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Al-Salam S, Jagadeesh GS, Sudhadevi M, Yasin J. Galectin-3 and Autophagy in Renal Acute Tubular Necrosis. Int J Mol Sci 2024; 25:3604. [PMID: 38612416 PMCID: PMC11012141 DOI: 10.3390/ijms25073604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/21/2024] [Accepted: 02/26/2024] [Indexed: 04/14/2024] Open
Abstract
Acute kidney injury (AKI) is a public health burden with increasing morbidity and mortality rates and health care costs. Acute tubular necrosis (ATN) is the most common cause of AKI. Cisplatin (CIS) is a platinum-based chemotherapeutic agent used in the treatment of a wide variety of malignancies such as lung, breast, ovary, testis, bladder, cervix, and head and neck cancers. Autophagy plays an important role in AKI. Galectin-3 (Gal-3) is significantly increased in renal tubules in AKI; however, its role in autophagy is not well understood. Male C57B6/J and B6.Cg-Lgals3 /J Gal-3 knockout (KO) mice were used to induce AKI using a CIS mouse model of ATN. Renal Gal-3 and autophagy proteins' expression were measured using standard histologic, immunofluorescent, and enzyme-linked immunosorbent assay techniques. The data were presented as the mean ± S.E. Statistically significant differences (p < 0.05) were calculated between experimental groups and corresponding control groups by one-way analysis of variance. There was a significant increase in renal concentrations of Gal-3 in the Gal-3 wild-type CIS-treated mice when compared with sham control mice. There were significantly higher concentrations of renal LC3B, ATG13, Ulk-1, Beclin, ATG5, ATG12, ATG9A, and p-AMPK in the CIS-treated Gal-3 KO mice than in the Gal-3 wild-type CIS-treated mice. Further, there were significantly higher concentrations of mTOR, p- NF-κB, beta-catenin, and p62 in the kidneys of the Gal-3 wild-type CIS-treated mice than in the Gal-3 KO CIS-treated mice. Our findings affirm the connection between Gal-3 and autophagy, revealing its central role as a connector with prosurvival signaling proteins. Gal-3 plays a pivotal role in orchestrating cellular responses by interacting with prosurvival signal pathways and engaging with autophagy proteins. Notably, our observations highlight that the absence of Gal-3 can enhance autophagy in CIS-induced ATN.
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Affiliation(s)
- Suhail Al-Salam
- Department of Pathology, College of Medicine and Health Sciences, United Arab Emirates University, Alain P.O. Box 15551, United Arab Emirates
| | - Govindan S. Jagadeesh
- Department of Pathology, College of Medicine and Health Sciences, United Arab Emirates University, Alain P.O. Box 15551, United Arab Emirates
| | - Manjusha Sudhadevi
- Department of Pathology, College of Medicine and Health Sciences, United Arab Emirates University, Alain P.O. Box 15551, United Arab Emirates
| | - Javed Yasin
- Department of Internal Medicine, College of Medicine and Health Sciences, United Arab Emirates University, Alain P.O. Box 15551, United Arab Emirates
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Gajula SNR, Khairnar AS, Jock P, Kumari N, Pratima K, Munjal V, Kalan P, Sonti R. LC-MS/MS: A sensitive and selective analytical technique to detect COVID-19 protein biomarkers in the early disease stage. Expert Rev Proteomics 2023; 20:5-18. [PMID: 36919634 DOI: 10.1080/14789450.2023.2191845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
INTRODUCTION The COVID-19 outbreak has put enormous pressure on the scientific community to detect infection rapidly, identify the status of disease severity, and provide an immediate vaccine/drug for the treatment. Relying on immunoassay and a real-time reverse transcription polymerase chain reaction (rRT-PCR) led to many false-negative and false-positive reports. Therefore, detecting biomarkers is an alternative and reliable approach for determining the infection, its severity, and disease progression. Recent advances in liquid chromatography and mass spectrometry (LC-MS/MS) enable the protein biomarkers even at low concentrations, thus facilitating clinicians to monitor the treatment in hospitals. AREAS COVERED This review highlights the role of LC-MS/MS in identifying protein biomarkers and discusses the clinically significant protein biomarkers such as Serum amyloid A, Interleukin-6, C-Reactive Protein, Lactate dehydrogenase, D-dimer, cardiac troponin, ferritin, Alanine transaminase, Aspartate transaminase, gelsolin and galectin-3-binding protein in COVID-19, and their analysis by LC-MS/MS in the early stage. EXPERT OPINION Clinical doctors monitor significant biomarkers to understand, stratify, and treat patients according to disease severity. Knowledge of clinically significant COVID-19 protein biomarkers is critical not only for COVID-19 caused by the coronavirus but also to prepare us for future pandemics of other diseases in detecting by LC-MS/MS at the early stages.
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Affiliation(s)
- Siva Nageswara Rao Gajula
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Balanagar, India
| | - Ankita Sahebrao Khairnar
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Balanagar, India
| | - Pallavi Jock
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Balanagar, India
| | - Nikita Kumari
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Balanagar, India
| | - Kendre Pratima
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Balanagar, India
| | - Vijay Munjal
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Balanagar, India
| | - Pavan Kalan
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Balanagar, India
| | - Rajesh Sonti
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Balanagar, India
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Wang R, Zhou X, Luo G, Zhang J, Yang M, Song C. CircRNA RERE Promotes the Oxidative Stress-Induced Apoptosis and Autophagy of Nucleus Pulposus Cells through the miR-299-5p/Galectin-3 Axis. JOURNAL OF HEALTHCARE ENGINEERING 2021; 2021:2771712. [PMID: 34956563 PMCID: PMC8695020 DOI: 10.1155/2021/2771712] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 11/25/2021] [Accepted: 12/03/2021] [Indexed: 02/07/2023]
Abstract
Intervertebral disc degeneration (IDD) is widely accepted as a cause of low back pain and related degenerative musculoskeletal disorders. Nucleus pulposus (NP) cell loss is closely related to IDD progression. Thus, investigating the specifically targeted therapeutic agents against NP cell loss depends on understanding the molecular mechanisms. In this study, human NP cells were treated with hydrogen peroxide (H2O2). Cell viability was assessed by using the Cell Counting Kit-8 (CCK-8) kit. The expression of circRNA arginine-glutamic acid dipeptide repeats (hsa_circ_RERE) and miR-299-5p was analyzed by real-time quantitative PCR. Western blot analysis was used to assess the protein expression levels. The autophagy levels in NP cells were detected by using an electronic microscope, LC3B protein immunofluorescence, and western blot. The apoptosis levels of NP cells were detected by flow cytometry and western blot. Dual-luciferase reporter assay analyzed the miR-299-5p bound to circ_RERE and galectin-3. Our results revealed that H2O2 significantly inhibited the viability of NP cells, promoted apoptosis and autophagy, and upregulated galectin-3 expression. miR-299-5p was reduced in IDD and H2O2-induced NP cells. The overexpression of miR-299-5p promoted cell viability and attenuated apoptosis and autophagy under H2O2 treatment. Besides, circ_RERE was upregulated in IDD and H2O2-induced NP cells. However, knockdown of circ_RERE reversed the effects of miR-299-5p overexpression on cell viability, apoptosis, and autophagy in NP cells. We propose that circ_RERE promotes the H2O2-induced apoptosis and autophagy of NP cells through the miR-299-5p/galectin-3 axis and may provide a new target for the clinical treatment of IDD.
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Affiliation(s)
- Rong Wang
- Department of Rehabilitation Medicine, Anningshi First People's Hospital, 2 Henan Road, 650302 Anning, Yunnan, China
| | - Xingchao Zhou
- Equipment Department, The First Affiliated Hospital of Dali University, 32 Jiashibai Road, 671000 Dali, Yunnan, China
| | - Guorui Luo
- Department of Rehabilitation Medicine, Anningshi First People's Hospital, 2 Henan Road, 650302 Anning, Yunnan, China
| | - Jin Zhang
- Department of Rehabilitation Medicine, Anningshi First People's Hospital, 2 Henan Road, 650302 Anning, Yunnan, China
| | - Min Yang
- Department of Rehabilitation Medicine, Anningshi First People's Hospital, 2 Henan Road, 650302 Anning, Yunnan, China
| | - Chao Song
- Pain Management, Anningshi First People's Hospital, 2 Henan Road, 650302 Anning, Yunnan, China
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Aboulhagag NA, El-Deek HEM, Sherif MF. Expression of galectin-1 and galectin-3 in renal cell carcinoma; immunohistochemical study. Ann Diagn Pathol 2018; 36:31-37. [PMID: 30055522 DOI: 10.1016/j.anndiagpath.2018.06.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 05/18/2018] [Accepted: 06/20/2018] [Indexed: 01/20/2023]
Abstract
BACKGROUND AND AIMS Galectins comprise a large family of calcium independent lectins. Galectin-1 and galectin-3 contribute to neoplastic transformation, angiogenesis, and tumor metastasis in some cancers. This study aimed at studying the immunohistochemical expression of both galectin-1 and galectin-3 in renal cell carcinoma (RCC) variants and detecting the possible association of galectins with various clinicopathological parameters. MATERIALS AND METHODS Sections from 67 formalin-fixed paraffin-embedded tissue blocks of RCC variants were stained with galectin-1 and galectin-3. Expression was assessed in tumor tissue and adjacent renal parenchyma and was correlated with clinicopathological criteria. RESULTS In apparently normal renal parenchyma adjacent to tumor tissue, galectin-1 was expressed in 27 (40.2%) of specimens in renal tubules and glomeruli, while 34 (50.7%) of specimens showed galectin-3 expression in renal tubules sparing glomeruli. In tumor tissue, galectin-1 showed high expression in 47 (70.1%) and low expression in 20 (29.9%) of specimens. Galectin-3 had high expression in 15 (22.4%) and low expression in 52 (77.6%) of specimens. Significant association was detected between expression of galectin-1 and galectin-3 and the type of RCC (P = 0.032) and (P = 0.006), respectively. Significant inverse association was detected between the expression of galectin-3 and the presence of tumor haemorrhage and necrosis (P = 0.014) and (P = 0.039), respectively. CONCLUSION Galectin-1 and galectin-3 are overexpressed in RCC with different percentage in different subtypes. Galactin-1expression is more in tumor tissue than surrounding renal parenchyma suggesting that it has a carcinogenic role. Galectin-1 and galectin-3 overexpression in chromophobe RCC suggests that they may have diagnostic role.
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Affiliation(s)
- Noha A Aboulhagag
- Department of Pathology, Faculty of Medicine, Assiut University, Assiut, Egypt.
| | - Heba E M El-Deek
- Department of Pathology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Mahmoud F Sherif
- Department of Pathology, Faculty of Medicine, Assiut University, Assiut, Egypt
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High Expression of Galectin-3 in Patients with IgG4-Related Disease: A Proteomic Approach. PATHOLOGY RESEARCH INTERNATIONAL 2017; 2017:9312142. [PMID: 28593065 PMCID: PMC5448067 DOI: 10.1155/2017/9312142] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 04/24/2017] [Accepted: 04/26/2017] [Indexed: 12/24/2022]
Abstract
Objectives Immunoglobulin G4-related disease (IgG4-RD) is a multiorgan condition manifesting itself in different forms. This study aimed to investigate protein expression profiles and to find the possible biomarker for IgG4-RD by liquid chromatography mass spectrometry (LC-MS) using tissue sections in IgG4-RD patients. Methods Protein expression profiles in five IgG4-related pancreatitis and three normal pancreatic samples were compared using LC-MS and were validated by quantitative real-time PCR (qRT-PCR), immunoblotting, and immunohistochemistry. ELISA was employed in the serum of 20 patients with systemic IgG4-RD before and during steroid treatment. Results LC-MS indicated that the levels of 17 proteins were significantly higher and 12 others were significantly lower in IgG4-related pancreatitis patients compared to controls. Among these proteins, galectin-3 levels were 13-fold higher in IgG4-related pancreatitis (P < 0.01). These results were confirmed by immunoblotting and qRT-PCR. The average number of galectin-3 + cells in various organs of IgG4-RD patients, including salivary glands, lungs, and lymph nodes, was higher than in controls. Galectin-3 was detectable in macrophages, dendritic cells, and stromal myofibroblast-like cells, but not in lymphocytes by immunofluorescence staining. Serum galectin-3 levels were higher in patients with IgG4-RD compared with healthy donors and remained high during steroid therapy. Conclusion Galectin-3 was overexpressed in IgG4-RD and the levels were indirectly related to clinical activity.
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Alvarez-Cubero MJ, Pascual-Geler M, Martinez-Gonzalez LJ, Expósito Ruiz M, Saiz M, Cozar JM, Lorente JA. Association between RNASEL, MSR1, and ELAC2 single nucleotide polymorphisms and gene expression in prostate cancer risk. Urol Oncol 2016; 34:431.e1-8. [PMID: 27318894 DOI: 10.1016/j.urolonc.2016.05.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 03/30/2016] [Accepted: 05/16/2016] [Indexed: 11/27/2022]
Abstract
BACKGROUND There is contradictory evidence of the effects that environmental factors-dietary habits (ingestion rates of red meat, soy products, fish, etc.) and work environment (exposure to metals, pesticides, several toxic products, etc.)-and KLK3, AR, RNASEL, MSR1, and ELAC2 expression patterns have on prostate cancer (PCa). In our study, we investigated the potential association between KLK3, AR, RNASEL, MSR1, and ELAC2 polymorphisms, expression patterns, exposure to environmental factors, and PCa in a Spanish cohort. Blood and fresh tissue samples were collected from 322 subjects with prostate-specific antigen (PSA)>4ng/ml to determine their genotypes (RNASEL, MSR1, and ELAC2) and assess messenger ribonucleic acid expression levels (by quantitative amplification testing). MAIN FINDINGS Among clinical parameters, a 63.6% of patients with CC variants in rs11545302 (ELAC2) had PSA>20ng/ml (P = 0.008), and rs486907 (RNASEL), with 52.8% of patients with CT variants with Gleason score>7. Regarding TNM stage, patients with GG variants, rs4792311 (ELAC2) generally had stage 1 tumors. Genetic expression analysis revealed RNASEL (P = 0.007) was underexpressed in PCa tissue, whereas KLK3 (P = 0.041) was overexpressed. As to environmental factors, the intake of dried fruits (P = 0.036) and practice of sports (P = 0.024) revealed an effect in PCa. Moreover, environmental factors were observed to affect gene expression patterns. Thus, RNASEL (P = 0.018) and ELAC2 (P = 0.023) were found to be underexpressed in patients who ate processed foods frequently; MSR1 (P = 0.024) and AR (P = 0.004) were underexpressed in patients who did not practice sports; and KLK3 (P = 0.039; P = 0.046) underexpressed in patients exposed to dust and toxic products. CONCLUSIONS This is the first study to analyze the correlation between RNASEL, MSR1, and ELAC2 genotypes and messenger ribonucleic acid expression in PCa. RNASEL and KLK3 show different expression patterns in normal vs. tumor tissue, which supports their reported relevance in human cancer. The results obtained confirm that RNASEL plays a crucial role in PCa. Environmental factors such as exercise, exposure to toxic agents, and intake of processed foods are associated with PCa.
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Affiliation(s)
- Maria Jesus Alvarez-Cubero
- Liquid biopsy and metastasis research group and Genomic Unit, GENyO (Pfizer-University of Granada-Andalusian Government Centre for Genomics and Oncological Research), Granada, Spain.
| | | | - Luis Javier Martinez-Gonzalez
- Liquid biopsy and metastasis research group and Genomic Unit, GENyO (Pfizer-University of Granada-Andalusian Government Centre for Genomics and Oncological Research), Granada, Spain
| | - Manuela Expósito Ruiz
- Fundación para la Investigación Biosanitaria de Andalucía Oriental-Alejandro Otero (FIBAO), Hospital Virgen de las Nieves, Granada, Spain
| | - Maria Saiz
- Laboratory of Genetic Identification, Legal Medicine and Toxicology Department, Faculty of Medicine, University of Granada, Granada, Spain
| | - Jose Manuel Cozar
- Service of Urology, University Hospital Virgen de las Nieves, Granada, Spain
| | - Jose Antonio Lorente
- Liquid biopsy and metastasis research group and Genomic Unit, GENyO (Pfizer-University of Granada-Andalusian Government Centre for Genomics and Oncological Research), Granada, Spain; Laboratory of Genetic Identification, Legal Medicine and Toxicology Department, Faculty of Medicine, University of Granada, Granada, Spain
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Zhao Y, Tong L, Li Y, Pan H, Zhang W, Guan M, Li W, Chen Y, Li Q, Li Z, Wang H, Yu XF, Chu PK. Lactose-Functionalized Gold Nanorods for Sensitive and Rapid Serological Diagnosis of Cancer. ACS APPLIED MATERIALS & INTERFACES 2016; 8:5813-20. [PMID: 26883478 DOI: 10.1021/acsami.5b11192] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Timely and accurate diagnosis of cancer is crucial to cancer treatment. However, serological diagnosis of cancer still faces great challenge because the conventional methodology based on the enzyme-linked immune sorbent assay (ELISA) is costly, time-consuming, and complicated, involving multiple steps. Herein, lactose-functionalized gold nanorods (Lac-GNRs) are fabricated as efficient biosensors to detect cancerous conditions based on the unique surface plasmon resonance properties of GNRs and high specificity of lactose to the galectin-1 cancer biomarker. A trace concentration of galectin-1 as small as 10(-13) M can be detected by Lac-GNRs. The comparative study among BSA, galectin-3, and galectin-1 demonstrates the good specificity of Lac-GNRs to galectin-1 either in aqueous solutions or in the complex and heterogeneous serum specimens. Clinical tests show that the Lac-GNRs biosensors can readily distinguish the serums of cancer patients from those of healthy persons simply by using a microplate reader or even direct visual observation. The Lac-GNRs biosensing platform is highly efficient and easy to use and have great potential in rapid screening of cancer patients.
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Affiliation(s)
- Yuetao Zhao
- Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055, Guangdong, China
| | - Liping Tong
- Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055, Guangdong, China
- Department of Physics and Materials Science, City University of Hong Kong , Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Yong Li
- Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055, Guangdong, China
| | - Haobo Pan
- Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055, Guangdong, China
| | - Wei Zhang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Min Guan
- Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055, Guangdong, China
| | - Weihao Li
- Shenzhen People's Hospital/Second Clinical Medical College of Jinan University , Shenzhen 518020, China
| | - Yixin Chen
- Shenzhen People's Hospital/Second Clinical Medical College of Jinan University , Shenzhen 518020, China
| | - Qing Li
- The State Key Laboratory of Natural and Biomimetic Drugs, Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University , Beijing 100191, China
| | - Zhongjun Li
- The State Key Laboratory of Natural and Biomimetic Drugs, Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University , Beijing 100191, China
| | - Huaiyu Wang
- Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055, Guangdong, China
| | - Xue-Feng Yu
- Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Shenzhen 518055, Guangdong, China
| | - Paul K Chu
- Department of Physics and Materials Science, City University of Hong Kong , Tat Chee Avenue, Kowloon, Hong Kong, China
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Zhang X, Schulz BL, Punyadeera C. The current status of heart failure diagnostic biomarkers. Expert Rev Mol Diagn 2016; 16:487-500. [PMID: 26788983 DOI: 10.1586/14737159.2016.1144474] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Heart failure (HF) affects approximately 23 million individuals worldwide and this number is increasing, due to an aging and growing population. Early detection of HF is crucial in the management of this debilitating disease. Current diagnostic methods for HF rely heavily on clinical imaging techniques and blood analysis, which makes them less than ideal for population-based screening purposes. Studies focusing on developing novel biomarkers for HF have utilized various techniques and biological fluids, including urine and saliva. Promising results from these studies imply that these body fluids can be used in evaluating the clinical manifestation of HF and will one day be integrated into a clinical workflow and facilitate HF management.
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Affiliation(s)
- Xi Zhang
- a The School of Biomedical Sciences , Institute of Health and Biomedical Innovations, Queensland University of Technology , Brisbane , Queensland , Australia
| | - Benjamin L Schulz
- b School of Chemistry and Molecular Biosciences , The University of Queensland , Brisbane , Queensland , Australia
| | - Chamindie Punyadeera
- a The School of Biomedical Sciences , Institute of Health and Biomedical Innovations, Queensland University of Technology , Brisbane , Queensland , Australia
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Autophagy, a novel target for chemotherapeutic intervention of thyroid cancer. Cancer Chemother Pharmacol 2013; 73:439-49. [DOI: 10.1007/s00280-013-2363-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Accepted: 11/16/2013] [Indexed: 01/07/2023]
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Rabiau N, Dantal Y, Guy L, Ngollo M, Dagdemir A, Kemeny JL, Terris B, Vieillefond A, Boiteux JP, Bignon YJ, Bernard-Gallon D. Gene panel model predictive of outcome in patients with prostate cancer. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2013; 17:407-13. [PMID: 23758475 DOI: 10.1089/omi.2012.0124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In men at high risk for prostate cancer, established clinical and pathological parameters provide only limited prognostic information. Here we analyzed a French cohort of 103 prostate cancer patients and developed a gene panel model predictive of outcome in this group of patients. The model comprised of a 15-gene TaqMan Low-Density Array (TLDA) card, with gene expressions compared to a standardized reference. The RQ value for each gene was calculated, and a scoring system was developed. Summing all the binary scores (0 or 1) corresponding to the 15 genes, a global score is obtained between 0 and 15. This global score can be compared to Gleason score (0 to 10) by recalculating it into a 0-10 scaled score. A scaled score ≥2 suggested that the patient is suffering from a prostate cancer, and a scaled score ≥7 flagged aggressive cancer. Statistical analyses demonstrated a strongly significant linear correlation (p=3.50E-08) between scaled score and Gleason score for this prostate cancer cohort (N=103). These results support the capacity of this designed 15 target gene TLDA card approach to predict outcome in prostate cancer, opening up a new avenue for personalized medicine through future independent replication and applications for rapid identification of aggressive prostate cancer phenotypes for early intervention.
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Affiliation(s)
- Nadège Rabiau
- Department of Oncogenetics, Centre Jean Perrin, Clermont-Ferrand, France
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