1
|
Toraih EA, Hussein MH, Al Ageeli E, Ellaban M, Kattan SW, Moroz K, Fawzy MS, Kandil E. Matrix Metalloproteinase 9/microRNA-145 Ratio: Bridging Genomic and Immunological Variabilities in Thyroid Cancer. Biomedicines 2023; 11:2953. [PMID: 38001954 PMCID: PMC10669161 DOI: 10.3390/biomedicines11112953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/15/2023] [Accepted: 10/23/2023] [Indexed: 11/26/2023] Open
Abstract
Matrix metalloproteinase 9 (MMP9) and microRNA-145 (miR-145) have emerged as essential biomarkers in thyroid cancer progression and metastasis. However, their combined evaluation and clinical utility as a unified prognostic marker across diverse thyroid cancer subgroups remain unexplored. We investigated the diagnostic and prognostic value of the MMP9/miR-145 ratio in thyroid cancer, hypothesizing it may overcome inter-patient heterogeneity and serve as a versatile biomarker regardless of genetic mutations or autoimmune status. MMP9 and miR-145 expressions were analyzed in 175 paired papillary thyroid cancer (PTC) and normal tissues. Plasma levels were assessed perioperatively and longitudinally over 12-18 months in 86 matched PTC patients. The associations with clinicopathological parameters and patient outcomes were evaluated. MMP9 was upregulated, and miR-145 downregulated in cancer tissues, with a median MMP9/miR-145 ratio 17.6-fold higher versus controls. The tissue ratio accurately diagnosed thyroid malignancy regardless of BRAF mutation or Hashimoto's thyroiditis status, overcoming genetic and autoimmune heterogeneity. A high preoperative circulating ratio predicted aggressive disease features, including lymph node metastasis, extrathyroidal extension, progression/relapse, and recurrence. Although the preoperative plasma ratio was elevated in patients with unfavorable outcomes, it had limited utility for post-surgical monitoring. In conclusion, the MMP9/miR-145 ratio is a promising biomarker in PTC that bridges genetic and immunological variabilities, enhancing preoperative diagnosis and prognostication across diverse patient subgroups. It accurately stratifies heterogenous cases by aggressiveness. The longitudinal trends indicate decreasing applicability for post-thyroidectomy surveillance. Further large-scale validation and protocol standardization can facilitate clinical translation of the MMP9/miR-145 ratio to guide personalized thyroid cancer management.
Collapse
Affiliation(s)
- Eman A. Toraih
- Division of Endocrine and Oncologic Surgery, Department of Surgery, School of Medicine, Tulane University, New Orleans, LA 70112, USA; (M.H.H.); (E.K.)
- Genetics Unit, Department of Histology and Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Mohamed H. Hussein
- Division of Endocrine and Oncologic Surgery, Department of Surgery, School of Medicine, Tulane University, New Orleans, LA 70112, USA; (M.H.H.); (E.K.)
| | - Essam Al Ageeli
- Department of Clinical Biochemistry (Medical Genetics), Faculty of Medicine, Jazan University, Jazan 45142, Saudi Arabia;
| | - Mohamad Ellaban
- Faculty of Medicine, Port Said University, Port Said 42526, Egypt;
| | - Shahd W. Kattan
- Department of Medical Laboratory, College of Applied Medical Sciences, Taibah University, Yanbu 46411, Saudi Arabia;
| | - Krzysztof Moroz
- Department of Pathology and Laboratory Medicine, School of Medicine, Tulane University, New Orleans, LA 70112, USA;
| | - Manal S. Fawzy
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt;
- Department of Biochemistry, Faculty of Medicine, Northern Border University, Arar 91431, Saudi Arabia
| | - Emad Kandil
- Division of Endocrine and Oncologic Surgery, Department of Surgery, School of Medicine, Tulane University, New Orleans, LA 70112, USA; (M.H.H.); (E.K.)
| |
Collapse
|
2
|
Mustafa M, Terair S, Al Ageeli E, Gohal G, Salih S. What are the Attitudes of Medical Students at Jazan University Toward Professionalism? Adv Med Educ Pract 2023; 14:343-354. [PMID: 37057076 PMCID: PMC10089272 DOI: 10.2147/amep.s399888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 03/24/2023] [Indexed: 06/19/2023]
Abstract
PURPOSE We assessed the attitudes of Jazan University medical students toward professionalism and evaluated the associations of those attitudes with demographic factors. MATERIALS AND METHODS Seven hundred ninety-seven respondents (88.85% response rate) out of 898 students who were invited to this study (50.7% were men and 49.3% were women) were studied by their response to the Learner's Attitude of Medical Professionalism Scale (LAMPS) that assess their level of agreement with 28 items, each reflecting a single professionalism competency within the subscales of Altruism, Excellence, Duty/Accountability, Honor/Integrity, and Respect for Others. RESULTS Of 797 respondents (88.85% response rate), 50.7% were men and 49.3% were women. Subscales with high agreement scores were Excellence (median, 21.0; range, 6-30) and Duty/Accountability (median, 21.0; range, 7-35). Subscales with slightly lower agreement scores were Respect for Others (median, 15.0; range, 5-25), Altruism (median, 15.0; range, 5-25), and Honor/Integrity (median, 12.0; range, 5-25). No sex differences were observed for most subscales; however, men gave higher agreement scores on the Excellence subscale, and compared with year 3 respondents (preclinical phase), year 6 respondents (clinical phase) gave higher agreement scores on the Excellence, Altruism, and Respect for Others subscales. CONCLUSION Overall, medical students at Jazan University indicated high agreement with all attitudes to professionalism subscales on the LAMPS.
Collapse
Affiliation(s)
- Mai Mustafa
- Pediatric Department, Faculty of Medicine, Jazan University, Jazan, Jazan, Kingdom of Saudi Arabia
- Medical Education Department, Faculty of Medicine, Jazan University, Jazan, Jazan, Kingdom of Saudi Arabia
| | - Salaheldin Terair
- Medical Education Department, Faculty of Medicine, Jazan University, Jazan, Jazan, Kingdom of Saudi Arabia
| | - Essam Al Ageeli
- Cinical Biochemistry Department, Faculty of Medicine, Jazan University, Jazan, Jazan, Kingdom of Saudi Arabia
| | - Gassem Gohal
- Pediatric Department, Faculty of Medicine, Jazan University, Jazan, Jazan, Kingdom of Saudi Arabia
| | - Sarah Salih
- Family and Community Medicine Department, Faculty of Medicine, Jazan University, Jazan, Jazan, Kingdom of Saudi Arabia
| |
Collapse
|
3
|
AbdAllah NB, Al Ageeli E, Shbeer A, Abdulhakim JA, Toraih EA, Salman DO, Fawzy MS, Nassar SS. Long Non-Coding RNAs ANRIL and HOTAIR Upregulation is Associated with Survival in Neonates with Sepsis in a Neonatal Intensive Care Unit. Int J Gen Med 2022; 15:6237-6247. [PMID: 35898301 PMCID: PMC9309290 DOI: 10.2147/ijgm.s373434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 07/12/2022] [Indexed: 11/23/2022] Open
Abstract
Background Recently, long non-coding RNAs (lncRNAs) have emerged as potential molecular biomarkers for sepsis. We aimed to profile the expression signature of three inflammation-related lncRNAs, MALAT1, ANRIL, and HHOTAIR, in the plasma of neonates with sepsis and correlate these signatures with the phenotype. Patients and Methods This case–control study included 124 neonates with sepsis (88 survivors/36 non-survivors) admitted to the neonatal ICU and 17 healthy neonates. The relative expressions were quantified by real-time PCR and correlated to the clinic-laboratory data. Results The three circulating lncRNAs were upregulated in the cases; the median levels were MALAT1 (median = 1.71, IQR: −0.5 to 3.27), ANRIL (median = 1.09, IQR: 0.89 to 1.30), and HOTAIR (median = 1.83, IQR: 1.44 to 2.41). Co-expression analysis showed that the three studied lncRNAs were directly correlated (all p-values <0.001). Overall and stratification by sex analyses revealed significantly higher levels of the three lncRNAs in non-survivors compared to the survivor group (all p-values <0.001). Principal component analysis showed a clear demarcation between the two study cohorts in males and females. Cohorts with upregulated ANRIL (hazard ratio; HR = 4.21, 95% CI = 1.15–10.4, p=0.030) and HOTAIR (HR = 2.49, 95% CI = 1.02–6.05, p=0.044) were at a higher risk of mortality. Conclusion Circulatory MALAT1, ANRIL, and HOTAIR were upregulated in neonatal sepsis, and the latter two may have the potential as prognostic biomarkers for survival in neonatal sepsis.
Collapse
Affiliation(s)
- Nouran B AbdAllah
- Department of Pediatrics, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Essam Al Ageeli
- Department of Clinical Biochemistry (Medical Genetics), Faculty of Medicine, Jazan University, Jazan, Saudi Arabia
| | - Abdullah Shbeer
- Anesthesiology and Intensive Care, Department of Surgery, Faculty of Medicine, Jazan University, Jazan, Saudi Arabia
| | - Jawaher A Abdulhakim
- Medical Laboratory Department, College of Applied Medical Sciences, Taibah University, Yanbu, Saudi Arabia
| | - Eman A Toraih
- Division of Endocrine and Oncologic Surgery, Department of Surgery, School of Medicine, Tulane University, New Orleans, LA, USA.,Genetics Unit, Department of Histology and Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Doaa O Salman
- Genetics Unit, Department of Histology and Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Manal S Fawzy
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt.,Department of Biochemistry, Faculty of Medicine, Northern Border University, Arar, Saudi Arabia
| | - Sanaa S Nassar
- Department of Pediatrics, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| |
Collapse
|
4
|
Fawzy MS, Toraih EA, Al Ageeli E, Mohamed AM, Abu AlSel BT, Kattan SW, Alelwani W. Group-specific component exon 11 haplotypes (D432E and T436K) and risk of albuminuria in type 2 diabetes mellitus patients. Arch Physiol Biochem 2022; 128:111-120. [PMID: 31532274 DOI: 10.1080/13813455.2019.1665689] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
BACKGROUND Emerging evidence indicates group-specific component (GC) variants are associated with ethnicity. We aimed to investigate the association of GC variants and protein expression level with T2DM and diabetic nephropathy (DN) in Saudi patients. SUBJECTS AND METHODS A total of 200 participants (120 T2DM/80 controls) were genotyped for GC-rs7041/GC-rs4588 by real-time polymerase chain reaction. Serum GC was assessed by ELISA and in silico analysis was executed. RESULTS GC-rs7041 frequency distribution showed no difference between the study groups, while GC-rs4588 showed association with T2DM under all genetic models. rs4588*AA variant was correlated with higher serum GC globulin, albuminuria, and poor glycaemic control. A higher frequency of rs7041*TT and rs4588*AA was evident in macroalbuminuria vs. normoalbuminuria group. Carrying GC-2 haplotype was 2.5 more likely to develop diabetes and correlated with the levels of albuminuria. CONCLUSIONS GC variants could have independent effects on the risk of T2DM and DN in the study population.
Collapse
Affiliation(s)
- Manal S Fawzy
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
- Department of Biochemistry, Faculty of Medicine, Northern Border University, Arar, Saudi Arabia
| | - Eman A Toraih
- Genetics Unit, Histology and Cell Biology Department, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
- Center of Excellence in Molecular and Cellular Medicine, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Essam Al Ageeli
- Department of Clinical Biochemistry (Medical Genetics), Faculty of Medicine, Jazan University, Jazan, Saudi Arabia
| | - Abeer M Mohamed
- Department of Clinical Pathology and Clinical Chemistry, Faculty of Medicine, Sohag University, Sohag, Egypt
- Department of Clinical Laboratory Sciences, Al-Ghad International College for Applied Medical Sciences, Abha, Saudi Arabia
| | - Baraah T Abu AlSel
- Department of Microbiology, Faculty of Medicine, Northern Border University, Arar, Saudi Arabia
| | - Shahad W Kattan
- Department of Medical Laboratory, College of Applied Medical Sciences, Taibah University, Yanbu, Saudi Arabia
| | - Walla Alelwani
- Department of Biochemistry, Faculty of Science, University of Jeddah, Jeddah, Saudi Arabia
| |
Collapse
|
5
|
Elwazir MY, Hussein MH, Toraih EA, Al Ageeli E, Esmaeel SE, Fawzy MS, Faisal S. Association of Angio-LncRNAs MIAT rs1061540/MALAT1 rs3200401 Molecular Variants with Gensini Score in Coronary Artery Disease Patients Undergoing Angiography. Biomolecules 2022; 12:biom12010137. [PMID: 35053285 PMCID: PMC8773982 DOI: 10.3390/biom12010137] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 01/09/2022] [Accepted: 01/13/2022] [Indexed: 02/05/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) have emerged as essential biomolecules with variable diagnostic and/or prognostic utility in several diseases, including coronary artery disease (CAD). We aimed for the first time to investigate the potential association of five angiogenesis-related lncRNAs (PUNISHER, SENCR, MIAT, MALAT1, and GATA6-AS) variants with CAD susceptibility and/or severity. TaqMan Real-Time genotyping for PUNISHER rs12318065A/C, SENCR rs12420823C/T, MIAT rs1061540C/T, MALAT1 rs3200401T/C, and GATA6-AS1 rs73390820A/G were run on the extracted genomic DNA from 100 unrelated patients with stable CAD undergoing diagnostic coronary angiography and from 100 controls. After adjusting covariates, the studied variants showed no association with disease susceptibility; however, MIAT*T/T genotype was associated with a more severe Gensini score. In contrast, MALAT1*T/C heterozygosity was associated with a lower score. The lipid profile, and to a lesser extent smoking status, male sex, weight, hypertension, and MALAT1 (T > C) (negative correlation), explained the variance between patients/control groups via a principal component analysis. Incorporating the principal components into a logistic regression model to predict CAD yielded a 0.92 AUC. In conclusion: MIAT rs1061540 and MALAT1 rs3200401 variants were associated with CAD severity and Gensini score in the present sample of the Egyptian population. Further large multi-center and functional analyses are needed to confirm the results and identify the underlying molecular mechanisms.
Collapse
Affiliation(s)
- Mohamed Y. Elwazir
- Department of Cardiology, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt;
| | - Mohammad H. Hussein
- Division of Endocrine and Oncologic Surgery, Department of Surgery, School of Medicine, Tulane University, New Orleans, LA 70112, USA;
| | - Eman A. Toraih
- Division of Endocrine and Oncologic Surgery, Department of Surgery, School of Medicine, Tulane University, New Orleans, LA 70112, USA;
- Genetics Unit, Department of Histology and Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt
- Correspondence: (E.A.T.); (M.S.F.); Tel.: +1-346-907-4237 (E.A.T.); +20-1008584720 (M.S.F.)
| | - Essam Al Ageeli
- Department of Clinical Biochemistry (Medical Genetics), Faculty of Medicine, Jazan University, Jazan 45142, Saudi Arabia;
| | - Safya E. Esmaeel
- Department of Physiology, Faculty of Medicine, Zagazig University, Zagazig 44519, Egypt;
| | - Manal S. Fawzy
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt;
- Department of Biochemistry, Faculty of Medicine, Northern Border University, Arar 1321, Saudi Arabia
- Correspondence: (E.A.T.); (M.S.F.); Tel.: +1-346-907-4237 (E.A.T.); +20-1008584720 (M.S.F.)
| | - Salwa Faisal
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt;
| |
Collapse
|
6
|
Fawzy M, Al Ageeli E, Al‑Qahtani S, Abu Alsel B, Kattan S, Alelwani W, Toraih E. MicroRNA‑499a (rs3746444A/G) gene variant and susceptibility to type 2 diabetes‑associated end‑stage renal disease. Exp Ther Med 2021; 23:63. [PMID: 34934434 PMCID: PMC8649846 DOI: 10.3892/etm.2021.10985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 10/01/2021] [Indexed: 11/20/2022] Open
Abstract
Diabetic nephropathy (DN) is a major risk factor for end-stage renal disease (ESRD). MicroRNAs (miRNAs/miRs) and their variants may be implicated in health and disease, including DN. The present study aimed to investigate the association of the miRNA-499a gene (MIR499A) A/G seed region variant (rs3746444) with DN-associated ESRD susceptibility in patients with diabetes mellitus, and to determine whether there was an association between the different genotypes and the patients' laboratory and clinical data. A case-control pilot study was conducted on 180 adult patients with type 2 diabetes mellitus. A total of 90 patients with ESRD on regular hemodialysis were considered as the cases, and 90 age-, sex- and ethnicity-matched diabetic patients with normo-albuminuria were considered as the controls. MIR499A genotyping was performed using a TaqMan Real-Time allele discrimination assay. Results demonstrated that the MIR499A rs3746444*G variant conferred susceptibility to the development of ESRD under co-dominant [(odds ratio (95% confidence interval): 2.49 (1.41-3.89) and 2.41 (1.61-6.68) for heterozygous and homozygous comparison, respectively], dominant [2.30 (1.18-3.90)] and allelic [1.82 (1.17-2.83)] models. Different genotypes of the specified variant did not exhibit significant associations with the clinic-laboratory data of the studied patients or the circulating miR-499a plasma levels. In conclusion, results of the present study suggested that MIR499A rs3746444 may be a susceptibility variant for DN-associated ESRD in the study population. However, larger sample size studies with different ethnicities are warranted to verify these findings.
Collapse
Affiliation(s)
- Manal Fawzy
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Essam Al Ageeli
- Department of Clinical Biochemistry (Medical Genetics), Faculty of Medicine, Jazan University, Jazan 45142, Saudi Arabia
| | - Saeed Al‑Qahtani
- Department of Physiology, Faculty of Medicine, Taibah University, Al Madinah Al Munawwarah 42353, Saudi Arabia
| | - Baraah Abu Alsel
- Department of Pathology, Northern Border University, Arar 1321, Saudi Arabia
| | - Shahad Kattan
- Department of Medical Laboratory, College of Applied Medical Sciences, Taibah University, Yanbu 46522, Saudi Arabia
| | - Walla Alelwani
- Department of Biochemistry, Faculty of Science, University of Jeddah, Jeddah 23445, Saudi Arabia
| | - Eman Toraih
- Department of Surgery, School of Medicine, Tulane University, New Orleans, LA 70112‑2632, USA
| |
Collapse
|
7
|
Mohammad HMF, Abdelghany AA, Al Ageeli E, Kattan SW, Hassan R, Toraih EA, Fawzy MS, Mokhtar N. Long Non-Coding RNAs Gene Variants as Molecular Markers for Diabetic Retinopathy Risk and Response to Anti-VEGF Therapy. Pharmgenomics Pers Med 2021; 14:997-1014. [PMID: 34429633 PMCID: PMC8374537 DOI: 10.2147/pgpm.s322463] [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] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Accepted: 07/12/2021] [Indexed: 01/17/2023]
Abstract
Background Long non-coding RNAs (lncRNAs) play essential roles in molecular diagnosis and therapeutic response in several diseases. Purpose For the first time, we aimed to evaluate the association of four lncRNAs TUG1 (rs7284767G/A), MIAT (rs1061540T/C), MALAT1 (rs3200401C/T), and SENCR (rs12420823C/T) variants with susceptibility to diabetic retinopathy (DR), disease severity, and early therapeutic response to intravitreous anti-vascular endothelial growth factor aflibercept therapy. Patients and Methods This case-control study enrolled 126 adult patients with type 2 diabetes. TaqMan assays using Real-Time PCR were run for genotyping. Multivariable regression analyses were applied to assess the role of each polymorphism after the adjustment of covariates. Results Carriers of TUG1 A/G and MIAT T/C and C/C genotypes were more likely to develop DR [OR=3.15 (95% CI=1.15–8.64), and OR=4.31 (95% CI=1.78–10.47)], while MALAT1 T/C conferred protection (OR=0.40, 95% CI=0.16–0.99). For TUG1, MALAT1, MIAT, and SENCR genotype combinations, GTCT and GCCC had a higher disease risk (P=0.012). For disease severity, MIAT T/T homozygosity was associated with higher DR grade [33.3% (T/T) vs 10% (C/C) and 4.2% (C/T) carriers, P=0.012]. Otherwise, patients with the SENCR T variant exhibited better pre-treatment best-corrected visual acuity level (p=0.021). Following aflibercept administration, carrying the TUG1 A or MIAT T/C was associated with a poor therapeutic response (OR=5.02, 95% CI=1.60–15.76, and OR=10.23, 95% CI=1.51–69.15, respectively). Conclusion The lncRNAs TUG1 (rs7284767G/A) and MIAT (rs1061540T/C) were associated with increased DR susceptibility and poor response to aflibercept treatment, while MALAT1 (rs3200401C/T) conferred protection to DR. These genetic determinants could be useful in DR risk stratification and pharmacogenetics after validation in large-scale studies.
Collapse
Affiliation(s)
- Hala M F Mohammad
- Department of Clinical Pharmacology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt.,Central Laboratory, Center of Excellence in Molecular and Cellular Medicine (CEMCM), Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Ahmed A Abdelghany
- Department of Ophthalmology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Essam Al Ageeli
- Department of Clinical Biochemistry (Medical Genetics), Faculty of Medicine, Jazan University, Jazan, Saudi Arabia
| | - Shahad W Kattan
- Department of Medical Laboratory, College of Applied Medical Sciences, Taibah University, Yanbu, Saudi Arabia
| | - Ranya Hassan
- Department of Clinical Pathology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Eman A Toraih
- Department of Surgery, Tulane University, School of Medicine, New Orleans, LA, USA.,Genetics Unit, Department of Histology and Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Manal S Fawzy
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt.,Department of Biochemistry, Faculty of Medicine, Northern Border University, Arar, Saudi Arabia
| | - Naglaa Mokhtar
- Department of Biochemistry, Faculty of Medicine, Northern Border University, Arar, Saudi Arabia.,Department of Medical Biochemistry, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| |
Collapse
|
8
|
AbdAllah NB, Toraih EA, Al Ageeli E, Elhagrasy H, Gouda NS, Fawzy MS, Helal GM. MYD88, NFKB1, and IL6 transcripts overexpression are associated with poor outcomes and short survival in neonatal sepsis. Sci Rep 2021; 11:13374. [PMID: 34183713 PMCID: PMC8238937 DOI: 10.1038/s41598-021-92912-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 06/15/2021] [Indexed: 11/09/2022] Open
Abstract
Toll-like receptor (TLR) family signature has been implicated in sepsis etiopathology. We aimed to evaluate the genetic profile of TLR pathway-related key genes; the myeloid differentiation protein 88 (MYD88), IL1 receptor-associated kinase 1 (IRAK1), the nuclear factor kappa-B1 (NFKB1), and interleukin 6 (IL6) in the blood of neonates with sepsis at the time of admission and post-treatment for the available paired-samples. This case–control study included 124 infants with sepsis admitted to the neonatal intensive care unit and 17 controls. The relative gene expressions were quantified by TaqMan Real-Time qPCR and correlated to the clinic-laboratory data. MYD88, NFKB1, and IL6 relative expressions were significantly higher in sepsis cases than controls. Higher levels of MYD88 and IL6 were found in male neonates and contributed to the sex-based separation of the cases by the principal component analysis. ROC analysis revealed MYD88 and NFKB1 transcripts to be good biomarkers for sepsis. Furthermore, patients with high circulatory MYD88 levels were associated with poor survival, as revealed by Kaplan–Meier curves analysis. MYD88, NFKB1, and IL6 transcripts showed association with different poor-outcome manifestations. Clustering analysis split the patient cohort into three distinct groups according to their transcriptomic signature and CRP levels. In conclusion, the study TLR pathway-related transcripts have a gender-specific signature, diagnostic, and prognostic clinical utility in neonatal sepsis.
Collapse
Affiliation(s)
- Nouran B AbdAllah
- Department of Pediatrics, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Eman A Toraih
- Department of Surgery, School of Medicine, Tulane University, New Orleans, LA, USA.,Genetics Unit, Department of Histology and Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Essam Al Ageeli
- Department of Clinical Biochemistry (Medical Genetics), Faculty of Medicine, Jazan University, Jazan, Saudi Arabia
| | - Hala Elhagrasy
- Department of Pediatrics, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Nawal S Gouda
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Manal S Fawzy
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt. .,Department of Biochemistry, Faculty of Medicine, Northern Border University, Arar, Kingdom of Saudi Arabia.
| | - Ghada M Helal
- Department of Medical Biochemistry, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| |
Collapse
|
9
|
Toraih EA, El-Wazir A, Ageeli EA, Hussein MH, Eltoukhy MM, Killackey MT, Kandil E, Fawzy MS. Unleash multifunctional role of long noncoding RNAs biomarker panel in breast cancer: a predictor classification model. Epigenomics 2020; 12:1215-1237. [PMID: 32812439 DOI: 10.2217/epi-2019-0291] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Aim: We aimed to explore the circulating expression profile of nine lncRNAs (MALAT1, HOTAIR, PVT1, H19, ROR, GAS5, ANRIL, BANCR, MIAT) in breast cancer (BC) patients relative to normal and risky individuals. Methods: Serum relative expressions of the specified long non-coding RNAs were quantified in 155 consecutive women, using quantitative reverse-transcription PCR. Random Forest (RF) and decision tree were also applied. Results: Significant MALAT1 upregulation and GAS5 downregulation could discriminate risky women from healthy controls. Overexpression of the other genes showed good diagnostic performances. Lower GAS5 levels were associated with metastasis and recurrence. RF model revealed a better performance when combining gene expression patterns with risk factors. Conclusion: The studied panel could be utilized as diagnostic/prognostic biomarkers in BC, providing promising epigenetic-based therapeutic targets.
Collapse
Affiliation(s)
- Eman A Toraih
- Department of Histology & Cell Biology, Genetics Unit, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt.,Department of Surgery, Tulane University, School of Medicine, New Orleans, LA 70112, USA
| | - Aya El-Wazir
- Department of Histology & Cell Biology, Genetics Unit, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Essam Al Ageeli
- Department of Clinical Biochemistry (Medical Genetics), Faculty of Medicine, Jazan University, Jazan 82911, Saudi Arabia
| | - Mohammad H Hussein
- Department of Surgery, Tulane University, School of Medicine, New Orleans, LA 70112, USA
| | - Mohamed M Eltoukhy
- College of Computing and Information Technology, Khulais, University of Jeddah, Jeddah 21959, Saudi Arabia.,Department of Computer Science, Faculty of Computers and Informatics, Suez Canal University, Ismailia 41522, Egypt
| | - Mary T Killackey
- Department of Surgery, Tulane University, School of Medicine, New Orleans, LA 70112, USA
| | - Emad Kandil
- Department of Surgery, Division of Endocrine & Oncologic Surgery, Tulane University, School of Medicine, New Orleans, LA 70112, USA
| | - Manal S Fawzy
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt.,Department of Biochemistry, Faculty of Medicine, Northern Border University, Arar 1321, Saudi Arabia
| |
Collapse
|
10
|
Fawzy MS, Abu AlSel BT, Al Ageeli E, Al-Qahtani SA, Abdel-Daim MM, Toraih EA. Long non-coding RNA MALAT1 and microRNA-499a expression profiles in diabetic ESRD patients undergoing dialysis: a preliminary cross-sectional analysis. Arch Physiol Biochem 2020; 126:172-182. [PMID: 30270667 DOI: 10.1080/13813455.2018.1499119] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Background: Circulating non-coding RNAs (ncRNAs) have been implicated in health and disease. This study aimed to evaluate the serum expression profile of microRNA-499a (miR-499a) and its selected bioinformatically predicted partner long-ncRNA MALAT1 (metastasis-associated lung adenocarcinoma transcript 1) in diabetes-related end-stage renal disease (ESRD) patients and to correlate the expressions with the patients' clinicolaboratory data.Subjects and methods: Real-time quantitative polymerase chain reaction was applied in diabetics with and without ESRD (n = 90 for each).Results: Serum MALAT1 expression levels were increased in the ESRD group relative to diabetics without ESRD with median (quartile) values of 10.5 (1.41-126.7) (p < .001). However, miR-499a levels were decreased in more than half of ESRD patients with a median of 0.96 (0.13-3.14). Both MALAT1 and miR-499a expression levels were inversely correlated in the ESRD patient-group.Conclusions: MALAT1 up-regulation and miR-499 down-regulation might be involved in diabetic nephropathy-related ESRD pathogenesis. Functional validation studies are warranted to confirm the MALAT1/miR-499a partnership.
Collapse
MESH Headings
- Adult
- Aged
- Base Pairing
- Base Sequence
- Cross-Sectional Studies
- Diabetes Mellitus, Type 2/complications
- Diabetes Mellitus, Type 2/diagnosis
- Diabetes Mellitus, Type 2/genetics
- Diabetes Mellitus, Type 2/therapy
- Diabetic Nephropathies/diagnosis
- Diabetic Nephropathies/etiology
- Diabetic Nephropathies/genetics
- Diabetic Nephropathies/therapy
- Disease Progression
- Female
- Gene Expression Regulation
- Humans
- Kidney Failure, Chronic/diagnosis
- Kidney Failure, Chronic/etiology
- Kidney Failure, Chronic/genetics
- Kidney Failure, Chronic/therapy
- Male
- MicroRNAs/blood
- MicroRNAs/genetics
- Middle Aged
- RNA, Long Noncoding/blood
- RNA, Long Noncoding/genetics
- Renal Dialysis
Collapse
Affiliation(s)
- Manal S Fawzy
- Department of Biochemistry, Faculty of Medicine, Northern Border University, Arar, Saudi Arabia
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Baraah T Abu AlSel
- Department of Microbiology, Faculty of Medicine, Northern Border University, Arar, Saudi Arabia
| | - Essam Al Ageeli
- Department of Clinical Biochemistry (Medical Genetics), Faculty of Medicine, Jazan University, Jazan, Saudi Arabia
| | - Saeed Awad Al-Qahtani
- Department of Physiology, Faculty of Medicine, Taibah University, Almadinah Almunawwarah, Saudi Arabia
| | - Mohamed M Abdel-Daim
- Department of Pharmacology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
| | - Eman A Toraih
- Department of Histology and Cell Biology (Genetics Unit), Faculty of Medicine, Suez Canal University, Ismailia, Egypt
- Center of Excellence of Molecular and Cellular Medicine, Suez Canal University, Ismailia, Egypt
| |
Collapse
|
11
|
Fawzy MS, Toraih EA, Ageeli EA, Al-Qahtanie SA, Hussein MH, Kandil E. Noncoding RNAs orchestrate cell growth, death and drug resistance in renal cell carcinoma. Epigenomics 2020; 12:199-219. [PMID: 32011160 DOI: 10.2217/epi-2019-0120] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Aim: We aimed to explore the roles of noncoding RNAs (ncRNAs) in renal cell carcinoma. Materials & methods: The altered expressions of miR-196a2, miR-499a, H19, MALAT1 and GAS5, as well as some target transcripts were identified by quantitative real-time reverse transcription polymerase chain reaction. Results: Up-regulation of miR-196a2, E2F3, HSPA4 and MALAT1 (median fold change: 5.69, 25.6, 4.15 and 19.6, respectively) and down-regulation of miR-499a, GAS5, PDCD4, ANXA1 and DFFA (median fold change: 0.28, 0.25, 0.12, 0.09 and 0.08, respectively) were reported compared with paired non-cancer tissue. PDCD4, DFFA and GAS5 down-regulation was associated with poor prognosis in terms of high grade, larger tumor, nodal invasion, capsular and pelvic infiltration. Conclusion: The identified ncRNAs could represent potential theranostic biomarkers for renal cell carcinoma.
Collapse
Affiliation(s)
- Manal S Fawzy
- Department of Medical Biochemistry & Molecular Biology, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt.,Department of Biochemistry, Faculty of Medicine, Northern Border University, Arar 1321, Saudi Arabia
| | - Eman A Toraih
- Department of Surgery, Tulane University, School of Medicine, New Orleans, Louisiana 70112, USA.,Genetics Unit, Department of Histology & Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Essam Al Ageeli
- Department of Clinical Biochemistry (Medical Genetics), Faculty of Medicine, University, Jazan 45142, Saudi Arabia
| | - Saeed Awad Al-Qahtanie
- Department of Physiology, Faculty of Medicine, Taibah University, Almadinah Almunawwarah 344, Saudi Arabia
| | - Mohamed H Hussein
- Department of Surgery, Tulane University, School of Medicine, New Orleans, Louisiana 70112, USA
| | - Emad Kandil
- Division of Endocrine & Oncologic Surgery, Department of Surgery, Tulane University School of Medicine, New Orleans, LA 70112, USA
| |
Collapse
|
12
|
Al Ageeli E. Alterations of Mitochondria and Related Metabolic Pathways in Leukemia: A Narrative Review. Saudi J Med Med Sci 2019; 8:3-11. [PMID: 31929772 PMCID: PMC6945320 DOI: 10.4103/sjmms.sjmms_112_18] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 10/01/2018] [Revised: 02/12/2019] [Accepted: 07/21/2019] [Indexed: 12/14/2022]
Abstract
Dysregulation of mitochondrial function often precedes malignant transformation of hematopoietic stem cells (HSCs). Mitochondria have a direct role in the maintenance of HSC functions. For example, D-2-hydroxyglutarate, generated due to the activity of mutated mitochondrial isocitrate dehydrogenase (IDH), has been implicated in the pathogenesis of leukemia. Furthermore, disturbances in the fatty acid breakdown and pyruvate oxidation are often seen in leukemic cells. These and other abnormalities expedite leukemogenesis and chemoresistance of leukemic cells. However, it needs to be elucidated whether these aberrations are the result or cause of leukemogenesis. Accordingly, for this review, a search was carried out in PubMed and Google Scholar databases until June 2019 to assess the relationship between metabolic pathways in altered mitochondria and leukemia development. In the present review, an overview of mitochondria-related mechanisms and their abnormalities in leukemia is presented, with mitochondrial pathways and factors, such as mitophagy, intermediary metabolism enzymes, oncometabolites and reactive oxygen species' generation, discussed as potential diagnostic and therapeutic targets in leukemia.
Collapse
Affiliation(s)
- Essam Al Ageeli
- Department of Medical Biochemistry (Medical Genetics), Faculty of Medicine, Jazan University, Jazan, Saudi Arabia
| |
Collapse
|
13
|
Toraih EA, Abdelghany AA, Abd El Fadeal NM, Al Ageeli E, Fawzy MS. Deciphering the role of circulating lncRNAs: RNCR2, NEAT2, CDKN2B-AS1, and PVT1 and the possible prediction of anti-VEGF treatment outcomes in diabetic retinopathy patients. Graefes Arch Clin Exp Ophthalmol 2019; 257:1897-1913. [DOI: 10.1007/s00417-019-04409-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 06/17/2019] [Accepted: 06/29/2019] [Indexed: 12/13/2022] Open
|
14
|
Toraih EA, Ellawindy A, Fala SY, Al Ageeli E, Gouda NS, Fawzy MS, Hosny S. Oncogenic long noncoding RNA MALAT1 and HCV-related hepatocellular carcinoma. Biomed Pharmacother 2018; 102:653-669. [PMID: 29604585 DOI: 10.1016/j.biopha.2018.03.105] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 03/11/2018] [Accepted: 03/17/2018] [Indexed: 02/07/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is the second leading cause of cancer-related mortality worldwide. The oncogenic function of the long non-coding RNA; metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) in HCC remains unclear. We aimed to evaluate MALAT1 serum expression profile in HCC and explore its relation to the clinicopathological features. Quantitative Real Time-Polymerase Chain Reaction was applied in 70 cohorts (30 HCC, 20 HCV, 20 controls). Further meta-analysis of clinical studies and in vitro validated experiments was employed. Serum MALAT1 showed area under the curve of 0.79 and 0.70 to distinguish patients with cancer from normal and cirrhotic individuals at fold change of 1.0 and 1.26, respectively. Expression level was significantly higher in males (P <0.001) and patients with massive ascites (P = 0.005). Correlation analysis showed positive correlation of MALAT1 with total bilirubin (r = 0.456, P <0.001) and AST (r = 0.280, P = 0.019), and negative correlation with the hemoglobin level (r = 0.312, P = 0.009). Meta-analysis showed that the over-expressed MALAT1 was linked to tumor number [Cohen's d = 0.450, 95% CI (0.21 to 0.68)], clinical stage [Cohen's d = 0.048, 95% CI (-0.83 to 0.74)], and AFP level [Cohen's d = 0.354, 95% CI (0.1 to 0.57)]. In silico data analysis and systematic review confirmed MALAT1 oncogenic function in cancer development and progression. In conclusion, circulatory MALAT1 might represent a putative non-invasive prognostic biomarker indicating worse liver failure score in HCV-related HCC patients with traditional markers. Large-scale verification is warranted in future studies.
Collapse
Affiliation(s)
- Eman A Toraih
- Genetics Unit, Department of Histology and Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt; Center of Excellence of Molecular and Cellular Medicine, Suez Canal University, Ismailia, Egypt.
| | - Alia Ellawindy
- Genetics Unit, Department of Histology and Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Salma Y Fala
- Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Essam Al Ageeli
- Department of Clinical Biochemistry (Medical Genetics), Faculty of Medicine, Jazan University, Jazan, P.O. 45142, Saudi Arabia
| | - Nawal S Gouda
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Mansoura, Mansoura University, Egypt
| | - Manal S Fawzy
- Department of Medical Biochemistry, Faculty of Medicine, Suez Canal University, Ismailia, P.O. 41522, Egypt; Department of Biochemistry, Faculty of Medicine, Northern Border University, Arar, Saudi Arabia.
| | - Somaya Hosny
- Center of Excellence of Molecular and Cellular Medicine, Suez Canal University, Ismailia, Egypt; Department of Histology and Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| |
Collapse
|
15
|
Toraih EA, Hussein MH, Al Ageeli E, Riad E, AbdAllah NB, Helal GM, Fawzy MS. Structure and functional impact of seed region variant in MIR-499 gene family in bronchial asthma. Respir Res 2017; 18:169. [PMID: 28886711 PMCID: PMC5591547 DOI: 10.1186/s12931-017-0648-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [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: 05/15/2017] [Accepted: 08/25/2017] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Small non-coding RNAs (microRNAs) have been evolved to master numerous cellular processes. Genetic variants within microRNA seed region might influence microRNA biogenesis and function. The study aimed at determining the role of microRNA-499 (MIR-499) gene family polymorphism as a marker for susceptibility and progression of bronchial asthma and to analyze the structural and functional impact of rs3746444 within the seed region. METHODS Genotyping for 192 participants (96 patients and 96 controls) in the discovery phase and 319 subjects (115 patients and 204 controls) in the replication phase was performed via Real Time-Polymerase Chain Reaction technology. Patients underwent the methacholine challenge test and biochemical analysis. Gene structural and functional analysis, target prediction, annotation clustering, and pathway enrichment analysis were executed. Predicted functional effect of rs37464443 SNP was analyzed. RESULTS miR-499 gene family is highly implicated in inflammation-related signaling pathways. Rs374644 (A > G) in MIR499A and MIR499B within the seed region could disrupt target genes and create new genes. The G variant was associated with high risk of developing asthma under all genetic association models (G versus A: OR = 3.27, 95% CI = 2.53-4.22; GG versus AA: OR = 9.52, 95% CI = 5.61-16.5; AG versus AA: OR = 2.13, 95% CI = 1.24-3.46; GG + AG versus AA: OR = 4.43, 95% CI = 2.88-6.82). GG genotype was associated with poor pre-bronchodilator FEV1 (p = 0.047) and the worst bronchodilator response after Salbutamol inhalation, represented in low peaked expiratory flow rate (p = 0.035). CONCLUSIONS miR-499 rs3746444 (A > G) polymorphism was associated with asthma susceptibility and bronchodilator response in Egyptian children and adolescents. Further functional analysis is warranted to develop more specific theranostic agents for selecting targeted therapy.
Collapse
Affiliation(s)
- Eman A Toraih
- Genetics Unit, Department of Histology and Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia, P.O. 41522, Egypt.
| | | | - Essam Al Ageeli
- Department of Clinical Biochemistry (Medical Genetics), Faculty of Medicine, Jazan University, Jazan, Saudi Arabia
| | - Eman Riad
- Department of Chest Diseases and Tuberculosis, Faculty of Medicine, Suez Canal University, Ismailia, P.O. 41522, Egypt
| | - Nouran B AbdAllah
- Department of Pediatrics, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Ghada M Helal
- Department of Medical Biochemistry, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Manal S Fawzy
- Department of Medical Biochemistry, Faculty of Medicine, Suez Canal University, Ismailia, P.O. 41522, Egypt.
- Department of Medical Biochemistry, Faculty of Medicine, Northern Border University, Arar, Kingdom of Saudi Arabia.
| |
Collapse
|
16
|
Golmard L, Caux-Moncoutier V, Davy G, Al Ageeli E, Poirot B, Tirapo C, Michaux D, Barbaroux C, d'Enghien CD, Nicolas A, Castéra L, Sastre-Garau X, Stern MH, Houdayer C, Stoppa-Lyonnet D. Germline mutation in the RAD51B gene confers predisposition to breast cancer. BMC Cancer 2013; 13:484. [PMID: 24139550 PMCID: PMC4016303 DOI: 10.1186/1471-2407-13-484] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2013] [Accepted: 10/08/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Most currently known breast cancer predisposition genes play a role in DNA repair by homologous recombination. Recent studies conducted on RAD51 paralogs, involved in the same DNA repair pathway, have identified rare germline mutations conferring breast and/or ovarian cancer predisposition in the RAD51C, RAD51D and XRCC2 genes. The present study analysed the five RAD51 paralogs (RAD51B, RAD51C, RAD51D, XRCC2, XRCC3) to estimate their contribution to breast and ovarian cancer predisposition. METHODS The study was conducted on 142 unrelated patients with breast and/or ovarian cancer either with early onset or with a breast/ovarian cancer family history. Patients were referred to a French family cancer clinic and had been previously tested negative for a BRCA1/2 mutation. Coding sequences of the five genes were analysed by EMMA (Enhanced Mismatch Mutation Analysis). Detected variants were characterized by Sanger sequencing analysis. RESULTS Three splicing mutations and two likely deleterious missense variants were identified: RAD51B c.452 + 3A > G, RAD51C c.706-2A > G, RAD51C c.1026 + 5_1026 + 7del, RAD51B c.475C > T/p.Arg159Cys and XRCC3 c.448C > T/p.Arg150Cys. No RAD51D and XRCC2 gene mutations were detected. These mutations and variants were detected in families with both breast and ovarian cancers, except for the RAD51B c.475C > T/p.Arg159Cys variant that occurred in a family with 3 breast cancer cases. CONCLUSIONS This study identified the first RAD51B mutation in a breast and ovarian cancer family and is the first report of XRCC3 mutation analysis in breast and ovarian cancer. It confirms that RAD51 paralog mutations confer breast and ovarian cancer predisposition and are rare events. In view of the low frequency of RAD51 paralog mutations, international collaboration of family cancer clinics will be required to more accurately estimate their penetrance and establish clinical guidelines in carrier individuals.
Collapse
Affiliation(s)
- Lisa Golmard
- Institut Curie, Department of Tumour Biology, 26 rue d'Ulm, 75248, Paris, Cedex 05, France.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Al Ageeli E, Mignot C, Afenjar A, Whalen S, Dorison N, Mayer M, Esteva B, Dubern B, Momtchilova M, Le Gargasson JF, Bursztyn J, Héron D. Retinal involvement in two unrelated patients with Myhre syndrome. Eur J Med Genet 2012; 55:541-7. [DOI: 10.1016/j.ejmg.2012.05.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2011] [Accepted: 05/30/2012] [Indexed: 11/29/2022]
|
18
|
Hyon C, Marlin S, Chantot-Bastaraud S, Mabboux P, Beaujard MP, Al Ageeli E, Vazquez MP, Picard A, Siffroi JP, Portnoï MF. A new 17p13.3 microduplication including the PAFAH1B1 and YWHAE genes resulting from an unbalanced X;17 translocation. Eur J Med Genet 2011; 54:287-91. [DOI: 10.1016/j.ejmg.2010.12.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2010] [Accepted: 12/12/2010] [Indexed: 10/18/2022]
|