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Said EA, Al-Dughaishi S, Al-Hatmi W, Al-Reesi I, Al-Balushi MS, Al-Bimani A, Al-Busaidi JZ, Al-Riyami M, Al-Khabori M, Al-Kindi S, Procopio FA, Al-Sinawi S, Al-Ansari A, Koh CY, Al-Naamani K, Al-Jabri AA. Differential Production of Midkine and Pleiotrophin by Innate APCs upon Stimulation through Nucleic Acid-Sensing TLRs. J Immunol Res 2023; 2023:7944102. [PMID: 37850119 PMCID: PMC10578979 DOI: 10.1155/2023/7944102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/26/2023] [Accepted: 08/26/2023] [Indexed: 10/19/2023] Open
Abstract
Midkine (MK) and pleiotrophin (PTN) belong to the same family of cytokines. They have similar sequences and functions. Both have important roles in cellular proliferation, tumors, and diseases. They regulate and are expressed by some immune cells. We have recently demonstrated MK production by some human innate antigen-presenting cells (iAPCs), i.e., monocyte-derived dendritic cells (MDDCs) and macrophages stimulated through Toll-like receptor (TLR)-4, and plasmacytoid dendritic cells (pDCs) stimulated through TLR 7. While PTN production was only documented in tissue macrophages. TLRs 3, 7, 8, and 9 are nucleic acid sensing (NAS) TLRs that detect nucleic acids from cell damage and infection and induce iAPC responses. We investigated whether NAS TLRs can induce MK and PTN production by human iAPCs, namely monocytes, macrophages, MDDCs, myeloid dendritic cells (mDCs), and pDCs. Our results demonstrated for the first time that PTN is produced by all iAPCs upon TLR triggering (p < 0.01). IAPCs produced more PTN than MK (p < 0.01). NAS TLRs and iAPCs had differential abilities to induce the production of MK, which was induced in monocytes and pDCs by all NAS TLRs (p < 0.05) and in MDDCs by TLRs 7/8 (p < 0.05). TLR4 induced a stronger MK production than NAS TLRs (p ≤ 0.05). Monocytes produced higher levels of PTN after differentiation to macrophages and MDDCs (p < 0.05). The production of MK and PTN differs among iAPCs, with a higher production of PTN and a selective induction of MK production by NAS TLR. This highlights the potentially important role of iAPCs in angiogenesis, tumors, infections, and autoimmunity through the differential production of MK and PTN upon TLR triggering.
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Affiliation(s)
- Elias A. Said
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Sumaya Al-Dughaishi
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Wadha Al-Hatmi
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Iman Al-Reesi
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Mohammed S. Al-Balushi
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Atika Al-Bimani
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Juma Z. Al-Busaidi
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Marwa Al-Riyami
- Department of Pathology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Murtadha Al-Khabori
- Department of Hematology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Salam Al-Kindi
- Department of Hematology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Francesco A. Procopio
- Service of Immunology and Allergy, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - Shadia Al-Sinawi
- Department of Pathology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Aliyaa Al-Ansari
- Department of Biology, College of Science, Sultan Qaboos University, Muscat, Oman
| | - Crystal Y. Koh
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | | | - Ali A. Al-Jabri
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
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Said EA, Al-Dughaishi S, Al-Hatmi W, Al-Reesi I, Al-Riyami M, Al-Balushi MS, Al-Bimani A, Al-Busaidi JZ, Al-Khabori M, Al-Kindi S, Procopio FA, Al-Rashdi A, Al-Ansari A, Babiker H, Koh CY, Al-Naamani K, Pantaleo G, Al-Jabri AA. Human macrophages and monocyte-derived dendritic cells stimulate the proliferation of endothelial cells through midkine production. PLoS One 2022; 17:e0267662. [PMID: 35476724 PMCID: PMC9045650 DOI: 10.1371/journal.pone.0267662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Accepted: 04/12/2022] [Indexed: 11/19/2022] Open
Abstract
The cytokine midkine (MK) is a growth factor that is involved in different physiological processes including tissue repair, inflammation, the development of different types of cancer and the proliferation of endothelial cells. The production of MK by primary human macrophages and monocyte-derived dendritic cells (MDDCs) was never described. We investigated whether MK is produced by primary human monocytes, macrophages and MDDCs and the capacity of macrophages and MDDCs to modulate the proliferation of endothelial cells through MK production. The TLR stimulation of human monocytes, macrophages and MDDCs induced an average of ≈200-fold increase in MK mRNA and the production of an average of 78.2, 62, 179 pg/ml MK by monocytes, macrophages and MDDCs respectively (p < 0.05). MK production was supported by its detection in CD11c+ cells, CLEC4C+ cells and CD68+ cells in biopsies of human tonsils showing reactive lymphoid follicular hyperplasia. JSH-23, which selectively inhibits NF-κB activity, decreased the TLR-induced production of MK in PMBCs, macrophages and MDDCs compared to the control (p < 0.05). The inhibition of MK production by macrophages and MDDCs using anti-MK siRNA decreased the capacity of their supernatants to stimulate the proliferation of endothelial cells (p = 0.01 and 0.04 respectively). This is the first study demonstrating that the cytokine MK is produced by primary human macrophages and MDDCs upon TLR triggering, and that these cells can stimulate endothelial cell proliferation through MK production. Our results also suggest that NF-κB plays a potential role in the production of MK in macrophages and MDDCs upon TLR stimulation. The production of MK by macrophages and MDDCs and the fact that these cells can enhance the proliferation of endothelial cells by producing MK are novel immunological phenomena that have potentially important therapeutic implications.
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Affiliation(s)
- Elias A. Said
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
- * E-mail:
| | - Sumaya Al-Dughaishi
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Wadha Al-Hatmi
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Iman Al-Reesi
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Marwa Al-Riyami
- Department of Pathology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Mohammed S. Al-Balushi
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Atika Al-Bimani
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Juma Z. Al-Busaidi
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Murtadha Al-Khabori
- Department of Hematology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Salam Al-Kindi
- Department of Hematology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Francesco A. Procopio
- Laboratory of AIDS Immunopathogenesis, Department of Medicine, Centre Hospitalier Universitaire Vaudois (CHUV) University of Lausanne, Lauzane, Switzerland
| | - Afrah Al-Rashdi
- Department of Pathology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Aliyaa Al-Ansari
- Department of Biology, College of Science, Sultan Qaboos University, Muscat, Oman
| | - Hamza Babiker
- Department of Biochemistry, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Crystal Y. Koh
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | | | - Giuseppe Pantaleo
- Laboratory of AIDS Immunopathogenesis, Department of Medicine, Centre Hospitalier Universitaire Vaudois (CHUV) University of Lausanne, Lauzane, Switzerland
| | - Ali A. Al-Jabri
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
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Al Alawi I, Powell L, Rice S, Al Riyami M, Al-Riyami M, Al Salmi I, Sayer J. POS-428 A NOVEL IN-FRAME DELETION OF GLIS2 LEADING TO NEPHRONOPHTHISIS AND EARLY END STAGE KIDNEY DISEASE. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Al Alawi I, Powell L, Rice SJ, Al Riyami MS, Al-Riyami M, Al Salmi I, Sayer JA. Case Report: A Novel In-Frame Deletion of GLIS2 Leading to Nephronophthisis and Early Onset Kidney Failure. Front Genet 2021; 12:791495. [PMID: 34917135 PMCID: PMC8669607 DOI: 10.3389/fgene.2021.791495] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 10/28/2021] [Indexed: 02/05/2023] Open
Abstract
Variants in the GLIS family zinc finger protein 2 (GLIS2) are a rare cause of nephronophthisis-related ciliopathies (NPHP-RC). A reduction in urinary concentration and a progressive chronic tubulointerstitial nephropathy with corticomedullary cysts are the major characteristic features of NPHP. NPHP demonstrates phenotypic and genetic heterogeneity with at least 25 different recessive genes associated with the disease. We report a female, from a consanguineous family, who presented age 9 years with echogenic kidneys with loss of cortico-medullary differentiation and progressive chronic kidney disease reaching kidney failure by 10 years of age. A novel homozygous in-frame deletion (NM_032,575.3: c.560_574delACCATGTCAACGATT, p.H188_Y192del) in GLIS2 was identified using whole exome sequencing (WES) that segregated from each parent. The five amino acid deletion disrupts the alpha-helix of GLIS2 zinc-finger motif with predicted misfolding of the protein leading to its predicted pathogenicity. This study broadens the variant spectrum of GLIS2 variants leading to NPHP-RC. WES is a suitable molecular tool for children with kidney failure suggestive of NPHP-RC and should be part of routine diagnostics in kidney failure of unknown cause, especially in consanguineous families.
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Affiliation(s)
- Intisar Al Alawi
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
- National Genetic Center, Ministry of Health, Muscat, Oman
| | - Laura Powell
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Sarah J. Rice
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Mohammed S. Al Riyami
- Pediatric Nephrology Unit, Department of Child Health, Royal Hospital, Ministry of Health, Muscat, Oman
| | - Marwa Al-Riyami
- Department of Pathology, College of Medicine, Sultan Qaboos University, Muscat, Oman
| | - Issa Al Salmi
- Renal Medicine Department, Royal Hospital, Ministry of Health, Muscat, Oman
- Internal Medicine, Oman Medical Specialty Board, Muscat, Oman
| | - John A. Sayer
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
- Renal Services, Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
- Newcastle Biomedical Research Centre, NIHR, Newcastle upon Tyne, United Kingdom
- *Correspondence: John A. Sayer,
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Gupta I, Ouhtit A, Al-Ajmi A, Rizvi SGA, Al-Riyami H, Al-Riyami M, Tamimi Y. BRIP1 overexpression is correlated with clinical features and survival outcome of luminal breast cancer subtypes. Endocr Connect 2018; 7:65-77. [PMID: 29138235 PMCID: PMC5744628 DOI: 10.1530/ec-17-0173] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 11/14/2017] [Indexed: 12/14/2022]
Abstract
In Oman, breast cancer is most common, representing approximately more than 25% of all cancers in women. Relatively younger populations of patients (25-40 years) present surprisingly with an aggressive phenotype and advanced tumor stages. In this study, we investigated differential gene expressions in Luminal A, Luminal B, triple-negative and Her2+ breast cancer subtypes and compared data to benign tumor samples. We identified a potential candidate gene BRIP1, showing differential expression in the four breast cancer subtypes examined, suggesting that BRIP1 has the profile of a useful diagnostic marker, suitable for targeted therapeutic intervention. RT-qPCR and Western blotting analysis showed higher BRIP1 expression in luminal samples as compared to triple-negative subtype patient's samples. We further screened BRIP1 for eventual mutations/SNPs/deletions by sequencing the entire coding region. Four previously identified polymorphisms were detected, one within the 5'-UTR region (c.141-64G > A) and three in the BRCA-binding domain (c.2755T > C, c.2647G > A and c.3411T > C). Kaplan-Meier analysis revealed that patients with overexpression of BRIP1 displayed a poor survival rate (P < 0.05). BRIP1 has a dual function of an oncogene and a tumor suppressor gene in addition to its role as a potential biomarker to predict survival and prognosis. Data obtained in this study suggest that BRIP1 can plausibly have an oncogenic role in sporadic cancers.
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Affiliation(s)
- Ishita Gupta
- Department of GeneticsCollege of Medicine and Health Sciences, Sultan Qaboos University, Alkoudh, Sultanate of Oman
| | - Allal Ouhtit
- Department of Biological and Environmental SciencesCollege of Arts and Sciences, Qatar University, Doha, Qatar
| | - Adil Al-Ajmi
- Department of SurgeryCollege of Medicine and Health Sciences, Sultan Qaboos University, Alkoudh, Sultanate of Oman
| | - Syed Gauhar A Rizvi
- Department of Family Medicine and Public HealthCollege of Medicine and Health Sciences, Sultan Qaboos University, Alkoudh, Sultanate of Oman
| | - Hamad Al-Riyami
- Department of GeneticsCollege of Medicine and Health Sciences, Sultan Qaboos University, Alkoudh, Sultanate of Oman
| | - Marwa Al-Riyami
- Department of PathologyCollege of Medicine and Health Sciences, Sultan Qaboos University, Alkoudh, Sultanate of Oman
| | - Yahya Tamimi
- Department of BiochemistryCollege of Medicine and Health Sciences, Sultan Qaboos University, Alkoudh, Sultanate of Oman
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Khan SA, Al-Riyami D, Al-Mula Abed YW, Mohammed S, Al-Riyami M, Al-Lawati NM. Successful Salvage Treatment of Resistant Acute Antibody-Mediated Kidney Transplant Rejection with Eculizumab. Sultan Qaboos Univ Med J 2016; 16:e371-4. [PMID: 27606122 DOI: 10.18295/squmj.2016.16.03.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 08/24/2015] [Accepted: 06/02/2016] [Indexed: 12/17/2022] Open
Abstract
Antibody-mediated rejection (ABMR) jeopardises short- and long-term transplant survival and remains a challenge in the field of organ transplantation. We report the first use of the anticomplement agent eculizumab in Oman in the treatment of a 61-year-old female patient with ABMR following a living unrelated kidney transplant. The patient was admitted to the Sultan Qaboos University Hospital in Muscat, Oman, in 2013 on the eighth day post-transplantation with serum creatinine (Cr) levels of 400 µmol/L which continued to rise, necessitating haemodialysis. A biopsy indicated ABMR with acute cellular rejection. No improvement was observed following standard ABMR treatment and she continued to require dialysis. Five doses of eculizumab were administered over six weeks with a subsequent dramatic improvement in renal function. The patient became dialysis-free with serum Cr levels of 119 µmol/L within four months. This case report indicates that eculizumab is a promising agent in the treatment of ABMR.
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Affiliation(s)
- Saif A Khan
- Department of Medicine, Sultan Qaboos University Hospital, Sultan Qaboos University, Muscat, Oman
| | - Dawood Al-Riyami
- Department of Medicine, Sultan Qaboos University Hospital, Sultan Qaboos University, Muscat, Oman
| | - Yasser W Al-Mula Abed
- Department of Medicine, Sultan Qaboos University Hospital, Sultan Qaboos University, Muscat, Oman
| | - Saja Mohammed
- Department of Medicine, Sultan Qaboos University Hospital, Sultan Qaboos University, Muscat, Oman
| | - Marwa Al-Riyami
- Department of Pathology, Sultan Qaboos University Hospital, Sultan Qaboos University, Muscat, Oman
| | - Nabil M Al-Lawati
- Department of Medicine, College of Medicine & Health Sciences, Sultan Qaboos University, Muscat, Oman
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Said EA, Al-Reesi I, Al-Riyami M, Al-Naamani K, Al-Sinawi S, Al-Balushi MS, Koh CY, Al-Busaidi JZ, Idris MA, Al-Jabri AA. Increased CD86 but Not CD80 and PD-L1 Expression on Liver CD68+ Cells during Chronic HBV Infection. PLoS One 2016; 11:e0158265. [PMID: 27348308 PMCID: PMC4922653 DOI: 10.1371/journal.pone.0158265] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [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: 12/27/2015] [Accepted: 06/13/2016] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The failure to establish potent anti-HBV T cell responses suggests the absence of an effective innate immune activation. Kupffer cells and liver-infiltrating monocytes/macrophages have an essential role in establishing anti-HBV responses. These cells express the costimulatory molecules CD80 and CD86. CD80 expression on antigen-presenting cells (APCs) induces Th1 cell differentiation, whereas CD86 expression drives the differentiation towards a Th2 profile. The relative expression of CD80, CD86 and PD-L1 on APCs, regulates T cell activation. Few studies investigated CD80 and CD86 expression on KCs and infiltrating monocytes/macrophages in HBV-infected liver and knowledge about the expression of PD-L1 on these cells is controversial. The expression of these molecules together in CD68+ cells has not been explored in HBV-infected livers. METHODS Double staining immunohistochemistry was applied to liver biopsies of HBV-infected and control donors to explore CD80, CD86 and PD-L1 expression in the lobular and portal areas. RESULTS Chronic HBV infection was associated with increased CD68+CD86+ cell count and percentage in the lobular areas, and no changes in the count and percentage of CD68+CD80+ and CD68+PD-L1+ cells, compared to the control group. While CD68+CD80+ cell count in portal areas correlated with the fibrosis score, CD68+CD80+ cell percentage in lobular areas correlated with the inflammation grade. CONCLUSION The upregulation of CD86 but not CD80 and PD-L1 on CD68+ cells in HBV-infected livers, suggests that these cells do not support the induction of potent Th1. Moreover, the expression of CD80 on CD68+ cells correlates with liver inflammation and fibrosis.
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Affiliation(s)
- Elias A. Said
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, P.O. Box: 35, Code: 123, Muscat, Oman
| | - Iman Al-Reesi
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, P.O. Box: 35, Code: 123, Muscat, Oman
| | - Marwa Al-Riyami
- Department of Pathology, College of Medicine and Health Sciences, Sultan Qaboos University, P.O. Box: 35, Code: 123, Muscat, Oman
| | | | - Shadia Al-Sinawi
- Department of Pathology, College of Medicine and Health Sciences, Sultan Qaboos University, P.O. Box: 35, Code: 123, Muscat, Oman
| | - Mohammed S. Al-Balushi
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, P.O. Box: 35, Code: 123, Muscat, Oman
| | - Crystal Y. Koh
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, P.O. Box: 35, Code: 123, Muscat, Oman
| | - Juma Z. Al-Busaidi
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, P.O. Box: 35, Code: 123, Muscat, Oman
| | - Mohamed A. Idris
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, P.O. Box: 35, Code: 123, Muscat, Oman
| | - Ali A. Al-Jabri
- Department of Microbiology and Immunology, College of Medicine and Health Sciences, Sultan Qaboos University, P.O. Box: 35, Code: 123, Muscat, Oman
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Al-Khanbashi M, Caramuta S, Alajmi AM, Al-Haddabi I, Al-Riyami M, Lui WO, Al-Moundhri MS. Tissue and Serum miRNA Profile in Locally Advanced Breast Cancer (LABC) in Response to Neo-Adjuvant Chemotherapy (NAC) Treatment. PLoS One 2016; 11:e0152032. [PMID: 27064979 PMCID: PMC4827834 DOI: 10.1371/journal.pone.0152032] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [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: 10/19/2015] [Accepted: 03/08/2016] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION MicroRNAs (miRNAs) are small non-coding RNA that plays a vital role in cancer progression. Neo-adjuvant chemotherapy (NAC) has become the standard of care for locally advanced breast cancer. The aim of this study was to evaluate miRNA alterations during NAC using multiple samples of tissue and serum to correlate miRNA expression with clinico-pathological features and patient outcomes. METHODS Tissue and serum samples were collected from patients with locally advanced breast cancer undergoing NAC at four time points: time of diagnosis, after the first and fourth cycle of doxorubicin/cyclophosphamide treatment, and after the fourth cycle of docetaxel administration. First, we evaluated the miRNA expression profiles in tissue and correlated expression with clinico-pathological features. Then, a panel of four miRNAs (miR-451, miR-3200, miR-21, and miR-205) in serum samples was further validated using quantitative reverse-transcription polymerase chain reaction (RT-qPCR). The alterations in serum levels of miRNA, associations with clinical and pathological responses, correlation with clinico-pathological features, and survival outcomes were studied using Friedman, Mann-Whitney U, and Spearman, Wilcoxon signed-ranks tests. P≤0.05 was considered statistically significant. RESULTS We analyzed 72 tissue samples and 108 serum samples from 9 patients and 27 patients, respectively. MicroRNA expression profiling of tumor versus normal tissue revealed more than 100 differentially expressed miRNAs. Serum miR-451 levels were significantly decreased during treatment, and higher serum levels were associated with improved clinical and pathological responses and disease-free survival. This is one of the early reports on miR-3200 in response to treatment in breast cancer, as serum levels of miR-3200 found to decline during NAC, and higher serum levels were associated with lower residual breast cancer burden and relapse rates at time of diagnosis. CONCLUSION Variations in serum miRNA levels during NAC treatment may be therapeutically significant for predicting response and survival outcomes.
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Affiliation(s)
- Manal Al-Khanbashi
- Medical Oncology Unit, Department of Medicine, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Stefano Caramuta
- Department of Oncology-Pathology, Karolinska institute, Cancer Center Karolinska, Karolinska University Hospital-Solna, Stockholm, Sweden
| | - Adil M. Alajmi
- Department of Surgery, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Ibrahim Al-Haddabi
- Department of Pathology, College of Medicine, Sultan Qaboos University, Muscat, Oman
| | - Marwa Al-Riyami
- Department of Pathology, College of Medicine, Sultan Qaboos University, Muscat, Oman
| | - Weng-Onn Lui
- Department of Oncology-Pathology, Karolinska institute, Cancer Center Karolinska, Karolinska University Hospital-Solna, Stockholm, Sweden
| | - Mansour S. Al-Moundhri
- Medical Oncology Unit, Department of Medicine, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
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Affiliation(s)
| | - I. Fischer
- School of Nursing, Midwifery and Paramedicine; Australian Catholic University; Sydney
| | - V. Lopez
- Alice Lee Centre for Nursing Studies, Yong Loo Lin School of Medicine; National University of Singapore; Singapore
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Aljarrah A, Al-Hashmi M, Malik KA, Sukhpal S, Hussein S, Al-Riyami M, Al-Moundhri M. Mucinous breast cancer with solitary metastasis to humeral head: a case report. Oman Med J 2013; 28:350-3. [PMID: 24044063 DOI: 10.5001/omj.2013.100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 07/18/2013] [Accepted: 08/16/2013] [Indexed: 11/03/2022] Open
Abstract
Breast cancer is the most common cause of metastatic deposits in the skeleton, and bone is the most common site of recurrence of breast cancer. Breast cancer metastasis most commonly affects the spine, ribs, pelvis, and proximal long bones; however, only 3.5% of breast cancer patients develop long-bone metastases. The humerus is the most common upper-extremity site for bony metastasis, and pathologic fractures can result. The patient in the current study presented with breast cancer and discovered to have humeral head metastasis during initial workup. The dilemma was in investigation the modality to confirm humeral head metastasis as there are many differential diagnoses with similar findings. After staging workup, the patient was treated with neoadjuvant chemotherapy followed by modified radical mastectomy and radiotherapy of the chest wall and the shoulder. The lesion in humerus was well healed.
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Affiliation(s)
- Adil Aljarrah
- Breast Unit, Department of Surgery, Sultan Qaboos University Hospital, Al-Khoud, P.O. Box 912, PC 111, Muscat, Sultanate of Oman
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Al-Riyami N, Al-Hadabi R, Al-Dughaishi T, Al-Riyami M. Placental Tumour : What Could it be ? = ماذا يمكن أن يكون ؟. Sultan Qaboos Univ Med J 2013; 13:E459-62. [DOI: 10.12816/0003274] [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] [Received: 08/17/2012] [Revised: 10/25/2012] [Accepted: 12/19/2012] [Indexed: 11/27/2022] Open
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Moonim MT, Al-Riyami M, Tungekar MF. Nodular spindle cell vascular transformation in a retroperitoneal lymph node: morphological approach and differential diagnosis. Histopathology 2009; 53:476-9. [PMID: 18983612 DOI: 10.1111/j.1365-2559.2008.03131.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- M T Moonim
- Department of Histopathology, St Thomas' Hospital, Guy's & St Thomas' NHS Foundation Trust, London, UK
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Ashktorab H, Brim H, Al-Riyami M, Date A, Al-Mawaly K, Kashoub M, Al-Mjeni R, Smoot DT, Al-Moundhri M, Al-Hashemi S, Ganguly SS, Raeburn S. Sporadic colon cancer: mismatch repair immunohistochemistry and microsatellite instability in Omani subjects. Dig Dis Sci 2008; 53:2723-31. [PMID: 18299982 DOI: 10.1007/s10620-007-0189-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2007] [Accepted: 12/21/2007] [Indexed: 02/06/2023]
Abstract
BACKGROUND Colorectal carcinoma (CRC) is the most common gastrointestinal malignancy in the world, and there are suggestions of a particularly high incidence in the Middle East, including those of African origin. Defects in DNA mismatch repair (MMR) systems are involved in the carcinogenesis of both sporadic and inherited human cancers. We assessed colonic cancers in an attempt to identify tumors with DNA MMR deficiency and microsatellite instability (MSI). Additionally, we tested the ability of cell cycle regulator p16 that effects cell proliferation and can be abrogated by hypermethylation of the promoter region. METHODS We reviewed the charts of 756 patients who were referred to the Oman major colonoscopy unit of the Sultan Qaboos University Hospital and Royal Hospital from the years 2000 to 2004. Colon cancer tissue was assayed using immunohistochemistry for expression of hMLH1 and hMSH2, and a panel of five pairs of microsatellite primers (NR21, NR22, NR24, BAT25, and BAT26) for MSI-H analysis and additional dinucleotide markers (D17S250, D5S346, and D2S123) used for MSI-L. The expression status of MMR genes and MSI was correlated with cancer stage, location, and histology. A total of 49 tumors were analyzed for histopathology, MSI, and hMLH1/hMSH2 protein expression analysis. The methylation status of the p16 promoter was determined by methylation-specific polymerase chain reaction (PCR). RESULTS The mean age for the carcinomas was 52.2 years and 53% of the patients were male. The majority of the tumors were left-sided. The information currently available indicates that there is an incidence of 4.7% colon cancer (49/1036) and 12.1% (126/1290) colon adenoma among the cases who underwent colonoscopy at these centers. The rate of MSI-H was 12.2% (n = 6), which appears to be the same as previously reported in literature. Eight of 49 tumors (16.3%) were MMR defective by IHC. Defects in the mismatch repair genes hMLH1 and hMSH2 were found in four (66.7%) and two (33.3%) of CRCs MSI-H cases, respectively. Defects in hMLH1 expression in tumors were commonly associated with moderate differentiation. The p16 promoter was methylated in 4% of tumors. CONCLUSION This is the first genetic study of CRC in this region of the world to demonstrate the incidence of MSI, p16 methylation, and hMLH1 and MSH2 expression in the Omani population. In addition, a relatively high frequency of CRC in younger age groups was noted, which is an important observation. The left-sided preponderance of MMR defective tumors was mostly associated with hMLH1, and with possible loss of hMSH2 expression, an observation that differs from studies on other populations. In conclusion, although the overall rate of CRC is unknown in this region, the frequency of MSI in CRC in this region appears to be the same as in Caucasians in the USA.
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Affiliation(s)
- Hassan Ashktorab
- Department of Medicine and Cancer Center, Howard University College of Medicine, 2041 Georgia Avenue, N.W, Washington, DC 20060, USA.
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