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Ashry MSE, Radwan E, Abdellateif MS, Arafah O, Hassan NM. Clinical features, laboratory characteristics, and outcome of ETP and TCRA/D aberrations in pediatric patients with T-acute lymphoblastic leukemia. J Egypt Natl Canc Inst 2023; 35:17. [PMID: 37303010 DOI: 10.1186/s43046-023-00176-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 05/06/2023] [Indexed: 06/13/2023] Open
Abstract
BACKGROUND T-cell acute lymphoblastic leukemia (T-ALL) is an aggressive malignancy with few accepted prognostic factors that limit the efficiency of therapy. The aim of the current study was to assess the clinical and laboratory features of T-cell receptor (TCR) aberrations and early T-cell precursor (ETP) subtype as well as their outcome to therapy. METHODS Sixty-three newly diagnosed pediatric T-ALL patients were assessed for the ETP status using immunophenotyping. Screening of TCRA/D aberrations was done by fluorescent in situ hybridization (FISH). The data were correlated to the patients' clinical features, response to treatment, and survival rates. RESULTS Seven patients (11%) had ETP-ALL. The ETP-ALL patients were older (P = 0.013), presented with lower white blood cell (WBC) count (P = 0.001) and lower percentage of peripheral blood (PB) blast cells (P = 0.037), more likely to have hyperdiploid karyotype (P = 0.009), and had been associated with TCRA/D gene amplification (P = 0.014) compared to other T-ALL patients. Of note, the same associations had been significantly observed in patients with TCRA/D gene amplification. Patients with TCRA/D amplification frequently coincided with TCRβ aberrations (P = 0.025). TCR-β aberrations were significantly associated with negative MRD at the end of induction compared to TCR-β-negative patients. There was a nonsignificant trend of ETP-positive cases to have lower overall survival (OS) (P = 0.06). Patients with TCR aberrations had no significant differences regarding disease-free survival (DFS) or OS rates compared to those with normal TCR. CONCLUSION ETP-ALL patients tend to have increased mortalities. There was no significant impact of TCR aberrations on the survival rates of the patients.
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Affiliation(s)
- Mona S El Ashry
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Enas Radwan
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Mona S Abdellateif
- Medical Biochemistry and Molecular Biology, Cancer Biology Department, National Cancer Institute, Cairo University, Cairo, Egypt.
| | - Omar Arafah
- Pediatric Oncology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Naglaa M Hassan
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
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Kandeel EZ, Hassan NM, El Ashry MS. Clinical and Molecular Characteristics of Patients with Mixed Phenotype Acute Leukemia. Asian Pac J Cancer Prev 2023; 24:1217-1223. [PMID: 37116143 DOI: 10.31557/apjcp.2023.24.4.1217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Indexed: 04/30/2023] Open
Abstract
INTRODUCTION Mixed phenotype acute leukemia (MPAL) is a rare heterogeneous disease with a poor prognosis. This study analyzed the clinical, immunophenotypic, molecular, and cytogenetic characteristics of a group of patients with MPAL. METHODS This prospective study included 75 patients diagnosed with MPAL according to the World Health Organization (WHO)-2016 diagnostic criteria, using cytochemistry, conventional cytogenetics, and molecular studies. Screening of BCR::ABL1 fusion gene was performed by Fluorescent in-situ hybridization (FISH) and polymerase chain reaction (PCR). RESULTS Children represented 49.3% of MPAL patients. The main phenotype was B-lymphoid/myeloid (80%). Molecular alterations were detected in 17 patients (22.7%). The BCR::ABL1 fusion gene was detected in 10 patients (13.3%).. Myeloid protocols were used to treat 58 patients (77.3%), and lymphatic protocols in 17. By the end of the follow-up, 57 patients (76%) achieved complete remission (CR). There was no association between BCR::ABL1 and response to treatment. The cumulative overall survival (OS) at 12 months was 47.8%. The bone marrow transplantation (BMT) was associated with better OS (p = 0.027). The disease-free survival (DFS) was not affected by all tested prognostic factors. CONCLUSION MPAL is a complex entity with heterogeneous features. BCR::ABL1 is a common abnormality. BMT is associated with better OS.
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Affiliation(s)
- Eman Zaghloul Kandeel
- Department of Clinical Pathology, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Naglaa M Hassan
- Department of Clinical Pathology, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Mona Shafik El Ashry
- Department of Clinical Pathology, National Cancer Institute, Cairo University, Cairo, Egypt
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Nabil R, Elshazly SS, Hassan NM, Nooh HA. The expression level of ARF and p53 in AML patients, and their relation to patients' outcome. Egypt J Med Hum Genet 2023. [DOI: 10.1186/s43042-023-00410-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023] Open
Abstract
Abstract
Background
Acute myeloid leukemia (AML) is a cancer of hematopoietic progenitors characterized by gene mutations. The most popular deregulations are mutation and altered expression in the p53 gene, which is considered the guardian of the genome. Its activity is controlled by regulatory genes, e.g., alternate open reading frame (ARF), whose defects could affect p53 activity.
Aim
To study the effect of altered expression of p53 and ARF genes in de novo AML patients and correlate the results to the patients’ characteristics and outcomes.
Methods
Expression levels of p53 and ARF were assessed in 96 AML adult patients compared to 20 healthy controls using quantitative reverse-transcription PCR (RT-qPCR).
Results
There was significant up-regulation of p53 [77.6 (3.8–9528.3)] compared to controls [1.031 (0.210–9.051)], p < 0.001]. The expression level of ARF was significantly upregulated [6.2 (0.5–964.0)] compared to controls [0.854 (0.357–2.519), p < 0.001]. All of the low ARF expressers had low p53 overexpression, 61.1% of patients with high ARF expression had high p53 over-expression, and 38.9% with high ARF expression had low p53 over-expression (p < 0.001). ARF expression shows a trend of association with FLT3 mutation, as 89.3% with FLT3 mutation have high ARF expression (p = 0.080). Low p53 over-expression was seen in 77% of APL patients, while high p53 expression was associated with non-APL (p = 0.040). The median DFS of mutant NPM1 patients was higher than wild NPM1 (46.15 vs. 5.89 days, p = 0.045). Patients aged ≤ 50 years had better OS and DFS than those > 50 (p = 0.05, p = 0.035, respectively).There were no significant statistical associations between DFS and p53, ARF, and FLT3 mutations.
Conclusion
The p53 and ARF genes are overexpressed in de novo AML patients and they are interrelated. low p53 overexpression is associated with APL phenotype and t(15;17) and patients with t(15;17) had slightly better survival than patients with negative t(15;17) (p = 0.061). AML patients with mutated NPM1 had better DFS than wild NPM1 (p = 0.045). p53 pathway regulation can occur by many alternative ways rather than gene mutation.
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Gawdat RM, Khalil SA, Hassan NM, Nabil R, Alazhary NM. SMYD2 Expression: Its Relationship to Cytogenetic and Prognosis in a Newly Diagnosed Childhood B-Acute Lymphoblastic Leukemia. Clin Lab 2023; 69. [PMID: 36912291 DOI: 10.7754/clin.lab.2022.220355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
BACKGROUND The SMYD2 gene adjusts lysine residues on histones and non-histone proteins such as transcription factors, signaling kinases, and cell cycle regulators affecting the cell fate and other genes' expression. As it acts as an oncogene, SMYD2's expression levels may affect tumor progression. In this prospective study, our main aim was to determine the association of SMYD2 gene expression with the prognostic parameters of childhood B-acute lymphoblastic leukemia (B-ALL) and evaluate its influence on disease prognosis. METHODS SMYD2 gene expression was measured in the peripheral blood (PB) samples of 116 newly diagnosed B-ALL patients and 23 controls using real-time polymerase chain reaction (RT-PCR). RESULTS SMYD2 expression was significantly higher in the childhood B-ALL patients compared with the control group, p-value < 0.001. The patients with unfavorable rather than favorable structural chromosomal abnormalities had significantly higher SMYD2 mRNA levels, p < 0.001. SMYD2 expression levels were positively correlated with total leucocytes count (r = 0.206, p-value = 0.027) and peripheral blood blasts (r = 0.225, p-value = 0.015). There was a statistical difference between the B-ALL cases with high versus low SMYD2 levels regarding translocation (t12; 21), p-value = 0.015. Cox regression analysis identified the increased levels of SMYD2 as an independent prognostic factor affecting both OS and DFS. CONCLUSIONS The SMYD2 gene plays a vital oncogenic role in childhood B-ALL. The association of high SMYD2 levels with unfavorable cytogenetics in childhood B-ALL may be helpful in understanding the relationship between structural chromosomal abnormalities and epigenetic dysregulation. High SMYD2 levels may be useful in the prediction of prognosis in childhood B-ALL.
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Nabil R, Abdellateif MS, Gamal H, Hassan NM, Badawy RH, Ghareeb M, El Ashry MS. Clinical significance of EVI-1 gene expression and aberrations in patient with de-novo acute myeloid and acute lymphoid leukemia. Leuk Res 2023; 126:107019. [PMID: 36657369 DOI: 10.1016/j.leukres.2023.107019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/28/2022] [Accepted: 01/13/2023] [Indexed: 01/15/2023]
Abstract
BACKGROUND Acute leukemia is a common health problem in adults and children, however its exact molecular etiology is still unclear. METHODS The expression of EVI-1 was assessed in the bone marrow of 178 de-novo acute leukemia patients (101 AML, 71 ALL and 6 MPAL), compared to 40 control subjects. EVI-1 gene aberrations were also assessed in 69 AML patients using Fluorescence in situ hybridization (FISH) technique. RESULTS The expression of EVI-1 was significantly lower in ALL patients compared to control [0.177 (0.002-15.189) vs 0.953 (0.179-1.68); respectively, P = 0.009]. There was no significant difference between AML patients and control group [0.150 (0.0-641) vs 0.953 (0.179-1.68); respectively, P = 0.082]. The sensitivity, specificity, AUC of EVI-1 in ALL were (80.3 %, 60 % and 0.778; respectively, P = 0.009), and (67.3 %, 60 %, 0.667; respectively P = 0.082) in AML patients. One patient showed EVI-1 gene rearrangement in a complex karyotype and four patients showed EVI-1 amplification in hyperdiploid karyotypes. All patients with BCR-ABL fusion were EVI-1 over-expressers (P = 0.010). AML patients with EVI-1 low expression were positively associated with t(8;21)(q22;q22)RUNX1:RUNX1T1 fusion, favorable recurrent translocation, and low genetic risk (P = 0.037, P = 0.023, and P = 0.013; respectively). There was a significant association between low EVI-1 expression and prolonged overall survival (OS) in AML patients, while there was no significant association with the disease-free survival (DFS) (P = 0.048 and P = 0.419). There was no significant impact of EVI-1 expression on OS and DFS rates in ALL patients. CONCLUSION EVI-1 expression could be a helpful diagnostic, prognostic, and predictive biomarker for acute leukemia especially in AML.
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Affiliation(s)
- Reem Nabil
- Clinical Pathology Department, National Cancer Institute, Cairo University, Egypt
| | - Mona S Abdellateif
- Medical Biochemistry and Molecular Biology, Cancer Biology Department, National Cancer Institute, Cairo University, Egypt.
| | - Hend Gamal
- Clinical Pathology Department, National Cancer Institute, Cairo University, Egypt
| | - Naglaa M Hassan
- Clinical Pathology Department, National Cancer Institute, Cairo University, Egypt
| | - Ragia H Badawy
- Clinical Pathology Department, National Cancer Institute, Cairo University, Egypt
| | - Mohamed Ghareeb
- Medical Oncology Department, National Cancer Institute, Cairo University, Egypt
| | - Mona S El Ashry
- Clinical Pathology Department, National Cancer Institute, Cairo University, Egypt
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Abdelrahman AMN, Tolba FM, Kamal HM, Abdellateif MS, Ahmed HA, Hassan NM. Evaluation of the HOXA9 and MEIS1 genes as a potential biomarker in adult acute myeloid leukemia. Egypt J Med Hum Genet 2023. [DOI: 10.1186/s43042-023-00391-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Abstract
Background
Acute myeloid leukemia (AML) is a heterogeneous disorder encompassing a set of hematopoietic tumors that develop when the myeloid precursor cells undergo disproportionate clonal proliferation. Homeobox A 9 (HOXA9) is a pioneer transcription factor in AML pathogenesis along with its cofactor myeloid ecotropic integration site 1 (MEIS1). Our work aimed to evaluate the different expression levels of HOXA9 and MEIS1 genes and their diagnostic and prognostic significance in adult Egyptian patients with de novo AML. The study was carried out on 91 de novo AML Egyptian patients and 41 healthy individuals. Bone marrow samples were obtained from both patients and controls and then tested by reverse transcription-quantitative polymerase chain reaction to assess the mRNA expression in the studied genes.
Results
HOXA9 and MEIS1 gene expression levels were significantly elevated in AML patients compared to controls (p < 0.001). There was a statistically significant positive correlation between HOXA9 and MEIS1 gene expression in AML patients. However, there was no association between HOXA9 and MEIS1 gene expression levels and disease-free survival (DFS) and overall survival (OS) (p = 0.264 and 0.351, respectively).
Conclusion
HOXA9 and MEIS1 genes are highly expressed in Egyptian AML patients, suggesting their interesting pathogenic role in AML. They could be used as markers for the diagnosis of AML, but not for the disease prognosis.
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Nabil R, Hassan NM, Abdellateif MS, Gawdat RM, Elshazly SS. The prognostic role of C-KIT, TET1 and TET2 gene expression in Acute Myeloid Leukemia. Mol Biol Rep 2023; 50:641-653. [PMID: 36371552 PMCID: PMC9884250 DOI: 10.1007/s11033-022-08000-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 10/03/2022] [Indexed: 11/15/2022]
Abstract
AIM was to assess the role of C-KIT, TET1 and TET2 expression in the diagnosis and prognosis of acute myeloblastic leukemia (AML). METHODS The expression levels of C-KIT, TET1 and TET2 were assessed in the bone marrow (BM) aspirate of 152 AML patients compared to 20 healthy control using quantitative real-time polymerase chain reaction (qRT-PCR). Data were correlated with the clinico-pathological features of the patients, response to treatment, disease-free survival (DFS), and overall survival (OS) rates. RESULTS C-KIT, TET1 and TET2 were significantly upregulated in AML patients [0.25 (0-11.6), 0.0113 (0-3.301), and 0.07 (0-4); respectively], compared to the control group [0.013 (0.005-0.250), P < 0.001, 0.001 (0-0.006), P < 0.001, and 0.02 (0.008-0.055), P = 0.019; respectively]. The sensitivity, specificity, and area under curve of of C-KIT were (48.7%, 100%, 0.855; respectively, P = 0.001), and that of TET1 were (63.4%, 100%, 0.897; respectively, P = 0.001), while that of TET2 were (56.8%, 100%, 0.766; respectively, P = 0.019). When combining the three markers, the sensitivity was 77.5%, however it reached the highest sensitivity (78.6%) and specificity (100%) when combining both c-KIT + TET1 together for the diagnosis of AML. C-KIT overexpression associated with shorter DFS (P = 0.05) and increased incidence of relapse (P = 0.019). Lymph nodes involvement [HR = 2.200, P = 0.005] is an independent risk factor for shorter OS rate of AML patients. Increased BM blast % [HR = 7.768, P = 0.002], and FLT3-ITD mutation [HR = 2.989, P = 0.032] are independent risk factors for shorter DSF rate of the patients. CONCLUSION C-KIT, TET1, and TET2 could be used as possible useful biomarkers for the diagnosis of AML.
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Affiliation(s)
- Reem Nabil
- Clinical pathology Department, National Cancer Institute, Cairo University, Giza, Egypt
| | - Naglaa M Hassan
- Clinical pathology Department, National Cancer Institute, Cairo University, Giza, Egypt
| | - Mona S Abdellateif
- Medical Biochemistry and molecular biology, Cancer Biology Department, National Cancer Institute, Cairo University, Giza, Egypt.
| | - Rania M Gawdat
- Clinical and chemical pathology department, Faculty of medicine, Beni Suef university, Beni Suef, Egypt
| | - Samar Sami Elshazly
- Clinical pathology Department, National Cancer Institute, Cairo University, Giza, Egypt
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Mekkawy SA, Abdalla MS, Omran MM, Hassan NM, Abdelfattah R, Abdel-Salam IM. Cancer Stem Cells as a Prognostic Biomarker and Therapeutic Target Using Curcumin/ Piperine Extract for Multiple Myeloma. Asian Pac J Cancer Prev 2022; 23:3507-3515. [PMID: 36308377 PMCID: PMC9924316 DOI: 10.31557/apjcp.2022.23.10.3507] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Indexed: 02/18/2023] Open
Abstract
BACKGROUND Multiple myeloma (MM) is a hematological bone marrow malignancy that can be treated but is usually fatal. Medication resistance is the major cause of relapses due to cancer stem cells (CSCs). As a result, this study aimed to identify multiple myeloma cancer stem cells (MMCSCs) in the bone marrow of twelve MM patients with pathological complete response (pCR) after chemotherapy and to investigate the potential effect of Curcumin/Piperine (C/P) extract as an anti-MMCSCs treatment in twenty newly diagnosed patients. METHODS This study included twenty bone marrow (BM) samples from newly diagnosed MM patients and twelve BM samples from pCR patients after a year of treatment. The MTT test was performed to assess the treatment's effective dosage. A flow cytometer was used to identify MMCSCs, cell cycle profile, extract's apoptotic activity, and proliferation marker in the selected samples. Also, a colony formation test and stemness protein were investigated. RESULTS In newly diagnosed MM patients, the C/P extract suppressed MMCSCs by 64.71% for CD138-/CD19- and 38.31% for CD38++. In MM patients' samples obtained after one year of treatment, the MMCSCs inhibition percentage reached 44.71% (P < 0.008) for CD138-/CD19- and 36.94% (P < 0.221) for CD38++. According to cell cycle analyses, the number of cells treated with C/P extract was significantly reduced in the S and G0/G1 phases (87.38%: 35.15%, and 4.83%: 2.17% respectively), with a rapid increase in the G2/M phases (1.1%: 2.2%.). MMCSCs apoptosis was identified using a flow cytometer and Annexin-V. Multiple myeloma stem cell (MMCSC) proliferation was inhibited. Clonogenicity was suppressed by 60%, and stemness protein expression was reduced by 70%. CONCLUSION MMCSCs in the bone marrow of MM-pCR patients can be utilized as a prognostic tool to predict recurrent multiple myeloma incidence. Also, the therapeutic potential of C/P extract as a prospective anti-MM drug targeting MMCSCs.
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Affiliation(s)
- Sara A. Mekkawy
- Molecular Biotechnology program, Faculty of Science, Helwan University, Cairo, Egypt. ,For Correspondence:
| | - Mohga S. Abdalla
- Chemistry Department, Faculty of Science, Helwan University, Cairo, Egypt.
| | - Mohamed M. Omran
- Chemistry Department, Faculty of Science, Helwan University, Cairo, Egypt.
| | - Naglaa M. Hassan
- Clinical Pathology Department, National Cancer Institute, Cairo University, Egypt.
| | - Raafat Abdelfattah
- Medical Oncology Department, National cancer institute, Cairo University, Egypt.
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Gouda MBY, Hassan NM, Kandil EI. Bone Marrow Overexpression of SNAI1 is an early indicator of intrinsic drug resistance in patients with De Novo acute myeloid leukemia. J Gene Med 2022; 25:e3443. [PMID: 35900907 DOI: 10.1002/jgm.3443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 06/22/2022] [Accepted: 07/22/2022] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND The effectiveness of Acute myeloid leukemia (AML) treatment remains a big challenge and resembles a principal cause of AML-related mortality due to chemotherapy resistance. SNAI1 was proved as a leading factor of drug resistance in many cancer types. However, its relation to chemoresistance in AML is not well understood. METHODS In addition to standard lab work, the expression level of SNAI1 was determined in bone marrow samples of 109 adult and pediatric patients with De Novo acute myeloid leukemia using RT-qPCR. The relation between SNAI1 and AML drug resistance and immune-modulatory genes was investigated by STRING tool. RESULTS SNAI1 expression level was upregulated in AML patients against control cases. In treatment response, SNAI1 showed to be significantly high in resistant patients in comparison to the complete remission (CR) group. SNAI1 overexpression was associated with high initial blasts and total leukocyte counts, but with HLA class II histocompatibility antigen DR (HLA-DR) downregulation. STRING analysis showed that multiple drug resistance and immune-modulatory genes of AML induce SNAI upregulation and activation. Kaplan-Meier analysis indicated that there was no relation between SNAI1 expression level and patients' survival status. CONCLUSION We conclude that SNAI1 expression level may be a predictor of intrinsic drug resistance incidence in AML patients.
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Affiliation(s)
- Mahmoud B Y Gouda
- Department of Biochemistry, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Naglaa M Hassan
- Department of Clinical Pathology, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Eman I Kandil
- Department of Biochemistry, Faculty of Science, Ain Shams University, Cairo, Egypt
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Gouda MB, Hassan NM, Kandil EI, Haroun RAH. Pathogenetic Significance of YBX1 Expression in Acute Myeloid Leukemia Relapse. Curr Res Transl Med 2022; 70:103336. [DOI: 10.1016/j.retram.2022.103336] [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: 11/23/2021] [Revised: 12/26/2021] [Accepted: 01/30/2022] [Indexed: 11/03/2022]
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Gouda MBY, Zidane MA, Abdelhady AS, Hassan NM. Expression and prognostic significance of chromatin modulators EHMT2/G9a and KDM2b in acute myeloid leukemia. J Cell Biochem 2022; 123:1340-1355. [PMID: 35696556 DOI: 10.1002/jcb.30297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 04/21/2022] [Accepted: 05/26/2022] [Indexed: 11/11/2022]
Abstract
Epigenetics factors are critical for normal cell function and their regulation is sensitive to malignancy development. EHMT2/G9a and KDM2b are key epigenetics players in different cancer types. However, their expression profiles and related consequences in acute myeloid leukemia (AML) patients have not been known yet. In addition to routine lab work, expression levels of EHMT2/G9a and KDM2b were determined in 110 adult and pediatric patients with De Novo AML. Relations between their expression and patients' clinical data were tested by statistical methods. EHMT2/G9a and KDM2b were highly expressed in AML patients against control cases and associated with the presence of adverse genomic alterations. In response to induction chemotherapy, EHMT2/G9a and KDM2b showed to be significantly high in resistant and relapsed patients in comparison to the complete remission group. KDM2b overexpression was associated with CD11c (integrin alpha X) downregulation. Kaplan-Meier analysis indicated that EHMT2/G9a and KDM2b overexpression was correlated with poor survival status in AML patients. We conclude that EHMT2/G9a and KDM2b expression levels could be used as independent prognostic factors for AML disease.
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Affiliation(s)
- Mahmoud B Y Gouda
- Department of Biochemistry, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Mohammed A Zidane
- Department of Biochemistry, Faculty of Science, Ain Shams University, Cairo, Egypt
| | | | - Naglaa M Hassan
- Department of Clinical Pathology, National Cancer Institute, Cairo University, Cairo, Egypt
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El-Meligui YM, Hassan NM, Kassem AB, Gouda NA, Mohanad M, Hamouda MA, Salahuddin A. Impact of HOXB4 and PRDM16 Gene Expressions on Prognosis and Treatment Response in Acute Myeloid Leukemia Patients. Pharmgenomics Pers Med 2022; 15:663-674. [PMID: 35782688 PMCID: PMC9241994 DOI: 10.2147/pgpm.s368640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 06/14/2022] [Indexed: 12/08/2022] Open
Abstract
Introduction Acute myeloid leukemia (AML) is the most common type of leukemia among adults and is characterized by various genetic abnormalities. HOXB4 and PRDM16 are promising markers of AML. Our objective is to assess the potential roles of HOXB4 and PRDM16 as prognostic and predictive markers in newly diagnosed AML patients and determine the correlation between their expressions and other prognostic markers as FLT3-ITD, NPM1 exon 12 mutations, response to treatment, and patient’s survival. Methods This study included 83 de novo AML adult patients. All patients were subjected to clinical, morphological, cytochemical, and molecular analysis to detect HOXB4 and PRDM16 gene expressions and FLT3-ITD, NPM1 exon 12 mutations. Results The results showed that a low expression of HOXB4 was found in 31.3% of AML patients, whereas a high expression of PRDM16 was evident in 33.8% of AML patients. FLT3-ITD mutations were detected in 6 patients (7.2%), while NPM1 exon 12 mutations were detected in 7 patients (19.4%) out of 36 patients with intermediate genetic risk. Out of the 50 patients who achieved complete remission (CR), relapse occurred in 16% of the cases. Low expression of HOXB4 and high expression of PRDM16 were associated with CR of 32% and 28%, respectively, and a short overall survival (OS) and disease-free survival (DFS). Conclusion Further larger study should be conducted to verify that high PRDM16 and low HOXB4 gene expressions could be used as a poor prognostic predictor for AML. The correlation between PRDM16 and HOXB4 gene expressions and FLT3-ITD and NPM1 exon 12 mutations might have a role on CR, relapse, OS, and, however, this should be clarified in analysis with a larger number of samples.
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Affiliation(s)
- Yomna M El-Meligui
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Naglaa M Hassan
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Amira B Kassem
- Clinical Pharmacy and Pharmacy Practice Department, Faculty of Pharmacy, Damanhour University, Damanhour, Egypt
- Correspondence: Amira B Kassem, Email
| | - Nora A Gouda
- Cancer Epidemiology and Biostatistics Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Marwa Mohanad
- Biochemistry Department, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology, Giza, Egypt
| | - Manal A Hamouda
- Clinical Pharmacy Department, Faculty of Pharmacy, Menoufia University, Shibin El Kom, Egypt
| | - Ahmad Salahuddin
- Biochemistry Department, Faculty of Pharmacy, Damanhour University, Damanhour, Egypt
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Hassan NM, Abdellateif MS, Radwan EM, Hameed SA, Desouky EDE, Kamel MM, Gameel AM. Prognostic significance of CRLF2 overexpression and JAK2 mutation in Egyptian pediatric patients with B-precursor acute lymphoblastic leukemia. Clin Lymphoma Myeloma Leuk 2022; 22:e376-e385. [PMID: 34987014 DOI: 10.1016/j.clml.2021.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/03/2021] [Accepted: 12/06/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND The prognostic significance of cytokine receptor-like factor 2 (CRLF2) overexpression in pediatric B-cell precursor (BCP) acute lymphoblastic leukemia (ALL) is still controversial. We aimed to investigate the role of CRLF2 overexpression and JAK2 mutation in the diagnosis and prognosis of newly diagnosed pediatric B-ALL patients. METHODS CRLF2 expression was assessed by real-time quantitative polymerase chain reaction (PCR) in 115 pediatric patients newly diagnosed with precursor B-ALL patients compared with 24 age- and sex-matched controls. JAK2 R683G mutation status was performed by the qBiomarker Somatic Mutation PCR Assay. RESULTS CRLF2 overexpression was identified in 21 patients (18.3%), while the JAK2 R683G mutant type was found in only in 7 patients (6.1%). There was a significant CRLF2 overexpression in patients with high initial TLC, high blast count in blood, and organomegaly (P .04, 0.005 & 0.05 respectively). No patients with CRLF2 overexpression expressed any recurrent cytogenetic translocations. 4 patients with CRLF2 overexpression showed JAK2 R683G mutation. CRLF2 levels and JAK2 R683G mutation status did not have a significant impact on either overall survival or disease-free survival. CONCLUSION CRLF2 expression was significantly higher in Egyptian precursor B-ALL pediatric patients. CRLF2 overexpression was associated with a number of unfavorable prognostic factors with high tumor load, but was not an adverse independent parameter in pediatric BCP-ALL patients. Some patients with CRLF2 overexpression display JAK2 mutation, which may benefit from targeted therapy by kinase inhibitors.
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Affiliation(s)
- Naglaa M Hassan
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Mona S Abdellateif
- Cancer Biology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Enas M Radwan
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Sayed Abed Hameed
- Pediatric Oncology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Eman D El Desouky
- Biostatistics and Cancer Epidemiology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Mahmoud M Kamel
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt.
| | - Abdallah M Gameel
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
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Abstract
BACKGROUND Early diagnosis of breast cancer decreases mortality rate; therefore, novel diagnostic methods are urgently required. In this study, authors aimed to investigate the role of serum-derived miR-335 in breast cancer, and the expression of matrix metalloproteinase-2 (MMP2) and matrix metalloproteinase-9 (MMP9) and evaluating their feasibility and clinical utility as biomarkers for the early detection of breast cancer. MATERIALS AND METHODS Blood samples were collected from a total of 210 individuals who were enrolled in this study. The participants were divided into newly diagnosed breast cancer patients (n = 115), patients with benign breast lesions (n =55) and healthy individuals as control group (n =40). The expression profile of miR-335, MMP2 and MMP9 were determined using quantitative polymerase chain reaction (qPCR). RESULTS MiR 335 expression level was down-regulated in primary breast cancer group as compared to benign breast group and healthy individuals with 98% and 94.9% sensitivity and specificity, respectively. MMP2 and MMP9 showed significantly higher expression levels in breast cancer group as compared to both benign and healthy group and reporting 92.7% and 93% sensitivity, respectively. The relations between investigated markers and pathologic types, staging, grading, and lymph node involvement were significant with these factors. Expression level of miR-335 was decreased with increased MMP2 and MMP9 at significant level. CONCLUSION MiR-335, MMP2, and MMP9 can be used as diagnostic markers in breast cancer.
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Affiliation(s)
- Amal Ramadan
- Biochemistry Department, Genetic Engineering and Biotechnology Research Division, National Research Centre, Dokki, Giza, Egypt
- High Throughput Molecular and Genetic laboratory, Center for Excellences for Advanced Sciences, National Research Centre, Dokki, Egypt
| | - Maha Hashim
- Biochemistry Department, Genetic Engineering and Biotechnology Research Division, National Research Centre, Dokki, Giza, Egypt
- High Throughput Molecular and Genetic laboratory, Center for Excellences for Advanced Sciences, National Research Centre, Dokki, Egypt
| | - Naglaa M Hassan
- Clinical Pathology Department, National Cancer Institute, Cairo, Egypt
| | - Menha Swellam
- Biochemistry Department, Genetic Engineering and Biotechnology Research Division, National Research Centre, Dokki, Giza, Egypt
- High Throughput Molecular and Genetic laboratory, Center for Excellences for Advanced Sciences, National Research Centre, Dokki, Egypt
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Hassan NM, El Ashry MS, Abdellateif M, Hassan RN. Evaluating the Role of Cytokine Receptor-like Factor 2 and Janus Kinase 2 in Adult Acute Lymphoblastic Leukemia. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.9139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
AIM: The aim of the present study was to assess the diagnostic, prognostic, and predictive roles of the cytokine receptor-like factor 2 (CRLF2) and the Janus Kinase 2 (JAK2) genes expression in adult acute lymphoblastic leukemia (ALL) patients.
METHODS: The expression levels of CRLF2 and JAK2 genes were evaluated in the bone marrow (BM) samples of 105 adult ALL patients, compared to 12 healthy controls. The data were correlated to the patients’ relevant clinic-pathological features, response to treatment and survival rates.
RESULTS: There was a significant overexpression of JAK2 in ALL patients compared to the control group [0.04 (0–160.8) and 0.006 (0–0.009), respectively, p < 0.001]. Similarly, CRLF2 was overexpressed in ALL patients in comparison to control subjects [0.008 (0–78.2) and 0.0005 (0–0.006), respectively, p < 0.001]. The sensitivity, specificity, and the area under curve (AUC) for JAK2 were 78.1%, 81.8%, and 0.796, respectively (p < 0.001), and that of CRLF2 were 92.4%, 90.9%, 0.958, respectively (p < 0.001). When combining both JAK2 and CRLF2 for the diagnosis of ALL patients, it revealed 90.9% sensitivity, 91.4% specificity, and AUC of 0.957 (p < 0.001). The JAK2, CRLF2, or their combined expression associated significantly with the increased expression of MHC-II (p = 0.015, 0.001, and 0.004, respectively). However, they had no significant impact on patients’ response to treatment, overall (OS), and disease-free survival (DFS) rates (p > 0.05 for all).
CONCLUSION: JAK2 and CRLF2 could be a potential useful diagnostic molecular marker for ALL patients, which allow them to be successful targets for ALL therapy.
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Abdelhafeez HEDA, Hamid FFA, Hassan NM, Assem MM, Soliman AF. Relative expression and prognostic significance of forkhead box P3 in childhood B-cell acute lymphoblastic leukemia. Pediatr Blood Cancer 2021; 68:e29129. [PMID: 34133057 DOI: 10.1002/pbc.29129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 04/17/2021] [Accepted: 05/07/2021] [Indexed: 11/06/2022]
Abstract
BACKGROUND Despite the favorable survival rates of childhood B-cell acute lymphoblastic leukemia (B-ALL), a significant number of patients present a dismal prognosis. Forkhead box P3 (FOXP3), a marker of regulatory T cells, functions as a transcription factor involved in immune cell regulation, and its expression correlates with prognosis in many malignancies. Therefore, this study aimed to assess the relative gene expression level of FOXP3 in childhood B-ALL and to detect its prognostic utility. METHODS The study included 139 bone marrow samples obtained from 112 patients at diagnosis and 27 healthy children. Following extraction, RNA was reverse transcribed and the relative expression level of FOXP3 was quantified by quantitative PCR. Cytogenetics, immunophenotype, and minimal residual disease were analyzed according to international guidelines. RESULTS A highly significant overexpression of FOXP3 was detected in childhood B-ALL patients at diagnosis, which was associated with a stronger risk for disease relapse and patients' worse survival. Moreover, multivariate regression models highlighted the independent prognostic value of FOXP3 for childhood B-ALL. Finally, the combination of FOXP3 relative expression with clinically used disease markers clearly enhanced the prediction of treatment stratification. CONCLUSIONS High FOXP3 relative expression was associated with inferior outcome suggesting its potentiality as a molecular prognostic marker to predict childhood B-ALL patients' outcomes.
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Affiliation(s)
| | - Fatma F Abdel Hamid
- Biochemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Naglaa M Hassan
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Magda M Assem
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Ahmed F Soliman
- Biochemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
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Abdelghany WA, Emam M, Elnagar U, Helmy R, Korayem OH, Hassan NM. Micro-RNA Biogenesis Genes (AGO1 and GEMIN4) Single Nucleotide Variants of Bad Prognosis and Poor Therapeutic Response in Egyptian Chronic Myeloid Leukemia Patients: Case–control Study. Open Access Maced J Med Sci 2021. [DOI: 10.3889/oamjms.2021.6160] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: Chronic myeloid leukemia (CML) is one of the most common hematological tumors. Gene candidate studies cleared the association of single genetic variants (SNVs) to the risk and progression in CML. MicroRNA biogenesis genes disruption contributes a fundamental role in carcinogenesis.
AIM: We aimed to determine the association between rs636832 and rs2740348 SNVs of AGO1 gene and GEMIN4 gene, respectively, and the risk and prognosis in CML Egyptian patients with 5 years survival estimation.
METHODS: The study was conducted on 110 newly diagnosed CML patients and 110 age and sex healthy matched controls. Real-time polymerase chain reaction utilizing TaqMan probes was operated to demonstrate genetic modalities of rs636832 and rs2740348.
RESULTS: No significance difference was observed between the cases and controls regarding the genotypic and allelic frequencies for both variants. On the other hand, the rs636832 GG genotype was more evident at a younger age of diagnosis and associated with the poor grades of the Sokal and Eutos scores. As well, rs2740348 CC genotype was encountered in high Eutos score levels. Regarding the response therapy, rs636832 GG genotype was overrepresented in the resistance to Imatinib while rs2740348 CC genotype was prevalent in the resistance to both Imatinib and Nilotinib. Overall survival was of no statistical significance for both variants.
CONCLUSION: Our study revealed that the major homozygous genotypes of both variants were associated with bad prognostic clinical scores and poor response to therapy but with no role in CML risk.
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Hassan NM, Said F, Shafik RE, Abdellateif MS. Dysregulation of CCAAT/enhancer binding protein-alpha (CEBPA) expression in the bone marrow of acute myeloid leukemia patients. Egypt J Med Hum Genet 2021. [DOI: 10.1186/s43042-021-00154-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Acute myeloid leukemia (AML) is a heterogeneous malignant disease characterized by accumulation of different types of mutations commonly the CCAAT/enhancer binding protein-alpha (CEBPA). However, the dysregulations of CEBPA expression in AML is still a debatable issue. The aim of the current study was to assess CEBPA gene expression in bone marrow (BM) aspiration specimens of 91 AML patients, compared to 20 control donors of bone marrow transplantation (BMT), using RT-PCR. Data were correlated with patients’ clinico-pathological features, response to treatment, progression-free survival (PFS), and overall survival (OS) rates.
Results
There was overexpression of CEBPA gene in AML patients compared to normal control [1.7 (0.04–25.6) versus 0.17 (0–4.78), respectively, P < 0.001]. Upregulation of CEBPA expression associated significantly with increased BM hypercellularity, total leucocyte counts, peripheral blood blast cell count, and poor PFS (P < 0.001, 0.002, 0.001, and 0.013, respectively). There was no significant association between CEBPA expression and any other relevant clinico-pathological features or OS rates (P = 0.610) of the patients. ROC analysis for biological relevance of CEBPA expression with AML showed that sensitivity and specificity of CEBPA expression at a cut-off value of 0.28 are 92.3% and 78.6%, respectively (P < 0.001). All patients who had CEBPA overexpression and mutant FLT3 showed BM hypercellularity, adverse cytogenetic risk, increased TLC, and PB blast cells count (P = 0.007, P < 0.001, 0.016, and 0.002, respectively).
Conclusion
CEBPA overexpression could be used as a genetic biological marker for AML diagnosis, as well as a poor prognostic factor for disease progression. It has no impact on OS rates of the patients.
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Abdelghany WM, Botros SKA, Mansour OM, Ayoub MA, Almuslimani AM, Hassan NM. Fibroblast Growth Factor Receptor 4 Gly388Arg Gene Polymorphism and Non-Hodgkin Lymphoma Susceptibility and Prognosis in Egyptian population: Case–control Study. Open Access Maced J Med Sci 2021. [DOI: 10.3889/oamjms.2021.5023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND: Angiogenesis is a multistep process having an essential role in the growth and progression of various tumors including hematolymphoid malignancies. Basic fibroblast growth factor (bFGF) is one of angiogenic growth factors which level is considered as prognostic factor in lymphoma and leukemia. It mediates its action by binding to high affinity cell surface receptors-fibroblast growth factor receptor 1–4 (FGFR4) with receptor kinase activity. Therefore, upregulation of BFGF-FGFR system may cause increased risk of non-Hodgkin lymphomas (NHLs).
AIM: Our study aimed to determine the association between the FGFR4 Gly388Arg (rs351855G/A) polymorphism and NHL disease susceptibility and prognosis.
MATERIALS AND METHODS: The present study included 75 NHL patients and 100 healthy controls. Genotyping of FGFR4 was done by Polymerase Chain Reaction-Restriction Fragment Length polymorphism (PCR-RFLP). As after the amplification of the target gene, the PCR products were digested with BstNI restriction endonuclease enzyme.
RESULTS: Analysis of FGFR4 Gly388Arg polymorphism revealed that the frequency of heterozygous (GA) mutation as well as the mutant allele (A) was significantly higher in cases compared to control subjects with p < 0.001 and 0.002, respectively. The mutant genotypes were more prevalent at older age, aggressive clinical stage, bone marrow involvement, anemia, and thrombocytopenia at presentation. The mean of overall survival and the event free survival of our NHL patients were shorter in the mutant genotypes with p = 0.049 and 0.017, respectively.
CONCLUSION: This study provides evidence that FGFR4 Gly388Arg polymorphism confers a genetic susceptibility to NHL among Egyptians and has a poor prognostic impact.
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Attia HRM, Ibrahim MH, El-Aziz SHA, Abdelrahman AH, Sobeih ME, Hagag HAA, Yassa ME, Osman RA, Rawi R, El-Dayem OYA, Elsharkawi N, Abdelfattah R, Hassan NM. Evaluation of prognostic variables in chronic lymphocytic leukemia and association with disease stage. Mol Clin Oncol 2021; 14:100. [PMID: 33796290 PMCID: PMC8010509 DOI: 10.3892/mco.2021.2262] [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: 02/06/2020] [Accepted: 11/13/2020] [Indexed: 11/15/2022] Open
Abstract
The aim of the present study was to investigate different biological prognostic markers to identify high-risk patients with chronic lymphocytic leukemia (CLL) with a higher tumor burden, in order to ensure appropriate management. A total of 81 Egyptian patients with CLL were enrolled in the present study, with 75 healthy subjects serving as the control group. The expression of CD49d, CD38 and ZAP-70 in CLL cells was assessed using flow cytometry. The fluorescence in situ hybridization technique was employed to evaluate TP53 (del17p), ataxia-telangiectasia (del11q) and 13q14 (del13q14) genes and the presence of trisomy 12. The serological markers β2 microglobulin (B2M) and sCD23 were measured by ELISA. The CD49d gene was highly expressed in 25.9% and cytogenetic aberrations were observed in 66.6% of all recruited CLL patients. The patients were categorized according to the Binet staging system and a significant increase in the expression of sCD23, CD49d and ZAP-70 was detected in group C (P=0.008, 0.034 and 0.017, respectively) when compared to groups A and B. CD49d+ patients exhibited significantly higher expression of CD38 (P=0.002) and trisomy 12 (P=0.015) and lower expression of del13q14 (P=0.001). Patients who were CD49d+ with B2M>3.5 µg/ml exhibited higher total leukocyte count (P=0.048), higher absolute lymphocyte count (P=0.036), higher expression of CD38 (P=0.002) and trisomy 12 (P=0.034) and lower expression of del13q14 (P=0.002). Therefore, sCD23, CD49d and ZAP-70 may be considered as an optimal prognostic marker combination to be evaluated in the early stages of CLL and throughout disease management. Integrating both serological markers and CD49d expression by flow cytometry may add to the prognostic value of each marker alone and help identify high-risk patients with a higher tumor burden.
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Affiliation(s)
- Hanaa R M Attia
- Department of Clinical and Chemical Pathology, Medical Division, National Research Centre, Centre of Excellence, 12622 Cairo, Egypt
| | - Mona Hamed Ibrahim
- Department of Clinical and Chemical Pathology, Medical Division, National Research Centre, Centre of Excellence, 12622 Cairo, Egypt
| | - Shereen H Abd El-Aziz
- Department of Clinical and Chemical Pathology, Medical Division, National Research Centre, Centre of Excellence, 12622 Cairo, Egypt
| | - Amany H Abdelrahman
- Department of Clinical and Chemical Pathology, Medical Division, National Research Centre, Centre of Excellence, 12622 Cairo, Egypt
| | - Mohamed Emam Sobeih
- Department of Medical Oncology, National Cancer Institute, 11796 Cairo, Egypt
| | - Heba A A Hagag
- Cytogenetic Unit-Main Laboratory, Kasr Al-Ainy School of Medicine, 11562 Cairo, Egypt
| | - Marianne E Yassa
- Department of Clinical and Chemical Pathology, Kasr Al-Ainy School of Medicine, 11562 Cairo, Egypt
| | - Randa A Osman
- Department of Clinical Pathology, National Cancer Institute, 11796 Cairo, Egypt
| | - Rasha Rawi
- Department of Internal Medicine, Kasr Al-Ainy School of Medicine, Cairo University, 11562 Cairo, Egypt
| | - Omnia Y Abd El-Dayem
- Department of Clinical and Chemical Pathology, Kasr Al-Ainy School of Medicine, 11562 Cairo, Egypt
| | - Nahla Elsharkawi
- Department of Clinical Pathology, National Cancer Institute, 11796 Cairo, Egypt
| | - Raafat Abdelfattah
- Department of Medical Oncology, National Cancer Institute, 11796 Cairo, Egypt
| | - Naglaa M Hassan
- Department of Clinical Pathology, National Cancer Institute, 11796 Cairo, Egypt
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Hassan NM, Refaat LA, Ismail GN, Abdellateif M, Fadel SA, AbdelAziz RS. Diagnostic, prognostic and predictive values of miR-100 and miR-210 in pediatric acute lymphoblastic Leukemia. ACTA ACUST UNITED AC 2021; 25:405-413. [PMID: 33191875 DOI: 10.1080/16078454.2020.1843753] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND : microRNAs are playing important roles in the diagnosis and prognosis of pediatric acute lymphoblastic leukemia (ALL). METHODS Expression levels of miR-100 and miR-210 were assessed in bone marrow aspirate of 85 pediatric ALL patients compared to 12 healthy control using quantitative real-time polymerase chain reaction. Data were correlated with relevant clinico-pathological features of the patients, response to treatment, disease-free survival (DFS), and overall survival (OS). RESULTS miR-100 was significantly downregulated in ALL patients [median: 1.21, range: 0-434.3] compared to the control group [median: 8.41, range; 0-840.3, P = 0.035]. miR-210 was significantly upregulated in ALL patients [median: 6.34, range: 1.16-1088.7] compared to the control group [median: 2.57, range: 0.11-709.2, P = 0.025]. The sensitivity, specificity, and area under curve of miR-100 were (64.7%, 62.5%, and 0.642; respectively, P = 0.035) at a cut-off 2.6 and that of miR-210 were (60%, 58.3% and 0.650; respectively, P = 0.025) at a cut-off 3.5. miR-100 overexpression associated with shorter DFS and OS (P = 0.033 and 0.046; respectively). Patients with miR-100 lowexpression showed a significant incidence of late death ( P = 0.024). There was no significant association between miR-210 expression and DFS, OS, incidence of early or late death. CONCLUSION : miR-100 and miR-210 could be used as potential diagnostic markers for pediatric ALL. miR-100 is a useful prognostic and predictive biomarker for childhood ALL.
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Affiliation(s)
- Naglaa M Hassan
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Lobna A Refaat
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Ghada N Ismail
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Mona Abdellateif
- Medical Biochemistry and Molecular Biology, Cancer Biology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Sayed A Fadel
- Pediatric Oncology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Rania S AbdelAziz
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
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Shafik RE, Ibrahim AM, Said F, Hassan NM, Shafik HE, Shokralla HA. Prognostic value of CIP2A gene expression in adult Egyptian acute myeloid leukemia patients. Egypt J Med Hum Genet 2020. [DOI: 10.1186/s43042-020-00075-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Abstract
Background
Protein phosphatase 2A (PP2A) functions as a tumor suppressor in many cancers. Cancerous inhibitor of protein phosphatase 2A (CIP2A) inhibits PP2A proteolytic degradation of c-Myc and enhances cell growth and tumor formation in several tissues. CIP2A expression in acute myeloid leukemia (AML) and its effect on outcome of treatment were not reported in Egyptian patients.
Results
No significant difference was detected in CIP2A expression between AML and control groups (P = 0.48). However, in AML patients, those with low CIP2A expression had a longer median overall survival than those with high expression (P = 0.059). CIP2A expression was not related to the clinical and laboratory variables and did not affect response to treatment.
Conclusion
High-CIP2A expression was associated with a trend of shorter overall survival in adult Egyptian AML patients. It might serve as a useful marker to predict poor prognosis. CIP2A may represent a potential target for cancer therapy.
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Abstract
This prospective study assessed circulating miR-92a levels in acute myeloid leukemia (AML) at diagnosis and after induction therapy and followed patients for a maximum of 30 months. The study included 63 consecutive adult AML patients. Circulating miR-92a levels were assessed using real-time polymerase chain reaction (RT-PCR). There was significant rise of miR-92a expression after induction (median (range): 0.297 (0.001-3.438)) in comparison to the reported levels at diagnosis (median (range): 0.236 (0.001-3.305)). Post-induction levels of miR-92a are significantly higher in patients who achieved CR in comparison to patients without CR (median (range): 0.408 (0.017-3.438) vs. 0.01 (0.001-1.010), p<.001). Cox hazard regression analysis identified miR-92a as a significant predictor of OS and DFS in univariate and multivariate analyses. In conclusion, baseline circulating miR-92a in AML patients may be a useful prognostic marker of treatment response and survival over 2.5 years follow up.
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Affiliation(s)
- Reham A Rashed
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Naglaa M Hassan
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Marwa M Hussein
- Medical Oncology Department, National Cancer Institute, Cairo University, Cairo, Egypt
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Abstract
Background: Aberrant expression of mucin-4 (MUC4) is present in a variety of solid cancers, but the expression pattern of MUC4 and its clinical relevance in acute myeloid leukaemia (AML) is unknown. We aimed to evaluate the expression level of MUC4 and explore its prognostic value in newly diagnosed adult patients with AML. Methods: Bone marrow from 70 AML patients and 26 healthy donors was obtained. MUC4 levels were quantified by quantitative real-time PCR. Routine blood indices were measured by standard techniques. Results: Bone marrow MUC4 expression levels were significantly elevated in AML patients compared to controls at median (range) 2.77 (0.7-16.6) and 1.14 (0.5-1.99) respectively (p = 0.005). Moreover, lower MUC4 expression was strongly associated with persistent remission (p = 0.001) while higher MUC4 levels were associated with worse overall as well as disease-free survival (p = 0.011 and p = 0.006, respectively). Thus, its level may act as an indicator of disease progression. High MUC4 expression was identified as an independent prognostic predictor for both overall survival and disease-free survival. Conclusion: MUC4 over-expression is an independent predictor of a poor prognosis in AML patients.
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Affiliation(s)
- A S Abdelhady
- Biochemistry Department, Faculty of Science, Ain Shams University , Cairo, Egypt
| | - F F Abdel Hamid
- Biochemistry Department, Faculty of Science, Ain Shams University , Cairo, Egypt
| | - N M Hassan
- Clinical Pathology Department, National Cancer Institute, Cairo University , Cairo, Egypt
| | - D M Ibrahim
- Biochemistry Department, Faculty of Science, Ain Shams University , Cairo, Egypt
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Allow A, Bakrim NM, Yousef Z, Al-Ani IM, Hassan NM, Kubaysi M, Mustafa MIA. IS THERE ANY EFFECT (S) OF FENUGREEK SEEDS AQUEOUS EXTRACT ON THE REGULARITY OF ESTROUS CYCLE AND QUANTITY OF OVARIAN FOLLICLES OF FEMALE RATS? imjm 2020. [DOI: 10.31436/imjm.v14i1.1410] [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: 11/07/2022]
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26
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El-Shazly SS, Hassan NM, Abdellateif MS, El Taweel MA, Abd-Elwahab N, Ebeid EN. The role of β-catenin and paired-like homeobox 2B (PHOX2B) expression in neuroblastoma patients; predictive and prognostic value. Exp Mol Pathol 2019; 110:104272. [PMID: 31220430 DOI: 10.1016/j.yexmp.2019.104272] [Citation(s) in RCA: 3] [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: 04/18/2019] [Revised: 06/04/2019] [Accepted: 06/17/2019] [Indexed: 12/29/2022]
Abstract
BACKGROUND The expression of β-catenin and paired-like homeobox 2B (PHOX2B) expression were assessed in Neuroblastoma (NB) patients as a diagnostic, prognostic and/or predictive markers. METHODS Bone marrow (BM) samples of 52 NB patients were assessed for the expression of β-catenin by immunohistochemistry (IHC), and PHOX2B by real time PCR (RT-PCR), compared to 12 healthy normal controls (NC). The data were correlated to the clinic-pathological features of the patients, response to treatment and disease relapse. RESULTS β-catenin was expressed in 40 (76.92%) patients (P < .001). While PHOX2B was expressed in 32/52 (61.5%) patients, with a fold change of 0.29 (0.01-40.0, P = .096). β-catenin expression associated significantly with advanced tumor stage, high risk, positive results by MIBG and bone scan (P = .002, P < .001, P = .006, P = .013; respectively). Also it associated significantly with synaptophysin expression in the BM biopsy (P < .001), with a significant concordance (K = 0.519, P < .001). The expression of β-catenin associated significantly with PHOX2B gene expression [28/32 (87.5%), P = .04], and its fold change (P = .027), with a significant measure of agreement (K = 0.297, P = .022). The fold change of PHOX2B gene expression associated significantly with the high risk of the patients (P = .04). Poor response to treatment associated significantly with the expression of neuron specific enolase (NSE), β-catenin and PHOX2B in NB patients (P = .021, P = .019 and P = .040; respectively). The sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of synaptophysin for the diagnosis of BM metastasis in NB patients were (69%, 65.2%, 71.4%, 62.5%; respectively, P = .024). While with β-catenin (93.1%, 43.5%, 67.5%, 83.3%; respectively, P = .003), and PHOX2B expression (65.5%, 34.5%, 59.4%, 50%; respectively, P = .574). CONCLUSION β-Catenin could be used as a sensitive and reliable marker for detection of BM metastasis and also a good predictor for resistance to treatment in NB patients. While, PHOX2B gene expression in BM aspirate could be a marker for high risk patients and poor response to treatment.
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Affiliation(s)
- Samar S El-Shazly
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo 11976, Egypt
| | - Naglaa M Hassan
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo 11976, Egypt
| | - Mona S Abdellateif
- Medical Biochemistry and Molecular Biology, Cancer Biology Department, National Cancer Institute, Cairo University, Cairo 11976, Egypt.
| | - Maha A El Taweel
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo 11976, Egypt
| | - Nahed Abd-Elwahab
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo 11976, Egypt
| | - Emad N Ebeid
- Pediatric Oncology Department, National Cancer Institute, Cairo University, Cairo 11976, Egypt
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Swellam M, Ramadan A, El-Hussieny EA, Bakr NM, Hassan NM, Sobeih ME, EzzElArab LR. Clinical significance of blood-based miRNAs as diagnostic and prognostic nucleic acid markers in breast cancer: Comparative to conventional tumor markers. J Cell Biochem 2019; 120:12321-12330. [PMID: 30825229 DOI: 10.1002/jcb.28496] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 12/17/2018] [Accepted: 01/07/2019] [Indexed: 12/15/2022]
Abstract
microRNAs (miRNAs) are implicated in carcinogenesis and their expression in biological fluids offer great potential as nucleic acid markers for cancer detection and progression. Authors investigated the expression level of miRNAs (miRNA-21, miRNA-126, and miRNA-155) to evaluate their role as diagnostic and prognostic markers for breast cancer compared with other commonly used protein-based markers (CEA and CA15-3). Serum samples from patients with breast cancer (n = 96), patients with benign breast lesion (n = 47), and healthy individuals (n = 39) were enrolled for detection of miRNA expression levels and protein-based tumor markers using fluorescent real-time quantitative polymerase chain reaction and enzyme-linked immunosorbent assay, respectively. Correlation among investigated markers with clinicopathological factors and clinical outcomes were determined. Expression of miRNA-21 and miRNA-155 revealed significant increases in patients with breast cancer compared with both benign and control groups, the same result was reported for tumor markers; on the other hand, miRNA-126 was significantly decreased in breast cancer group as compared with the other two groups. miRNA frequencies were significantly related to clinical staging and histological grading as compared with tumor markers. Patients with breast cancer with increased miRNA-21 and miRNA-155 and decreased miRNA-126 expressions had significantly worse disease-free survival, while only miRNA-21 and miRNA-126 showed poor OS (P< 0.005). In conclusion, investigated miRNAs were superior over tumor markers for the early stage of breast cancer especially those with high-risk factor and their assessment in blood facilitates their role as a potential prognostic molecular marker.
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Affiliation(s)
- Menha Swellam
- Biochemistry Department Genetic Engineering and Biotechnology Research Division, National Research Centre, Giza, Egypt.,High Throughput Molecular and Genetic Laboratory, Center for Excellence for Advanced Sciences, National Research Centre, Giza, Egypt
| | - Amal Ramadan
- Biochemistry Department Genetic Engineering and Biotechnology Research Division, National Research Centre, Giza, Egypt.,High Throughput Molecular and Genetic Laboratory, Center for Excellence for Advanced Sciences, National Research Centre, Giza, Egypt
| | - Enas A El-Hussieny
- Zoology Department, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Noha M Bakr
- Biochemistry Department Genetic Engineering and Biotechnology Research Division, National Research Centre, Giza, Egypt.,High Throughput Molecular and Genetic Laboratory, Center for Excellence for Advanced Sciences, National Research Centre, Giza, Egypt
| | - Naglaa M Hassan
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Mohamed Emam Sobeih
- Medical Oncology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Lobna R EzzElArab
- Clinical Oncology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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Hassan NM, Landorf KB, Shields N, Munteanu SE. Effectiveness of interventions to increase physical activity in individuals with intellectual disabilities: a systematic review of randomised controlled trials. J Intellect Disabil Res 2019; 63:168-191. [PMID: 30407677 DOI: 10.1111/jir.12562] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 09/06/2018] [Accepted: 10/01/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND People with intellectual disabilities (ID) often do not meet recommended guidelines for physical activity. The aim of this study was to systematically review available evidence that evaluated the effectiveness of interventions to increase physical activity in individuals with ID. METHOD Five electronic databases (MEDLINE, CINAHL, EMBASE, SPORTDiscus and Cochrane Central Register of Controlled Trials) were searched from inception of the database to July 2017 to identify randomised controlled trials that evaluated the effectiveness of interventions to improve physical activity among people with ID. Trials were included if they measured at least one objective measure of physical activity. Quality appraisal was completed by two independent reviewers using the Cochrane Risk of Bias Tool. The magnitude of treatment effect was estimated for each intervention by calculating the standardised mean difference (SMD) and associated 95% confidence interval. RESULTS Nine randomised controlled trials (976 participants, 501 women, age range 9 months to 83 years) were included. Four trials evaluated unimodal interventions and five trials evaluated multimodal health promotion programmes based on using supportive environments to enable sustained behavioural changes in physical activity. None of the trials were rated as low risk of bias as all had at least one item on the Cochrane Risk of Bias Tool that was considered to be high risk. No trials were able to implement participant blinding. Three trials found statistically significant beneficial effects of interventions for increasing physical activity. Results showed that a 10-week progressive resistance training programme led to maintenance of physical activity levels at 24 weeks in adolescents with Down syndrome (SMD 0.78, 95% CI 0.17 to 1.40). Additionally, a 12- to 16-month multicomponent diet and physical activity programme produced improvement in physical activity at programme completion in adults with ID (reported effect size of 0.29). Finally, an 8-month physical activity and fitness programme increased physical activity at 8 months in adults with ID (SMD 0.91, 95% CI 0.20 to 1.60). Findings regarding other interventions were inconclusive with small effects that were not statistically significant. CONCLUSIONS There is inconsistent evidence of the effects of interventions for improving physical activity levels in individuals with ID. A progressive resistance training programme was found to maintain physical activity levels in adolescents with Down syndrome, while a multicomponent diet and physical activity programme and a physical activity and fitness programme were found to improve physical activity levels in adults with ID. Future trials using rigorous research designs are required to confirm these findings and establish whether other interventions designed to increase physical activity in people with ID are effective.
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Affiliation(s)
- N M Hassan
- Discipline of Podiatry, School of Allied Health, La Trobe University, Melbourne, Victoria, Australia
- Living with Disability Research Centre, School of Allied Health, La Trobe University, Melbourne, Victoria, Australia
| | - K B Landorf
- Discipline of Podiatry, School of Allied Health, La Trobe University, Melbourne, Victoria, Australia
- Living with Disability Research Centre, School of Allied Health, La Trobe University, Melbourne, Victoria, Australia
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, La Trobe University, Melbourne, Victoria, Australia
| | - N Shields
- Living with Disability Research Centre, School of Allied Health, La Trobe University, Melbourne, Victoria, Australia
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, La Trobe University, Melbourne, Victoria, Australia
- Discipline of Physiotherapy, School of Allied Health, La Trobe University, Melbourne, Victoria, Australia
| | - S E Munteanu
- Discipline of Podiatry, School of Allied Health, La Trobe University, Melbourne, Victoria, Australia
- Living with Disability Research Centre, School of Allied Health, La Trobe University, Melbourne, Victoria, Australia
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, La Trobe University, Melbourne, Victoria, Australia
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Swellam M, Mahmoud MS, Hashim M, Hassan NM, Sobeih ME, Nageeb AM. Clinical aspects of circulating miRNA‐335 in breast cancer patients: A prospective study. J Cell Biochem 2018; 120:8975-8982. [DOI: 10.1002/jcb.28168] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 11/08/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Menha Swellam
- High Throughput Molecular and Genetic Laboratory, Center for Excellences for Advanced Sciences Giza Egypt
- Biochemistry Department, Genetic Engineering and Biotechnology Research Division National Research Centre Dokki Giza Egypt
| | - Magda Sayed Mahmoud
- High Throughput Molecular and Genetic Laboratory, Center for Excellences for Advanced Sciences Giza Egypt
- Biochemistry Department, Genetic Engineering and Biotechnology Research Division National Research Centre Dokki Giza Egypt
| | - Maha Hashim
- High Throughput Molecular and Genetic Laboratory, Center for Excellences for Advanced Sciences Giza Egypt
- Biochemistry Department, Genetic Engineering and Biotechnology Research Division National Research Centre Dokki Giza Egypt
| | - Naglaa M Hassan
- Department of Clinical Pathology National Cancer Institute Cairo Egypt
| | | | - Amira M Nageeb
- High Throughput Molecular and Genetic Laboratory, Center for Excellences for Advanced Sciences Giza Egypt
- Biochemistry Department, Genetic Engineering and Biotechnology Research Division National Research Centre Dokki Giza Egypt
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El-Masry MW, Gouda HM, Shaheen IA, Edesa W, Hassan NM, Ramzy R. Breast cancer resistance protein (BCRP) gene expression in a cohort of adult Egyptian patients with acute myeloid leukemia. Afr Health Sci 2018; 18:958-964. [PMID: 30766560 PMCID: PMC6354849 DOI: 10.4314/ahs.v18i4.15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Acute myeloid leukemia (AML), an aggressive clonal disease, is genetically heterozygous. The prognostic role of expression of Breast Cancer Resistance Protein (BCRP) gene, which behaves as a multidrug transporter, in adult AML is ambiguous. OBJECTIVE The objective is to assess the level of mRNA expression of BCRP gene in newly diagnosed cytogenetically normal adult Egyptian AML patients; and to clarify its potential influence and association between therapeutic responsiveness and disease free survival. METHODS The BCRP gene expression was evaluated by quantifying its mRNA using real time RT-PCR in fifty newly diagnosed cytogenetically normal adult AML patients and 20 healthy normal controls. The expression was evaluated in relation to clinical and prognostic factors, response to treatment and the survival rate. RESULTS BCRP mRNA was over expressed in adult AML patients compared to controls. This study showed a positive statistical correlation between BCRP gene expression and the percent of CD34 expression. Statistical analysis did not reveal any association between BCRP expression level and chemotherapeutic responsiveness or disease free survival rate. CONCLUSION The significance of BCRP gene expression and its function in AML is very complicated, therefore more standardized clinical studies are needed.
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Abdelhalim DA, Elgamal BM, ElKafoury MR, Hassan NM, Hussein MM, Elhefnawi MM, Elfiky AM, Nabil M. MicroRNA-150 down Regulation in Acute Myeloid Leukaemia Patients and Its Prognostic Implication. Open Access Maced J Med Sci 2018; 6:1993-2000. [PMID: 30559849 PMCID: PMC6290449 DOI: 10.3889/oamjms.2018.420] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 10/30/2018] [Accepted: 11/01/2018] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND MicroRNAs (miRNAs) are small, non-coding RNAs that are important for post-transcriptional gene regulation in both healthy and morbid conditions. Numerous miRNAs promote tumorigenesis, while others have a tumour suppressive effects. Acute myeloid leukaemia (AML) is a heterogeneous group of genetically diverse hematopoietic malignancies with variable response to treatment. AIM Our study aimed to investigate the possible role of miR-150 in de novo adult AML and the impact of its level on survival, and we used in the silicon analysis to predict the main target genes involved in miR-150 mediated cancer pathway. MATERIAL AND METHODS We evaluated miR-150 expression profiling assay using TaqMan primer probes RT-PCR in the plasma of 50 adult AML patients, before the start of treatment and at day 28 of treatment, along with 20 normal adult control samples. miR-16 was used as an endogenous reference for standardisation. Follow-up of patients during treatment at day 28 of induction chemotherapy and after one year was done. RESULTS In this study, we found a significantly lower level of miR-150 in AML patients when compared to controls (p = 0.005) with 0.62 fold change than in healthy controls. Patients were divided into two groups: the low miR-150 group (miR-150 < 1) and the high miR-150 group (miR-150 > 1). A statistically significant difference was found between the two groups regarding initial total leukocytic count and initial PB blast count while for the TLC, HB and PLT count at follow up. No difference in the overall survival between the low and the high miR-150 groups could be demonstrated. CONCLUSION Our results suggest that miR-150 functions as a tumour suppressor and gatekeeper in inhibiting cell transformation and that its downregulation is required for leukemogenesis.
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Affiliation(s)
- Dalia A Abdelhalim
- Department of Clinical and Chemical Pathology, Medical Division, National Research Centre, Cairo, Egypt
| | - Basma M Elgamal
- Department of Clinical Pathology, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Mona R ElKafoury
- Department of Clinical and Chemical Pathology, Medical Division, National Research Centre, Cairo, Egypt
| | - Naglaa M Hassan
- Department of Clinical Pathology, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Marwa M Hussein
- Department of Medical Oncology, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Mahmoud M Elhefnawi
- Informatics and System Department, Engineering Research Division, National Research Centre, Cairo, Egypt
| | - Asmaa M Elfiky
- Environmental and Occupational Medicine Department, Environmental Research Division, National Research Centre, Cairo, Egypt
| | - Mohamed Nabil
- Department of Clinical and Chemical Pathology, Medical Division, National Research Centre, Cairo, Egypt
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Hassan NM, Kim YJ, Jang J, Chang BU, Chae JS. Comparative study of precise measurements of natural radionuclides and radiation dose using in-situ and laboratory γ-ray spectroscopy techniques. Sci Rep 2018; 8:14115. [PMID: 30237485 PMCID: PMC6148265 DOI: 10.1038/s41598-018-32220-9] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 08/20/2018] [Indexed: 11/08/2022] Open
Abstract
In this study, in-situ and laboratory γ-ray spectroscopy techniques were compared to evaluate the activity concentration of natural radionuclides in soil. The activity concentrations of 238U (226Ra), 232Th, and 40K in the soil in 11 sites were simultaneously measured with in-situ portable HPGe and the NaI(Tl) detectors. In parallel, 55 soil samples collected from these sites were analyzed with a laboratory γ-ray spectroscopy technique (HPGe). A strong correlation was observed between the in-situ and laboratory HPGe techniques with a linear correlation coefficient (R2) of 0.99 for 226Ra and 232Th and 0.975 for 40K, respectively. The in-situ HPGe technique shows a strong correlation with the NaI(Tl) detector. γ-Rays cps of 226Ra, 232Th, and 40K of the NaI (Tl) detector were then converted to specific activities (Bq kg-1 unit) in soil using the empirical formulas obtained in this study. The absorbed dose rate in air at 1 m height above ground due to these radionuclides was calculated using the Beck's formula and the results were compared with measured values obtained with an high pressure ionization chamber. The results of the calculated and measured dose rate show a strong correlation of R2 = 0.96. The reliability and precision of analytical spectroscopy techniques of radioactivity and radiation dose were confirmed in this work.
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Affiliation(s)
- N M Hassan
- Department of Natural Radiation Safety, Korea Institute of Nuclear Safety, 62, Gwahak-ro, Yuseong-gu, Daejeon, 34142, Republic of Korea
- Department of Physics, Faculty of Science, Zagazig University, PO Box 44519, Zagazig, Egypt
| | - Y J Kim
- Department of Natural Radiation Safety, Korea Institute of Nuclear Safety, 62, Gwahak-ro, Yuseong-gu, Daejeon, 34142, Republic of Korea.
| | - J Jang
- Department of Natural Radiation Safety, Korea Institute of Nuclear Safety, 62, Gwahak-ro, Yuseong-gu, Daejeon, 34142, Republic of Korea
| | - B U Chang
- Department of Natural Radiation Safety, Korea Institute of Nuclear Safety, 62, Gwahak-ro, Yuseong-gu, Daejeon, 34142, Republic of Korea
| | - J S Chae
- Department of Natural Radiation Safety, Korea Institute of Nuclear Safety, 62, Gwahak-ro, Yuseong-gu, Daejeon, 34142, Republic of Korea
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Hassan NM, Akhter R, Al-Aubaidy H, Flatau A. Undergraduate dental students' perceptions of head and neck anatomy teaching in Australia. Eur J Dent Educ 2018; 22:e337-e342. [PMID: 29091339 DOI: 10.1111/eje.12299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/05/2017] [Indexed: 06/07/2023]
Abstract
INTRODUCTION Most Australian universities have abbreviated the anatomy curriculum and modified its mode of delivery. This study examines dental student perceptions of different methods of head and neck anatomy teaching with respect to the adequacy of allocated time and the relative meaningfulness of the teaching methods. METHODS All second-year students in the School of Dentistry and Health Sciences at Charles Sturt University (CSU) were invited to complete a matrix-grid questionnaire. Participants were asked to score four methods of teaching (lectures, study of prosected materials, tutorials and quizzes) using a 5-point Likert scale. The questionnaire included questions about the time adequacy for anatomy lectures, tutorials and laboratory study, and the potential value of learning anatomy through the study of prosected materials. SPSS (Version 21.0) was used to analyse the data, and statistical significance was set at 0.05. RESULTS Seventy-two students (79.5%) responded to the survey. Overall, learning anatomy through the study of prosected materials was the single highest scored method, followed by lectures, tutorials and quizzes. Graduate entrants felt that not enough time was devoted to learning anatomy through the study of prosected materials, compared with school leavers (89.4% and 10.6%, respectively), having one extra session of learning in the anatomy laboratory (71.4% and 28.6%, respectively) and adding dissection (75.0% and 25.0%, respectively) would be helpful. CONCLUSION This study demonstrates that dental students perceive the study of prosected materials in the wet laboratory as the most valuable method of learning anatomy, but an extended anatomy curriculum would be even more effective and appreciated.
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Affiliation(s)
- N M Hassan
- School of Dentistry and Health Sciences, Charles Sturt University, Orange, NSW, Australia
| | - R Akhter
- Faculty of Dentistry, The University of Sydney, Westmead, NSW, Australia
| | - H Al-Aubaidy
- Human Anatomy and Neuroscience, Faculty of Health, School of Medicine, University of Tasmania, Hobart, TAS, Australia
| | - A Flatau
- School of Dentistry and Health Sciences, Charles Sturt University, Orange, NSW, Australia
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Swellam M, El Magdoub HM, Hassan NM, Hefny MM, Sobeih ME. Potential diagnostic role of circulating MiRNAs in breast cancer: Implications on clinicopathological characters. Clin Biochem 2018; 56:47-54. [PMID: 29679553 DOI: 10.1016/j.clinbiochem.2018.04.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 04/09/2018] [Accepted: 04/16/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND Circulating miRNAs are stable in body fluids and resembles their levels in cancer tissue/cells. They have been expressed in many cancers among them is breast cancer. Authors aimed to investigate the expression levels of three circulating oncomiRNAs (miRNA-21, miRNA-222 and miRNA-373) in serum samples as a minimally non-invasive method for early detection of breast cancer, and study their relation with clinicopathological characters. METHODS MiRNAs expression levels were determined using quantitative real-time polymerase chain reaction (qPCR) in serum samples from three groups: primary breast cancer patients (n = 137), benign breast lesion patients (n = 60), and healthy individuals as control group (n = 38). Statistical analyses were carried out using SPSS. RESULTS Significant differences were observed between the expression levels of the studied miRNAs in the investigated groups, as their median levels were increased in breast cancer patients followed by benign group patients then the healthy individuals. MiRNA-373 reported the highest diagnostic efficacy as compared to miRNA-21 and miRNA-222 with high area under the curve (AUC equals 0.987). The relation between tested miRNAs and clinicopathological factors revealed significant difference with clinical stages and histological grades. Level of miRNA-21 and miRNA-373 were statistically significantly higher in invasive duct carcinoma (IDC) as compared to non-IDC. Similarly, their levels were increased in lymph node metastasis (P < 0.01). MiRNA-222 and miRNA-373 were significantly increased in positive PgR and positive Her-2/neu status, respectively. CONCLUSION Assessment of miRNAs in serum samples can be applied as minimally non-invasive markers for early detection of breast cancer, and as discriminator between different clinicopathological characters.
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MESH Headings
- Adult
- Aged
- Biomarkers, Tumor/blood
- Biomarkers, Tumor/metabolism
- Breast/metabolism
- Breast/pathology
- Breast Neoplasms/blood
- Breast Neoplasms/diagnosis
- Breast Neoplasms/metabolism
- Breast Neoplasms/pathology
- Carcinoma, Ductal, Breast/diagnosis
- Carcinoma, Ductal, Breast/metabolism
- Carcinoma, Ductal, Breast/pathology
- Carcinoma, Ductal, Breast/secondary
- Diagnosis, Differential
- Early Diagnosis
- Female
- Gene Expression Regulation, Neoplastic
- Humans
- Lymphatic Metastasis/diagnosis
- Lymphatic Metastasis/pathology
- MicroRNAs/blood
- MicroRNAs/metabolism
- Middle Aged
- Neoplasm Grading
- Neoplasm Staging
- RNA, Neoplasm/blood
- RNA, Neoplasm/metabolism
- Up-Regulation
- Young Adult
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Affiliation(s)
- Menha Swellam
- Biochemistry Department, Genetic Engineering and Biotechnology Research Division, High Throughput Molecular and Genetic Laboratory, Center for Excellences for Advanced Sciences, National Research Centre, Dokki, Giza, Egypt.
| | - Hekmat M El Magdoub
- Biochemistry Department, Faculty of Pharmacy, Misr International University, Cairo, Egypt
| | - Naglaa M Hassan
- Clinical Pathology Department, National Cancer Institute, Cairo, Egypt
| | - Mona M Hefny
- Medical Biochemistry Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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Swellam M, Hashim M, Mahmoud MS, Ramadan A, Hassan NM. Aberrant Expression of Some Circulating miRNAs in Childhood Acute Lymphoblastic Leukemia. Biochem Genet 2018; 56:283-294. [PMID: 29460192 DOI: 10.1007/s10528-018-9844-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [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: 11/09/2017] [Accepted: 01/27/2018] [Indexed: 01/23/2023]
Abstract
Acute lymphoblastic leukemia (ALL) is a heterogeneous cancer commonly affecting children due to dysregulation of miRNA expression. In the current study, authors investigated the expression profile for miRNA-125b-1 and miRNA-203 among childhood ALL. Blood samples were collected from newly diagnosed childhood ALL and healthy control children. The expression profile for candidate miRNAs was detected using quantitative RT-PCR analysis. Statistical analysis were performed using receiver operating characteristic curve (ROC) to examine the diagnostic efficacy of the two miRNA and their levels among ALL clinicopathological factors and phenotypes. The median expression level for miRNA-125b-1 was significantly high in childhood ALL; while miRNA-203 level was significantly low in childhood ALL as compared to control ones. MiRNA-125-1 reported significant increase in T-ALL as compared to other ALL phenotypes. Median miRNA-203 level was high in T-ALL followed by pre-B-ALL although no significant difference was reported. Clinicopathological factors did not emphasize significance with either detected miRNAs. Using ROC curve the diagnostic efficacy was significant with an area under the curve 0.858 for miRNA-125b-1 (83.72, 100%) and 0.878 for miRNA-203 (97.67, 86.96%). The combination of the two key miRNAs revealed absolute sensitivity (100%). MiRNA-125b-1 and miRNA-203 can be useful molecular markers for diagnosis of ALL. Further studies with large cohort are warranted to validate these results.
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Affiliation(s)
- Menha Swellam
- Genetic Engineering and Biotechnology Research Division, Biochemistry Department, High Throughput Molecular and Genetic laboratory, Center for Excellences for Advanced Sciences, National Research Centre, El-Bohouth Street, Dokki, Giza, 12622, Egypt. .,Department of Biochemistry, Genetic Engineering and Biotechnology Research Division, National Research Centre, Dokki, Giza, Egypt.
| | - Maha Hashim
- Genetic Engineering and Biotechnology Research Division, Biochemistry Department, High Throughput Molecular and Genetic laboratory, Center for Excellences for Advanced Sciences, National Research Centre, El-Bohouth Street, Dokki, Giza, 12622, Egypt.,Department of Biochemistry, Genetic Engineering and Biotechnology Research Division, National Research Centre, Dokki, Giza, Egypt
| | - Magda Sayed Mahmoud
- Genetic Engineering and Biotechnology Research Division, Biochemistry Department, High Throughput Molecular and Genetic laboratory, Center for Excellences for Advanced Sciences, National Research Centre, El-Bohouth Street, Dokki, Giza, 12622, Egypt.,Department of Biochemistry, Genetic Engineering and Biotechnology Research Division, National Research Centre, Dokki, Giza, Egypt
| | - Amal Ramadan
- Genetic Engineering and Biotechnology Research Division, Biochemistry Department, High Throughput Molecular and Genetic laboratory, Center for Excellences for Advanced Sciences, National Research Centre, El-Bohouth Street, Dokki, Giza, 12622, Egypt.,Department of Biochemistry, Genetic Engineering and Biotechnology Research Division, National Research Centre, Dokki, Giza, Egypt
| | - Naglaa M Hassan
- Department of Clinical Pathology, National Cancer Institute, Cairo, Egypt
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Abdel-Moneim AS, Kamel MM, Hassan NM. Evolutionary and genetic analysis of human bocavirus genotype-1 strains reveals an evidence of intragenomic recombination. J Med Microbiol 2017; 66:245-254. [PMID: 28086073 DOI: 10.1099/jmm.0.000432] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
PURPOSE Human bocavirus (HBoV) exsits in four genotypes: 1 to 4, with HBoV-1 being the most prevalent genotype. The aim of the current study was to genetically analyze the full-length genome of the HBoV-1 of recently detected Egyptian strains. METHODOLOGY Seven overlapping sets of primers were developed to amplify an almost complete HBoV-1 genome from the clinical samples. The primer sets were tested on three recently identified Egyptian HBoV-1 strains with viral loads ≥105 ml-1. Sequencing was conducted using the same sets of primers. HBoV-1 virus strains were genetically analyzed based on the sequences of their complete genomes and the individual ORFs. RESULTS The new sets of primers successfully amplified the three tested strains. Sequence analysis of the full-length genome of the HBoV-1 revealed a considerable level of genetic heterogenicity between different strains. Based on the full genome and VP1 ORF, HBoV-1 viruses were clustered into three main lineages, A to C, and lineage A was further subdivided into three sublineages, A1-A3. The Egyptian strains were clustered within two sublineages, A1 and A2. New amino acid substitutions were detected in NS1 and VP1/VP2 proteins. Both inter- and intragenomic recombination events were detected among the Egyptian strains. CONCLUSION The existence of both intragenomic recombination event and multiple amino acid substitutions in the examined Egyptian HBoV-1 strains elucidates considerable level of genetic alterations among bocaviruses. Their possible effects on the virus virulence and multiplication efficiency need to be investigated.
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Affiliation(s)
- Ahmed S Abdel-Moneim
- Virology Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 62511, Egypt.,Microbiology Department, College of Medicine, Taif University, Al-Taif 21944, Saudi Arabia
| | - Mahmoud M Kamel
- Clinical Pathology Department, National Cancer Institute, Cairo University, Giza, Egypt
| | - Naglaa M Hassan
- Clinical Pathology Department, National Cancer Institute, Cairo University, Giza, Egypt
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Shafik RE, Hassan NM, El Meligui YM, Shafik HE. The Meningioma 1 (MN1) Gene is an Independent Poor Prognostic Factor in Adult Egyptian Acute Myeloid Leukemia Patients. Asian Pac J Cancer Prev 2017; 18:609-613. [PMID: 28440611 PMCID: PMC5464473 DOI: 10.22034/apjcp.2017.18.3.609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Aim: To determine the prognostic importance of meningioma 1 (MN1) gene expression levels in the context of other predictive markers for acute myeloid leukemia (AML) cases. Methods: MN1 expression was measured in 85 newly diagnosed adults younger than 60 years by real-time reverse-transcriptase polymerase chain reaction. Results: At diagnosis 67.4% of cases had elevated MN1 expression, this being associated with a worse prognosis, higher incidence of lymphadenopathy and CD34 transcript expression (p=0.02 and <0.001, respectively). No other molecular or clinical characteristics were significantly associated with MN1expression. Patients with high MN1 expression had lower complete response rate at day 15 compared to patients with low MN1 expression (p=0.09) and a significantly higher relapse rate (21.1% versus 7.7%, respectively, p=0.04). Patients with high MN1 expression had shorter TTP compared to those with low expression, p= 0.07. Conclusion: MN1 expression may predict outcome in AML patients. The MN1 gene and micro RNA expression suggest a biological feature that could be used as therapeutic targets.
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Affiliation(s)
- Roxan E Shafik
- National Cancer Institute, Cairo University, Medical Oncology Department, Egypt.
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Ibrahim MH, Rashed RA, Hassan NM, Al-Azhary NM, Salama AI, Mostafa MN. ssociation of Cytochrome P450-1B1 Gene Polymorphisms with Risk of Breast Cancer: an Egyptian Study. Asian Pac J Cancer Prev 2016; 17:2861-2866. [PMID: 27356703] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023] Open
Abstract
It is thought that population characteristics of breast cancer may be due to a variation in the frequency of different alleles of genes such as CYP1B1. We aimed to determine the association of CYP1B1 polymorphisms in 200 breast cancer cases and 40 controls by PCR-RFLP. Frequencies were assessed with clinical and risk factors in Egyptian patients. The genotype LV and the Leu allele frequencies for patients and controls were 42.9% and 50%, and 52.9% and 53.3%, respectively), with no significant differences observed (P values = 0.8 and 0.6, respectively). There was also no significant association between genotypes and any risk factors for cases (>0.05) except laterality and metastasis of the tumor (P values=0.006 and 0.06, respectively). The CYP1B1 polymorphism Val432Leu was not associated with breast cancer in Egypt, but may provide clues for future studies into early detection of the disease.
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Affiliation(s)
- Mona H Ibrahim
- Department of Clinical and Chemical Pathology, National Research Center, Cairo University, Cairo, Egypt E-mail :
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Sahoo SK, Ishikawa T, Tokonami S, Sorimachi A, Kranrod C, Janik M, Hosoda M, Hassan NM, Chanyotha S, Parami VK, Yonehara H, Ramola RC. A comparative study of thorium activity in NORM and high background radiation area. Radiat Prot Dosimetry 2010; 141:416-419. [PMID: 20846972 DOI: 10.1093/rpd/ncq239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Several industrial processes are known to enrich naturally occurring radioactive materials (NORM). To assess such processes with respect to their radiological relevance, characteristic parameters describing this enrichment will lead to interesting information useful to UNSCEAR. In case of mineral treatment plants, the high temperatures used in smelting and refining processes lead to high concentrations of (238)U and (232)Th. Also due to thermal power combustion, concentration of U and Th in the fly ash increases manifold. NORM samples were collected from a Thailand mineral treatment plant and Philippine coal-fired thermal power plants for investigation. Some studies are initiated from a high background radiation area near Gopalpur of Orissa state in India. These NORM samples were analysed by gamma-ray spectrometry as well as inductively coupled plasma mass spectrometry. The radioactivity in case of Orissa soil samples is found to be mainly contributed from thorium. This study attempts to evaluate levels of thorium activity in NORM samples.
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Affiliation(s)
- S K Sahoo
- Research Centre for Radiation Protection, National Institute of Radiological Sciences, Inage, Chiba, Japan.
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Janik M, Tokonami S, Kranrod C, Sorimachi A, Ishikawa T, Hassan NM. International intercomparisons of integrating radon/thoron detectors with the NIRS radon/thoron chambers. Radiat Prot Dosimetry 2010; 141:436-439. [PMID: 20852267 DOI: 10.1093/rpd/ncq230] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Intercomparisons of radon/thoron detectors play an important role not only for domestic radon/thoron survey but also for international or interregional discussion about radon/thoron mapping in dwellings as well as that in the soil. For these purposes, it is necessary to improve and standardise technical methods of measurement and to verify quality assurance by intercomparisons between laboratories. Therefore, the first thoron international intercomparison was provided at the NIRS (National Institute of Radiological Sciences, Japan) thoron chamber with a 150 dm(3) inner volume. In addition, a second intercomparison of radon detectors was conducted at NIRS with a 24.4 m(3) inner volume walk-in radon chamber. Only etched-track detectors were used during thoron intercomparison as well as three types for the radon intercomparison: etched-track, charcoal and electret. In general, 45 % results for thoron experiment do not differ more than 20 % from the reference value of thoron concentration and 69 % for radon.
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Affiliation(s)
- M Janik
- Research Centre for Radiation Protection, National Institute of Radiological Sciences, Inage, Chiba, Japan
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Kabbash IA, Mekheimer SL, Hassan NM, Al-Nawawy AN, Attalla AA. Evaluation of HIV voluntary counselling and testing services in Egypt. Part 2: service providers' satisfaction. East Mediterr Health J 2010; 16:491-497. [PMID: 20799547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Voluntary counselling and testing (VCT) services are major components of HIV prevention and treatment efforts. A study in Egypt aimed to determine the satisfaction of service providers at VCTs to identify strengths and weaknesses in the service. Direct interviews with all 50 VCT team members and focus group discussions with 16 counsellors showed that the majority believed that they had received enough training (90%), but still 66% wanted further training. Only 50% reported receiving sufficient incentives. Problems that were highlighted included absence of a fixed job description, lack ofadministrative support, unclear working rules and regulations and lack of proper community awareness. Counsellors expressed the need for improving working environment to ensure privacy and confidentiality.
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Affiliation(s)
- I A Kabbash
- Department of Public Health and Community Medicine, Tanta Faculty afMedicine, Tanta, Egypt.
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Kabbash IA, Hassan NM, Al-Nawawy AN, Attalla AA, Mekheimer SI. Evaluation of HIV voluntary counselling and testing services in Egypt. Part 1: client satisfaction. East Mediterr Health J 2010; 16:481-490. [PMID: 20799546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
HIV voluntary counselling and testing (VCT) services were launched in Egypt in 2005. A study of all functioning VCT centres in Egypt (7 mobile and 9 fixed) aimed to determine the profile of clients and their level of satisfaction to identify strengths and weaknesses in the service. In direct interviews with a sample of 928 clients, the main motive for seeking VCT was risky sexual behaviour (34.2%). More females than males sought services because of partners' risky sexual behaviour. More than 90% of the clients were satisfied with the counselling service. Only 41.4% were willing to discuss the test results with their partners. Male sex, higher education level and attendance at fixed VCT centres were associated with higher satisfaction.
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Affiliation(s)
- I A Kabbash
- Department of Public Health and Community Medicine, Tanta Faculty of Medicine, Tanta, Egypt.
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Kabbash IA, El-Gueneidy M, Sharaf AY, Hassan NM, Al-Nawawy N. Needs assessment and coping strategies of persons infected with HIV in Egypt. East Mediterr Health J 2008; 14:1308-1320. [PMID: 19161106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The aims of this study were to identify the psychosocial and health care needs of persons living with HIV/AIDS and to determine their coping strategies. The study was conducted in 3 governorates of Egypt on 153 people infected with HIV. The data were collected using a structured questionnaire and in-depth interviews. The majority of the people had been forced to change the pattern of their sexual behaviour. Fear of stigmatization and feelings of anxiety, hopelessness and depression were frequently reported, resulting in a negative psychosocial impact on the infected person. Decreasing stigma and providing psycho-social support would help people living with HIV/AIDS to utilize effective ways of coping with the negative sequelae of the infection.
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Affiliation(s)
- I A Kabbash
- Department of Public Health, Social and Preventive Medicine, Faculty of Medicine, University of Tanta, Tanta, Egypt.
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Akhter R, Hassan NM, Aida J, Kanehira T, Zaman KU, Morita M. Association between experience of stressful life events and muscle-related temporomandibular disorders in patients seeking free treatment in a dental hospital. Eur J Med Res 2007; 12:535-540. [PMID: 18024262] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023] Open
Abstract
OBJECTIVES Psychological factors are known to play an important role in the etiology and maintenance of temporomandibular disorders. Since there have been very few studies on this issue in Asian countries, the study was aimed to investigate the relationship between various stressful life events and temporomandibular disorders in patients seeking free treatment in a Dental Hospital, Bangladesh. MATERIALS AND METHODS Five hundred and twenty Bangladeshi adults (370 males and 150 females; mean age, 30.9 +/- 8.2 years) participated in this study. The subjects were given a questionnaire to evaluate their stress status in the last 12 months. The Research Diagnostic Criteria for TMD (RDC/TMD) was used as TMD diagnostic system by three standardized examiners. Two hundred and thirty-six patients were RDC/TMD-defined TMD-positive and were subsequently classified into 7 groups: group I, myofacial pain only; group II, disk displacement only; group III, joint pain only; group IV, myofacial pain and disc displacement; group V, myofacial pain and joint pain; group VI, disc displacement and joint pain; and group VII, myofacial pain, disk displacement and joint pain. Two hundred and eighty-four subjects were RDC/TMD-defined TMD-negative subjects (controls). Adjusted odds ratios were calculated by multiple logistic regression analysis. RESULTS Logistic regression analysis revealed that patients diagnosed with myofacial pain (group I) and a combination of myofacial and joint pain (group V) had significantly higher levels of financial and job stress than did the controls. Self-health-related stress and stress related to a spouse or deaths of a relative were also identified as predisposing factors for myofacial pain (group I). CONCLUSION This study suggests that myofacial pain is more common in individuals with various types of psychological stress. When treating patients with facial pain, dentists should consider the possible presence of psychological factors.
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Affiliation(s)
- R Akhter
- Department of Preventive Dentistry, Division of Oral Health Science, Hokkaido University Graduate School of Dental Medicine, West 7, North 13, Kita-ku, Sapporo 060-8586 Japan
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Kabbash IA, El-Sayed NM, Al-Nawawy AN, Abou Salem MES, El-Deek B, Hassan NM. Risk perception and precautions taken by health care workers for HIV infection in haemodialysis units in Egypt. East Mediterr Health J 2007; 13:392-407. [PMID: 17684860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
A cross-sectional study was made in 32 haemodialysis units in the the Nile delta, Egypt to evaluate knowledge and practices towards risk of HIV infection by 317 health care workers. Exposure to needle-stick injury was reported by 48.6% in the previous year. Significantly more workers in government units than in private units had good knowledge of bloodborne infections, universal blood precautions and safe disposal of contaminated items, and recognized asymptomatic HIV patients as a risk. Previous training, but not years of experience, influenced knowledge. Despite good knowledge, the performance of health workers was poor for universal blood precautions, and was worse in private haemodialysis units.
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Affiliation(s)
- I A Kabbash
- Department of Public Health, Faculty of Medicine, University of Tanta, Tanta, Egypt.
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Nemat Alla MM, Hassan NM. Changes of antioxidants levels in two maize lines following atrazine treatments. Plant Physiol Biochem 2006; 44:202-10. [PMID: 16777423 DOI: 10.1016/j.plaphy.2006.05.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2005] [Indexed: 05/10/2023]
Abstract
Growth and antioxidants levels of shoot of 10-d-old maize lines (Zea mays L. Hybrid 351 and Giza 2) differentially responded to atrazine treatment at the recommended field dose (RFD) during the following 20 d. Atrazine significantly reduced shoot fresh and dry weights but significantly accumulated H(2)O(2), lipid peroxides and carbonyl groups in Giza 2 during the whole experiment; an effect that prolonged with either elapse of time or increasing the herbicide dose. Meanwhile, ascorbic acid (AsA) and reduced glutathione (GSH) contents were significantly decreased along with significant inhibitions in activities of superoxide dismutase (SOD; EC 1.15.1.1), catalase (CAT; EC 1.11.1.6), ascorbate peroxidase (APX; EC 1.11.1.7), guaiacol peroxidase (GPX; EC 1.11.1.7), and glutathione-S-transferase (GST; EC 2.5.1.18). Similar responses were observed in Hybrid 351 only during the first 12 d, and seemed to be overcome thereafter. These findings indicate an induced oxidative stress in maize following atrazine treatments. Such state appeared to be counterbalanced in Hybrid 351 but continued in Giza 2 concluding Giza 2 as more susceptible to atrazine than Hybrid 351. Therefore, the differential susceptibility of Giza 2 to atrazine is related to deficiency in antioxidant levels.
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Affiliation(s)
- M M Nemat Alla
- Botany Department, Faculty of Science at Damietta, Mansoura University, Damietta, Egypt.
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El Bushra HE, Hassan NM, Al-Hamdan NA, Al-Jeffri MH, Turkistani AM, Al-Jumaily A, Ali MA, Rahama AM. Determinants of case fatality rates of meningococcal disease during outbreaks in Makkah, Saudi Arabia, 1987-97. Epidemiol Infect 2000; 125:555-60. [PMID: 11218206 PMCID: PMC2869639 DOI: 10.1017/s0950268800004805] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
We studied case-fatality rates (CFRs) among cases of meningococcal disease (MCD) admitted to Makkah (Saudi Arabia) hospitals during the period 1988-97. Of 483 cases, 431 (89.2%) were due to strains of serogroup A, 31 (6.4%) to serogroup W135, 16 (3.3%) to serogroup C, and 5 (10%) to serogroup B. Eighty-one patients died (case fatality rate (CFR)) 16.8%, 95% CI 13.5%, 20.4%). The CFR in infections due to serogroup A strains was 14.8%, and for other serogroups it was 32.7% (95% CI 20.3%, 47.1%). The CFR of MCD due to N. meningitidis serogroup A increased steadily with age (P<0.05). Seeking first medical help at a foreign Hajj medical mission and being treated in a non-specialized hospital were associated with a higher case fatality rate.
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Affiliation(s)
- H E El Bushra
- King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
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Atta-Ur-Rahman AU, Choudhary MI, Parvez K, Ahmed A, Akhtar F, Nur-E-Alam M, Hassan NM. Quinolizidine alkaloids from Sophora alopecuroides. J Nat Prod 2000; 63:190-192. [PMID: 10691706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A new matrine-type alkaloid, 7alpha-hydroxysophoramine (1), was isolated from the aerial parts of Sophora alopecuroides together with eight known alkaloids, 12beta-hydroxysophocarpine (2), sophoramine (3), 14beta-hydroxymatrine, matrine, sophoridine, sophocarpine, adenocarpine, and baptifoline. The structures of compounds 1-3 were confirmed through single-crystal X-ray diffraction analysis.
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Affiliation(s)
- A u Atta-Ur-Rahman
- International Center for Chemical Sciences, H.E.J. Research Institute of Chemistry, University of Karachi, Karachi-75270, Pakistan
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Dimitrijević SM, Humer U, Shehadeh M, Ryves WJ, Hassan NM, Evans FJ. Analysis and purification of phorbol esters using normal phase HPLC and photodiode-array detection. J Pharm Biomed Anal 1996; 15:393-401. [PMID: 8951701 DOI: 10.1016/s0731-7085(96)01867-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
For the first time a normal-phase HPLC method using photodiode-array detection is described for the analysis and purification of phorbol esters. The use of the method is demonstrated with examples of 10 different tigliane and daphnane esters (TPA, DOPP, DOPPA, Sap A, Sap B, Sap C, Sap D, Thy A, Ro and Rx). Both analytical and semipreparative techniques were developed. The method has been used in the final purification of DOPP and Rx from plant extracts. The method can be employed in the areas of phytochemistry, biochemistry and pharmacology/toxicology, where small samples of the toxic materials are required for research.
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Affiliation(s)
- S M Dimitrijević
- Department of Pharmacognosy, School of Pharmacy, University of London, UK
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Gordge PC, Evans AT, Ryves WJ, Sharma P, Hassan NM, Aitken A, Evans FJ. Molecular modelling of tumour-promoting and non-promoting diterpene esters and molecular co-ordinates of the potent irritant resiniferatoxin. Cancer Lett 1993; 73:77-84. [PMID: 8221633 DOI: 10.1016/0304-3835(93)90248-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The lowest energy conformer of seventeen diterpenes, representing five different phorbol and daphnane diterpene nuclei, has been generated. TPA possessed the highest minimum free energy of these compounds; all other compounds possessed a lower minimum free energy. Compounds based on the resiniferonol nucleus possessed the lowest minimum free energy (9.4-16.6% of that of TPA). The molecular co-ordinates of the non-promoting but potent irritant resiniferatoxin (Rx) are also reported. These studies may be important in elucidation of the biochemical mechanisms of action of diterpene esters, including an understanding of the interactions of diterpene esters with the phorbol ester binding domain of the protein kinase C isoform family.
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Affiliation(s)
- P C Gordge
- Department of Pharmacognosy, School of Pharmacy, University of London, UK
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