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Ali A, El-Hefedy A, Sayed D, Osman A. Clinicolaboratory Characteristics and Outcome of Pediatric Acute Lymphoblastic Leukemia in a Resource-Limited Setting: A Study from South Egypt. Kasr-Al-Aini J of Clin Onc and Nuc Med 2022. [DOI: 10.21608/resoncol.2021.82375.1147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022] Open
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2
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Tanios E, Ahmed TM, Shafik EA, Sherif MF, Sayed D, Gaber N, Hassan Y. Efficacy of adipose-derived stromal vascular fraction cells in the management of chronic ulcers: a randomized clinical trial. Regen Med 2021; 16:975-988. [PMID: 34596433 DOI: 10.2217/rme-2020-0207] [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] [Indexed: 11/21/2022] Open
Abstract
Background: Cell therapy is a promising method for improving healing in chronic ulcers through delivery of isolated adipose-derived stromal vascular fraction. Objectives: This study investigates the autologous stem cell yield of adipose tissue and its efficacy in chronic ulcers compared with conventional methods. Methods: This study was a randomized controlled trial. After the study design and protocol were established and ethical committee approval was obtained, we enrolled 100 patients divided into study and control groups. In the study group, we performed debridement and autologous stem cell injection every 3 weeks. The control group was treated with debridement and conventional dressing. Assessments included clinical and histological parameters. Results: The study group showed improved healing. Conclusion: Using autologous adipose-derived stromal vascular fraction cells is an effective treatment method for chronic ulcers. This study was registered on the Pan-African Clinical Trial Registry and the number of the registry was PACTR201709002519185.
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Affiliation(s)
- Emil Tanios
- Plastic Surgery Department, Faculty of Medicine, Assiut University, 71111, Egypt
| | - Tohamy M Ahmed
- Plastic Surgery Department, Faculty of Medicine, Assiut University, 71111, Egypt
| | - Engy A Shafik
- Clinical Pathology Department, South Egypt Cancer Institute, Assiut University, 71111, Egypt
| | | | - Douaa Sayed
- Clinical Pathology Department, South Egypt Cancer Institute, Assiut University, 71111, Egypt
| | - Noha Gaber
- Clinical Pathology Department, South Egypt Cancer Institute, Assiut University, 71111, Egypt
| | - Youssef Hassan
- Plastic Surgery Department, Faculty of Medicine, Assiut University, 71111, Egypt
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Abdel Hameed MR, Nafady HA, Mostafa MI, Sayed D, Obiedallah AA. Possible Role of CD11a in Primary Immune Thrombocytopenia Patients on Immunosuppressive Therapy. J Blood Med 2021; 12:197-205. [PMID: 33790683 PMCID: PMC8007592 DOI: 10.2147/jbm.s300717] [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: 01/10/2021] [Accepted: 03/16/2021] [Indexed: 11/30/2022] Open
Abstract
Background and Objectives Immune thrombocytopenia (ITP) is one of the autoimmune diseases that presented by thrombocytopenia and increased risk of bleeding. Etiology of immune thrombocytopenia (ITP) is very complex. Lymphocyte function associated antigen-1 (LFA-1) plays important role in ITP. The aim of this study was evaluation of expression of CD11a on lymphocytes to explore its possible role in primary ITP patients also, regarding severity and response to immunosuppressive treatment. Patients and Methods This is a cross-sectional case-control study. Forty adult patients aged (18:58) years, 29 females and 11 males were enrolled as newly diagnosed primary ITP. Forty age and sex matched control subjects were randomly selected. The expression of CD11a on lymphocyte subpopulations (CD3+ T cells, CD3+CD4+ T cells and CD19+ B cells) was analyzed by flowcytometry at the start of the study and after 6 months of follow-up. Results The mean fluorescence intensity (MFI) of CD11a on CD3+ T and CD19+ B lymphocytes was significantly highly increased in ITP patients compared to healthy controls while MFI of CD11a on CD3+ CD4+Tclls was non-significant. MFI of CD11a on CD3+ and CD19+ B lymphocytes showed non-significant elevation with platelet count or bleeding score. MFI of CD11a on CD3+ showed significant highly increased level in refractory ITP compared with responder cases. Conclusion CD11a had possible role in the pathogenesis of ITP. Immunosuppressive therapy in ITP did not affect the level of CD11a expression on T and B lymphocytes. Levels of CD11a do not reflect the severity of ITP neither platelet count nor bleeding score. Increased MFI of CD11a in CD3+T lymphocytes of ITP patients may cause resistance to immunosuppressive therapy.
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Affiliation(s)
- Muhamad R Abdel Hameed
- Hematology Unit, Department of Internal Medicine, Assiut University Hospitals, Assiut University, Assiut, Egypt.,Bone Marrow Transplantation Unit, South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | - Howiada A Nafady
- Hematology Unit, Department of Internal Medicine, Assiut University Hospitals, Assiut University, Assiut, Egypt.,Bone Marrow Transplantation Unit, South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | | | - Douaa Sayed
- Department of Clinical Pathology, South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | - Ahmad A Obiedallah
- Critical Care Unit, Department of Internal Medicine, Assiut University Hospitals, Assiut University, Assiut, Egypt
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Abdallah GEM, Elbiih EAS, Sayed D, Moeen SM, Gafer S, Thabet AF. Revisiting the management of chronic ITP; a randomized controlled clinical trial. Platelets 2020; 32:243-249. [PMID: 32151176 DOI: 10.1080/09537104.2020.1738367] [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] [Indexed: 10/24/2022]
Abstract
The balance between therapy effectiveness and economic efficiency in chronic immune thrombocytopenia (ITP) becomes more confusing. This single-center open label randomized controlled trial evaluates the effectiveness and safety of hydroxychloroquine in chronic ITP patients against other affordable second-line treatments. It is registered under number (NCT03229746) at Clinical Trials.gov. 120 patients were recruited and randomly allocated to three arms of hydroxychloroquine, vincristine, and azathioprine equally. Platelet counts of more than 100 × 109/L were interpreted as complete response (CR), while response (R) was determined as platelet counts ranging from 30 × 109/L to less than 100 × 109/L with the doubling of the pretreatment platelet count. Overall response (OR) was defined to include both CR and R. Patients were monitored every 6 weeks for a total of 24 weeks. The population baseline characteristics regarding age, sex, duration of the disease, baseline platelets count, and presence of antinuclear antibodies ANA or antiplatelet antibodies were similar among tested groups. There was a significant difference in the overall response between hydroxychloroquine (80.6%) and azathioprine (55.9%) (p-value <0.05). This difference was not significant between hydroxychloroquine and vincristine group (63.2%) (p-value = 0.09). This study proves that hydroxychloroquine can contribute to the therapy of chronic ITP especially as an affordable and well-tolerated drug.
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Affiliation(s)
- Ghada E M Abdallah
- Department of Internal Medicine, Clinical Hematology Unit, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Esam A S Elbiih
- Department of Internal Medicine, Clinical Hematology Unit, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Douaa Sayed
- Clinical Pathology Department, South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | - Sawsan M Moeen
- Department of Internal Medicine, Clinical Hematology Unit, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Shima Gafer
- Clinical Pathology Department, South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | - Ahmad F Thabet
- Department of Internal Medicine, Clinical Hematology Unit, Faculty of Medicine, Assiut University, Assiut, Egypt
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Saad Eldien HM, Abdel-Aziz HO, Sayed D, Mubarak W, Hareedy HHG, Mansor SG, Yoshida T, Fathy M. Periostin expression and characters of human adipose tissue-derived mesenchymal stromal cells were aberrantly affected by in vitro cultivation. Stem Cell Investig 2019; 6:33. [PMID: 31620480 DOI: 10.21037/sci.2019.08.09] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 11/25/2018] [Accepted: 07/30/2019] [Indexed: 12/15/2022]
Abstract
Background Human adipose tissue-derived mesenchymal stromal cells (AD-MSCs) have been under focus in regenerative medicine since their discovery as a suitable source of MSCs. AD-MSCs are heterogeneous cells and exhibit variations in population doubling time, morphology and proliferative capacity. This study investigated if human AD-MSCs are developing, during in vitro long-term cultivation, in an unwanted or aberrant way. Methods This study monitored AD-MSCs during their in vitro culture till the tenth passage investigating proliferation kinetics, DNA index and surface markers expression. Also, periostin gene expression was examined. Results The proliferation capacity and colony forming unit were decreased after passage 6 and the population doubling time was increased. Flow cytometric analysis revealed that newly cultivated population strongly expressed MSCs markers, furthermore, reduction of CD105 expression appeared in passage 5 onwards, the later was associated with significant increase in expression of CD34 (a hematopoietic cell marker). Also, reduction of CD73 and CD90 expression was observed from passage 8. Furthermore, during the first six passages, periostin expression was significantly unchanged, with significant upregulation in late passages. Conclusions Long-term cultivation of human AD-MSCs changed their characters in an aberrant way and the first four passages might be the most appropriate passages for therapy. More investigation and understanding of these variations are needed to help in standardizing the expansion of MSCs-based therapies.
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Affiliation(s)
- Heba M Saad Eldien
- Department of Anatomy, College of Medicine, Jouf University, Jouf, Saudi Arabia.,Department of Histology and Cell Biology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | | | - Douaa Sayed
- Department of Clinical Pathology, South Egypt Cancer Institutee, Assiut University, Assiut, Egypt
| | - Wafaa Mubarak
- Department of Anatomy, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Hemmat H G Hareedy
- Department of Histology and Cell Biology, Faculty of Medicine, Assiut University, Assiut, Egypt.,Department of Basic Medical Science, Majma'ah University, Saudi Arabia
| | - Shima G Mansor
- Department of Clinical Pathology, South Egypt Cancer Institutee, Assiut University, Assiut, Egypt
| | - Toshiko Yoshida
- Department of Regenerative Medicine, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Moustafa Fathy
- Department of Regenerative Medicine, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan.,Department of Biochemistry, Faculty of Pharmacy, Minia University, Minia, Egypt
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6
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Saad Eldien H, Mostafa N, Abd ElTawab O, Hassan H, Abd Elhamid T, Abd Elhaliem N, El Shall E, Sayed D, Mohamed A, Mohamed N, Abdalla A, Abdelraheim S, Abou Khalil N, Kamal A. Effect of Hematopoietic Stem Cells and Platelet-Rich Plasma on the Healing of Experimental Skin Burned Tissues: A Comparative Study in Adult Male Mice. Egyptian Journal of Histology 2019; 42:740-754. [DOI: 10.21608/ejh.2019.8023.1083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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7
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Abo El-Maali N, Badr G, Sayed D, Adam R, Abd El Wahab G. Enhanced susceptibility to apoptosis and growth arrest of human breast carcinoma cells treated with silica nanoparticles loaded with monohydroxy flavone compounds. Biochem Cell Biol 2019; 97:513-525. [PMID: 30640511 DOI: 10.1139/bcb-2018-0133] [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] [Indexed: 11/22/2022] Open
Abstract
The treatment of drug-resistant cancer is a clinical challenge, hence screening for novel anticancer drugs is critically important. In this study, we investigated the anti-tumor potential of three plant-derived flavone compounds: 3-hydroxy flavone (3-HF), 6-hydroxy flavone (6-HF), and 7-hydroxy flavone (7-HF), either alone or combined with silica nanoparticles (3-HF + NP, 6-HF + NP, and 7-HF + NP), on the human breast carcinoma cell lines MDA-MB-231 and MCF-7, as well as on non-tumorigenic normal breast epithelial cells (MCF-10). The IC50 values of these flavone compounds loaded with NP (flavones + NP) in these cell lines were determined to be 1.5 μg/mL without affecting the viability of normal MCF-10 cells. Additionally, using annexin V - propidium iodide double-staining followed by flow cytometry analysis, we found that the combination of flavones with NP significantly induced apoptosis in MCF-7 and MDA-MB-231 cancer cells. Furthermore, flavones + NP increased the expression of cytochrome c and caspase-9, mediating the growth arrest of these cancer cells. Most importantly, the combination of flavones with NP significantly abolished the expression of ATF-3, which is responsible for the proliferation and invasion of bone-metastatic breast cancer cells. Our data revealed the potential therapeutic effects of these flavones in fighting breast cancer cells, and provide the first insights concerning the underlying molecular mechanisms.
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Affiliation(s)
- Nagwa Abo El-Maali
- Department of Chemistry, Faculty of Science, Assiut University, Assiut 71516, Egypt.,Multidisciplinary Research Centre of Excellence, Assiut University, Egypt
| | - Gamal Badr
- Laboratory of Immunology, Zoology Department, Faculty of Science, Assiut University, 71516 Assiut, Egypt
| | - Douaa Sayed
- Clinical Pathology Department, South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | - Randa Adam
- Department of Chemistry, Faculty of Science, Assiut University, Assiut 71516, Egypt
| | - Gamal Abd El Wahab
- Department of Chemistry, Faculty of Science, Assiut University, Assiut 71516, Egypt
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8
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Elmorshidy S, Abd Elffatah O, Essa H, Ibrahim A, Sayed D, Shehata S. Circulating tumor cells as a prognostic marker in non-metastatic breast cancer patients. Ann Oncol 2018; 29:viii64-viii65. [DOI: 10.1093/annonc/mdy270.197] [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: 09/02/2023] Open
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9
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Safwat MA, Soliman GM, Sayed D, Attia MA. Fluorouracil-Loaded Gold Nanoparticles for the Treatment of Skin Cancer: Development, in Vitro Characterization, and in Vivo Evaluation in a Mouse Skin Cancer Xenograft Model. Mol Pharm 2018. [PMID: 29701979 DOI: 10.1021/acs.molpharmaceut.8b00047/asset/images/medium/mp-2018-00047a_0009.gif] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
Fluorouracil (5-FU) is an antimetabolite drug used in the treatment of various malignancies, such as colon and skin cancers. However, its systemic administration results in severe side effects. Topical 5-FU delivery for the treatment of skin cancer could circumvent these shortcomings, but it is limited by the drug poor permeability through the skin. To enhance 5-FU efficacy against skin cancer and reduce its systemic side effects, it was loaded into a gold nanoparticle (GNP)-based topical delivery system. 5-FU was loaded onto GNPs capped with CTAB through ionic interactions between 5-FU and CTAB. GNPs were prepared at different 5-FU/CTAB molar ratios and evaluated using different techniques. GNP stability and drug release were studied as a function of salt concentration and solution pH. Optimum 5-FU/CTAB-GNPs were incorporated into gel and cream bases, and their ex vivo permeability was evaluated in mice dorsal skin. The in vivo anticancer efficacy of the same preparations was evaluated in A431 tumor-bearing mice. The GNPs had spherical shape and a size of ∼16-150 nm. Maximum 5-FU entrapment was achieved at 5-FU/CTAB molar ratio of 1:1 and pH 11.5. Drug release from GNPs was sustained and pH-dependent. 5-FU GNP gel and cream had around 2-fold higher permeability through mice skin compared with free 5-FU gel and cream formulations. Further, in vivo studies in a mouse model having A431 skin cancer cells implanted in the subcutaneous space showed that the GNP gel and cream achieved 6.8- and 18.4-fold lower tumor volume compared with the untreated control, respectively. These results confirm the potential of topical 5-FU/CTAB-GNPs to enhance drug efficacy against skin cancer.
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Affiliation(s)
- Mohamed A Safwat
- Department of Pharmaceutics, Faculty of Pharmacy , Assiut University , Assiut 71526 , Egypt
- Department of Pharmaceutics, Faculty of Pharmacy , South Valley University , Qena 83523 , Egypt
| | - Ghareb M Soliman
- Department of Pharmaceutics, Faculty of Pharmacy , Assiut University , Assiut 71526 , Egypt
- Department of Pharmaceutics, Faculty of Pharmacy , University of Tabuk , Tabuk , Saudi Arabia
| | - Douaa Sayed
- Department of Clinical Pathology, South Egypt Cancer Institute , Assiut University , Assiut 71526 , Egypt
| | - Mohamed A Attia
- Department of Pharmaceutics, Faculty of Pharmacy , Assiut University , Assiut 71526 , Egypt
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10
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Wang H, Wang Y, Kota KK, Sun B, Kallakury B, Mikhail NN, Sayed D, Mokhtar A, Maximous D, Yassin EH, Sun SX, Chen X, Loffredo CA, Zheng YL. Author Correction: Strong associations between chromosomal aberrations in blood lymphocytes and the risk of urothelial and squamous cell carcinoma of the bladder. Sci Rep 2018; 8:8183. [PMID: 29784993 PMCID: PMC5962601 DOI: 10.1038/s41598-018-26488-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Hongkun Wang
- Department of Biostatistics, Bioinformatics, and Biomathematics, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC, USA
| | - Ying Wang
- Cancer Prevention and Control Program, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC, USA
| | - Krishna K Kota
- Cancer Prevention and Control Program, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC, USA
| | - Bing Sun
- Cancer Prevention and Control Program, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC, USA
| | - Bhaskar Kallakury
- Department of Pathology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC, USA
| | | | - Douaa Sayed
- South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | - Ahmed Mokhtar
- South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | - Doaa Maximous
- South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | - Etemad H Yassin
- South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | - Scarlett X Sun
- Cancer Prevention and Control Program, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC, USA
| | - Xiaofei Chen
- Department of Biostatistics, Bioinformatics, and Biomathematics, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC, USA
| | - Christopher A Loffredo
- Department of Biostatistics, Bioinformatics, and Biomathematics, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC, USA.,Cancer Prevention and Control Program, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC, USA
| | - Yun-Ling Zheng
- Department of Biostatistics, Bioinformatics, and Biomathematics, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC, USA. .,Cancer Prevention and Control Program, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC, USA.
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Safwat MA, Soliman GM, Sayed D, Attia MA. Fluorouracil-Loaded Gold Nanoparticles for the Treatment of Skin Cancer: Development, in Vitro Characterization, and in Vivo Evaluation in a Mouse Skin Cancer Xenograft Model. Mol Pharm 2018; 15:2194-2205. [PMID: 29701979 DOI: 10.1021/acs.molpharmaceut.8b00047] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Fluorouracil (5-FU) is an antimetabolite drug used in the treatment of various malignancies, such as colon and skin cancers. However, its systemic administration results in severe side effects. Topical 5-FU delivery for the treatment of skin cancer could circumvent these shortcomings, but it is limited by the drug poor permeability through the skin. To enhance 5-FU efficacy against skin cancer and reduce its systemic side effects, it was loaded into a gold nanoparticle (GNP)-based topical delivery system. 5-FU was loaded onto GNPs capped with CTAB through ionic interactions between 5-FU and CTAB. GNPs were prepared at different 5-FU/CTAB molar ratios and evaluated using different techniques. GNP stability and drug release were studied as a function of salt concentration and solution pH. Optimum 5-FU/CTAB-GNPs were incorporated into gel and cream bases, and their ex vivo permeability was evaluated in mice dorsal skin. The in vivo anticancer efficacy of the same preparations was evaluated in A431 tumor-bearing mice. The GNPs had spherical shape and a size of ∼16-150 nm. Maximum 5-FU entrapment was achieved at 5-FU/CTAB molar ratio of 1:1 and pH 11.5. Drug release from GNPs was sustained and pH-dependent. 5-FU GNP gel and cream had around 2-fold higher permeability through mice skin compared with free 5-FU gel and cream formulations. Further, in vivo studies in a mouse model having A431 skin cancer cells implanted in the subcutaneous space showed that the GNP gel and cream achieved 6.8- and 18.4-fold lower tumor volume compared with the untreated control, respectively. These results confirm the potential of topical 5-FU/CTAB-GNPs to enhance drug efficacy against skin cancer.
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Affiliation(s)
- Mohamed A Safwat
- Department of Pharmaceutics, Faculty of Pharmacy , Assiut University , Assiut 71526 , Egypt.,Department of Pharmaceutics, Faculty of Pharmacy , South Valley University , Qena 83523 , Egypt
| | - Ghareb M Soliman
- Department of Pharmaceutics, Faculty of Pharmacy , Assiut University , Assiut 71526 , Egypt.,Department of Pharmaceutics, Faculty of Pharmacy , University of Tabuk , Tabuk , Saudi Arabia
| | - Douaa Sayed
- Department of Clinical Pathology, South Egypt Cancer Institute , Assiut University , Assiut 71526 , Egypt
| | - Mohamed A Attia
- Department of Pharmaceutics, Faculty of Pharmacy , Assiut University , Assiut 71526 , Egypt
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Abu El-Makarem M, El-Akad A, Elian M, Sherif T, El-Shaheed R, Abd El Fatah A, Sayed D, Bakry R, Mahmoud A. Non-neoplastic Portal Vein Thrombosis in HCV Cirrhosis Patients: Is it an Immuno-Inflammatory Disorder? Ann Hepatol 2018; 16:574-583. [PMID: 28611261 DOI: 10.5604/01.3001.0010.0296] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND AIMS Portal vein thrombosis (PVT) is a critical complication in cirrhotic patients. We explored the role of the activated factor VII-antithrombin (FVIIa-AT) complex and enhanced monocytic tissue factor (TF) expression in the development and prediction of non-neoplastic PVT in cirrhotic patients. MATERIAL AND METHODS A total of 30 HCV-cirrhosis patients were included in our study. They were compared to 35 cirrhotic patients without PVT, 15 non-cirrhotic patients with PVT, and 15 healthy controls. The plasma level of the FVIIa-AT complexes was analyzed by ELISA. MIF CD142, CD86, and HLA-DR on monocytes (CD14) were determined by flow cytometry. RESULTS Compared with cirrhotic patients without PVT, cirrhotic patients with PVT had comparable plasma values of FVIIa, AT, and the FVIIa-AT complex. However, they had significantly lower values compared to non-cirrhotic patients with PVT and healthy controls. Cirrhotic patients with PVT had increased monocytic TF expression (MIF CD142) compared to non-PVT cirrhotic patients and healthy controls [86.5 (93.5) vs. 18 (32.0) and 11.0 (6.0), respectively; p < 0.001 for each]. However, cirrhosis PVT could not be distinguished from non-cirrhosis PVT. The area under the ROC curve of MIF CD142 was 0.759 (0.641- 0.876; p = 0.000) at an optimal cut-off value of 45, which yielded a sensitivity of 60% and a specificity of 77.1%, as well as a PPV and NPV of 69.2% for each. CONCLUSION Enhanced expression of monocytic TF may have a role in the development and prediction of non-neoplastic PVT in HCV-cirrhosis patients. Large multicenter studies are necessary to validate our results.
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Affiliation(s)
- Mona Abu El-Makarem
- Department of Internal Medicine, School of Medicine, Minia University, Minia, Egypt
| | - Atef El-Akad
- Department of Internal Medicine, School of Medicine, Minia University, Minia, Egypt
| | - Moustafa Elian
- Department of Radio-Diagnosis, School of Medicine, Minia University, Minia, Egypt
| | - Tahra Sherif
- Department of Clinical Pathology, School of Medicine, Assuit University, Assuit, Egypt
| | - Ragaa El-Shaheed
- Department of Internal Medicine, School of Medicine, Minia University, Minia, Egypt
| | - Aliaa Abd El Fatah
- Department of Internal Medicine, School of Medicine, Minia University, Minia, Egypt
| | - Douaa Sayed
- Department of Clinical Pathology, South Egypt Cancer Institute, Assuit University, Assuit, Egypt
| | - Rania Bakry
- Department of Clinical Pathology, South Egypt Cancer Institute, Assuit University, Assuit, Egypt
| | - Aisha Mahmoud
- Department of Internal Medicine, School of Medicine, Minia University, Minia, Egypt
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13
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Safwat MA, Soliman GM, Sayed D, Attia MA. Gold nanoparticles capped with benzalkonium chloride and poly (ethylene imine) for enhanced loading and skin permeability of 5-fluorouracil. Drug Dev Ind Pharm 2017; 43:1780-1791. [PMID: 28581826 DOI: 10.1080/03639045.2017.1339082] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE To enhance 5-fluorouracil (5-FU) permeability through the skin by loading onto gold nanoparticles (GNPs) capped with two cationic ligands, benzalkonium chloride (BC) or poly (ethylene imine) (PEI). Whereas 5-FU has excellent efficacy against many cancers, its poor permeability through biological membranes and several adverse effects limit its clinical benefits. BC and PEI were selected to stabilize GNPs and to load 5-FU through ionic interactions. METHODS 5-FU/BC-GNPs and 5-FU/PEI-GNPs were prepared at different 5-FU/ligand molar ratios and different pH values and were evaluated using different techniques. GNPs stability was tested as a function of salt concentration and storage time. 5-FU release from BC- and PEI-GNPs was evaluated as a function of solution pH. Ex vivo permeability studies of different 5-FU preparations were carried out using mice skin. RESULTS 5-FU-loaded GNPs size and surface charge were dependent on the 5-FU/ligand molar ratios. 5-FU entrapment efficiency and loading capacity were dependent on the used ligand, 5-FU/ligand molar ratio and solution pH. Maximum drug entrapment efficiency of 59.0 ± 1.7% and 46.0 ± 1.1% were obtained for 5-FU/BC-GNPs and 5-FU/PEI-GNPs, respectively. 5-FU-loaded GNPs had good stability against salinity and after storage for 4 months at room temperature and at 4 °C. In vitro 5-FU release was pH- and ligand-dependent where slower release was observed at higher pH and for 5-FU/BC-GNPs. 5-FU permeability through mice skin was significantly higher for drug-loaded GNPs compared with drug-ligand complex or drug aqueous solution. CONCLUSION Based on these results, BC- and PEI-GNPs might find applications as effective topical delivery systems of 5-FU.
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Affiliation(s)
- Mohamed A Safwat
- a Department of Pharmaceutics, Faculty of Pharmacy , Assiut University , Assiut , Egypt.,b Department of Pharmaceutics and Industrial Pharmacy , Deraya University , El-Minia , Egypt
| | - Ghareb M Soliman
- a Department of Pharmaceutics, Faculty of Pharmacy , Assiut University , Assiut , Egypt.,c Department of Pharmaceutics, Faculty of Pharmacy , University of Tabuk , Tabuk , Saudi Arabia
| | - Douaa Sayed
- d Department of Clinical Pathology, South Egypt Cancer Institute , Assiut University , Assiut , Egypt
| | - Mohamed A Attia
- a Department of Pharmaceutics, Faculty of Pharmacy , Assiut University , Assiut , Egypt
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Elkady A, Iijima S, Aboulfotuh S, Mostafa Ali E, Sayed D, Abdel-Aziz NM, Ali AM, Murakami S, Isogawa M, Tanaka Y. Characteristics of escape mutations from occult hepatitis B virus infected patients with hematological malignancies in South Egypt. World J Hepatol 2017; 9:477-486. [PMID: 28396718 PMCID: PMC5368625 DOI: 10.4254/wjh.v9.i9.477] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 08/02/2016] [Accepted: 12/14/2016] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate the prevalence and virological characteristics of occult hepatitis B virus (HBV) infections in patients with hematological malignancies in South Egypt.
METHODS Serum samples were collected from 165 patients with hematological malignancies to monitor titers of HBV DNA, hepatitis B surface antigen (HBsAg), and antibodies to HBV core (anti-HBc) and surface antigens. Serum samples negative for HBsAg and positive for anti-HBc were subjected to nucleic acid extraction and HBV DNA detection by real-time polymerase chain reaction. DNA sequences spanning the S region were analyzed in cases with occult HBV infection. In vitro comparative study of constructed 1.24-fold wild type and S protein mutant HBV genotype D clones was further performed.
RESULTS HBV DNA was detected in 23 (42.6%) of 54 patients with hematological malignancies who were HBsAg negative, but anti-HBc positive, suggesting the presence of occult HBV infection. The complete HBV genome was retrieved from 6 occult HBV patients, and P120T and S143L were detected in 3 and 2 cases, respectively. Site directed mutagenesis was done to produce 1.24-fold genotype D clones with amino acid mutations T120 and L143. The in vitro analyses revealed that a lower level of extracellular HBsAg was detected by chemiluminescence enzyme immunoassay (CLEIA) with the clone containing T120 mutation, compared with the wild type or the clone with S143L mutation despite the similar levels of extracellular and intracellular HBsAg detected by Western blot. Southern blot experiments showed that the levels of intracellular HBV DNA were not different between these clones.
CONCLUSION Occult HBV infection is common in patients with hematological malignancies and associated with P120T and S143L mutations. 120T mutation impairs the detection of HBsAg by CLEIA.
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Jennings J, Robinson C, Wallace A, Howard C, Brower J, Sayed D, Tran N, Vrionis F, Lekht I, Chang E, Bagla S, Papadouris D, Vadlamudi V, Meyer J, Timmerman R, Barr J, Chason D, Sichlau M, Sewall L, So G, Baek D, Tutton S, Lea W, Morris J, Callstrom M. Prospective, multicenter evaluation of targeted radiofrequency ablation (t-RFA) and vertebral augmentation (VA) prior to or following radiation therapy (RT) to treat painful metastatic vertebral body tumors (STARRT Study): Interim analysis. J Vasc Interv Radiol 2017. [DOI: 10.1016/j.jvir.2016.12.644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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16
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Safwat MA, Soliman GM, Sayed D, Attia MA. Gold nanoparticles enhance 5-fluorouracil anticancer efficacy against colorectal cancer cells. Int J Pharm 2016; 513:648-658. [PMID: 27693737 DOI: 10.1016/j.ijpharm.2016.09.076] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 09/23/2016] [Accepted: 09/28/2016] [Indexed: 01/06/2023]
Abstract
5-Fluorouracil (5-FU), an antimetabolite drug, is extensively used in the treatment solid tumors. However, its severe side effects limit its clinical benefits. To enhance 5-FU anticancer efficacy and reduce its side effects it was loaded onto gold nanoparticles (GNPs) using two thiol containing ligands, thioglycolic acid (TGA) and glutathione (GSH). The GNPs were prepared at different 5-FU/ligand molar ratios and evaluated using different techniques. Anticancer efficacy of 5-FU/GSH-GNPs was studied using flow cytometry in cancerous tissue obtained from patients having colorectal cancer. The GNPs were spherical in shape and had a size of ∼9-17nm. Stability of the GNPs and drug release were studied as a function of salt concentration and solution pH. Maximum 5-FU loading was achieved at 5-FU/ligand molar ratio of 1:1 and 2:1 for TGA-GNPs and GSH-GNPs, respectively. GNPs coating with pluronic F127 improved their stability against salinity. 5-FU release from GNPs was slow and pH-dependent. 5-FU/GSH-GNPs induced apoptosis and stopped the cell cycle progression in colorectal cancer cells. They also had a 2-fold higher anticancer effect compared with free 5-FU. These results confirm the potential of GNPs to enhance 5-FU anticancer efficacy.
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Affiliation(s)
- Mohamed A Safwat
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt; Department of Pharmaceutics and Industrial Pharmacy, Deraya University, El-Minia, Egypt
| | - Ghareb M Soliman
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt.
| | - Douaa Sayed
- Department of Clinical Pathology, South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | - Mohamed A Attia
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
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17
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Shaltout AS, Sayed D, Badary MS, Nafee AM, El Zohri MH, Bakry R, Ahmed SH. Effect of IL6 and IL23 on double negative T cells and anti ds-DNA in systemic lupus erythematosus patients. Hum Immunol 2016; 77:937-943. [PMID: 27343994 DOI: 10.1016/j.humimm.2016.06.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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: 05/06/2015] [Revised: 05/27/2016] [Accepted: 06/07/2016] [Indexed: 12/17/2022]
Abstract
Several evidences suggest that DN T cells, IL23 and IL6 play a role in the pathogenesis of SLE. This study aimed to evaluate the frequency of DN T cells in SLE patients and the relation to their activity also to assess the possible role of IL6 and IL23 on DN T cells. Thirty patients with SLE and sixteen healthy blood donor females were enrolled. There was a significant increase in DN T cells in patients than controls (P=0.001). These cells had a significant positive correlation with SLEDAI (r=0.486, P=0.006). DN T cells from SLE patient samples were expanded when stimulated in vitro with RhIL6 or RhIL23 in patients than controls. Furthermore, anti ds-DNA level was found to be increased in supernatant of PBMCs when stimulated by these cytokines in different concentrations. Our findings suggest that IL6 and IL23 may play role in SLE pathogenesis through their effect on DN T cells and anti ds-DNA.
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Affiliation(s)
- Asmaa S Shaltout
- Medical Microbiology & Immunology, Faculty of Medicine Assiut University, Assiut, Egypt
| | - Douaa Sayed
- Department of Clinical Pathology, South Egypt Cancer Institute, Assiut University, Egypt.
| | - Mohamed S Badary
- Medical Microbiology & Immunology, Faculty of Medicine Assiut University, Assiut, Egypt
| | - Amany M Nafee
- Medical Microbiology & Immunology, Faculty of Medicine Assiut University, Assiut, Egypt
| | - Mona H El Zohri
- Internal Medicine, Rheumatology Unit, Assiut University, Assiut, Egypt
| | - Rania Bakry
- Department of Clinical Pathology, South Egypt Cancer Institute, Assiut University, Egypt
| | - Shabaan H Ahmed
- Medical Microbiology & Immunology, Faculty of Medicine Assiut University, Assiut, Egypt
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Makhlouf NA, Farghaly AM, Zaky S, Rashed HAG, Abu Faddan NH, Sayed D, El-Badawy O, Afifi N, Hamza WS, El-Sayed Y. The efficacy of hepatitis B vaccination program in upper Egypt: Flow cytometry and the evaluation of long term immunogenicity. J Med Virol 2016; 88:1567-75. [PMID: 26910304 DOI: 10.1002/jmv.24506] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/14/2016] [Indexed: 11/11/2022]
Abstract
Anti-HBs levels wanes with time. Many studies discussed the B cell response to HBV vaccine. However, the data about memory T cell response are limited. To evaluate the efficacy of hepatitis B vaccine via evaluating anti-HBs levels and HBsAg specific memory T-lymphocytes through descriptive study. The study was conducted in a tertiary care setting. This study included 440 vaccinated persons during infancy. Group I: 6 to less than 10 years old; Group II: 10 to less than 14 years old; Group III: 14 to less than 17 years old; Group IV: 17 years old. The serum samples were screened for HBV markers. Cytokines secretion by HBsAg-specific memory CD45RO(+) CD4(+) T cells was measured after in vitro culture using flow cytometry. The mean titer of anti-HBs was higher in group I in comparison to others (P-value = 0.000 for each). IFN-γ and IL-4 secreted by memory CD4(+) T cells were positive in all with anti-HBs >100 mIU/ml, while positive in 87% and 75% of participants with anti-HBs <10 mIU/ml and positive in 73% and 32% of participants with absent anti-HBs. The percentage of cells secreting IFN-γ and those secreting IL-4 were higher among participants with serum anti-HBs >100 mIU/ml than those having <10 mIU/ml or absent (P < 0.001 for each). Anti-HBs positivity decreased with time since childhood vaccination. Breakthrough infections are rare in vaccinated persons. Hepatitis-B vaccine is efficient in controlling HBV infection. Flow cytometry is a useful tool to assess the long term persistence of T cell memory after childhood vaccination. J. Med. Virol. 88:1567-1575, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Nahed A Makhlouf
- Department of Tropical Medicine and Gastroenterology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Ahlam M Farghaly
- Department of Tropical Medicine and Gastroenterology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Saad Zaky
- Department of Tropical Medicine and Gastroenterology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Hebat-Alla G Rashed
- Department of Clinical Pathology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Nagla H Abu Faddan
- Department of Pediatrics, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Douaa Sayed
- Flow Cytometry Laboratory, Department of Clinical Pathology, South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | - Omnia El-Badawy
- Department of Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Noha Afifi
- Department of Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Wafaa S Hamza
- Department of Public Health and Community Medicine, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Yousseria El-Sayed
- Department of Pediatric Nursing, Faculty of Nursing, Sohag University, Egypt
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Wang H, Wang Y, Kota KK, Kallakury B, Mikhail NN, Sayed D, Mokhtar A, Maximous D, Yassin EH, Gouda I, Sobitan A, Sun B, Loffredo CA, Zheng YL. Strong association between long and heterogeneous telomere length in blood lymphocytes and bladder cancer risk in Egyptian. Carcinogenesis 2015; 36:1284-90. [PMID: 26342126 DOI: 10.1093/carcin/bgv121] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 08/14/2015] [Indexed: 01/09/2023] Open
Abstract
Although it is widely recognized that telomere dysfunction plays an important role in cancer, the relationship between telomere function and bladder cancer risk is not well defined. In a case-control study of bladder cancer in Egypt, we examined relationships between two telomere features and bladder cancer risk. Telomere fluorescent in situ hybridization was used to measure telomere features using short-term cultured blood lymphocytes. Logistic regression was used to estimate the strength of association between telomere features and the risk of urothelial carcinoma of the bladder. High telomere length variation (TLV) across all chromosomal ends was significantly associated with an increased risk of bladder cancer [adjusted odds ratios (OR) = 2.22, 95% confidence interval (CI) = 1.48-3.35], as was long average telomere length (OR = 3.19, 95% CI = 2.07, 4.91). Further, TLV and average telomere length jointly affected bladder cancer risk: when comparing individuals with long telomere length and high TLV to those with short telomere length and low TLV, the adjusted OR was 14.68 (95% CI: 6.74-31.98). These associations were stronger among individuals who are 60 years of age or younger. In summary, long and heterogeneous telomere length in blood lymphocytes was strongly associated with an increased bladder cancer risk in Egyptian and the association was modulated by age.
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Affiliation(s)
- Hongkun Wang
- Department of Biostatistics, Bioinformatics, and Biomathematics
| | - Ying Wang
- Cancer Prevention and Control Program
| | | | - Bhaskar Kallakury
- Department of Pathology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, 3970 Reservoir Road, NW, Research Building, Room W201, Washington DC 20057, USA
| | - Nabiel N Mikhail
- South Egypt Cancer Institute, Assiut University, Assiut 71515, Egypt and
| | - Douaa Sayed
- South Egypt Cancer Institute, Assiut University, Assiut 71515, Egypt and
| | - Ahmed Mokhtar
- South Egypt Cancer Institute, Assiut University, Assiut 71515, Egypt and
| | - Doaa Maximous
- South Egypt Cancer Institute, Assiut University, Assiut 71515, Egypt and
| | - Etemad H Yassin
- South Egypt Cancer Institute, Assiut University, Assiut 71515, Egypt and
| | - Iman Gouda
- National Cancer Institute, Cairo 11796, Egypt
| | | | - Bing Sun
- Cancer Prevention and Control Program
| | - Christopher A Loffredo
- Department of Biostatistics, Bioinformatics, and Biomathematics, Cancer Prevention and Control Program
| | - Yun-Ling Zheng
- Department of Biostatistics, Bioinformatics, and Biomathematics, Cancer Prevention and Control Program,
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Bagla S, Sayed D, Brower J, Rutledge J, Dick B, Carlisle J, Lekht I, Georgy B. Multicenter prospective clinical series evaluating targeted-radiofrequency ablation (t-RFA) in the treatment of painful spine metastases. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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21
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Badr G, Sayed D, Maximous D, Mohamed AO, Gul M. Increased susceptibility to apoptosis and growth arrest of human breast cancer cells treated by a snake venom-loaded silica nanoparticles. Cell Physiol Biochem 2014; 34:1640-51. [PMID: 25401286 DOI: 10.1159/000366366] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/16/2014] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND The development of effective treatments against metastatic cancers, including breast cancer, is among the most important challenges in current experimental and clinical cancer research. We recently demonstrated that Walterinnesia aegyptia venom (WEV), either alone or in combination with silica nanoparticles (WEV+NP), resulted in the growth arrest and apoptosis of different cancer cell lines. AIMS In the present study, we evaluated the impact of WEV alone and WEV+NP on human breast cancer cells isolated from cancer biopsies. METHODS The potential effects of WEV alone and WEV+NP on the proliferation, induction of apoptosis and generation of free radicals in breast cancer cells isolated from 80 patients clinically diagnosed with breast cancer were evaluated by flow cytometry and ELISA. RESULTS WEV alone and WEV+NP inhibited the proliferation, altered the cell cycle and enhanced the induction of apoptosis of the breast cancer cells by increasing the activities of caspase-3, caspase-8 and caspase-9. In addition, the combination of WEV and NP robustly sensitized the breast cancer cells to growth arrest and apoptosis by increasing the generation of free radicals, including reactive oxygen species (ROS), hydroperoxide and nitric oxide. The combination of WEV with NP significantly enhanced the anti-tumor effect of WEV in breast cancer cells. CONCLUSION Our data indicate the therapeutic potential of the nanoparticle-sustained delivery of snake venom for the treatment of breast cancer.
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Affiliation(s)
- Gamal Badr
- Laboratory of Immunology & Molecular Biology, Zoology Department, Faculty of Science, Assiut University, Assiut, Egypt
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22
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Idriss N, Gaber M, Sayed D, Hassen H, Kishk Y. P219Plasma oxidized low density lipoprotein, CD40 and p-selectin levels: relationship to diseases with and without atrial fibrillation:. Cardiovasc Res 2014. [DOI: 10.1093/cvr/cvu082.152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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23
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Sayed D, El-Badawy OHB, Eldin EN, Bakry R, Badary MS, Abd-Alrahman ME, El-Feky MA, Thabit AG. Is Foxp3 a good marker for regulatory T cells? Egypt J Immunol 2014; 21:1-8. [PMID: 25812348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
To track the changes in the tested Treg markers especially Foxp3 following activation to determine whether data of human studies using Foxp3 in evaluation of Tregs are reliable or not. Four-colour flow cytometry analysis was carried out to calculate the percentages of Tregs before and after lymphocyte activation. Foxp3 expression by CD4(+)CD25(+)* and CD4(+)CD25(high) T cells increased after T cell activation. A moderate negative correlation was observed between the percentage of each of CD4(+)CD25(+)Foxp3(+)IL10(+) or CD4(+)CD25(high) Foxp3(+)IL10(+) T cells and the percentage of CD4(+)CD25(+) T cells "after activation" and a weak negative correlation was similarly observed between the percentage of CD4(+)CD25(-)Foxp3(+)IL10(+) T cells and the percentage of CD4(+)CD25(+) T cells "after activation". A moderate negative correlation was observed between the percentage of each of CD4(+)CD25(+)Foxp3(+)IL10(+), CD4(+)CD25(high)Foxp3(+)IL10(+) or CD4(+)CD25(-) Foxp3(+)lL10(+) T cells and the percentage of CD4(+)CD25(high) T cells "after activation". CD4(+)CD25(high) T cell subpopulation expressed a significantly higher level of intracellular Foxp3 compared with CD4(+)CD25(low) and CD4(+)CD25(-) T cells subpopulations. In conclusions, Foxp3 is a good marker of Tregs especially if panels of markers were used for their identification. CD4(+)CD25(high) Foxp3(+) T cell subpopulation mostly represents Tregs and thus should be the one targeted in Treg studies.
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El-Sokkary G, Sayed D, Fuad S, Abdel Shakor AB. Modulation of autophagy enhances the apoptotic cell death in human T lymphoma cells treated with Anthocyanin. Egyptian Academic Journal of Biological Sciences C, Physiology and Molecular Biology 2013. [DOI: 10.21608/eajbsc.2013.16098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Sayed D, Badrawy H, Gaber N, Khalaf MR. p-Stat3 and bcr/abl gene expression in chronic myeloid leukemia and their relation to imatinib therapy. Leuk Res 2013; 38:243-50. [PMID: 24374144 DOI: 10.1016/j.leukres.2013.11.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Revised: 11/15/2013] [Accepted: 11/17/2013] [Indexed: 10/26/2022]
Abstract
Flowcytometry analysis was carried out to evaluate the expression of the p-Stat3 in 50 CML patients and 20 age-matched healthy controls. p-Stat3 expression was increased in advanced stages of CML. Imatinib treatment was found to suppress the expression of p-Stat3 in bone marrow cells. The level of p-Stat3 was found to be higher in resistant cases than in responsive cases, which suggest the beneficial use of p-Stat3 as an indicator to follow the clinical course and the treatment response.
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Affiliation(s)
- Douaa Sayed
- Department of Clinical Pathology, South Egypt Cancer Institute, Assiut University, Egypt.
| | - Hosny Badrawy
- Department of Clinical Pathology, South Egypt Cancer Institute, Assiut University, Egypt
| | - Noha Gaber
- Department of Clinical Pathology, South Egypt Cancer Institute, Assiut University, Egypt
| | - Muhammed R Khalaf
- Department of Clinical Pathology, South Egypt Cancer Institute, Assiut University, Egypt
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Elkady A, Aboulfotuh S, Ali EM, Sayed D, Abdel-Aziz NM, Ali AM, Murakami S, Iijima S, Tanaka Y. Incidence and characteristics of HBV reactivation in hematological malignant patients in south Egypt. World J Gastroenterol 2013; 19:6214-6220. [PMID: 24115819 PMCID: PMC3787352 DOI: 10.3748/wjg.v19.i37.6214] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2013] [Revised: 06/28/2013] [Accepted: 08/06/2013] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate characteristics of hepatitis B virus (HBV) implicated in HBV reactivation in patients with hematological malignancies receiving immunosuppressive therapy.
METHODS: Serum samples were collected from 53 patients with hematological malignancies negative for hepatitis B surface antigen (HBsAg) before the start of and throughout the chemotherapy course. HBV reactivation was diagnosed when the HBsAg status changed from negative to positive after the initiation of chemotherapy and/or when HBV DNA was detected by real-time detection polymerase chain reaction (RTD-PCR). For detecting the serological markers of HBV infection, HBsAg as well as antibodies to the core antigen (anti-HBc) and to the surface antigen were measured in the sera by CEIA. Nucleic acids were extracted from sera, and HBV DNA sequences spanning the S gene were amplified by RTD-PCR. The extracted DNA was further subjected to PCR to amplify the complete genome as well as the specific genomic sequences bearing the enhancer II/core promoter/pre-core/core regions (nt 1628-2364). Amplicons were sequenced directly.
RESULTS: Thirty-five (66%) of the 53 HBsAg-negative patients were found to be negative serologically for anti-HBc, and the remaining 18 (34%) patients were positive for anti-HBc. Five of the 53 (9.4%) patients with hematologic malignancies experienced HBV reactivation. Genotype D1 was detected in all five patients. Four types of mutant strains were detected in the S gene product of HBV strains and were isolated from 3 patients with HBV reactivation: T/S120, L143, and I126. HBV DNA was detected in the pretreatment HBsAg-negative samples in one of the five patients with HBV reactivation. In this patient, sequences encompassing the HBV full genome obtained from sera before the start of chemotherapy and at the time of de novo HBV hepatitis were detected and it showed 100% homology. Furthermore, in the phylogenetic tree, the sequences were clustered together, thereby indicating that this patient developed reactivation from an occult HBV infection.
CONCLUSION: Past infection with HBV is a risk factor for HBV reactivation in Egypt. Mandatory anti-HBc screening prior to chemotherapy in patients with hematological malignancies is recommended.
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El Makarem MAA, Eslam M, Sayed D, Shawkat M, Idriss NK, Soliman EM, Sherif T, Abdelshaheed R, Abdelhailm H, Sahrawi MA, Elheney S. Diabetes worsening of hepatitis C cirrhosis: are alterations in monocytic tissue factor (CD 142) is the cause? Ann Hepatol 2013; 13:27-37. [PMID: 24378263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND & AIM. The mechanisms by which type 2 diabetes mellitus (T2DM) worsen liver function are not yet established. Tissue factor (TF) is a protein that participates in hemostatic, immune and inflammatory processes. To test the hypothesis that T2DM contributes to clinical outcome through changes of TF expression on monocytes and to investigate the association between antidiabetic therapies and monocytic TF expression in HCV-related cirrhotic patients with T2DM. MATERIAL AND METHODS. In HCV-related cirrhotic patients (139 diabetics and 130 non diabetics) compared with 100 matched diabetic patients and 100 Controls; the flowcytometric analysis of CD14, TF (CD142), costimulatory molecules; CD86 and HLA-DR on monocytes were determined. RESULTS. Cirrhotic patients with T2DM have increase in the expression of monocytic TF and CD86 in comparison with cirrhotic non-diabetic, diabetic and healthy control; which increase significantly with increase of the stage of the Child-Pugh score. The expression of HLA-DR is significantly lower in cirrhotic patients than controls. Albeit, there were no significant differences in the HbA1c levels between the three groups, the use of exogenous insulin were associated with significantly higher monocytic TF expression than those in sulphonylurea and insulin sensitizer group (P < 0.03 for both). CONCLUSIONS. The monocytic TF as a significant link connecting inflammatory and immunological phenomena can partially explain a lot of events in HCV- related cirrhotic patients with T2DM. The use of exogenous insulin was associated with significantly higher TF expression than sulphonylurea and insulin sensitizer. Future target therapy against TF may be beneficial for T2DM cirrhotic patients.
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Affiliation(s)
| | - Mohammed Eslam
- Department of Internal Medicine, Minia University, Minia, Egypt
| | - Douaa Sayed
- Flow Cytometry Lab, South Egypt Cancer Institute, Assuit University, Assuit, Egypt
| | - Mohamed Shawkat
- Department of Biochemistry, Assuit University, Assuit, Egypt
| | - Naglaa K Idriss
- Department of Biochemistry, Assuit University, Assuit, Egypt
| | - Elwy M Soliman
- Department of Internal Medicine, Minia University, Minia, Egypt
| | - Tahra Sherif
- Department of clinical pathology, Assuit University, Assuit, Egypt
| | | | | | | | - Sahar Elheney
- Department of Internal Medicine, Minia University, Minia, Egypt
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Badr G, Al-Sadoon MK, Rabah DM, Sayed D. Snake (Walterinnesia aegyptia) venom-loaded silica nanoparticles induce apoptosis and growth arrest in human prostate cancer cells. Apoptosis 2012; 18:300-14. [DOI: 10.1007/s10495-012-0787-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Badr G, Bashandy S, Ebaid H, Mohany M, Sayed D. Notice of disputed authorship to: Vitamin C supplementation reconstitutes polyfunctional T cells in streptozotocin-induced diabetic rats. Eur J Nutr 2012; 51:635. [DOI: 10.1007/s00394-012-0365-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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30
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Ahmed MA, Mohamed SA, Sayed D. Long-term antalgic effects of repetitive transcranial magnetic stimulation of motor cortex and serum beta-endorphin in patients with phantom pain. Neurol Res 2012; 33:953-8. [PMID: 22080997 DOI: 10.1179/1743132811y.0000000045] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVES To assess the long-term analgesic effect of repetitive transcranial stimulation (rTMS) on chronic phantom pain using high frequency stimulation and to measure the serum beta-endorphin level pre- and post-rTMS. MATERIAL AND METHODS The study included 27 patients with unilateral amputation; all patients had chronic phantom pain. The patients were classified into two groups. Seventeen patients received 10 minutes real rTMS over the hand area of motor cortex (20 Hz, 10 second trains, intensity 80% of motor threshold) every day for five consecutive days and 10 patients received sham stimulation. Pain was assessed using a visual analogue scale (VAS) and the Leeds assessment of neuropathic symptoms and signs (LANSS) scale, before and after the first, fifth sessions, one and two months after the last session. Quantitative determination of serum beta-endorphin before and after five sessions was measured. RESULTS There was no significant difference between true and sham groups in the duration of illness, VAS, LANSS scores and resting motor threshold in upper and lower limb amputation at the base line. VAS and LANS scores of the patients who received real rTMS decreased more over the course of the treatment through the different points of follow-up (after five sessions, one and two months) than those who received sham stimulation. Serum beta-endorphin was increased significantly after real stimulation with no changes in patients received shame. Serum beta-endorphin showed no significant correlation to Hamilton depression, anxiety, VAS and LANS scores in true or sham groups before or after five sessions for rTMS. CONCLUSION These results confirm that five daily sessions of rTMS over motor cortex can produce long lasting pain relief in patients with phantom pain and it might be related to an elevation of serum beta-endorphin concentration.
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Abu El Makarem MA, Abdel Hamid M, Abdel Aleem A, Ali A, Shatat M, Sayed D, Deaf A, Hamdy L, Tony EA. Prevalence of occult hepatitis B virus infection in hemodialysis patients from egypt with or without hepatitis C virus infection. Hepat Mon 2012; 12:253-8. [PMID: 22690232 PMCID: PMC3360934 DOI: 10.5812/hepatmon.665] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/28/2011] [Revised: 02/06/2011] [Accepted: 03/14/2011] [Indexed: 12/11/2022]
Abstract
BACKGROUND While prevalence of Hepatitis B virus (HBV) in patients with end-stage renal failure (ESRF) who are undergoing dialysis has decreased significantly during the past few decades, it still remains a distinct clinical problem. The immunosuppressive nature of renal disease often leads to chronicity of the HBV infection and an opportunity for nosocomial spread of the infection among dialysis patients. Egypt is among the countries with intermediate endemicity of HBsAg (range, 2%-7%). Large-scale geographic heterogeneity in HBV prevalence has been reported worldwide and HBV prevalence is especially heterogeneous in Egypt. OBJECTIVES To assess the prevalence of occult HBV infection (OBI) in hemodialysis patients with or without chronic hepatitis C (HCV) from Minia and Assuit, Upper Egypt, using HBV DNA assays. PATIENT AND METHODS Sera from 145 hemodialysis patients with negative HbsAg were investigated for HBV DNA using real-time polymerase chain reaction (RT-PCR). Only serum samples with repeatedly detectable HBV DNA were considered positive. Patients were divided into 2 groups: HCV RNA positive and HCV RNA negative, based on the results of a third generation enzyme linked immunosorbent assay (ELISA) anti-HCV test and HCV RNA PCR. RESULTS HBV DNA was detected in 6 of the 145 patients (4.1%) and HBcAb was detected in 29/145 patients (20%). There were no statistically significant differences in the age, duration of hemodialysis, biochemical parameters, serological markers of HBV, or HBV DNA between patients with and without HCV infection. CONCLUSIONS Four percent of the hemodialysis patients had OBI. There was no significant difference in the prevalence of OBI between hemodialysis patients with or without HCV co-infection.
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Affiliation(s)
- Mona A. Abu El Makarem
- Department of Internal Medicine, Medical school, Minia University, Minia, Egypt
- Corresponding author: Mona AAbu El Makarem, Internal Medicine Department, Minia University, 61111, Minia, Egypt. Tel.: +20-862366553, Fax: +20-86242813, E-mail:
| | | | - Ashraf Abdel Aleem
- Department of Internal Medicine, Medical school, Minia University, Minia, Egypt
| | - Ahmed Ali
- Department of Internal Medicine, Medical school, Minia University, Minia, Egypt
| | - Mohammed Shatat
- Department of Internal Medicine, Medical school, Minia University, Minia, Egypt
| | - Douaa Sayed
- Flow Cytometry Lab, Clinical Pathology Department, South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | - Ali Deaf
- Department of Internal Medicine, Medical school, Minia University, Minia, Egypt
| | - Lamia Hamdy
- Department of clinical pathology, Medical school, Minia University, Minia, Egypt
| | - Effat A. Tony
- Department of Internal Medicine and Nephrology, Assuit University, Asyut, Minia, Egypt
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Abu El Makarem MA, Abdel Hamid M, Abdel Aleem A, Ali A, Shatat M, Sayed D, Deaf A, Hamdy L, Tony EA. Prevalence of occult hepatitis B virus infection in hemodialysis patients from egypt with or without hepatitis C virus infection. Hepat Mon 2012. [PMID: 22690232 DOI: 10.5812/hepatmon.5805] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND While prevalence of Hepatitis B virus (HBV) in patients with end-stage renal failure (ESRF) who are undergoing dialysis has decreased significantly during the past few decades, it still remains a distinct clinical problem. The immunosuppressive nature of renal disease often leads to chronicity of the HBV infection and an opportunity for nosocomial spread of the infection among dialysis patients. Egypt is among the countries with intermediate endemicity of HBsAg (range, 2%-7%). Large-scale geographic heterogeneity in HBV prevalence has been reported worldwide and HBV prevalence is especially heterogeneous in Egypt. OBJECTIVES To assess the prevalence of occult HBV infection (OBI) in hemodialysis patients with or without chronic hepatitis C (HCV) from Minia and Assuit, Upper Egypt, using HBV DNA assays. PATIENT AND METHODS Sera from 145 hemodialysis patients with negative HbsAg were investigated for HBV DNA using real-time polymerase chain reaction (RT-PCR). Only serum samples with repeatedly detectable HBV DNA were considered positive. Patients were divided into 2 groups: HCV RNA positive and HCV RNA negative, based on the results of a third generation enzyme linked immunosorbent assay (ELISA) anti-HCV test and HCV RNA PCR. RESULTS HBV DNA was detected in 6 of the 145 patients (4.1%) and HBcAb was detected in 29/145 patients (20%). There were no statistically significant differences in the age, duration of hemodialysis, biochemical parameters, serological markers of HBV, or HBV DNA between patients with and without HCV infection. CONCLUSIONS Four percent of the hemodialysis patients had OBI. There was no significant difference in the prevalence of OBI between hemodialysis patients with or without HCV co-infection.
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El-Badawy O, Sayed D, Badary MS, Abd-Alrahman ME, El-Feky MA, Thabit AG. Relations of regulatory T cells with hepatitis markers in chronic hepatitis B virus infection. Hum Immunol 2012; 73:335-41. [PMID: 22342871 DOI: 10.1016/j.humimm.2012.01.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2011] [Revised: 01/19/2012] [Accepted: 01/24/2012] [Indexed: 12/11/2022]
Abstract
To assess regulatory T cells (Treg) in chronic hepatitis B (CHB) infected patients and to evaluate the presence of a possible relation between them and hepatitis B markers, flow cytometry analysis was carried out to calculate the percentages of Tregs, Tregs secreting IL-10 and CD4(+) T cells secreting interferon-γ (IFN-γ) and enzyme-linked immunosorbent assay was used to detect hepatitis B virus (HBV) markers in 59 patients and 32 healthy controls. CD4(+)CD25(+), CD4(+)CD25(+)Foxp3(+), CD4(+)D25(high), CD4(+)CD25(high)Foxp3(+) and CD4(+)CD25(-)Foxp3(+) T cells and Treg cells secreting IL-10 were higher in CHB patients than in healthy controls. CD4(+)CD25(+), CD4(+)CD25(-), and total CD4(+)T cells secreting IFN-γ were generally lower in CHB patients than in healthy controls. Fair correlations were observed between CD4(+)CD25(+)Foxp3(+) T cells and alanine aminotransferase (ALT) levels and between HBsAb and both CD4(+)CD25(+)Foxp3(+) and CD4(+)CD25(high)Foxp3(+) T cells. CD4(+)CD25(+) T cells were significantly higher in CHB virus infected patients positive for HBeAg than in those negative for HBeAg and a good correlation was observed between CD4(+)CD25(+) T cells and HBeAg. Fair negative correlations were observed between CD4(+)CD25(high) T cells and both HBeAb and HBcAb. These data suggest that Tregs contribute to viral persistence. It was not possible to say that Tregs were the cause of immune suppression in this group of patients.
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Affiliation(s)
- Omnia El-Badawy
- Department of Microbiology, Immunology, Assiut University, Assiut, Egypt
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Abu El Makarem MA, Abdel-Aleem A, Ali A, Saber R, Shatat M, Rahem DA, Sayed D. Diagnostic significance of plasma osteopontin in hepatitis C virus-related hepatocellular carcinoma. Ann Hepatol 2011; 10:296-305. [PMID: 21677331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIM Outcome of hepatocellular carcinoma (HCC) depends mainly on its early diagnosis. The performance of traditional biomarkers is not satisfactory. Osteopontin (OPN) is of potential importance. This study aim to assess the diagnostic value of plasma OPN compared with alpha-fetoprotein (AFP) for the diagnosis of HCV- related HCC. METHODS We recruited 113 HCC patients compared with 120 matched cirrhotic patients and 120 Controls. The plasma level of OPN and serum AFP for all participants were assessed. RESULTS The median plasma OPN level was significantly higher in the HCC group than in the cirrhotic patient group or in the normal control group (p-value < 0.001), while OPN levels were not differed significantly in correlation with the degree of liver function deterioration in terms of advanced Child-Pugh class (p-value < 0.9). The diagnostic efficacy of OPN were superior to AFP in terms of AUC, sensitivity, specificity, PPV and NPV either in diagnosis of early or late stages of HCC (0.88 vs. 0.56; P = 0.0001, 0.991vs. 0.899; p = 0.01; respectively). CONCLUSION Plasma OPN level is a potential diagnostic marker for HCC, especially among high-risk group of patients. These values extend beyond the traditional tumor biomarkers as AFP, as it possesses good prognostic value.
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Hamed EA, Faddan NHA, Elhafeez HAA, Sayed D. Parathormone--25(OH)-vitamin D axis and bone status in children and adolescents with type 1 diabetes mellitus. Pediatr Diabetes 2011; 12:536-46. [PMID: 21426456 DOI: 10.1111/j.1399-5448.2010.00739.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Skeletal involvement in patients with type 1 diabetes mellitus (T1DM) has complex pathogenesis and despite numerous researches on this problem, many questions remain unanswered. OBJECTIVE This study aimed to assess bone status by measurement parathormone (PTH), 25-hydroxy vitamin D [25(OH)D] serum levels in children and adolescents with T1DM and its relation to insulin-like growth factor-1 (IGF-1), disease duration, puberty stage, and metabolic control. PATIENTS AND METHODS This study included 36 children and adolescents with T1DM and 15 apparently healthy controls. Serum levels of 25(OH)D, PTH, IGF-1 measured using enzyme-linked immunosorbent assay (ELISA), while glycosylated hemoglobin (HbA1c), calcium (Ca), inorganic phosphorus (PO(4) ) using autoanalyzer. Bone quality assessed using dual energy X-ray absorptiometry (DEXA). RESULTS Diabetic patients showed significant increase in PO(4) and PTH levels, while significant decrease in Ca, IGF-1, and 25(OH)D serum levels. As much as 52.8% of patients showed reduced 25(OH)D, and 30.65% showed elevated PTH serum levels. In diabetic patients, abnormal bone status (osteopenia-osteoporosis) found mostly in total body (94.40%) then lumber-spine (88.90%), ribs (88.90%), pelvis (86.10%), thoracic-spine (80.60%), arms (80.60%) and legs (77.80%), while head bones showed no abnormalities. Long diabetic duration had negative; meanwhile PTH, onset age, and puberty age had positive impact on bone status. CONCLUSIONS Children and adolescent with T1DM have abnormal bone status mostly in axial skeleton which may be contributed to impairment of formation of 25(OH)D and IGF-1. Physical activity, calcium and vitamin D supplement seem important in T1DM. Elevated serum PTH level in diabetic patients is not uncommon and its positive correlation with bone status needs further investigations.
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Affiliation(s)
- Enas A Hamed
- Department of Physiology, Faculty of Medicine, Assiut University, Assiut, P.O. Box 71526, Egypt.
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Badr G, Sayed D, Alhazza IM, Elsayh KI, Ahmed EA, Alwasel SH. T lymphocytes from malnourished infants are short-lived and dysfunctional cells. Immunobiology 2011; 216:309-15. [DOI: 10.1016/j.imbio.2010.07.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2010] [Revised: 07/06/2010] [Accepted: 07/09/2010] [Indexed: 11/24/2022]
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Badr G, Bashandy S, Ebaid H, Mohany M, Sayed D. Vitamin C supplementation reconstitutes polyfunctional T cells in streptozotocin-induced diabetic rats. Eur J Nutr 2011; 51:623-33. [PMID: 21350934 DOI: 10.1007/s00394-011-0176-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2010] [Accepted: 01/17/2011] [Indexed: 02/08/2023]
Abstract
BACKGROUND Studies have demonstrated that vitamin C supplementation enhances the immune system, prevents DNA damage, and decreases the risk of a wide range of diseases. Other study reported that leukocyte vitamin C level was low in diabetic individuals compared with nondiabetic controls. AIM OF THE WORK To study the effect of vitamin C on oxidative stress, blood lipid profile, and T-cell responsiveness during streptozotocin (STZ)-induced type I diabetes mellitus. METHODS Thirty male Sprague-Dawley rats were randomly split into three groups. The first served as a control group (n = 10) in which rats were injected with the vehicle alone. The second (n = 10) and the third groups (n = 10) were rendered diabetic by intraperitoneal (i.p.) injection of single doses of STZ (60 mg/kg body weight). The third group was supplemented with vitamin C (100 mg/kg body weight) for 2 months. RESULTS T lymphocytes from the diabetic rats were found to be in a stunned state, with a decreased surface expression of the CD28 costimulatory molecule, low levels of phosphorylated AKT, altered actin polymerization, diminished proliferation and cytokine production, and, eventually, a marked decrease in abundance in the periphery. Vitamin C was found to significantly decrease the elevated levels of blood hydroperoxide, glucose, cholesterol, triglycerides and low-density lipoprotein (LDL) in diabetic rats. Furthermore, it was found to restore CD28 expression, AKT phosphorylation, actin polymerization, and polyfunctional T cells (IFN-γ- and IL-2-producing cells that exhibit a high proliferation capacity). CONCLUSION Vitamin C treatment restores and reconstitutes polyfunctional, long-lived T cells in diabetic rats.
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Affiliation(s)
- Gamal Badr
- Zoology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia.
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Sayed D, Abd Elwanis ME, Abd Elhameed SY, Galal H. Does occupational exposure to low-dose ionizing radiation affect bone marrow thrombopoiesis? Int Arch Med 2011; 4:8. [PMID: 21345203 PMCID: PMC3056786 DOI: 10.1186/1755-7682-4-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2010] [Accepted: 02/23/2011] [Indexed: 11/30/2022] Open
Abstract
Background The biological effects of high levels of radiation exposure are fairly well known, but the effects of low levels of radiation are more difficult to determine because the deterministic effects do not occur at these levels. Methods In order to assess the risk of this exposure on BM thrombopoiesis, we measured reticulated platelets (RP) by flow cytometry in 14 hospital workers (12 technicians and 2 nurses) exposed to low level ionizing radiation in Radiotherapy Department in South Egypt Cancer Institute. Results There are significant difference in the percentage of RP in the peripheral circulation of the workers (p = .008) and no significant difference in the proportion of other blood elements in the peripheral circulation. Conclusions We think that measuring RP by flow cytometry is a rapid, non-invasive method to asses an early affection of thrombopoiesis. This type of monitoring may be used as an indicator to detect early BM affection and to demand more controls in radiation protection.
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Affiliation(s)
- Douaa Sayed
- Flow Cytometry Lab,, Department of Clinical pathology, South Egypt Cancer Institute, Assiut University, Assiut, Egypt.
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Abstract
The increased susceptibility to infection, malignancies, and autoimmune disease, suggest that immunodeficiency is an integral part of Down's syndrome (DS). Little is known about the mitochondrial damage and tendency to apoptosis in peripheral T lymphocyte cells in DS. We studied 30 children with DS and 30 normal children, 15 of each group having no evidence of acute infection and 15 with acute infection. Potential apoptosis and membrane mitochondrial potential (MMP) were measured by flow cytometry. T lymphocytes in peripheral blood from DS patients do not display an increased tendency to undergo apoptosis, although a significant loss of MMP was found.
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Sayed D, Bakry R, El-Sharkawy N, Zahran A, Khalaf MR. Flow cytometric platelet cross-matching to predict platelet transfusion in acute leukemia. J Clin Apher 2010; 26:23-8. [DOI: 10.1002/jca.20273] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2009] [Accepted: 09/29/2010] [Indexed: 11/12/2022]
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Abu Faddan NH, Hamed E, Sayed D, Abd Elhafeez HA. 717 Bone Status in Children and Adolescents with Type 1 Diabetes Mellitus: Current Concept. Pediatr Res 2010; 68:364-364. [DOI: 10.1203/00006450-201011001-00717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Sayed D, Amin NF, Galal GM. Monocyte-platelet aggregates and platelet micro-particles in patients with post-hepatitic liver cirrhosis. Thromb Res 2010; 125:e228-33. [PMID: 20053423 DOI: 10.1016/j.thromres.2009.12.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2009] [Revised: 10/20/2009] [Accepted: 12/01/2009] [Indexed: 01/08/2023]
Abstract
INTRODUCTION Monocytes are the cells that play a crucial role in the pathogenesis of liver damage and liver cirrhosis (LC), and as platelets, by connecting hemostasis and inflammatory processes, participate in pathogenesis of chronic liver diseases, we aimed to investigate the presence of monocyte-platelet aggregates and platelet micro-particles (PMPs) and their role in LC. PATIENTS AND METHODS The study included 60 patients with post-hepatitic LC and 20 healthy controls. Activated monocytes (CD11b, HLA-DR, CD14, CD16), monocyte-platelet aggregates (CD41/CD14), activated platelets (CD41/CD62) and PMPs were analyzed by flow cytometry. Their relations to the clinical and laboratory data were assessed in the studied group. RESULTS Patients with LC had higher levels of activated platelets, activated monocytes and monocyte-platelet aggregations as compared to healthy controls. PMPs percentage showed no significant differences between patients and controls but significantly increased in both patients with no bleeding and patients with splenomegaly compared to patients without. All studied markers showed no significant differences between patients with thrombocytopenia and those with normal platelet counts and also between patients with different disease stages. Positive correlations between monocyte-platelet aggregates and both activated platelets and monocytes were demonstrated. There were significant negative correlations between PMPs and both age and prothrombin time among patients. CONCLUSIONS The stage of post-hepatitic LC is not the only factor that affects the level of activated platelets, activated monocytes and monocyte-platelet aggregates. PMPs have no influence on thrombocytopenia but may have the potential to influence the progression of clotting activity in LC.
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Affiliation(s)
- Douaa Sayed
- Clinical Pathology Department, Flow Cytometry Lab, South Egypt Cancer Institute, Assiut University, Egypt.
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Sayed D, Badr G, Maximous D, Mikhail NNH, Abu-Tarboush F, Alhazza IM. HLA-G and its relation to proliferation index in detection and monitoring breast cancer patients. ACTA ACUST UNITED AC 2010; 75:40-7. [DOI: 10.1111/j.1399-0039.2009.01393.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Elkady A, Tanaka Y, Kurbanov F, Sugauchi F, Sugiyama M, Khan A, Sayed D, Moustafa G, Abdel-Hameed AR, Mizokami M. Genetic variability of hepatitis C virus in South Egypt and its possible clinical implication. J Med Virol 2009; 81:1015-23. [PMID: 19382263 DOI: 10.1002/jmv.21492] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Egypt is one of the countries with very high rates of hepatitis C virus (HCV) related morbidity and mortality. However, little is known about geographical and clinical differences in genetic variability of HCV in Egypt. Using direct sequencing and phylogenetic analysis of partial core/E1 and NS5B regions of the HCV genome, HCV genotype/subtype was determined in 129 HCV-infected patients residing in three governates in south Egypt: Assuit, Sohag, and Qena. According to clinical stage of infection, patients were categorized into four groups: asymptomatic carriers, n = 16; chronic hepatitis C patients, n = 36; liver cirrhosis, n = 54; and hepatocellular carcinoma (HCC), n = 23. Genotype 4a was detected in 80.6%, whereas 1g, 4l, 4n, 4o, 4f, and 4m were identified in 7.7%, 4.7%, 3.9%, 1.6%, 0.8%, and 0.8% of cases, respectively. The prevalence of 4a differed regionally; from 88.5% (in Sohag) to 64% (in Assuit, P = 0.002). Genotypes 4l and 4n had a higher prevalence in Assuit (12.8%, 10.3%) than Sohag (0%, 0%; P < or = 0.011). Difference in clinical features of determined genotypes/subtypes was observed; more carriers of non-4a variants (4l and 4n, 4f, or 4m) had chronic hepatitis compared to carriers of 4a (53.3% vs. 23.1%, P = 0.025), while more patients with 4a had liver cirrhosis (45.2% vs. 13.3%, P = 0.023). Two HCV-4o strains were isolated in this study, both from patients with HCC. In conclusion, geographical diversity of HCV was revealed in this study in southern Egypt. A further case-control study is required to confirm the trends of differential pathogenicity of HCV subtypes, indicated by this study.
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Affiliation(s)
- Abeer Elkady
- Department of Clinical Molecular Informative Medicine, Nagoya City University Graduate School of Medical Sciences, Kawasumi, Mizuho, Nagoya, Japan
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Sayed D, El-Attar M, Mohamed-Hussein A, Ibrahim M. 74P EVALUATION OF FLOW CYTOMETRIC IMMUNOPHENOTYPING AND DNA ANALYSIS FOR DETECTION OF MALIGNANT CELLS IN SEROSAL CAVITY FLUIDS. Lung Cancer 2009. [DOI: 10.1016/s0169-5002(09)70197-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Sayed D, Badrawy H, Ali AM, Shaker S. Immunophenotyping and immunoglobulin heavy chain gene rearrangement analysis in cerebrospinal fluid of pediatric patients with acute lymphoblastic leukemia. Leuk Res 2008; 33:655-61. [PMID: 18996593 DOI: 10.1016/j.leukres.2008.09.033] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2008] [Revised: 09/29/2008] [Accepted: 09/30/2008] [Indexed: 10/21/2022]
Abstract
The study aimed to assess the diagnostic accuracy of Flow cytometry (FCM) immunophenotyping and IgH gene rearrangements (IGHRs) by real-time PCR in comparison with classic cytology for diagnosing CNS infiltration in pediatric ALL. We concluded that the diagnostic value of FCM and IGHR are two to three times more than that of cytology. Therefore, immunophenotyping by FCM is recommended for routine diagnosis of CSF infiltration. Furthermore, IGHR analysis by real-time PCR appears to be a useful addition in evaluation of CNS infiltration.
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Affiliation(s)
- Douaa Sayed
- Clinical Pathology Department, South Egypt Cancer Institute, Assiut University, Assiut, Egypt.
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Badr G, Sayed D. Human melanoma cells release soluble and functional receptors. Egypt J Immunol 2006; 13:23-31. [PMID: 18689268] [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: 05/26/2023]
Abstract
Cytokines play important roles in the growth and growth arrest of cancer cells. IL-13 via an IL-4R alpha/IL-13R alpha 1 heterocomplex receptor inhibits the growth of renal cell carcinoma cells (RCC). However, it does not inhibit the growth of glioblastoma cells that express the IL-13R alpha 2 chain. In the present studies we investigated whether melanoma cells express IL-13R alpha 1 and IL-13R alpha 2 chains as well as whether they respond to IL-13. Membrane IL13R alpha 2 was co-expressed with IL-4R alpha and IL-13R alpha 1 chains in three of six tested melanoma cell lines. Furthermore, the IL-13R alpha 2 positive cell lines, release a soluble form of IL-13R alpha 2, specifically under IL-13 but not IL-4 stimulation. The release of soluble IL-13R alpha 2 was inhibited by various metalloproteinase inhibitors and EDTA inhibits the biological response to IL-13.
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Affiliation(s)
- G Badr
- Zoology Department, Faculty of Science, Assiut University, Assiut, Egypt
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Kamel AM, El-Sharkawy N, Mahmoud HK, Khalaf MR, El Haddad A, Fahmy O, El Fattah RA, Sayed D. Impact of CD34 subsets on engraftment kinetics in allogeneic peripheral blood stem cell transplantation. Bone Marrow Transplant 2004; 35:129-36. [PMID: 15568034 DOI: 10.1038/sj.bmt.1704755] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [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: 11/09/2022]
Abstract
Our objective was to evaluate, probably for the first time, the impact of CD34 subsets on engraftment kinetics in allogeneic PBSC transplantation (PBSCT). PBSC graft components were analyzed in 62 cases for the absolute count/kg of total CD34+ and the following subsets: DR- and +, CD71+/-, CD38+/-, CD33+/- and CD61+/-. Time to ANC >0.5 and >1 x 10(9)/l and platelets >20 and >50 x 10(9)/l was reported. The median value for each parameter was used to discriminate rapid from slow engraftment. Four parameters showed significant predictive power of early neutrophil engraftment, namely CD34+ /DR- (P = 0.002), CD34+/38- (P = 0.02), CD34+/CD61- (P = 0.04) and total CD34+ cell dose (P = 0.04). Four parameters showed significant predictive power of early platelet engraftment, namely CD34+/CD61+ (P = 0.02), CD34+ /CD38- and total CD34+ cell dose (P = 0.04) and CD34+ /CD71- (P = 0.05). Comparing patients who received > to those who received < the threshold dose(s), only CD34+ /CD38- lost its significance for neutrophil engraftment; and only CD34+ /CD61+ retained its significance for platelet engraftment (P = 0.03); furthermore, the former group required significantly fewer platelet transfusions (P = 0.018). We concluded that in allogeneic PBSCT, the best predictor of early neutrophil engraftment is the absolute CD34+ /DR- and for early platelet engraftment is the absolute CD34+ /CD61+ cell dose.
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Affiliation(s)
- A M Kamel
- NCI, Cairo University, Fom El-Khalig, Cairo, Egypt.
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