Menzies Health Institute Queensland, Griffith University and School of Medicine, Gold Coast, QLD 4222, Australia.
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Islam F, Gopalan V, Lam AKY, Kabir SR. Pea lectin inhibits cell growth by inducing apoptosis in SW480 and SW48 cell lines. Int J Biol Macromol 2018; 117:1050-1057. [DOI: 10.1016/j.ijbiomac.2018.06.021] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 06/05/2018] [Indexed: 12/23/2022]
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Gopalan V, Kasem K, Pillai S, Olveda D, Ariana A, Leung M, Lam AKY. Evaluation of multidisciplinary strategies and traditional approaches in teaching pathology in medical students. Pathol Int 2018; 68:459-466. [PMID: 30043440 DOI: 10.1111/pin.12706] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 06/22/2018] [Indexed: 11/28/2022]
Abstract
This study aims to evaluate the impact on the implementation of multiple strategies to improve medical student's pathology learning experience. In two consecutive years, medical students after a whole year of enrolling in pathology teaching, were invited to complete questionnaires rating and commenting on the personal learning experience of multiple teaching resources delivered in pathology. In both years, the overall score was high (mean score = 4.57 ± 0.63 /5) for the newly introduced sessions, namely histology lectures, clinical integrations and virtual microscopy pre-practical sessions. However, this was only marginally different from that of traditional practical (mean = 4.37 ± 0.68/5) and pathology lecture sessions (mean = 4.42 ± 0.61 /5). In addition, 53% positive correlation was noted for the overall responses between virtual microscopy guided pathology modules and practical sessions indicating the benefit of virtual microscopy in better preparing students for these sessions (P < 0.001). Qualitative comments suggested that the virtual microscopy sessions along with clinical scenario based learning were extremely useful for students' learning in pathology. To conclude, a multidisciplinary approach by clinical integration and flexibility in the mode of delivery by the use of virtual microscopy has the potential to better engage students to the learning of pathology.
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Affiliation(s)
- Vinod Gopalan
- Pathology, School of Medicine, Griffith University, Gold Coast
| | - Kais Kasem
- Pathology, School of Medicine, Griffith University, Gold Coast
- Faculty of Medicine, School of Biomedical Science, University of Queensland, Queensland
| | - Suja Pillai
- Pathology, School of Medicine, Griffith University, Gold Coast
- Faculty of Medicine, School of Biomedical Science, University of Queensland, Queensland
| | - David Olveda
- Pathology, School of Medicine, Griffith University, Gold Coast
| | - Armin Ariana
- Pathology, School of Medicine, Griffith University, Gold Coast
| | - Melissa Leung
- Pathology, School of Medicine, Griffith University, Gold Coast
| | - Alfred K Y Lam
- Pathology, School of Medicine, Griffith University, Gold Coast
- Pathology Queensland, Gold Coast University Hospital, Gold Coast, Australia
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Islam F, Chaousis S, Wahab R, Gopalan V, Lam AK. Protein interactions of FAM134B with EB1 and APC/beta‐catenin in vitro in colon carcinoma. Mol Carcinog 2018; 57:1480-1491. [DOI: 10.1002/mc.22871] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 06/25/2018] [Accepted: 06/28/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Farhadul Islam
- Cancer Molecular PathologySchool of Medicine Menzies Health Institute QueenslandGriffith UniversityGold CoastQueenslandAustralia
- Department of Biochemistry and Molecular BiologyUniversity of RajshahiRajshahiBangladesh
| | - Stephanie Chaousis
- Australian Rivers Institute and School of EnvironmentGriffith UniversityGold CoastQueenslandAustralia
| | - Riajul Wahab
- Cancer Molecular PathologySchool of Medicine Menzies Health Institute QueenslandGriffith UniversityGold CoastQueenslandAustralia
| | - Vinod Gopalan
- Cancer Molecular PathologySchool of Medicine Menzies Health Institute QueenslandGriffith UniversityGold CoastQueenslandAustralia
- School of Medical ScienceMenzies Health Institute QueenslandGriffith UniversityGold CoastQueenslandAustralia
| | - Alfred K.‐Y. Lam
- Cancer Molecular PathologySchool of Medicine Menzies Health Institute QueenslandGriffith UniversityGold CoastQueenslandAustralia
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