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Zidan M, Zidan AAA, Attia Saad M, El-Shanshory M, Bakry U, Sobh A, Mohammed Abdou S, Labib Salem M. Altered microRNA expression profile is linked to T-cell exhaustion-related pathways in pediatric patients with acute lymphoblastic leukemia. Hum Immunol 2023; 84:113-122. [PMID: 36347735 DOI: 10.1016/j.humimm.2022.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 10/05/2022] [Accepted: 10/21/2022] [Indexed: 11/08/2022]
Abstract
BACKGROUND Although the phenotype and functions of exhausted T cells in several cancers have been identified, the involved molecular mechanisms remain to be further elucidated. In this regard, we have recently reported that the immunoregulatory cells, including myeloid-derived suppressor cells (MDSCs) and regulatory T cells (Tregs), share common dysregulated miRNAs that target specific immunosuppressive pathways in patients with in acute lymphoblastic leukemia (ALL). AIM In this study, we aimed to further explore whether similar dysregulation in miRNA expression is linked to T cell exhaustion and dysfunctionality in B cell ALL patients. METHODS Peripheral blood samples from pediatric patients with ALL were recruited before and after induction chemotherapy as well as from healthy donors. Affymetrix microarray platform was used for miRNA profiling, and qRT-PCR was used to validate the expression of certain miRNAs that are related to T cell exhaustion. Bioinformatics analysis was performed to explore whether the dysregulated miRNAs were linked to T-cell exhaustion related pathways. RESULTS A total of 516 miRNAs were dysregulated in ALL patients as compared to the healthy donor. Furthermore, among the total analyzed miRNAs, 10 were found to be linked to the key genes implicated in three exhaustion-related pathways; TGF-β, FOXO, and MAPK, as revealed by miR-pathway analysis. Moreover, qRT-PCR analysis showed similar expression pattern to those obtained by microarray analysis. CONCLUSION Our pilot study suggests the implication of certain miRNAs in T cell exhaustion pathways via targeting the specific key genes in those pathways.
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Affiliation(s)
- Mona Zidan
- Microbiology and Immunology Research Program, 57357 Children Cancer Hospital, Cairo, Egypt
| | - Abdel-Aziz A Zidan
- Department of Zoology, Faculty of Science, Damanhur University, Damanhur, Egypt; Center of Excellence in Cancer Research, Tanta University Educational Hospital, Tanta University, Tanta, Egypt
| | - Mohamed Attia Saad
- Center of Excellence in Cancer Research, Tanta University Educational Hospital, Tanta University, Tanta, Egypt; Department of Clinical Pathology, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Mohamed El-Shanshory
- Center of Excellence in Cancer Research, Tanta University Educational Hospital, Tanta University, Tanta, Egypt; Department of Pediatric, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Usama Bakry
- Egypt Center for Research and Regenerative Medicine, Cairo, Egypt
| | - Ashraf Sobh
- Department of Biology, Faculty of Science, Jazan University, Jazan, Kingdom of Saudi Arabia
| | | | - Mohamed Labib Salem
- Center of Excellence in Cancer Research, Tanta University Educational Hospital, Tanta University, Tanta, Egypt; Immunology and Biotechnology Unit, Department of Zoology, Faculty of Science, Tanta University, Tanta, Egypt.
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El-Ashmawy NE, Salem ML, Abd El-Fattah EE, Khedr EG. Targeting CD166 + lung cancer stem cells: Molecular study using murine dendritic cell vaccine. Toxicol Appl Pharmacol 2021; 429:115699. [PMID: 34437932 DOI: 10.1016/j.taap.2021.115699] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [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: 04/20/2021] [Revised: 08/15/2021] [Accepted: 08/19/2021] [Indexed: 02/07/2023]
Abstract
PURPOSE Cancer stem cells (CSC) are the most common causes of lung cancer relapse and mouse resistance to chemotherapy. CD166 was identified as CSC marker for lung cancer. Our study aimed to detect the effect of dendritic cell vaccine loaded with tumor cell lysate (TCL-DCV) on percentage of CD166+ CSC in lung of mice exposed to Benzo(a)Pyrene (BP). METHODS Female albino mice were divided into 5 groups (22 mice per group): normal control (NC), lung cancer control (LCC) (50 mg/kg BP orally, twice weekly for four weeks), dendritic cell (DC), TCL-DCV and cisplatin. Cisplatin (6 mg/kg, intraperitoneal) was given in two doses (18th and 20th week). 1 × 106 cells of each of DC and TCL-DCV was given subcutaneously as cisplatin. At the end of experiment (22 weeks), lung tissue was used for evaluation of cytotoxic T lymphocyte antigen-4 (Ctla-4), transforming growth factor-β (Tgf-β), forkhead box protein P3 (Foxp3), programmed death ligand 1 (Pd-l1) and interleukin 12 (Il-12) gene expression using quantitative RT-PCR. The percentage of CD83+, CD8+ and CD166+ cells in lung tissue were measured using flow cytometry. RESULTS The results revealed that TCL-DCV reversed the tumorigenic effect of BP in the lung as evidenced by histopathological examination. Compared to cisplatin, dendritic cell vaccination (TCL-DCV) significantly decreased percentage of CD166+ CSC. This anticancer stemness effect was attributed to the immune-stimulatory effect as indicated by increased percentage of CD83+ and CD8+ cells, upregulation of Il-12, and downregulation of Tgf-β, Ctla-4, Pd-l1 and Foxp3 gene expression compared to LCC group. CONCLUSIONS TCL-DCV ameliorated cancer stemness through modulating tumor immune archetypes which make it a potent therapeutic alternative to chemotherapy resistant cases.
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Affiliation(s)
- N E El-Ashmawy
- Department of Biochemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - M L Salem
- Department of Zoology, Faculty of Science, Tanta University, Tanta, Egypt; Center of Excellence in Cancer Research, Tanta University, Tanta, Egypt
| | - E E Abd El-Fattah
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt..
| | - E G Khedr
- Department of Biochemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
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Salem ML, Salman S, Barnawi IO. Brief in vitro IL-12 conditioning of CD8 + T Cells for anticancer adoptive T cell therapy. Cancer Immunol Immunother 2021; 70:2751-2759. [PMID: 33966093 DOI: 10.1007/s00262-021-02887-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 05/21/2020] [Accepted: 02/08/2021] [Indexed: 02/07/2023]
Abstract
Cancer immunotherapy represents a potential treatment approach through non-specific and specific enhancement of the immune responses. Adoptive cell therapy (ACT) is a potential modality of immunotherapy that depends on harvesting T cells from the tumor-bearing host, activating them in vitro and infusing them back to the same host. Several cytokines, in particular IL-2, IL-7 and IL-15, have been used to enhance survival T cells in vitro. Although effective, conditioning of T cells in vitro with these cytokines requires long-term culture which results in the loss of expression of their trafficking receptors mainly CD62L. It also results in exhaustion of the activated T cells and reduction in their functions upon adoptive transfer in vivo. Our recent studies and those of other groups showed that brief (3 days) conditioning of CD8+ T cells by IL-12 in vitro can result in enhancing function of tumor-reactive CD8+ T cells. Adoptive transfer of these IL-12-conditioned CD8+ T cells into tumor-bearing mice, preconditioned with cyclophosphamide, 1 day before ACT, induced tumor eradication that was associated with generation of tumor-specific memory response. In this review, we summarize studies that indicated to the superiority of IL-12 as a potential cytokine for conditioning T cells for ACT. In addition, we discuss some of the cellular and molecular mechanisms that govern how IL-12 programs CD8+ T cells to enhance their functionality especially in vitro and its implication in combination with other ACT modalities, opening a avenue for the clinical application of this cytokine.
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Affiliation(s)
- Mohamed Labib Salem
- Immunology and Biotechnology Unit, Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt.
- Center of Excellence in Cancer Research (CECR), Tanta University, Tanta, Egypt.
| | - Samar Salman
- Department of Dermatology and VenereologyFaculty of MedicineTanta University Hospital, Tanta University, Tanta, Egypt
| | - Ibrahim O Barnawi
- Animal Section, Department of Biological Sciences, Faculty of Science, Taibah University, Medina, Saudi Arabia
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Salem ML, El-Ashmawy NE, Abd El-Fattah EE, Khedr EG. Immunosuppressive role of Benzo[a]pyrene in induction of lung cancer in mice. Chem Biol Interact 2021; 333:109330. [PMID: 33245929 DOI: 10.1016/j.cbi.2020.109330] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [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: 05/09/2020] [Revised: 11/11/2020] [Accepted: 11/20/2020] [Indexed: 02/07/2023]
Abstract
AIM Benzo[a]pyrene [BP] is one of the major carcinogenic precursors of cigarette smoke that primary affects the lung at its first proximity. The goal of the current research was to elucidate new mechanisms underlying the tumorigenic impact of oral BP in the lung of mice, with focus on immunosuppressive effects and cancer stemming properties. METHODS Female albino mice (n = 44) were divided into 2 groups: normal control and BP group. BP was administered orally to mice (50 mg/kg body weight), twice a week for four weeks in succession. At the end of experiment (22 weeks), gene expression were measured for transforming growth factor-β (TGF-β), cytotoxic T lymphocyte antigen-4 (CTLA-4), programmed death ligand 1(PD-L1), forkhead box protein P3 (FOXP3) and interleukin 12 (IL-12) and CD83+, CD8+ and CD166+ cell percentage were measured in lung tissue. RESULTS The results indicated the tumorigenic role of BP in the lung which was evidenced by histopathological examination. BP group also showed immunosuppressive role which evidenced by increased expression of lung TGF-β, CTLA-4, PD-L1, FOXP3 genes and decreased expression of lung IL-12 gene compared with normal control group. BP group also showed decreased CD83+ cells, CD8+ cells and increased number of CD166+ cells. CONCLUSION Our findings indicated that BP has immunosuppressive role in lung cancer besides increasing the percentage of cancer stem like cells.
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Affiliation(s)
- Mohamed L Salem
- Department of Zoology, Faculty of Science, Tanta University, Tanta, Egypt; Center of Excellence in Cancer Research, Tanta University, Tanta, Egypt
| | - Nahla E El-Ashmawy
- Department of Biochemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Eslam E Abd El-Fattah
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa City, Manasoura, Dakahleya, Egypt.
| | - Eman G Khedr
- Department of Biochemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
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Labib Salem M, Zidan AAA, Ezz El-Din El-Naggar R, Attia Saad M, El-Shanshory M, Bakry U, Zidan M. Myeloid-derived suppressor cells and regulatory T cells share common immunoregulatory pathways-related microRNAs that are dysregulated by acute lymphoblastic leukemia and chemotherapy. Hum Immunol 2021; 82:36-45. [PMID: 33162185 DOI: 10.1016/j.humimm.2020.10.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 09/27/2020] [Accepted: 10/22/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Relapse remains a critical challenge in children with acute lymphoblastic leukemia (ALL). The emergence of immunoregulatory cells, including myeloid-derived suppressor cells (MDSCs), and T regulatory (Treg) cells, has been considered one potential mechanism of relapse in children with ALL. AIM This study aimed to address the microRNAs (miRNAs) related to MDSCs and Treg cells and to explore their targeted immunoregulatory pathways. METHODS Affymetrix microarray was used for global miRNA profiling in B-ALL pediatric patients before, during, and after induction of chemotherapy. Bioinformatics analysis was performed on MDSCs and Treg cells-related dysregulated miRNAs, and miR-Pathway analysis was performed to explore their targeted immunoregulatory pathways. RESULTS 516 miRNAs were dysregulated in ALL patients as compared to the healthy donor. Among them, 13 miRNAs and 8 miRNAs related to MDSCs and Treg cells, respectively, were common in all patients. Besides, 12 miRNAs were shared between MDSCs and Treg cells; 4 of them were common in all patients. Four immune-related pathways; TNF, TGF-β, FoxO, and Hippo were found implicated. CONCLUSION Our pilot study concluded certain miRNAs related to MDSCs and Treg cells, these miRNAs were linked to immunoregulatory pathways. Our results open avenues for testing those miRNA as molecular biomarkers for the immunosuppressive tumor microenvironment.
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Affiliation(s)
- Mohamed Labib Salem
- Immunology and Biotechnology Unit, Department of Zoology, Faculty of Science, Tanta University, Tanta, Egypt; Center of Excellence in Cancer Research, Tanta University Teaching Hospital, Tanta University, Tanta, Egypt.
| | - Abdel-Aziz A Zidan
- Center of Excellence in Cancer Research, Tanta University Teaching Hospital, Tanta University, Tanta, Egypt; Department of Zoology, Faculty of Science, Damanhur University, Damanhur, Egypt
| | - Randa Ezz El-Din El-Naggar
- Immunology and Biotechnology Unit, Department of Zoology, Faculty of Science, Tanta University, Tanta, Egypt
| | - Mohamed Attia Saad
- Center of Excellence in Cancer Research, Tanta University Teaching Hospital, Tanta University, Tanta, Egypt; Department of Clinical Pathology, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Mohamed El-Shanshory
- Center of Excellence in Cancer Research, Tanta University Teaching Hospital, Tanta University, Tanta, Egypt; Department of Pediatric, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Usama Bakry
- Genomics Research Program, 57357 Children Cancer Hospital, Cairo, Egypt
| | - Mona Zidan
- Immunology and Biotechnology Unit, Department of Zoology, Faculty of Science, Tanta University, Tanta, Egypt; Immunology Research Program, 57357 Children Cancer Hospital, Cairo, Egypt
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Wen K, Fang X, Yang J, Yao Y, Nandakumar KS, Salem ML, Cheng K. Recent Research on Flavonoids and their Biomedical Applications. Curr Med Chem 2021; 28:1042-1066. [PMID: 32660393 DOI: 10.2174/0929867327666200713184138] [Citation(s) in RCA: 103] [Impact Index Per Article: 34.3] [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: 09/15/2019] [Revised: 02/14/2020] [Accepted: 02/24/2020] [Indexed: 02/07/2023]
Abstract
Flavonoids, commonly found in various plants, are a class of polyphenolic compounds having a basic structural unit of 2-phenylchromone. Flavonoid compounds have attracted much attention due to their wide biological applications. In order to facilitate further research on the biomedical application of flavonoids, we surveyed the literature published on the use of flavonoids in medicine during the past decade, documented the commonly found structures in natural flavonoids, and summarized their pharmacological activities as well as associated mechanisms of action against a variety of health disorders including chronic inflammation, cancer, cardiovascular complications and hypoglycemia. In this mini-review, we provide suggestions for further research on the biomedical applications of flavonoids.
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Affiliation(s)
- Kangmei Wen
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Xiaochuan Fang
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Junli Yang
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Yongfang Yao
- School of Pharmaceutical Science, Zhengzhou University, Zhengzhou 450001, China
| | | | | | - Kui Cheng
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
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Salman S, Awad M, Sarsik S, Ibrahim AM, Fathi M, Agha NY, Anis R, El Ashal G, Salem ML. Treatment options for autoimmune bullous dermatoses other than systemic steroids: A systematic review and network meta-analysis. Dermatol Ther 2020; 33:e13861. [PMID: 32558137 DOI: 10.1111/dth.13861] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 04/06/2020] [Revised: 05/09/2020] [Accepted: 06/05/2020] [Indexed: 02/05/2023]
Abstract
Autoimmune blistering diseases can eventually cause life-threatening complications if left untreated. Although there is no cure for these bullous diseases; their therapy is based on suppressing the immune system to cease the de novo formation of the generated antibodies. The current study aimed to assess the safety and efficacy of using standing alone alternative therapies beyond systemic steroids for management of autoimmune bullous diseases. We searched six literature databases for both randomized and quasi-randomized clinical trials that assessed the efficacy of drugs other than systemic steroids in autoimmune bullous diseases. Outcomes were calculated as odds ratios with 95% confidence-interval. We used the R software to perform conventional and network meta-analyses with a frequentist approach. The network ranking order for 629 bullous pemphigoid patients, from the best to the worst was, clobetasol propionate cream (40 mg; (P-score = .87), clobetasol propionate cream (10-30 mg; P-score = .77), nicotinamide plus tetracycline (P-score = .56), steroids (P-score = .29) and doxycycline (P-score = .01). Limitations of this study are the small sample of the included studies except for blister trial and lack of randomization in most trials. To conclude, Combined doxycycline and nicotinamides are safer and more effective option for extensive bullous pemphigoid patients than the usual use of systemic steroids. For limited disease, topical corticosteroid (40 mg/d) use provides a safer and better response modality than the other proposed treatments.
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Affiliation(s)
- Samar Salman
- Department of Dermatology and Venereology, Tanta University Hospital, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Mina Awad
- Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Sameh Sarsik
- Department of Dermatology and Venereology, Tanta University Hospital, Faculty of Medicine, Tanta University, Tanta, Egypt
| | | | - Mohamed Fathi
- Kasr Al-Ainy Medical School, Cairo University, Cairo, Egypt
| | - Nadim Y Agha
- Kasr Al-Ainy Medical School, Cairo University, Cairo, Egypt
| | - Ruba Anis
- Kasr Al-Ainy Medical School, Cairo University, Cairo, Egypt
| | - Gehad El Ashal
- Kasr Al-Ainy Medical School, Cairo University, Cairo, Egypt
| | - Mohamed L Salem
- Immunology and Biotechnology Division, Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt
- Center of Excellence in Cancer Research, Tanta University, Tanta, Egypt
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Affiliation(s)
- Lamia Hamouda Elgarhy
- Dermatology and Venereology Department, Faculty of Medicine, Tanta University, Tanta, Egypt.
| | - Mohamed Labib Salem
- Immunology & Biotechnology Division, Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt
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Salman S, Attar YAE, Salem ML, Kashef SM, Zidan AAA, Abdel-Latif AM. WITHDRAWN: The effect of anti IL-2/IL-2 complex versus stand-alone low dose of IL-2 on imiquimod induced psoriasis like skin inflammation model. Immunol Lett 2020:S0165-2478(20)30382-5. [PMID: 32949628 DOI: 10.1016/j.imlet.2020.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/17/2020] [Accepted: 09/13/2020] [Indexed: 02/07/2023]
Abstract
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal.
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Affiliation(s)
- Samar Salman
- Department of Dermatology and Venereology, Tanta University Hospital, Faculty of Medicine, Tanta University, Tanta, Egypt.
| | - Yasmina Ahmed El Attar
- Department of Dermatology and Venereology, Tanta University Hospital, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Mohamed Labib Salem
- Department of Zoology, Faculty of Science, Immunology and Biotechnology Unit, Center of Excellence in Cancer Research, Tanta University Teaching Hospital, Tanta University, Tanta, Egypt
| | | | - Abdel-Aziz A Zidan
- Center of Excellence in Cancer Research, Tanta University, Tanta, Egypt; Zoology Department, Faculty of Science, Damanhur University, Damanhur, Egypt
| | - Amany Mohammad Abdel-Latif
- Department of Dermatology and Venereology, Tanta University Hospital, Faculty of Medicine, Tanta University, Tanta, Egypt
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El-Baz LMF, Shoukry NM, Hafez HS, Guzy RD, Salem ML. Fibroblast Growth Factor 2 Augments Transforming Growth Factor Beta 1 Induced Epithelial-mesenchymal Transition in Lung Cell Culture Model. Iran J Allergy Asthma Immunol 2020; 19:348-361. [PMID: 33463102 PMCID: PMC8366022 DOI: 10.18502/ijaai.v19i4.4110] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 05/27/2020] [Indexed: 02/05/2023]
Abstract
Impaired lung epithelial cell regeneration following injury may contribute to the development of pulmonary fibrosis. Epithelial-mesenchymal transition (EMT) is a critical event in embryonic development, wound healing following injury, and even cancer progression. Previous studies have shown that the combination of transforming growth factor beta-1 (TGFβ1) and fibroblast growth factor 2 (FGF2) induces EMT during cancer metastasis. However, this synergy remains to be elucidated in inducing EMT associated with wound healing after injury. We set out this study to determine the effect of fibroblast growth factor 2 (FGF2) on TGFβ1-induced EMT in the human lung epithelium. BEAS-2B and A549 cells were treated with TGFβ1, FGF2, or both. EMT phenotype was investigated morphologically and by measuring mRNA expression levels; using quantitative real-time PCR. E-cadherin expression was assayed by western blot and immunofluorescence staining. Cell migration was confirmed using a wound-healing assay. TGFβ1 induced a morphological change and a significant increase in cell migration of BEAS-2B cells. TGFβ1 significantly reduced E-cadherin (CDH1) mRNA expression and markedly induced expression of N-cadherin (CDH2), tenascin C (TNC), fibronectin (FN), actin alpha 2 (ACTA2), and collagen I (COL1A1). While FGF2 alone did not significantly alter EMT gene expression, it enhanced TGFβ1-induced suppression of CDH1 and upregulation of ACTA2, but not TNC, FN, and CDH2. FGF2 significantly inhibited TGFβ1-induced COL1A1 expression. Furthermore, FGF2 maintained TGFβ1-induced morphologic changes and increased the migration of TGFβ1-treated cells. This study suggests a synergistic effect between TGFβ1 and FGF2 in inducing EMT in lung epithelial cells, which may play an important role in wound healing and tissue repair after injury.
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Affiliation(s)
- Lamis M F El-Baz
- Department of Medicine, Section of Pulmonary and Critical Care Medicine, University of Chicago, Chicago, Illinois, USA AND Department of Zoology, Faculty of Science, Suez University, Suez, Egypt.
| | - Nahla M Shoukry
- Department of Zoology, Faculty of Science, Suez University, Suez, Egypt.
| | - Hani S Hafez
- Department of Zoology, Faculty of Science, Suez University, Suez, Egypt.
| | - Robert D Guzy
- Department of Medicine, Section of Pulmonary and Critical Care Medicine, University of Chicago, Chicago, Illinois, USA.
| | - Mohamed Labib Salem
- Department of Immunology and Biotechnology, Faculty of Science, Center of Excellence in Cancer Research, Tanta University, Tanta, Egypt.
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Salem ML, Gemeay A, Gomaa S, Aldubayan MA, Assy L. Superparamagnetic graphene oxide/magnetite nanocomposite delivery system for doxorubicin-induced distinguished tumor cell cycle arrest and apoptosis. J Nanopart Res 2020. [DOI: 10.1007/s11051-020-04932-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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El-Ashmawy NE, Salem ML, Khedr EG, El-Zamarany EA, Ibrahim AO. Dual-targeted therapeutic strategy combining CSC-DC-based vaccine and cisplatin overcomes chemo-resistance in experimental mice model. Clin Transl Oncol 2020; 22:1155-1165. [PMID: 31748959 DOI: 10.1007/s12094-019-02242-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 09/06/2019] [Accepted: 10/31/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND PURPOSE Emerging evidence suggests that one of the main reasons of chemotherapy treatment failure is the development of multi-drug resistance (MDR) associated with cancer stem cells (CSCs). Our aim is to identify a therapeutic strategy based on MDR-reversing agents. MATERIALS AND METHODS CSC-enriched Ehrlich carcinoma (EC) cell cultures were prepared by drug-resistant selection method using different concentrations of cisplatin (CIS). Cell cultures following drug exposure were analyzed by flow cytometry for CSC surface markers CD44+/CD24-. We isolated murine bone marrow-derived dendritic cells (DCs) and then used them to prepare CSC-DC vaccine by pulsation with CSC-enriched lysate. DCs were examined by flow cytometry for phenotypic markers. Solid Ehrlich carcinoma bearing mice were injected with the CSC-DC vaccine in conjunction with repeated low doses of CIS. Tumor growth inhibition was evaluated and tumor tissues were excised and analyzed by real-time PCR to determine the relative gene expression levels of MDR and Bcl-2. Histopathological features of tumor tissues excised were examined. RESULTS AND CONCLUSION Co-treatment with CSC-DC and CIS resulted in a significant tumor growth inhibition. Furthermore, the greatest response of downregulation of MDR and Bcl-2 relative gene expression were achieved in the same group. In parallel, the histopathological observations demonstrated enhanced apoptosis and absence of mitotic figures in tumor tissues of the co-treatment group. Dual targeting of resistant cancer cells using CSC-DC vaccine along with cisplatin represents a promising therapeutic strategy that could suppress tumor growth, circumvent MDR, and increase the efficacy of conventional chemotherapies.
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Affiliation(s)
- N E El-Ashmawy
- Biochemistry Department, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - M L Salem
- Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt
- Center of Excellence in Cancer Research, Tanta University, Tanta, Egypt
| | - E G Khedr
- Biochemistry Department, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - E A El-Zamarany
- Clinical Pathology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - A O Ibrahim
- Biochemistry Department, Faculty of Pharmacy, Tanta University, Tanta, Egypt.
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Elhendawy M, Abdul-Baki EA, Abd-Elsalam S, Hagras MM, Zidan AA, Abdel-Naby AY, Watany M, Elkabash IA, Salem ML, Elshanshoury M, Soliman S, Abdou S. Correction to: MicroRNA signature in hepatocellular carcinoma patients: identification of potential markers. Mol Biol Rep 2020; 47:4955. [PMID: 32524387 DOI: 10.1007/s11033-020-05564-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The correct spelling of the 7th authors' name is Mona Watany.
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Affiliation(s)
- Mohammed Elhendawy
- Department of Tropical Medicine and Infectious Diseases, Faculty of Medicine, Tanta University, El-Giash Street, Tanta, 31527, Egypt
| | - Enas A Abdul-Baki
- Physiology Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Sherief Abd-Elsalam
- Department of Tropical Medicine and Infectious Diseases, Faculty of Medicine, Tanta University, El-Giash Street, Tanta, 31527, Egypt.
| | - Maha M Hagras
- Clinical Pathology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Abdul-Aziz Zidan
- Immunology & Physiology Department, Faculty of Science, Damanhour University, Damanhour, Egypt
| | - Amira Y Abdel-Naby
- Clinical Pathology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Mona Watany
- Clinical Pathology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Ibrahem Ali Elkabash
- Public Health & Community Medicine Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | | | | | - Shaimaa Soliman
- Public Health & Community Medicine Department, Faculty of Medicine, Menoufia University, Shibin el Kom, Egypt
| | - Said Abdou
- Clinical Pathology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
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Elhendawy M, Abdul-Baki EA, Abd-Elsalam S, Hagras MM, Zidan AA, Abdel-Naby AY, Watny M, Elkabash IA, Salem ML, Elshanshoury M, Soliman S, Abdou S. MicroRNA signature in hepatocellular carcinoma patients: identification of potential markers. Mol Biol Rep 2020; 47:4945-4953. [PMID: 32430845 DOI: 10.1007/s11033-020-05521-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [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: 04/03/2020] [Accepted: 05/14/2020] [Indexed: 02/07/2023]
Abstract
MicroRNAs (miRNAs) play important roles in liver pathologies and they are potential biomarkers for diagnosis of liver diseases progression. Changes in miRNA sera expression can be used as non-invasive biomarkers for hepatocellular carcinoma (HCC). The aim of the study was to identify the miRNome profiling of HCC and its diagnostic value in distinguishing HCC from healthy individuals. Expression profiles of miRNAs in serum samples of 20 HCC patients and 10 healthy controls were detected. Whole miRNome profiling was done using next generation sequencing. Receiver operating characteristic (ROC) analysis was performed to assess the diagnostic performance of the deregulated miRNAs for discriminating HCC cases from healthy controls. MiRNA 142 was highly expressed in HCC (P value = 0.023) while miRNAs 191, 22, and 126 were higher in the controls (P value = 0.005, 0.034, 0.010 respectively). We have identified 5 novel miRNAs and they were highly expressed in HCC than controls. Analysis of ROC curve demonstrated that these deregulated miRNAs can be used as a reliable biomarker for detection of HCC with high diagnostic accuracy (AUC = 0.93). We have detected a panel of serum miRNAs that can be used as a reliable noninvasive screening biomarker of HCC. The study recommends further research to shed light on a possible role of the newly discovered novel miRNAs in HCC pathogenesis.
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Affiliation(s)
- Mohammed Elhendawy
- Department of Tropical Medicine and Infectious Diseases, Faculty of Medicine, Tanta University, El-Giash Street, Tanta, 31527, Egypt
| | - Enas A Abdul-Baki
- Physiology Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Sherief Abd-Elsalam
- Department of Tropical Medicine and Infectious Diseases, Faculty of Medicine, Tanta University, El-Giash Street, Tanta, 31527, Egypt.
| | - Maha M Hagras
- Clinical Pathology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Abdul-Aziz Zidan
- Immunology & Physiology Department, Faculty of Science, Damanhour University, Damanhour, Egypt
| | - Amira Y Abdel-Naby
- Clinical Pathology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Mona Watny
- Clinical Pathology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Ibrahem Ali Elkabash
- Public Health & Community Medicine Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | | | | | - Shaimaa Soliman
- Public Health & Community Medicine Department, Faculty of Medicine, Menoufia University, Shibin el Kom, Egypt
| | - Said Abdou
- Clinical Pathology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
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15
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Faris MAIE, Salem ML, Jahrami HA, Madkour MI, BaHammam AS. Ramadan intermittent fasting and immunity: An important topic in the era of COVID-19. Ann Thorac Med 2020; 15:125-133. [PMID: 32831933 PMCID: PMC7423203 DOI: 10.4103/atm.atm_151_20] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 04/18/2020] [Indexed: 02/07/2023] Open
Abstract
WITH the growing pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome (SARS)-related coronavirus (SARS-CoV-2) infection, a parallel growing interest arose concerning potential preventive and adjunct therapies, dietary and lifestyle modifications, and remedies that may boost the immunity against SARS-CoV-2 infection. Furthermore, as Ramadan intermittent religious fasting that is practiced by about one and a half billion Muslims throughout the globe is coincide this year with COVID-19 pandemic, a growing debate rose concerning the expected impact of fasting during Ramadan month and the associated dietary and lifestyle behaviors on the body's immunity against the pandemic infection. Published literature was searched to find out how intermittent fasting (IF) and its model of Ramadan affect the various aspects related to the body's immunity against microbial infections. IF was found to impact immunity by changing different related elements, including oxidative stress and inflammation, metabolism, body weight, and body composition. Dietary and lifestyle modifications during Ramadan month and their impact on immunity, such as water intake and hydration status, sleep duration and timing, caloric intake and mealtime, and social and spirtual activities, were addressed. Further research is warranted to figure out how IF during ramadan affects immunity against SARS-CoV-2 infection.
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Affiliation(s)
- Mo'ez A-Islam E. Faris
- Department of Clinical Nutrition and Dietetics, College of Health Sciences/Research Institute of Medical and Health Sciences (RIMHS), University of Sharjah, Sharjah, United Arab Emirates
| | - Mohamed L. Salem
- Immunology and Biotechnology Division, Department of Zoology, Faculty of Science, Tanta University, Egypt
| | - Haitham A. Jahrami
- Rehabilitation Services, Periphery Hospitals, Ministry of Health, Manama, Bahrain
- College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Bahrain
| | - Mohamed I. Madkour
- Department of Medical Laboratory Sciences, College of Health Sciences/Research Institute of Medical and Health Sciences (RIMHS), University of Sharjah, Sharjah, United Arab Emirates
| | - Ahmed S. BaHammam
- Department of Medicine, College of Medicine, University Sleep Disorders Center, King Saud University, Reyad, Saudi Arabia
- The Strategic Technologies Program of the National Plan for Sciences and Technology and Innovation in the Kingdom of Saudi Arabia, Riyadh, Saudi Arabia
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16
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Salem ML, El-Hennawy D. The possible beneficial adjuvant effect of influenza vaccine to minimize the severity of COVID-19. Med Hypotheses 2020; 140:109752. [PMID: 32361099 PMCID: PMC7194943 DOI: 10.1016/j.mehy.2020.109752] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 04/21/2020] [Indexed: 02/07/2023]
Affiliation(s)
- Mohamed Labib Salem
- Immunology and Biotechnology Unit, Department of Zoology, Faculty of Science, Tanta University, Tanta, Egypt; Center of Excellence in Cancer Research, Tanta University Teaching Hospital, Tanta University, Tanta, Egypt.
| | - Dina El-Hennawy
- Center of Excellence in Cancer Research, Tanta University Teaching Hospital, Tanta University, Tanta, Egypt; First Health Office, Basyun Central Hospital, Basyun, AlGharbiya, Egypt.
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17
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Ibrahim HM, Mohamed AH, Salem ML, Osman GY, Morsi DS. Anti-neoplastic and immunomodulatory potency of co-treatment based on bovine lactoferrin and/or muramyl dipeptide in tumor-bearing mice. Toxicol Res (Camb) 2020; 9:137-147. [PMID: 32440345 PMCID: PMC7233322 DOI: 10.1093/toxres/tfaa012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 02/24/2020] [Accepted: 03/02/2020] [Indexed: 02/07/2023] Open
Abstract
The current study investigates anti-neoplastic and immunomodulatory activities of co-treatment based on bovine lactoferrin (bLF) and/or muramyl dipeptide (MDP) with or without cisplatin (Cis) in tumor-bearing mice. In the present study, bLF (100 mg/kg; orally) and MDP (0.5 mg/kg; subcutaneously) was administered alone or together. MDP or bLF was co-treated with Cis (1 mg/kg; intraperitoneally) in mice-bearing Ehrlich solid carcinoma. Tumor size, tumor mass proliferation, apoptosis using immunohistochemistry, the alteration in spleen cell proliferation, phenotype using flow cytometry and white blood cells total and differential counts were detected. Treatment with Cis or (bLF and MDP) significantly reduced tumor size, upregulated the pro-apoptotic p53 expression and downregulated the anti-apoptotic Bcl-2 and proliferative marker PCNA expression compared to non-treated tumor-bearing animals. Moreover, co-treatment of MDP and Cis significantly potentiated the reduction of the tumor size, downregulated the Bcl-2 and PCNA expression and upregulated the p53 expression compared to Cis-treated animals. While bLF and Cis co-treatment positively controlled PCNA and p53 expression compared to tumor-bearing animals, it significantly potentiated the reduction of the tumor size and downregulated the Bcl-2 expression compared to Cis-treated animals. Co-treatment of (bLF and MDP), (bLF and Cis) or (MDP and Cis) increased the spleen cell proliferation and altered the immunological profile of the CD3+CD4+, CD3+CD8+, CD3+CD4+CD69+, CD3+CD8+CD69+ and CD11b+Ly6G+ cells to achieve better immune response against tumor. In conclusion, co-treatments based on bLF and/or MDP are promising therapies against cancer, through their potency to control proliferation, enhance apoptosis and improve the immune status against tumor cells.
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Affiliation(s)
- Hany M Ibrahim
- Zoology Department, Faculty of Science, Menoufia University, Shibin El Kom 32511, Egypt
- Correspondence address. Zoology Department, Faculty of Science, Menoufia University, Shibin El Kom, Egypt. Tel: +02-0100-3689245, Fax: +02-048-2235689; E-mail:
| | - Azza H Mohamed
- Zoology Department, Faculty of Science, Menoufia University, Shibin El Kom 32511, Egypt
| | - Mohamed L Salem
- Zoology Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
- Center of Excellence in Cancer Research, Tanta University, Tanta 31527, Egypt
| | - Gamalat Y Osman
- Zoology Department, Faculty of Science, Menoufia University, Shibin El Kom 32511, Egypt
| | - Dalia S Morsi
- Zoology Department, Faculty of Science, Menoufia University, Shibin El Kom 32511, Egypt
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Affiliation(s)
- Samar Salman
- Department of Dermatology and Venereology, Tanta University Hospital, Faculty of Medicine, Tanta University, Tanta, Egypt.
| | - Mohamed Labib Salem
- Department of Zoology, Faculty of Science, Immunology and Biotechnology Unit, Center of Excellence in Cancer Research, Tanta University Teaching Hospital, Tanta University, Tanta, Egypt
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Assy L, Gemeay A, Gomaa S, Aldubayan MA, Salem ML. Impact of graphene oxide nano sheets loaded with chemotherapeutic drug on tumor cells. J Nanopart Res 2020. [DOI: 10.1007/s11051-020-04790-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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El-Baiomy EM, Salem ML, El-Amir A, Sabry NA, Wallston KA, El-Mashad N. Correlations between MHLC scores and Indicators of Immune Response in Egyptian Women with Breast Cancer. Gulf J Oncolog 2020; 1:7-11. [PMID: 32342912 DOI: pmid/32342912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/26/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Recent studies indicate the immune dysfunction in cancer patients in comparison with healthy individuals. The quality and quantity of this dysfunction are not equal in all patients even with similar cancer type. AIM This study aims to correlate health locus of control (HLC) beliefs with CD4+ helper T (Thelper) cells, T regulatory (Treg) cells, NK cells, IL-1ß and TNF-a in breast cancer patients. PATIENTS AND METHODS The study included 30 early diagnostic breast cancer patients who responded to Form C of the MHLC questionnaire that assessed internal (IHLC), chance (CHLC), doctor (DHLC) and other person's (OHLC) control of the patient's health status. Peripheral blood samples were collected to analyze the numbers and phenotype of Thelper cells, Treg cells and NK cells by flow cytometry and to measure gene expression of IL-1ß and TNF-a with real time PCR. RESULTS A significant positive correlation was found between IHLC with Thelper cells and NK cells. However, a significant inverse correlation was found between DHLC with NK, Thelper and Treg cells. CONCLUSION There is strong probability that the quality of immunity in cancer patients is related to their MHLC beliefs. Further research is recommended for studying whether MHLC beliefs of patients with other types of cancer can improve their immune responses and how beliefs control immune system.
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Affiliation(s)
- Eman M El-Baiomy
- Immunology Department, Faculty of Science, Cairo University, Egypt
| | - Mohamed L Salem
- Immunology and biotechnology Department, Faculty of Science, Tanta University, Egypt
- Center of Excellence in Cancer Research, Tanta, Egypt
| | - Azza El-Amir
- Immunology Department, Faculty of Science, Cairo University, Egypt
| | - Noha A Sabry
- Psychiatry Department, Faculty of Medicine, Cairo University, Egypt
| | - Kenneth A Wallston
- Institute for Medicine and Public Health, Vanderbilt University Medical Center, Nashville, TN USA
| | - Nehal El-Mashad
- Oncology Department, Faculty of Medicine, Tanta University, Egypt
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Aboalsoud A, El-Ghaiesh SH, Abd Elmonem FF, Salem ML, Abdel Rahman MN. The effect of low-dose naltrexone on solid Ehrlich carcinoma in mice: The role of OGFr, BCL2, and immune response. Int Immunopharmacol 2020; 78:106068. [PMID: 31835085 DOI: 10.1016/j.intimp.2019.106068] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 08/06/2019] [Revised: 11/11/2019] [Accepted: 11/19/2019] [Indexed: 02/07/2023]
Abstract
AIMS Cancer is a major worldwide health problem. Cancer cells express opioid growth factor (OGF) which controls their growth. Naltrexone in low dose (LDN) blocks opioid receptors intermittently and controls the replication of cancer cells. The aim of this study was to investigate the effect of LDN and its chemotherapeutic additive effect on the growth of solid Ehrlich carcinoma in mice with focus on the OGFr and immune responses. MAIN METHODS Sixty female Swiss albino mice were assigned into 5 groups (n: 12 mice each): (i): normal control, (ii): Solid Ehrlich carcinoma (SEC), (iii): SEC treated with LDN, (iv): SEC treated with 5-fluorouracil (5-FU), (v): SEC treated with LDN + 5-FU. All drugs were started when the tumor became palpable on 9th day. At the end of the study animals were sacrificed, blood and tissue samples were collected. Tumor weight and volume were measured. Splenocytes and myeloid derived suppressor cells (MDSC) were counted. Tumor expression of opioid growth factor receptors (OGFr), serum level of IFN-γ, tumor histopathology (H&E) and immunohistochemistry staining of p21, p53, Bcl2 were assessed. KEY FINDINGS All drug-treated groups showed reduction in tumor weight and volume, significant increase of splenocyte with tendency to reduce MDSC cell counts. LDN led to significant increase in OGFr both in solo and in combination with 5FU. Serum IFN-γ is significantly increased by LDN but decreased by 5-FU. Also, LDN and 5FU increased immunehistochemical staining of p21 while decreased immunostaining of Bcl2. In animals treated with a combination of LDN and 5FU a maximal downregulation of the antiapoptotic mediator BCL2 was observed. SIGNIFICANCE The current study suggested that LDN may play a role in inhibiting cancer cell growth and highlights the possibility of promising combination with cancer chemotherapeutics, which guarantee further clinical studies for approval.
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Affiliation(s)
- Alshimaa Aboalsoud
- Department of Pharmacology, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Sabah H El-Ghaiesh
- Department of Pharmacology, Faculty of Medicine, Tanta University, Tanta, Egypt; Department of Pharmacology, Faculty of Medicine, University of Tabuk, Tabuk, Saudi Arabia.
| | - Fleur F Abd Elmonem
- Department of Pharmacology, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Mohammed L Salem
- Department of Zoology, Faculty of Science, Tanta University, Tanta, Egypt
| | - Mohamed N Abdel Rahman
- Department of Pharmacology, Faculty of Medicine, Tanta University, Tanta, Egypt; Department of Clinical Pharmacology, Faculty of Medicine, Bisha University, Bisha, Saudi Arabia
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22
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Salem ML, El-Naggar SA, Mobasher MA, Elgharabawy RM. The Toll-Like Receptor 3 Agonist Polyriboinosinic Polyribocytidylic Acid Increases the Numbers of NK Cells with Distinct Phenotype in the Liver of B6 Mice. J Immunol Res 2020; 2020:2489407. [PMID: 32211442 PMCID: PMC7077049 DOI: 10.1155/2020/2489407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 02/15/2020] [Indexed: 02/07/2023] Open
Abstract
One of the activating factors of the cells of the innate immune system is the agonists of toll-like receptors (TLRs). Our earlier publications detailed how poly(I:C), a TLR3 agonist, elevates the NK cell population and the associated antigen-specific CD8+ T cell responses. This study involved a single treatment of the B6 mice with poly(I:C) intraperitoneally. To perform a detailed phenotypic analysis, mononuclear cells were prepared from each of the liver, peripheral blood, and spleen. These cells were then examined for their NK cell population by flow cytometric analysis following cell staining with indicated antibodies. The findings of the study showed that the NK cell population of the liver with an NK1.1highCD11bhighCD11chigh B220+Ly6G- phenotype was elevated following the treatment with poly(I:C). In the absence of CD11b molecule (CR3-/- mice), poly(I:C) can still increase the remained numbers of NK cells with NK1.1+CD11b- and NK1.1+Ly6G- phenotypes in the liver while their numbers in the blood decrease. After the treatment with anti-AGM1 Ab, which induced depletion of NK1.1+CD11b+ cells and partial depletion of CD3+NK1.1+ and NK1.1+CD11b- cell populations, poly(I:C) normalized the partial decreases in the numbers of NK cells concomitant with increased numbers of NK1.1-CD11b+ cell population in both liver and blood. Regarding mice with a TLR3-/- phenotype, their injection with poly(I:C) resulted in the partial elevation in the NK cell population as compared to wild-type B6 mice. To summarise, the TLR3 agonist poly(I:C) results in the elevation of a subset of liver NK cells expressing the two myeloid markers CD11c and CD11b. The effect of poly(I:C) on NK cells is partially dependent on TLR3 and independent of the presence of CD11b.
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Affiliation(s)
- Mohamed L. Salem
- 1Immunology and Biotechnology Unit, Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt
- 2Center of Excellence in Cancer Research, New Tanta University Teaching Hospital, Tanta University, Egypt
| | - Sabry A. El-Naggar
- 1Immunology and Biotechnology Unit, Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt
- 2Center of Excellence in Cancer Research, New Tanta University Teaching Hospital, Tanta University, Egypt
| | - Maysa A. Mobasher
- 3Biochemistry Division, Department of Pathology, College of Medicine, Jouf University, Sakakah, Saudi Arabia
- 4Department of Clinical Pathology, El Ahrar Educational Hospital, Ministry of Health, Zagazig, Egypt
| | - Rehab M. Elgharabawy
- 5Department of Pharmacology and Toxicology, College of Pharmacy, Qassim University, Buraydah, Saudi Arabia
- 6Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
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23
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El-Ashmawy NE, El-Zamarany EA, Salem ML, Khedr EG, Ibrahim AO. A new strategy for enhancing antitumor immune response using dendritic cells loaded with chemo-resistant cancer stem-like cells in experimental mice model. Mol Immunol 2019; 111:106-117. [PMID: 31051312 DOI: 10.1016/j.molimm.2019.04.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 12/23/2018] [Revised: 03/19/2019] [Accepted: 04/01/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIM Cancer stem cells (CSCs) are rare cell population present in the tumor bulk that are thought to be the reason for treatment failure following chemotherapy in terms of their intrinsic chemo-resistance. Our study aimed to develop an effective therapeutic strategy to target chemo-resistant cancer stem - like cells population in solid Ehrlich carcinoma (SEC) mice model using dendritic cells (DCs) loaded with enriched tumor cells lysate bearing CSC-like phenotype as a vaccine. MATERIALS AND METHODS Ehrlich carcinoma cell line was exposed to different concentrations of cisplatin, doxorubicin, or paclitaxel. Drug treatment that resulted in drug surviving cells with the highest expression of CSCs markers (CD44+/CD24-) was selected to obtain enriched cell cultures with resistant CSCs population. Dendritic cells were isolated from mice bone marrow, pulsed with enriched CSC lysate, analyzed and identified (CD11c, CD83 and CD86). SEC-bearing mice were treated with loaded or unloaded DCs either as single treatment or in combination with repeated low doses of cisplatin. IFN- γ serum level and p53gene expression in tumor tissues were determined by ELISA and real-time PCR, respectively. RESULTS AND CONCLUSION The results revealed that vaccination with CSC loaded DCs significantly reduced tumor size, prolonged survival rate, increased IFN-γ serum levels, and upregulated p53gene expression in SEC bearing mice. These findings were more evident and significant in the group co-treated with CSC-DC and cisplatin rather than other treated groups. This study opens the field for combining CSC-targeted immunotherapy with repeated low doses chemotherapy as an effective strategy to improve anticancer immune responses.
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Affiliation(s)
| | - Enas A El-Zamarany
- Clinical Pathology Department, Faculty of Medicine, Tanta University, Egypt
| | - Mohamed L Salem
- Zoology Department, Faculty of Science, Tanta University, Egypt; Center of Excellence in Cancer Research, Tanta University, Tanta, Egypt
| | - Eman G Khedr
- Biochemistry Department, Faculty of Pharmacy, Tanta University, Egypt
| | - Amera O Ibrahim
- Biochemistry Department, Faculty of Pharmacy, Tanta University, Egypt.
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Koo HY, El-Baz LM, House SL, Cilvik SN, Dorry SJ, Shoukry NM, Salem ML, Hafez HS, Dulin NO, Ornitz DM, Guzy RD. Fibroblast growth factor 2 decreases bleomycin-induced pulmonary fibrosis and inhibits fibroblast collagen production and myofibroblast differentiation. J Pathol 2018; 246:54-66. [PMID: 29873400 PMCID: PMC6175645 DOI: 10.1002/path.5106] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 04/12/2018] [Accepted: 05/19/2018] [Indexed: 02/05/2023]
Abstract
Fibroblast growth factor (FGF) signaling has been implicated in the pathogenesis of pulmonary fibrosis. Mice lacking FGF2 have increased mortality and impaired epithelial recovery after bleomycin exposure, supporting a protective or reparative function following lung injury. To determine whether FGF2 overexpression reduces bleomycin-induced injury, we developed an inducible genetic system to express FGF2 in type II pneumocytes. Double-transgenic (DTG) mice with doxycycline-inducible overexpression of human FGF2 (SPC-rtTA;TRE-hFGF2) or single-transgenic controls were administered intratracheal bleomycin and fed doxycycline chow, starting at either day 0 or day 7. In addition, wild-type mice received intratracheal or intravenous recombinant FGF2, starting at the time of bleomycin treatment. Compared to controls, doxycycline-induced DTG mice had decreased pulmonary fibrosis 21 days after bleomycin, as assessed by gene expression and histology. This beneficial effect was seen when FGF2 overexpression was induced at day 0 or day 7 after bleomycin. FGF2 overexpression did not alter epithelial gene expression, bronchoalveolar lavage cellularity or total protein. In vitro studies using primary mouse and human lung fibroblasts showed that FGF2 strongly inhibited baseline and TGFβ1-induced expression of alpha smooth muscle actin (αSMA), collagen, and connective tissue growth factor. While FGF2 did not suppress phosphorylation of Smad2 or Smad-dependent gene expression, FGF2 inhibited TGFβ1-induced stress fiber formation and serum response factor-dependent gene expression. FGF2 inhibition of stress fiber formation and αSMA requires FGF receptor 1 (FGFR1) and downstream MEK/ERK, but not AKT signaling. In summary, overexpression of FGF2 protects against bleomycin-induced pulmonary fibrosis in vivo and reverses TGFβ1-induced collagen and αSMA expression and stress fiber formation in lung fibroblasts in vitro, without affecting either inflammation or epithelial gene expression. Our results suggest that in the lung, FGF2 is antifibrotic in part through decreased collagen expression and fibroblast to myofibroblast differentiation. Copyright © 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Hyun Young Koo
- University of Chicago, Department of Medicine, Section of Pulmonary and Critical Care Medicine, Chicago, IL, USA
| | - Lamis M.F. El-Baz
- University of Chicago, Department of Medicine, Section of Pulmonary and Critical Care Medicine, Chicago, IL, USA
- Suez University, Faculty of Science, Zoology Department, Suez, Egypt
| | - Stacey L. House
- Washington University School of Medicine, Department of Emergency Medicine, St. Louis, MO, USA
| | - Sarah N. Cilvik
- Washington University School of Medicine, Department of Developmental Biology, St. Louis, MO, USA
| | - Samuel J. Dorry
- University of Chicago, Department of Medicine, Section of Pulmonary and Critical Care Medicine, Chicago, IL, USA
| | - Nahla M. Shoukry
- Suez University, Faculty of Science, Zoology Department, Suez, Egypt
| | - Mohamed L. Salem
- Tanta University, Center of Excellence in Cancer Research, Faculty of Science, Immunology & Biotechnology Department, Tanta, Egypt
| | - Hani S. Hafez
- Suez University, Faculty of Science, Zoology Department, Suez, Egypt
| | - Nickolai O. Dulin
- University of Chicago, Department of Medicine, Section of Pulmonary and Critical Care Medicine, Chicago, IL, USA
| | - David M. Ornitz
- Washington University School of Medicine, Department of Developmental Biology, St. Louis, MO, USA
| | - Robert D. Guzy
- University of Chicago, Department of Medicine, Section of Pulmonary and Critical Care Medicine, Chicago, IL, USA
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Zidan AAA, El-Ashmawy NE, Khedr EG, Ebeid EZM, Salem ML, Mosalam EM. Loading of doxorubicin and thymoquinone with F2 gel nanofibers improves the antitumor activity and ameliorates doxorubicin-associated nephrotoxicity. Life Sci 2018; 207:461-470. [PMID: 29885348 DOI: 10.1016/j.lfs.2018.06.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [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: 04/19/2018] [Accepted: 06/05/2018] [Indexed: 02/07/2023]
Abstract
AIMS This study aimed to elucidate the benefits of nanoformulation of doxorubicin (DOX) and thymoquinone (TQ) loaded with nanofibers of poly-N-acetyl glucosamine (pGlcNAc), which is known as F2 gel, over their conventional free forms. Moreover, evaluate the role of TQ in improving chemotherapeutic effect and ameliorating nephrotoxicity of DOX. MAIN METHODS The drugs were loaded into F2 gel followed by measurement of physicochemical characterization. Next, MCF-7 and HEPG2 cells were treated with the prepared formulations and assessed for apoptosis alongside with cellular proliferation. Furthermore, we experimentally induced Heps liver carcinoma in mice and at the end of the treatment, mice were sacrificed and serum samples were used to assess nephrotoxicity markers; blood urea nitrogen (BUN) and creatinine. Additionally, renal tissue was used for determination of oxidative markers and antioxidant enzymes; whereas, tumor tissue was utilized to measure nuclear factor kappa B (NF-κB) and caspase 3. KEY FINDINGS Nanoformulation showed dramatic increase in apoptosis, caspase 3, and antioxidant enzymes; in contrast to, dramatic fall in cell viability, tumor volume, oxidative and nephrotoxicity markers, and NF-κB compared to corresponding free therapies. Combined therapy was superior in conserving the measured parameters compared to other treated groups. SIGNIFICANCE F2 gel loaded with DOX and TQ revealed enhanced antitumor activity with minimal toxicity. Moreover, using TQ as an adjuvant with DOX could augment its cytotoxicity and ameliorate nephrotoxicity.
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Affiliation(s)
- Abdel-Aziz A Zidan
- Zoology Department, Faculty of Science, Damanhour University, Egypt; Center of Excellence in cancer Research (CECR), Tanta University, Tanta, Egypt.
| | | | - Eman G Khedr
- Biochemistry Department, Faculty of Pharmacy, Tanta University, Egypt
| | - El-Zeiny M Ebeid
- Physical Chemistry Department, Faculty of Science, Tanta University, Egypt
| | - Mohamed L Salem
- Immunology and Biotechnology Unit, Zoology Department, Faculty of Science, Tanta University, Egypt
| | - Esraa M Mosalam
- Biochemistry Department, Faculty of Pharmacy, Menoufia University, Egypt
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Elmaadawi IH, Mohamed BM, Ibrahim ZAS, Abdou SM, El Attar YA, Youssef A, Shamloula MM, Taha A, Metwally HG, El Afandy MM, Salem ML. Stem cell therapy as a novel therapeutic intervention for resistant cases of alopecia areata and androgenetic alopecia. J DERMATOL TREAT 2018; 29:431-440. [PMID: 27553744 DOI: 10.1080/09546634.2016.1227419] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [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] [Indexed: 02/07/2023]
Abstract
BACKGROUND Management of alopecia areata (AA) and androgenetic alopecia (AGA) is often challenging as patients may be resistant to currently available modalities of treatment. The use of stem cells may be a novel option for resistant cases. OBJECTIVE To evaluate the safety and efficacy of the use of autologous bone marrow derived mononuclear cells (including stem cells) as compared to follicular stems cells for the management of resistant cases of AA and AGA. METHODS This study included 40 patients (20 AA patients and 20 AGA patients), all patients were treated with a single session of intradermal injection of autologous stem cells (SCs) therapy. They were divided into four groups according to the applied modality [either autologous bone marrow derived mononuclear cells (bone marrow mononuclear cells [BMMCs] or autologous follicular stem cells [FSC]). RESULTS Six months after stem cell therapy (SCT) injection, there was a significant improvement, confirmed by immunostaining and digital dermoscopy. The mean improvement in all groups was "very good". There was no significant difference between both methods in either type of alopecia. No serious adverse events were reported. CONCLUSION Autologous BMMCs and FSC seem to be a safe tolerable and effective treatment for the management of both resistant AA and AGA.
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Affiliation(s)
- Iman Hamed Elmaadawi
- a Department of Dematology and Venereology , Faculty of Medicine, Tanta University , Tanta , Egypt
| | - Basma Mourad Mohamed
- a Department of Dematology and Venereology , Faculty of Medicine, Tanta University , Tanta , Egypt
| | | | - Said Mohamed Abdou
- b Department of Clinical Pathology , Faculty of Medicine, Tanta University , Tanta , Egypt
| | - Yasmina Ahmed El Attar
- a Department of Dematology and Venereology , Faculty of Medicine, Tanta University , Tanta , Egypt
| | - Amira Youssef
- b Department of Clinical Pathology , Faculty of Medicine, Tanta University , Tanta , Egypt
| | | | - Atef Taha
- d Department of Internal Medicine, Faculty of Medicine , Tanta University , Tanta , Egypt
| | - Hala Gabr Metwally
- e Department Clinical Pathology, Faculty of Medicine , Cairo University , Cairo , Egypt
| | - Mohamed M El Afandy
- f Department of Anathesia and Intensive Care, Faculty of Medicine , Tanta University , Tanta , Egypt
| | - Mohamed Labib Salem
- g Department of Zoology, Immunology and Biotechnology Unit, Faculty of Science , Center of Excellence in Cancer Research, Tanta University , Tanta , Egypt
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Abstract
AIM OF STUDY Ovarian cancer (OC) leads to high mortality rate if diagnosed at late stage. The aim of the present study was to increase the survival rate by early disease diagnosis. MATERIALS AND METHODS A total of 21 females were divided into three groups. The control (n = 3), benign (n = 8), and malignant group (n = 10). We used flow cytometry to analyze cell cycle, caspase-3, -8, and annexin V. RESULTS The results showed that the annexin V expressed in malignant group more than benign and normal groups with (P = 0.000 and P = 0.007), respectively. Caspase-3 and 8 expression decreased in benign and malignant group than in normal group (P = 0.012 and P = 0.007), respectively. Furthermore, sub-G1 apoptosis level decreased statistically significant in benign and malignant group than in normal group (P = 0.012 and P = 0.007), respectively. These data showed that (S phase) level had statistically significant increase in malignant group (P = 0.007) than the control group and marked statistically significant decrease (P = 0.000) in benign group than malignant group. This study explained changes in sub-G1 apoptosis for benign group increase statistically significant (P = 0.003) than malignant group level. CONCLUSION Caspase-3 and -8 and annexin V may serve as diagnostic markers in OC, also explained that the decrement in control of the S phase in the cell cycle may considered one of the significant factors in the development of ovarian tumors.
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Affiliation(s)
- Hanaa Ali Hassan
- Department of Biology, Faculty of Science and Arts, Taibah University, Al-Ola, KSA; Department of Zoology, Faculty of Science, Division of Physiology, Mansoura University, Mansoura, Egypt
| | - Mohamed Labib Salem
- Department of Zoology, Faculty of Science, Immunology and Biotechnology Unit; Center of Excellence in Cancer Research, Tanta University Teatching Hospital, Tanta University, Tanta, Egypt
| | - Mona Samy Gouida
- Department of Molecular Immunology, Flow Cytometry and Genetic Units, Mansoura Children Hospital, Mansoura University, Mansoura, Egypt
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Abdellateif MS, Shaarawy SM, Kandeel EZ, El-Habashy AH, Salem ML, El-Houseini ME. A novel potential effective strategy for enhancing the antitumor immune response in breast cancer patients using a viable cancer cell-dendritic cell-based vaccine. Oncol Lett 2018; 16:529-535. [PMID: 29928442 PMCID: PMC6006460 DOI: 10.3892/ol.2018.8631] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 11/16/2017] [Indexed: 02/07/2023] Open
Abstract
Dendritic cells (DCs) have been used in a number of clinical trials for cancer immunotherapy; however, they have achieved limited success in solid tumors. Consequently the aim of the present study was to identify a novel potential immunotherapeutic target for breast cancer patients through in vitro optimization of a viable DC-based vaccine. Immature DCs were primed by viable MCF-7 breast cancer cells and the activity and maturation of DCs were assessed through measuring CD83, CD86 and major histocompatibility complex (MHC)-II expression, in addition to different T cell subpopulations, namely CD4+ T cells, CD8+ T cells, and CD4+CD25+ forkhead box protein 3 (Foxp3)+ regulatory T cells (Tregs), by flow cytometric analysis. Foxp3 level was also measured by enzyme-linked immunosorbent assay (ELISA) in addition to reverse-transcription quantitative polymerase chain reaction. The levels of interleukin-12 (IL-12) and interferon-γ (IFN-γ) were determined by ELISA. Finally, the cytotoxicity of cytotoxic T lymphocytes (CTLs) was evaluated through measuring lactate dehydrogenase (LDH) release by ELISA. The results demonstrated that CD83+, CD86+ and MHC-II+ DCs were significantly elevated (P<0.001) following priming with breast cancer cells. In addition, there was increased activation of CD4+ and CD8+ T-cells, with a significant decrease of CD4+CD25+Foxp3+ Tregs (P<0.001). Furthermore, a significant downregulation of FOXP3 gene expression (P<0.001) was identified, and a significant decrease in the level of its protein following activation (P<0.001) was demonstrated by ELISA. Additionally, significant increases in the secretion of IL-12 and IFN-γ (P=0.001) were observed. LDH release was significantly increased (P<0.001), indicating a marked cytotoxicity of CTLs against cancer cells. Therefore viable breast cancer cell-DC-based vaccines could expose an innovative avenue for a novel breast cancer immunotherapy.
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Affiliation(s)
- Mona S. Abdellateif
- Medical Biochemistry and Molecular Biology Unit, Department of Cancer Biology, National Cancer Institute, Cairo University, Cairo 11976, Egypt
| | - Sabry M. Shaarawy
- Medical Biochemistry and Molecular Biology Unit, Department of Cancer Biology, National Cancer Institute, Cairo University, Cairo 11976, Egypt
| | - Eman Z. Kandeel
- Department of Clinical Pathology, National Cancer Institute, Cairo University, Cairo 11976, Egypt
| | - Ahmed H. El-Habashy
- Department of Pathology, National Cancer Institute, Cairo University, Cairo 11976, Egypt
| | - Mohamed L. Salem
- Department of Zoology, Faculty of Science, Tanta University, Tanta, Gharbia 31511, Egypt
| | - Motawa E. El-Houseini
- Medical Biochemistry and Molecular Biology Unit, Department of Cancer Biology, National Cancer Institute, Cairo University, Cairo 11976, Egypt
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Kamal M, Nafie EHO, Elsers S, Alanwar S, Ibrahim R, Farag F, Mlees M, Simões BM, Spence K, Santiago-Gómez A, Salem ML, Clarke RB. Ethnicity influences breast cancer stem cells' drug resistance. Breast J 2018; 24:701-703. [PMID: 29498455 DOI: 10.1111/tbj.13021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Revised: 04/02/2017] [Accepted: 04/04/2017] [Indexed: 02/05/2023]
Affiliation(s)
- Mohamed Kamal
- Department of Zoology, Faculty of Science, University of Benha, Benha, Egypt
| | - Ebtesam H O Nafie
- Department of Zoology, Faculty of Science, University of Benha, Benha, Egypt
| | - Shimaa Elsers
- Department of Zoology, Faculty of Science, University of Benha, Benha, Egypt
| | - Salma Alanwar
- Department of Zoology, Faculty of Science, University of Benha, Benha, Egypt
| | - Rawayeh Ibrahim
- Department of Zoology, Faculty of Science, University of Benha, Benha, Egypt
| | - Fatma Farag
- Department of Zoology, Faculty of Science, University of Benha, Benha, Egypt
| | - Mohamed Mlees
- Department of General Surgery, Surgical Oncology Unit, Faculty of Medicine, University of Tanta, Tanta, Egypt
| | - Bruno M Simões
- Breast Biology Group, Division of Molecular and Clinical Cancer Sciences, University of Manchester, Manchester, UK
| | - Kath Spence
- Breast Biology Group, Division of Molecular and Clinical Cancer Sciences, University of Manchester, Manchester, UK
| | - Angélica Santiago-Gómez
- Breast Biology Group, Division of Molecular and Clinical Cancer Sciences, University of Manchester, Manchester, UK
| | - Mohamed L Salem
- Department of Zoology, Faculty of Science, University of Tanta, Tanta, Egypt
| | - Robert B Clarke
- Breast Biology Group, Division of Molecular and Clinical Cancer Sciences, University of Manchester, Manchester, UK
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Johnson CB, May BR, Riesenberg BP, Suriano S, Mehrotra S, Garrett-Mayer E, Salem ML, Jeng EK, Wong HC, Paulos CM, Wrangle JM, Cole DJ, Rubinstein MP. Enhanced Lymphodepletion Is Insufficient to Replace Exogenous IL2 or IL15 Therapy in Augmenting the Efficacy of Adoptively Transferred Effector CD8 + T Cells. Cancer Res 2018; 78:3067-3074. [PMID: 29636345 PMCID: PMC6108084 DOI: 10.1158/0008-5472.can-17-2153] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 03/05/2018] [Accepted: 04/02/2018] [Indexed: 02/07/2023]
Abstract
Effector CD8+ T cells conditioned with IL12 during activation mediate enhanced antitumor efficacy after adoptive transfer into lymphodepleted hosts; this is due in part to improved IL7 responsiveness. Therefore, we hypothesized that increasing the intensity or type of lymphodepletion would deplete more IL7-consuming host cells and improve the persistence and antitumor activity of IL12-conditioned CD8+ T cells. Using cyclophosphamide, fludarabine, and total body irradiation (TBI, 6 Gy) either individually or in combination, we found that combined lymphodepletion best enhanced T-cell engraftment in mice. This improvement was strongly related to the extent of leukopenia, as posttransfer levels of donor T cells inversely correlated to host cell counts after lymphodepletion. Despite the improvement in engraftment seen with combination lymphodepletion, dual-agent lymphodepletion did not augment the antitumor efficacy of donor T cells compared with TBI alone. Similarly, IL7 supplementation after TBI and transfer of tumor-reactive T cells failed to improve persistence or antitumor immunity. However, IL15 or IL2 supplementation greatly augmented the persistence and antitumor efficacy of donor tumor-reactive T cells. Our results indicate that the amount of host IL7 induced after single agent lymphodepletion is sufficient to potentiate the expansion and antitumor activity of donor T cells, and that the efficacy of future regimens may be improved by providing posttransfer support with IL2 or IL15.Significance: The relationship between lymphodepletion and cytokine support plays a critical role in determining donor T-cell engraftment and antitumor efficacy. Cancer Res; 78(11); 3067-74. ©2018 AACR.
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Affiliation(s)
- C Bryce Johnson
- Department of Surgery, Medical University of South Carolina, Charleston, South Carolina
| | - Bennett R May
- Department of Surgery, Medical University of South Carolina, Charleston, South Carolina
| | - Brian P Riesenberg
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, South Carolina
| | - Samantha Suriano
- Department of Surgery, Medical University of South Carolina, Charleston, South Carolina
| | - Shikhar Mehrotra
- Department of Surgery, Medical University of South Carolina, Charleston, South Carolina
| | - Elizabeth Garrett-Mayer
- Department of Public Health Sciences, Medical University of South Carolina, Charleston, South Carolina
| | - Mohamed L Salem
- Immunology and Biotechnology Division, Faculty of Science, Tanta University, Center of Excellence in Cancer Research, Tanta, Egypt
| | | | - Hing C Wong
- Altor BioScience Corporation, Miramar, Florida
| | - Chrystal M Paulos
- Department of Surgery, Medical University of South Carolina, Charleston, South Carolina
- Department of Dermatology and Dermatological Surgery, Medical University of South Carolina, Charleston, South Carolina
| | - John M Wrangle
- Department of Dermatology and Dermatological Surgery, Medical University of South Carolina, Charleston, South Carolina
- Department of Medicine, Medical University of South Carolina, Charleston, South Carolina
| | - David J Cole
- Department of Surgery, Medical University of South Carolina, Charleston, South Carolina
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, South Carolina
| | - Mark P Rubinstein
- Department of Surgery, Medical University of South Carolina, Charleston, South Carolina.
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, South Carolina
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El-Kholy SE, El-Husseiny IM, Meshrif WS, El-Azm AA, Salem ML. Does the mosquito Culex pipiens represent a potential vector of hepatitis C virus? Med Vet Entomol 2018; 32:155-161. [PMID: 29239006 DOI: 10.1111/mve.12288] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 11/09/2017] [Accepted: 11/20/2017] [Indexed: 02/05/2023]
Abstract
Infection with hepatitis C virus (HCV) is a public health burden in several countries. Although transmission through blood is the most likely potential route of HCV infection, other sources warrant exploration. This study was designed to examine the possibility that the mosquito Culex pipiens (Diptera: Culicidae) might serve as a vector of HCV. A series of laboratory experiments were conducted in female Cx. pipiens that were fed on blood taken from HCV patients and tested for the presence of HCV RNAs using a reverse transcription polymerase chain reaction technique. In addition, the ability of the female mosquito to transmit HCV to human blood through membrane feeding or to its offspring (larvae) was tested. Although positive strand RNA was detected on days 1,7 and 14, negative strand HCV RNA was detected in mosquito body homogenate on days 7 and 14. Positive strands were also detected in the head, alimentary canal and salivary glands of mosquito adults at 1 week post-feeding, as well as in their offspring (larvae). An ex vivo assay demonstrated that HCV-infected mosquitoes were able to transmit the virus RNA into naive human blood samples via a membrane feeder. The present data indicate that the mosquito Cx. pipiens may be a potential vector of HCV.
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Affiliation(s)
- S E El-Kholy
- Department of Zoology, Faculty of Science, Tanta University, Tanta, Egypt
| | - I M El-Husseiny
- Department of Zoology, Faculty of Science, Tanta University, Tanta, Egypt
| | - W S Meshrif
- Department of Zoology, Faculty of Science, Tanta University, Tanta, Egypt
| | - A Abou El-Azm
- Department of Tropical Medicine and Infectious Diseases, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - M L Salem
- Department of Zoology, Faculty of Science, Tanta University, Tanta, Egypt
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Salem ML, El-Shanshory MR, Abdou SH, Attia MS, Sobhy SM, Zidan MF, Zidan AAA. Chemotherapy alters the increased numbers of myeloid-derived suppressor and regulatory T cells in children with acute lymphoblastic leukemia. Immunopharmacol Immunotoxicol 2018; 40:158-167. [PMID: 29388481 DOI: 10.1080/08923973.2018.1424897] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Acute lymphoblastic leukemia (ALL) is the most common cancer diagnosed in children. The precise mechanism behind the relapse in this disease is not clearly known. One possible mechanism could be the accumulation of immunosuppressive cells, including myeloid-derived suppressor cells (MDSCs) and T regulatory cells (Tregs) which we and others have reported to mediate suppression of anti-tumor immune responses. AIM In this study, we aimed to analyze the numbers of these cells in a population of B-ALL pediatric patients. METHODS Peripheral blood samples withdrawn from B-ALL pediatric patients (n = 45 before, during and after the induction phase of chemotherapy. Using multi parametric flow cytometric analysis. MDSCs were identified as Lin-HLA-DR-CD33+CD11b+; and Treg cells were defined as CD4+CD25+CD127-/low. RESULTS Early diagnosed B-ALL patients showed significant increases in the numbers of MDSCs and Tregs as compared to healthy volunteers. During induction of chemotherapy, however, the patients showed higher and lower numbers of MDSCs and Treg cells, respectively as compared to early diagnosed patients (i.e., before chemotherapy). After induction of chemotherapy, the numbers of MDSCs and Treg cells showed higher increases and decreases, respectively as compared to the numbers in patients during chemotherapy. CONCLUSION Our results indicate that B-ALL patients harbor high numbers of both MDSCs and Tregs cells. This pilot study opens a new avenue to investigate the mechanism mediating the emergence of these cells on larger number of B-ALL patients at different treatment stages.
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Affiliation(s)
- Mohamed Labib Salem
- a Center of Excellence in Cancer Research (CECR), Tanta University , Tanta , Egypt
- b Department of Zoology, Faculty of Science , Tanta University , Tanta , Egypt
| | - Mohamed R El-Shanshory
- a Center of Excellence in Cancer Research (CECR), Tanta University , Tanta , Egypt
- c Pediatric Oncology, Faculty of Medicine , Tanta University , Tanta , Egypt
| | - Said H Abdou
- a Center of Excellence in Cancer Research (CECR), Tanta University , Tanta , Egypt
- d Clinical Pathology, Faculty of Medicine , Tanta University , Tanta , Egypt
| | - Mohamed S Attia
- a Center of Excellence in Cancer Research (CECR), Tanta University , Tanta , Egypt
- d Clinical Pathology, Faculty of Medicine , Tanta University , Tanta , Egypt
| | - Shymaa M Sobhy
- a Center of Excellence in Cancer Research (CECR), Tanta University , Tanta , Egypt
- b Department of Zoology, Faculty of Science , Tanta University , Tanta , Egypt
| | - Mona F Zidan
- a Center of Excellence in Cancer Research (CECR), Tanta University , Tanta , Egypt
- b Department of Zoology, Faculty of Science , Tanta University , Tanta , Egypt
| | - Abdel-Aziz A Zidan
- a Center of Excellence in Cancer Research (CECR), Tanta University , Tanta , Egypt
- e Department of Zoology , Damanhour University , Damanhour , Egypt
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Elwan N, Salem ML, Kobtan A, El-Kalla F, Mansour L, Yousef M, Al-Sabbagh A, Zidan AAA, Abd-Elsalam S. High numbers of myeloid derived suppressor cells in peripheral blood and ascitic fluid of cirrhotic and HCC patients. Immunol Invest 2018; 47:169-180. [PMID: 29182438 DOI: 10.1080/08820139.2017.1407787] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is the 3rd most common cause of cancer-related death worldwide. It has evolved different immune escape mechanisms, which might include emergence of lymphoid and myeloid regulatory cells. Aim of this work: To determine the numbers of Myeloid-derived suppressor cells (MDSCs) in peripheral blood and ascitic fluid in cirrhosis and HCC and their relation to IFN-γ and α-fetoprotein (α-FP). PATIENTS AND METHODS Sixty individuals were enrolled in this study; forty cirrhotic patients with ascites; twenty without HCC (Group I), and twenty with HCC (group II) as well as twenty healthy individuals as a control group (group III). The phenotype and numbers of MDSCs were analyzed in peripheral blood of all the individuals and ascitic fluid of the patients using flow cytometry. Intracellular IFN-γ and serum alfa-fetoprotein were measured. RESULTS Significant increases in the relative and the mean number of peripheral blood MDSCs were found in the cirrhosis and HCC groups than in the control group, with the HCC group showing the highest number. MDSC count was negatively correlated with IFN-γ levels, while α-FP was positively correlated with MDSC% in the HCC group. MDSC count was low in ascitic fluid of both HCC and cirrhosis groups with no significant difference between the 2 groups. CONCLUSION A high frequency of MDSCs was detected in the peripheral blood of cirrhotic and HCC patients, indicating presence of immunosuppressive arms. These cells could be targeted to develop a new effective immunotherapy or an adjuvant to current therapies.
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Affiliation(s)
- Nadia Elwan
- a Faculty of Medicine, Department of Tropical Medicine , Tanta University , Tanta , Egypt
| | - Mohamed Labib Salem
- b Faculty of science, Zoology Department, Immunology and Biotechnology Unit , Tanta University , Tanta , Egypt
| | - Abdelrahman Kobtan
- a Faculty of Medicine, Department of Tropical Medicine , Tanta University , Tanta , Egypt
| | - Ferial El-Kalla
- a Faculty of Medicine, Department of Tropical Medicine , Tanta University , Tanta , Egypt
| | - Loai Mansour
- a Faculty of Medicine, Department of Tropical Medicine , Tanta University , Tanta , Egypt
| | - Mohamed Yousef
- a Faculty of Medicine, Department of Tropical Medicine , Tanta University , Tanta , Egypt
| | - Ashraf Al-Sabbagh
- c Department of General Medicine , Almehalla Hospital , Elmehalla , Egypt
| | - Abdel-Aziz A Zidan
- d Faculty of science, Zoology Department , Damanhour University , Tanta , Egypt
| | - Sherief Abd-Elsalam
- a Faculty of Medicine, Department of Tropical Medicine , Tanta University , Tanta , Egypt
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Salem ML, El-Naggar SA, Mahmoud HA, Elgharabawy RM, Bader AM. Cyclophosphamide eradicates murine immunogenic tumor coding for a non-self-antigen and induces antitumor immunity. Int J Immunopathol Pharmacol 2018; 32:2058738418796591. [PMID: 30270681 PMCID: PMC6168726 DOI: 10.1177/2058738418796591] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Although the majority of cancers respond to chemotherapy, most cancer types relapse, at least in part, due to the poor immunogenicity of most tumor. We have reported before that treatment of tumor bearing mice with a combination of the anti-cancer chemotherapy cyclophosphamide (CTX) and immunotherapy can result in complete tumor regression using T-cell receptor (TCR) transgenic CD8+ T cells specific to antigens. This study aimed to determine whether chemotherapy can cure immunogenic tumor which expresses non-self-tumor antigen and result in antitumor immunity. Either EL4 cell line, a poorly immunogenic thymoma, or EG7, a clone of EL4 cells transfected with ovalbumin (OVA), as a non-self-antigen were inoculated subcutaneously into wild type or splenectomized C57BL/6 mice and then treated once with intraperitoneal (i.p.) injection of 4 mg CTX/mouse. In certain experiments, the mice were rechallenged with the same tumor type 1-2 months after the primary challenge. Treatment of EL4 bearing mice with CTX induced transient antitumor effect followed by tumor progression. Interestingly, however, treatment of EG7-bearing mice with CTX resulted in regression of early and advanced tumors. EG7 tumor-free mice rejected the second and the third challenges with EG7 cells, but not with challenge EL4 cells. These antitumor effects did not require spleen, since splenectomized mice showed similar antitumor effects of CTX on EG7 cells. Taken together, these data indicate that expression of non-self-antigen by poorly immunogenic tumor might be a reliable means to increase its immunogenicity and its response to chemotherapy.
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Affiliation(s)
- Mohamed L Salem
- Immunology and Biotechnology Unit,
Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt
- Center of Excellence in Cancer Research,
New Teaching Hospital, Tanta University, Tanta, Egypt
- Mohamed L Salem, Immunology and
Biotechnology Unit, Zoology Department, Faculty of Science, Tanta University,
Tanta, Egypt. ;
| | - Sabry A El-Naggar
- Immunology and Biotechnology Unit,
Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt
- Center of Excellence in Cancer Research,
New Teaching Hospital, Tanta University, Tanta, Egypt
| | - Heba A Mahmoud
- Department of Pharmacology, College of
Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Rehab M Elgharabawy
- Pharmacology and Toxicology Department,
Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Abeer M Bader
- Zoology Department, Faculty of Science,
Cairo University, Giza, Egypt
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Ghaber SM, Trabelsi N, Salem ML, Haddad F, Abba A, Darragi I, Abbes S. Hb Moscva [β24(B6)Gly→Asp (GGT>GAT), HBB: c.74G>A]: An Unstable Hemoglobin Newly Detected as a De Novo Mutation in a Mauritanian Patient. Hemoglobin 2018; 42:7-10. [PMID: 29564956 DOI: 10.1080/03630269.2018.1428620] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Unstable hemoglobins (Hbs) are a group of Hb disorders that could be the origin of chronic hemolytic anemia. Most of these disorders are caused by point mutations taking place in the globin genes and affecting the stability of the Hb molecule. They are inherited as autosomal dominant diseases and described worldwide. Herein we report a new observation of an unstable variant in the Mauritanian population. The patient was a young girl of Mauritanian origin. She presented with chronic hemolytic anemia with an unknown etiology after being referred to several medical centers. Laboratory investigations based on routine analyses, capillary electrophoresis (CE), cation exchange high performance liquid chromatography (HPLC) and DNA sequencing revealed an abnormal unstable Hb known as Hb Moscva [β24(B6)Gly→Asp (GGT>GAT), HBB: c.74G>A] that occurred as a de novo mutation newly detected in an African girl of Mauritanian origin.
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Affiliation(s)
- Sidi M Ghaber
- a Department of Basic Sciences, Faculty of Medicine , Nouakchott , Mauritania
- b Maurilab , Nouakchott , Mauritania
| | - Nawel Trabelsi
- c Laboratory of Cell and Molecular Hematology , Pasteur Institute of Tunis, University of Tunis El Manar , Tunis , Tunisia
| | | | - Faten Haddad
- c Laboratory of Cell and Molecular Hematology , Pasteur Institute of Tunis, University of Tunis El Manar , Tunis , Tunisia
| | | | - Imen Darragi
- c Laboratory of Cell and Molecular Hematology , Pasteur Institute of Tunis, University of Tunis El Manar , Tunis , Tunisia
| | - Salem Abbes
- c Laboratory of Cell and Molecular Hematology , Pasteur Institute of Tunis, University of Tunis El Manar , Tunis , Tunisia
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Salem ML, E El Naggar R, A El Naggar S, A Mobasher M, H Mahmoud M, Badr G. Higher Activities of Hepatic Versus Splenic CD8+ T Cells in Responses to Adoptive T Cell Therapy and Vaccination of B6 Mice with MHC Class-1 Binding Antigen. Iran J Allergy Asthma Immunol 2017; 16:537-553. [PMID: 29338160 DOI: pmid/29338160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Accepted: 12/23/2017] [Indexed: 02/07/2023]
Abstract
The liver has unique microenvironment which is known to induce tolerance of cytolytic CD8+ T cells to hepatic and extra hepatic antigens, resulting in persistence of infection of the liver by the hepatitis B and C viruses. However, under some conditions, functional immune responses can be elicited in the liver in particular to show preferential retention of activated CD8+ T cells. It is not clear whether this retention depends on the type of the exogenous immunostimulatory or the endogenous innate immune cells. The T cell receptor (TCR) transgenic OT-1 (CD8+) mouse model was used in which OT-1 cells were harvested from the spleen of the donor and transferred into recipient mice followed by immunization with OVA peptide followed by injection of GM-CSF, CCL21 chemokine, or cytokines (IL-2, IL-12, or IL-15), or the toll-like receptor 3 agonist poly(I:C). Co-administration of any of these immunostimulatory agents relatively augmented the retention of CD8+ T cells with different levels of effects. Compared to spleen, the Ag-specific CD8+ T cells in the liver showed higher activities including expansion, proliferation, apoptosis and memory responses as well as cytolytic function. While depletion of natural killer cells significantly decreased the hepatic retention of the antigen-specific T cells, depletion of Kupffer cells showed opposite effect. Taken together, the antigen reactive T cells in the liver have higher activities than their counterparts in the peripheral tissues such as spleen. These data have important clinical implications for designing immunotherapeutic protocols toward the liver diseases.
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Affiliation(s)
- Mohamed Labib Salem
- Immunology and Biotechnology Unit, Department of Zoology, Faculty of Science, Tanta University, Tanta, Egypt AND Center of Excellence in Cancer Research, Tanta University, Tanta, Egypt
| | - Randa E El Naggar
- Immunology and Biotechnology Unit, Department of Zoology, Faculty of Science, Tanta University, Tanta, Egypt
| | - Sabry A El Naggar
- Immunology and Biotechnology Unit, Department of Zoology, Faculty of Science, Tanta University, Tanta, Egypt AND Center of Excellence in Cancer Research, Tanta University, Tanta, Egypt
| | - Maysa A Mobasher
- Biochemistry Division, Department of Pathology, College of Medicine, Aljouf University, Sakaka, Saudi Arabia AND Department of Clinical Pathology, El Ahrar Educational Hospital, Ministry of Health, Zagazig, Egypt
| | - Mohamed H Mahmoud
- Deanship of Scientific Research, King Saud University, Riyadh, Saudi Arabia AND Food Science and Nutrition Department, National Research Center, Dokki, Cairo, Egypt
| | - Gamal Badr
- Laboratory of Immunology and Molecular Biology, Zoology Department, Faculty of Science, Assiut University, Assiut, Egypt
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El-Ashmawy NE, Khedr EG, Ebeid EZM, Salem ML, Zidan AAA, Mosalam EM. Enhanced anticancer effect and reduced toxicity of doxorubicin in combination with thymoquinone released from poly-N-acetyl glucosamine nanomatrix in mice bearing solid Ehrlish carcinoma. Eur J Pharm Sci 2017; 109:525-532. [PMID: 28890201 DOI: 10.1016/j.ejps.2017.09.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [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: 05/30/2017] [Revised: 08/04/2017] [Accepted: 09/06/2017] [Indexed: 02/07/2023]
Abstract
The incidence of breast cancer remarkably increases all over the world. Therefore, there is a great demand to introduce new approaches into cancer treatment field. The current study was designated to evaluate the role of doxorubicin (DOX) and/or thymoquinone (TQ) nanomatrix in potentiating the cytotoxicity of either drug, and to investigate the ability of TQ to reduce cardiotoxicity of DOX in solid Ehrlich carcinoma (SEC)-bearing mice. DOX and TQ were loaded into F2 gel, which is a fully-acetylated poly-N-acetyl glucosamine nanofiber. SEC was induced in female albino mice as a model for experimentally induced breast cancer. Mice were randomly divided into eight groups (n=10): normal control, tumor control, F2 gel, free DOX, DOX+F2 gel, free TQ, TQ+F2 gel, and DOX+TQ+F2 gel. On day 28th from tumor inoculation, mice were sacrificed and blood samples were collected for measurement of the cardiac markers; lactate dehydrogenase (LDH) and creatine kinase (CK-MB). In addition, cardiac tissue was utilized for determination of lipid peroxide, and tumor tissue was used for measurement of anti-apoptotic protein Bcl-2 as well as gene expression of the tumor suppressor gene P53. DOX and/or TQ showed a significant reduction in tumor volume, cardiac markers, tumor Bcl-2, and P53 upregulation compared to free conventional therapies. Co-treatment with DOX+TQ+F2 gel was superior to all other groups in exerting beneficial effects. Use of TQ as an adjuvant therapy with DOX could improve its cytotoxic effects and limit its cardiac toxicity. Furthermore, loading of DOX and/or TQ into F2 gel showed a remarkable anti-cancer activity.
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MESH Headings
- Acetylglucosamine/administration & dosage
- Animals
- Antibiotics, Antineoplastic/administration & dosage
- Benzoquinones/administration & dosage
- Carcinoma, Ehrlich Tumor/drug therapy
- Carcinoma, Ehrlich Tumor/metabolism
- Carcinoma, Ehrlich Tumor/pathology
- Chemotherapy, Adjuvant
- Creatine Kinase/blood
- Creatine Kinase, MB Form/blood
- Doxorubicin/administration & dosage
- Female
- Gene Expression Regulation, Neoplastic/drug effects
- Genes, p53
- L-Lactate Dehydrogenase/blood
- Malondialdehyde/metabolism
- Mice
- Microscopy, Electron, Transmission
- Myocardium/metabolism
- Nanostructures/administration & dosage
- Nanostructures/ultrastructure
- Proto-Oncogene Proteins c-bcl-2/metabolism
- Tumor Burden/drug effects
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Affiliation(s)
| | - Eman G Khedr
- Biochemistry Department, Faculty of Pharmacy, Tanta University, Egypt
| | - El-Zeiny M Ebeid
- Physical Chemistry Department, Faculty of Science, Tanta University, Egypt
| | - Mohamed L Salem
- Immunology and Biotechnology Unit, Zoology Department, Faculty of Science Tanta University, Egypt
| | | | - Esraa M Mosalam
- Biochemistry Department, Faculty of Pharmacy, Menoufia University, Egypt.
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Salem ML, Nassef M, Gomaa S, Essa I. Synergistic combination of murine bone marrow-derived dendritic cells loaded ex vivo with whole tumor lysate and systemic chemotherapy mediates antitumor immune responses in vivo. Biomed Pharmacother 2017. [PMID: 28648976 DOI: 10.1016/j.biopha.2017.06.046] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
In order to get mature dendritic cells (DC) that is a crucial prerequisite for success in tumor immunotherapy protocols. Herein, we assumed that administration of murine bone marrow (BM)-derived DC (BM-DC), loaded ex vivo with whole Ehrlich ascites carcinoma (EAC) lysate, in the context of systemic chemotherapy cyclophosphamide (CTX) to induce antitumor immune responses, may be a good strategy to improve the presentation of tumor-specific antigens to the immune system. In the first series of experiments, BM cells generated either from BM of naïve mice or from BM of EAC-bearing mice were cultured in the presence of GM-CSF and IL-4 for 6days. At day 7, cells were loaded for 48h with one of the following maturation agents: EAC lysate (1mg/ml), poly-inosinic: polycytidylic acid [poly(I:C)] (25μg/ml) or mRNA encoding human telomerase reverse transcriptase (hTERT-mRNA) (2μg/ml). In the second series of experiments, EAC-bearing mice were intraperitoneally (i.p.) injected with CTX followed by i.p. vaccination with DC, loaded ex vivo with EAC lysate. DC yield and the phenotypic expression of maturity-related surface markers of DC (i.e. CD11b and CD11c) in both series of experiments were investigated. As a result, a significant decrease in the number of DC generated from poly(I:C)-supplemented BM culture from EAC-bearing mice has been detected. Loading of BM cells with poly(I:C), EAC lysate or hTERT-mRNA could induce the expression of CD11b and CD11c. Additionally, vaccination of EAC-bearing mice with DC loaded ex vivo with EAC lysate following CTX treatment, resulted in increases in the percentage of multiple populations of CD11b+CD11c+ in BM, spleen and peripheral blood (PB). To conclude, further researches to clarify the mechanism involved in DC maturation are crucial not only to comprehend DC biology but also to optimize DC immunotherapy protocols.
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Affiliation(s)
- Mohamed L Salem
- Zoology Department, Faculty of Science, Tanta University, El-Giesh St., Gharbia province, Tanta 31527, Egypt; Center of Excellence in Cancer Research, Tanta University, El-Giesh St., Gharbia province, Tanta 31527, Egypt
| | - Mohamed Nassef
- Zoology Department, Faculty of Science, Tanta University, El-Giesh St., Gharbia province, Tanta 31527, Egypt.
| | - Soha Gomaa
- Zoology Department, Faculty of Science, Tanta University, El-Giesh St., Gharbia province, Tanta 31527, Egypt
| | - Ibrahim Essa
- Zoology Department, Faculty of Science, Tanta University, El-Giesh St., Gharbia province, Tanta 31527, Egypt
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Salem ML, Zidan AAA, Attia M, El-Naggar RE, Nassef M, Abou El-Azm AR, El-Bate H, Yussif M, Galal S, Abo Senna M, El Demellawy M. IFN-α-based treatment of patients with chronic HCV show increased levels of cells with myeloid-derived suppressor cell phenotype and of IDO and NOS. Immunopharmacol Immunotoxicol 2017; 39:188-198. [PMID: 28472907 DOI: 10.1080/08923973.2017.1320670] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Hepatitis C virus (HCV) infection causes chronic hepatitis, which is often associated with suppressed anti-HCV immune responses. We have recently reported accumulation of myeloid-derived suppressor cells (MDSCs) and suppressed immunity in cancer patients. AIM The main aim of this study was to determine whether chronic HCV patients harbor high of MDSCs in general and in nonresponders to IFN-based therapy in particular as well as to analyze the immune suppressive molecules. METHODS Peripheral blood samples withdrawn from 154 patients with chronic HCV infection and were categorized into responders and nonresponders based on viral titer upon IFN-α treatment. RESULTS The relative and absolute numbers of MDSCs defined as Lin-/HLA-DR-/CD33+/CD11b+ increased in all HCV patients, where they were higher in nonresponders than in responders. Additionally, the levels of MDSCs after 4-6 months of treatment in responders were lower than during the course of treatment. The responders also showed higher levels of IL-2 coincided with increased numbers of dendritic cells (DCs), CD4+ and CD8+ T cells. The levels of total NOS and IDO were also higher in nonresponders as compared to responders and healthy controls, while the expression levels of CD3ζ was lower in responders as compared to nonresponders and healthy volunteers. CONCLUSION Chronic HCV patients harbor high numbers of MDSCs, which are higher in nonresponders than in responders. The higher numbers of MDSCs associated with increases in the suppressing factors.
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Affiliation(s)
- Mohamed Labib Salem
- a Zoology Department, Immunology and Biotechnology Unit, Faculty of Science , Tanta University , Tanta , Egypt
| | - Abdel-Aziz A Zidan
- b Zoology Department, Faculty of Science , Damanhour University , Damanhour , Egypt
| | - Mohamed Attia
- c Department of Clinical Pathology, Faculty of Medicine , Tanta University , Tanta , Egypt
| | - Randa E El-Naggar
- a Zoology Department, Immunology and Biotechnology Unit, Faculty of Science , Tanta University , Tanta , Egypt
| | - Mohamed Nassef
- a Zoology Department, Immunology and Biotechnology Unit, Faculty of Science , Tanta University , Tanta , Egypt
| | - Abdel Raouf Abou El-Azm
- d Department of Tropical Medicine and Infectious Diseases, Faculty of Medicine , Tanta University , Tanta , Egypt
| | - Hasan El-Bate
- e Department of Tropical Medicine and Infectious Diseases, Faculty of Medicine , Kafrelshheikh University , Kafr Elshheikh , Egypt
| | - Mohamed Yussif
- d Department of Tropical Medicine and Infectious Diseases, Faculty of Medicine , Tanta University , Tanta , Egypt
| | - Sohaila Galal
- a Zoology Department, Immunology and Biotechnology Unit, Faculty of Science , Tanta University , Tanta , Egypt
| | - Mohamed Abo Senna
- a Zoology Department, Immunology and Biotechnology Unit, Faculty of Science , Tanta University , Tanta , Egypt
| | - Maha El Demellawy
- f City of Scientific Research and Technological Applications , Pharmaceutical and Fermentation Industries Development Center , New Burg El Arab , Egypt
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Elmahdy NA, Sokar SS, Salem ML, Sarhan NI, Abou-Elela SH. Anti-fibrotic potential of human umbilical cord mononuclear cells and mouse bone marrow cells in CCl 4- induced liver fibrosis in mice. Biomed Pharmacother 2017; 89:1378-1386. [PMID: 28320105 DOI: 10.1016/j.biopha.2017.03.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 12/31/2016] [Revised: 02/17/2017] [Accepted: 03/03/2017] [Indexed: 02/07/2023] Open
Abstract
Liver fibrosis is the consequence of hepatocyte injury that leads to the activation of hepatic stellate cells (HSC). The treatment of choice is Liver transplantation; however, it has many problems such as surgery-related complications, immunological rejection and high costs associated with the procedure. Stem cell-based therapy would be a potential alternative, so the aim of this study is to investigate the therapeutic potential of human umbilical cord mononuclear cells (MNC) and mouse bone marrow cells (BMC) against carbon tetrachloride (CCl4) induced liver fibrosis in mice and compare it with that of silymarin. In the present study, male albino mice (N=60) were divided into six groups (10 mice each), the first group served as the normal control group while the remaining five groups were rendered fibrotic by intraperitoneal injections of CCl4 and being left for 6 weeks to develop hepatic fibrosis. Thereafter, the mice were divided into CCl4 group, CCl4 group receiving MNC or BMC or silymarin or MNC and silymarin combination. After the specified treatment period, animals were then euthanized, blood and tissue samples were collected for measurement of alanine aminotransferase(ALT), aspartate aminotransferase(AST), malondialdehyde(MDA), reduced glutathione(GSH), collagen, Laminin, transforming growth factor β1(TGFβ1), tumor necrosis factor alpha(TNFα). MNC, BMC, and the combination therapy showed a significant decrease in ALT, AST, MDA, collagen, Laminin, TGFβ1, and TNFα and a significant increase in GSH. The data displayed a similar regression of fibrosis with the histological and immunohistological parameters. In conclusion, MNC, BMC and the combination therapy showed a potential therapeutic effect against liver fibrosis via reducing oxidative stress, inflammatory mediators, and fibrogenic markers.
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Affiliation(s)
- Nageh Ahmed Elmahdy
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Samia Salem Sokar
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Mohamed Labib Salem
- Zoology Department, Faculty of Science, Immunology and Biotechnology Unit, Immunology and Biotechnology Division, Center of Excellence in Cancer Research, Tanta University, Tanta, Egypt
| | | | - Sherin Hamed Abou-Elela
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Tanta University, Tanta, Egypt.
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Salahuddin N, Elbarbary AA, Salem ML, Elksass S. Antimicrobial and antitumor activities of 1,2,4-triazoles/polypyrrole chitosan core shell nanoparticles. J PHYS ORG CHEM 2017. [DOI: 10.1002/poc.3702] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Nehal Salahuddin
- Department of Chemistry, Faculty of Science; Tanta University; Tanta Egypt
| | - Ahmed A. Elbarbary
- Department of Chemistry, Faculty of Science; Tanta University; Tanta Egypt
| | - Mohamed L. Salem
- Department of Zoology, Faculty of Science; Tanta University; Tanta Egypt
| | - Samar Elksass
- Department of Chemistry, Faculty of Science; Tanta University; Tanta Egypt
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Mehrotra S, Britten CD, Chin S, Garrett-Mayer E, Cloud CA, Li M, Scurti G, Salem ML, Nelson MH, Thomas MB, Paulos CM, Salazar AM, Nishimura MI, Rubinstein MP, Li Z, Cole DJ. Vaccination with poly(IC:LC) and peptide-pulsed autologous dendritic cells in patients with pancreatic cancer. J Hematol Oncol 2017; 10:82. [PMID: 28388966 PMCID: PMC5384142 DOI: 10.1186/s13045-017-0459-2] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Accepted: 03/30/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Dendritic cells (DCs) enhance the quality of anti-tumor immune response in patients with cancer. Thus, we posit that DC-based immunotherapy, in conjunction with toll-like receptor (TLR)-3 agonist poly-ICLC, is a promising approach for harnessing immunity against metastatic or locally advanced unresectable pancreatic cancer (PC). METHODS We generated autologous DCs from the peripheral blood of HLA-A2+ patients with PC. DCs were pulsed with three distinct A2-restricted peptides: 1) human telomerase reverse transcriptase (hTERT, TERT572Y), 2) carcinoembryonic antigen (CEA; Cap1-6D), and 3) survivin (SRV.A2). Patients received four intradermal injections of 1 × 107 peptide-pulsed DC vaccines every 2 weeks (Day 0, 14, 28, and 42). Concurrently, patients received intramuscular administration of Poly-ICLC at 30 μg/Kg on vaccination days (i.e., day 0, 14, 28, and 42), as well as on days 3, 17, 21, 31, 37, and 45. Our key objective was to assess safety and feasibility. The effect of DC vaccination on immune response was measured at each DC injection time point by enumerating the phenotype and function of patient T cells. RESULTS Twelve patients underwent apheresis: nine patients with metastatic disease, and three patients with locally advanced unresectable disease. Vaccines were successfully manufactured from all individuals. We found that this treatment was well-tolerated, with the most common symptoms being fatigue and/or self-limiting flu-like symptoms. Among the eight patients who underwent imaging on day 56, four patients experienced stable disease while four patients had disease progression. The median overall survival was 7.7 months. One patient survived for 28 months post leukapheresis. MHC class I -tetramer analysis before and after vaccination revealed effective generation of antigen-specific T cells in three patients with stable disease. CONCLUSION Vaccination with peptide-pulsed DCs in combination with poly-ICLC is safe and induces a measurable tumor specific T cell population in patients with advanced PC. TRIAL REGISTRATION NCT01410968 ; Name of registry: clinicaltrials.gov; Date of registration: 08/04/2011).
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Affiliation(s)
- Shikhar Mehrotra
- Department of Surgery, Medical University of South Carolina, 96 Jonathan Lucas Street, Charleston, SC, 29425, USA.
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, 29425, USA.
- Present address: Gibbs Cancer Center and Research Institute, 380 Serpentine Drive, Spartanburg, SC, 29303, USA.
| | - Carolyn D Britten
- Division of Hematology/Oncology, Department of Medicine, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Steve Chin
- Division of Hematology/Oncology, Department of Medicine, Medical University of South Carolina, Charleston, SC, 29425, USA
- Present address: Eli Lilly and Company, Lilly Corporate Center, Indianapolis, IN, 46285, USA
| | - Elizabeth Garrett-Mayer
- Departmet of Population Sciences, Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Colleen A Cloud
- Department of Surgery, Medical University of South Carolina, 96 Jonathan Lucas Street, Charleston, SC, 29425, USA
| | - Mingli Li
- Department of Surgery, Medical University of South Carolina, 96 Jonathan Lucas Street, Charleston, SC, 29425, USA
| | - Gina Scurti
- Department of Surgery, Medical University of South Carolina, 96 Jonathan Lucas Street, Charleston, SC, 29425, USA
- Department of Surgery, Loyola University Medical Center, Maywood, IL, 60153, USA
| | - Mohamed L Salem
- Center of Excellence in Cancer Research and Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Michelle H Nelson
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Melanie B Thomas
- Division of Hematology/Oncology, Department of Medicine, Medical University of South Carolina, Charleston, SC, 29425, USA
- Present address: Gibbs Cancer Center and Research Institute, 380 Serpentine Drive, Spartanburg, SC, 29303, USA
| | - Chrystal M Paulos
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Andres M Salazar
- Oncovir Inc., 3202 Cleaveland Avenue NW, Washington, DC, 20008, USA
| | - Michael I Nishimura
- Department of Surgery, Medical University of South Carolina, 96 Jonathan Lucas Street, Charleston, SC, 29425, USA
- Department of Surgery, Loyola University Medical Center, Maywood, IL, 60153, USA
| | - Mark P Rubinstein
- Department of Surgery, Medical University of South Carolina, 96 Jonathan Lucas Street, Charleston, SC, 29425, USA
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Zihai Li
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - David J Cole
- Department of Surgery, Medical University of South Carolina, 96 Jonathan Lucas Street, Charleston, SC, 29425, USA.
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, 29425, USA.
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Salem ML, Nassef M, Abdel Salam SGR, Zidan A, Mahmoud MH, Badr G, Rubinstein M, Cole D. Effect of administration timing of postchemotherapy granulocyte colony-stimulating factor on host-immune cell recovery and CD8 + T-cell response. J Immunotoxicol 2016; 13:784-792. [PMID: 27417188 PMCID: PMC5669798 DOI: 10.1080/1547691x.2016.1194917] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Granulocyte colony-stimulating factor (G-CSF), a hematopoietic growth factor, is a standard supportive therapy given during cancer treatment. It induces acceleration in neutrophil recovery through stimulation of mobilization of hematopoietic progenitors. Given that the latter is also induced by chemotherapy itself, the timing of administration of G-CSF postchemotherapy might impact the resultant overall effects. The present study aimed to determine the optimal timing of G-CSF postchemotherapy to exert its optimal effects on the immune cell recovery and its impact on antigen-specific CD8+ T-cell response. B6 mice were treated once with cyclophosphamide (4 mg/mouse; CTX) and then daily with G-CSF (5 g/mouse) from Days 1-5, 2-5 or 5-9 post-CTX treatment. The total numbers of various immune cell types were analyzed on Days 7, 9 and 12 post-CTX treatment. To evaluate effects on CD8+ T-cell response, a pmel-1 transgenic mouse model was used in combination with prime boost peptide vaccination therapy. The total number of white blood cells (WBC), neutrophils, monocytes, lymphocytes, granulocytes and dendritic cells (DC) were significantly increased after G-CSF treatment in particular when G-CSF was administered from Days 2-5 post-CTX treatment. Application of this timing of G-CSF and CTX treatment after adoptive transfer of T-cells followed by prime-boost vaccination with antigenic peptide did not block the expansion of the donor pmel-1 CD8+ T-cells. In conclusion, adjusting the timing of treatment with G-CSF postchemotherapy can optimize its promoting effects on recovery of myeloid cells without altering the associated antigen-specific immunity.
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Affiliation(s)
- Mohamed Labib Salem
- Immunology and Biotechnology Division, Zoology Department, Tanta University, Tanta, Egypt
- Center of Excellence in Cancer Research, Tanta University
| | - Mohamed Nassef
- Immunology and Biotechnology Division, Zoology Department, Tanta University, Tanta, Egypt
| | - Soha G. R. Abdel Salam
- Immunology and Biotechnology Division, Zoology Department, Tanta University, Tanta, Egypt
| | | | - Mohamed H. Mahmoud
- Deanship of Scientific Research, King Saud University, Riyadh, Saudi Arabia
- Food Science and Nutrition Department, National Research Center, Dokki, Cairo, Egypt
| | - Gamal Badr
- Laboratory of Immunology and Molecular Biology, Zoology Department, Faculty of Science, Assiut University, Assiut, Egypt
| | - Mark Rubinstein
- Surgery Department and Hollings Cancer Center, Medical University of South Carolina, Charleston, SC
| | - David Cole
- Surgery Department and Hollings Cancer Center, Medical University of South Carolina, Charleston, SC
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Ismail AM, Abdou SM, Aty HA, Kamhawy AH, Elhinedy M, Elwageh M, Taha A, Ezzat A, Salem HA, Youssif S, Salem ML. Autologous transplantation of CD34(+) bone marrow derived mononuclear cells in management of non-reconstructable critical lower limb ischemia. Cytotechnology 2016; 68:771-81. [PMID: 25511801 PMCID: PMC4960127 DOI: 10.1007/s10616-014-9828-7] [Citation(s) in RCA: 10] [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: 12/29/2013] [Accepted: 11/19/2014] [Indexed: 02/07/2023] Open
Abstract
Patients with a decrease in limb perfusion with a potential threat to limb viability manifested by ischemic rest pain, ischemic ulcers, and/or gangrene are considered to have critical limb ischemia (CLI). Because of this generally poor outcome, there is a strong need for attempting any procedure to save the affected limb. The aim of this work is to evaluate the possibility to use stem cell therapy as a treatment option for patients with chronic critical lower limb ischemia with no distal run off. This study includes 20 patients with chronic critical lower limb ischemia with no distal run off who are unsuitable for vascular or endovascular option. These patients underwent stem cell therapy (SCT) by autologous transplantation of bone marrow derived mononuclear cells. 55 % of patients treated with SCT showed improvement of the rest pain after the first month, 60 % continued improvement of the rest pain after 6 months, 75 % after 1 year and 80 % after 2 years and continued without any deterioration till the third year. Limb salvage rate after STC was 80 % after the first year till the end of the second and third years. SCT can result in angiogenesis in patients with no-option CLI, providing a foundation for the application of this therapy to leg ischemia.
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Affiliation(s)
| | - Said M Abdou
- Clinical Pathology Department, Tanta University, Tanta, Egypt
| | | | | | | | | | - Atef Taha
- Internal Medicine Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Amal Ezzat
- Clinical Pathology Department, Tanta University, Tanta, Egypt
| | - Hoda A Salem
- Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Said Youssif
- Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Mohamed L Salem
- Immunology and Biotechnology Unit, Zoology Department, Faculty of Science, Center of Excellence in Cancer Research, Tanta University, Tanta, Egypt.
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Salahuddin N, Elbarbary AA, Salem ML, Elksass S. Effect of loading 5-phenyl-4H-1,2,4-triazole-3-thiol onto polypyrrole chitosan core shell nanoparticles on release rate, antimicrobial, and antitumor activities. J BIOACT COMPAT POL 2016. [DOI: 10.1177/0883911516658781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Polypyrrole chitosan core shell nanoparticles were synthesized by in situ oxidation polymerization of pyrrole using FeCl3 in chitosan aqueous solution. 5-Phenyl-4H-1,2,4-triazole-3-thiol (I) was prepared and loaded into polypyrrole chitosan core shell nanoparticles at two different temperatures (25°C and 80°C). These core shell nanoparticle systems are insoluble in acidic medium and have good adsorption capacity. The release of loaded triazole was studied in different pH media (2, 7.4). The mechanism of triazole release was determined by applying zero-order release, first-order release, Higuchi model, Hixson–Crowell, and Korsmeyer–Peppas kinetics equations. The antibacterial activities against Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, and Staphylococcus epidermidis were evaluated. The potential cytotoxicity against Ehrlich ascites carcinoma cells and liver (HEPG2) cell line in vitro was tested.
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Affiliation(s)
- Nehal Salahuddin
- Department of Chemistry, Faculty of Science, Tanta University, Tanta, Egypt
| | - Ahmed A Elbarbary
- Department of Chemistry, Faculty of Science, Tanta University, Tanta, Egypt
| | - Mohamed L Salem
- Department of Zoology, Faculty of Science, Tanta University, Tanta, Egypt
| | - Samar Elksass
- Department of Chemistry, Faculty of Science, Tanta University, Tanta, Egypt
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Salem ML, Shoukry NM, Teleb WK, Abdel-Daim MM, Abdel-Rahman MA. In vitro and in vivo antitumor effects of the Egyptian scorpion Androctonus amoreuxi venom in an Ehrlich ascites tumor model. Springerplus 2016; 5:570. [PMID: 27247867 PMCID: PMC4864766 DOI: 10.1186/s40064-016-2269-3] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 05/03/2016] [Indexed: 02/07/2023]
Abstract
Scorpion venom is a highly complex mixture of about 100-700 different components, where peptides are the major constituents with various biological and pharmacological properties including anticancer activities. In this study, anticancer efficacy of the venom of the Egyptian scorpion Androctonus amoreuxi has been evaluated. In vitro, the human breast cancer MCF-7 cell line was treated with the venom and the IC50 was estimated. In vivo studies, Ehrlich ascites carcinoma (EAC) cells were inoculated into CD-1 mice intraperitoneally to form liquid tumor or subcutaneously to form solid tumor and then treated with intraperitoneal injection with venom (0.22 mg/kg) every other day. The total tumor cells in the ascitic fluid and the size of the solid tumor were assessed after 14 and 30 days, respectively. In addition, the mean survival time (MST), body weight, tumor volume, PCV, viability of tumor cells, CBC, AST, ALP, creatinine, oxidative stress biomarkers (GSH, MDA, PCC), tumor marker Ki67, growth factor VEGF and caspase-3 were measured in normal control, EAC control and venom-treated groups (n = 6). Treatment with venom induced anti-tumor effects against liquid and in solid tumors as indicated by a significant (P < 0.05) reduction in tumor volume/size, count of viable EAC cells, expression of Ki67 and VEGF as well as by remarkable increases in MST and caspase-3 expression as compared to non-treated group. Interestingly, the venom restored the altered hematological and biochemical parameters of tumor-bearing animals and significantly increased their life span. These data indicate to (1) the cytotoxic potential effects of A. amoreuxi on tumor cells via anti-proliferative, apoptotic and anti-angiogenic activities; (2) opening a new avenue for further studies on the anti-cancer effects of this agent.
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Affiliation(s)
- Mohamed L. Salem
- />Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Nahla M. Shoukry
- />Zoology Department, Faculty of Science, Suez University, Suez, Egypt
| | - Wafaa K. Teleb
- />Zoology Department, Faculty of Science, Suez University, Suez, Egypt
| | - Mohamed M. Abdel-Daim
- />Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, 41522 Egypt
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El-Mahdy N, Salem ML, El-Sayad M, El-Desouky KI, Zaghow N. Bone marrow mononuclear cells enhance anti-inflammatory effects of pravastatin against isoproterenol-induced myocardial infarction in rats. J Immunotoxicol 2016; 13:393-402. [PMID: 26606075 DOI: 10.3109/1547691x.2015.1111959] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The current study investigated the combinatorial effect of pravastatin (PRAV) and bone marrow mononuclear cells (BM-MNC) on acute myocardial infarction (AMI) induced experimentally in rats. After induction of MI, rats were given oral PRAV (20 mg/kg/day) for 28 days or a bolus intravenous injection (via lateral vein) of a total of 14 × 10(6) autologous BM-MNC or a combination of both. Serum brain natriuretic peptide (BNP) and histologic changes in cardiac tissues were assessed. Cardiac contents of lipid peroxides, superoxide dismutase (SOD) and inflammatory biomarkers including tumor necrosis factor (TNF)-α and interleukin (IL)-1β as well as vascular endothelial growth factor (VEGF) and nitric oxide (NO) were also measured. Combined PRAV and BM-MNC treatment significantly suppressed serum BNP. Cardiac cell apoptosis and inflammatory cell infiltration in heart tissue decreased significantly in both the PRAV and the PRAV + BM-MNC groups. Cardiac lipid peroxides along with TNFα and IL-1β levels were significantly reduced in both the PRAV and PRAV + BM-MNC hosts with an increase in SOD levels. However, the combined treatment increased cardiac NO levels and did not modify cardiac VEGF levels. The current results indicated that administration of BM-MNC improved the therapeutic efficacy of PRAV treatment by improving the morphology of infarcted hearts as well as decreasing inflammation in a host, but did not do so by inducing therapeutic angiogenesis.
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Affiliation(s)
- Nageh El-Mahdy
- a Pharmacology and Toxicology Department, Faculty of Pharmacy , Tanta University , Tanta , Egypt
| | - Mohamed L Salem
- b Zoology Department, Faculty of Science, Immunology and Biotechnology Unit, Immunology and Biotechnology Division , Center of Excellence in Cancer Research, Tanta University , Tanta , Egypt
| | - Magda El-Sayad
- a Pharmacology and Toxicology Department, Faculty of Pharmacy , Tanta University , Tanta , Egypt
| | - Karima I El-Desouky
- c Pathology Department, Faculty of Medicine , Tanta University , Tanta , Egypt
| | - Nesma Zaghow
- a Pharmacology and Toxicology Department, Faculty of Pharmacy , Tanta University , Tanta , Egypt
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Salem ML, Attia ZI, Galal SM. Acute inflammation induces immunomodulatory effects on myeloid cells associated with anti-tumor responses in a tumor mouse model. J Adv Res 2016; 7:243-53. [PMID: 26966565 PMCID: PMC4767798 DOI: 10.1016/j.jare.2015.06.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [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: 03/27/2015] [Revised: 05/13/2015] [Accepted: 06/04/2015] [Indexed: 02/07/2023] Open
Abstract
Given the self nature of cancer, anti-tumor immune response is weak. As such, acute inflammation induced by microbial products can induce signals that result in initiation of an inflammatory cascade that helps activation of immune cells. We aimed to compare the nature and magnitude of acute inflammation induced by toll-like receptor ligands (TLRLs) on the tumor growth and the associated inflammatory immune responses. To induce acute inflammation in tumor-bearing host, CD1 mice were inoculated with intraperitoneal (i.p.) injection of Ehrlich ascites carcinoma (EAC) (5 × 10(5) cells/mouse), and then treated with i.p. injection on day 1, day 7 or days 1 + 7 with: (1) polyinosinic:polycytidylic (poly(I:C)) (TLR3L); (2) Poly-ICLC (clinical grade of TLR3L); (3) Bacillus Calmette Guerin (BCG) (coding for TLR9L); (4) Complete Freund's adjuvant (CFA) (coding for TLR9L); and (5) Incomplete Freund's Adjuvant (IFA). Treatment with poly(I:C), Poly-ICLC, BCG, CFA, or IFA induced anti-tumor activities as measured by 79.1%, 75.94%, 73.94%, 71.88% and 47.75% decreases, respectively in the total number of tumor cells collected 7 days after tumor challenge. Among the tested TLRLs, both poly(I:C) (TLR3L) and BCG (contain TLR9L) showed the highest anti-tumor effects as reflected by the decrease in the number of EAc cells. These effects were associated with a 2-fold increase in the numbers of inflammatory cells expressing the myeloid markers CD11b(+)Ly6G(+), CD11b(+)Ly6G(-), and CD11b(+)Ly6G(-). We concluded that Provision of the proper inflammatory signal with optimally defined magnitude and duration during tumor growth can induce inflammatory immune cells with potent anti-tumor responses without vaccination.
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Affiliation(s)
- Mohamed L. Salem
- Immunology and Biotechnology Unit, Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt
- Center of Excellence in Cancer Research, Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt
- Corresponding author. Tel.: +20 1274272624.
| | - Zeinab I. Attia
- Physiology Unit, Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Sohaila M. Galal
- Physiology Unit, Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt
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Salem ML, Kholy SE, Al-Atrash A, Samy D. Tumor burden and cisplatin treatment alters the expression levels of microRNA-146a and -155 in spleen and cancer cells in an experimental mouse model of Ehrlich ascite carcinoma. JST 2016. [DOI: 10.5430/jst.v6n1p78] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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El-Ashmawy N, El-Zamarany E, Salem M, El-Bahrawy H, Al-Ashmawy G. In vitro and in vivo studies of the immunomodulatory effect of Echinacea purpurea on dendritic cells. J Genet Eng Biotechnol 2015; 13:185-192. [PMID: 30647582 PMCID: PMC6299863 DOI: 10.1016/j.jgeb.2015.05.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [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: 01/18/2015] [Revised: 04/18/2015] [Accepted: 05/15/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND Extracts of Echinacea have been used traditionally for the treatment of diverse types of infections and wounds. They have become very familiar immunostimulant herbal medicine. However, the specific immunomodulatory effect of Echinacea remains to be elucidated. AIM In our study, the effect of Echinacea purpurea extract on the generation of immature DCs from monocytes was described, as well as its effect on DC differentiation. In addition, an in vivo experiment was conducted to investigate whether treatment of mice with extracts derived from E. purpurea has immunomodulatory effect on murine splenic DCs. METHODS Immature DCs were generated by incubating peripheral blood monocytes with cytokine cocktail (GM-CSF + IL-4) and matured by tumor necrosis factor-α (TNF-α). The cells were randomized to 5 groups to investigate E. purpurea effect in different stages. Phenotypic analysis of cell marker CD83-expressed on DCs was performed by flow cytometry. Mice were randomly divided into 3 groups; control, E. purpurea treated and E. purpurea-TNF-α treated group. The murine splenic DCs were isolated and phenotyped for CD83 and CD11c by flow cytometry. RESULTS Treatment of monocytes with E. purpurea prior to addition of the maturation factor TNF-α resulted in a significant decrease in the yield of DC expressing CD83. On the other hand, immature DCs generated in the culture in the presence of GM-CSF and IL-4, when treated simultaneously with E. purpurea and TNF-α, exhibited an insignificant change in the yield of CD83-expressing DCs compared with untreated control. The in vivo experiments showed that splenic DCs obtained from mice treated with E. purpurea with or without TNF-α did not exhibit significant changes in CD83 or CD11c compared with those obtained from control mice. CONCLUSION Our findings suggest that the immunomodulatory mechanisms of E. purpurea impact generation fate of DCs rather than differentiation stages. The results obtained in the in vivo study utilizing murine splenic DCs supported those observed in vitro.
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Affiliation(s)
- N.E. El-Ashmawy
- Department of Biochemistry, Faculty of Pharmacy, Tanta University, Egypt
| | - E.A. El-Zamarany
- Department of Clinical Pathology, Faculty of Medicine, Tanta University, Egypt
| | - M.L. Salem
- Department of Immunology, Faculty of Science, Tanta University, Egypt
| | - H.A. El-Bahrawy
- Department of Biochemistry, Faculty of Pharmacy, Tanta University, Egypt
| | - G.M. Al-Ashmawy
- Department of Biochemistry, Faculty of Pharmacy, Tanta University, Egypt
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