Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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NOT_YET_RECRUITING
56 participants
OBSERVATIONAL
2024-02-01
2025-04-01
Brief Summary
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2. Assess the role of NK cells in development of drug resistance post chemotherapy.
Detailed Description
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ALL is categorized in B-Lymphoblastic Leukemia (B-ALL) And T-Lymphoblastic Leukemia (T-ALL), originated from B- and T-Lineage lymphoid precursor cells, respectively (Chiaretti S et al, 2014).
Recent progress in treatment of ALL has increased the survival rate significantly. The 5-year survival rate in children with ALL is approximately 90% (Paul 2016).
Bloodstream infection is a major cause of treatment-related morbidity and mortality in pediatric patients treated for acute lymphoblastic leukemia (Wolf, Tang et al. 2017).
This is caused by severe and prolonged immunosuppression due to neutropenia, and other chemotherapy-induced alterations of host defense mechanisms The rise of multidrug-resistant bacteria has generated a great challenge to treat infections caused by bacteria with the available antibiotics One of the crucial first line of defense against bloodstream infections in the immune system are Natural Killer cells Natural killer (NK) cells are lymphocytes of the innate immune system that are critical in host defense and immune regulation They can mediate spontaneous cytotoxicity towards malignant cells and microbes, and rapidly secrete numerous cytokines and chemokines to promote subsequent adaptive immune responses
NK cells can be subdivided into different populations based on the relative expression of the surface markers CD16 and CD56
Conditions
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Keywords
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Study Design
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CASE_CONTROL
PROSPECTIVE
Interventions
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Flow cytometry
1. Profiling of NK cells using flow cytometry on peripheral blood and bone marrow aspirate samples.
2. Isolation and identification of pathogens causing BSI and bacterial drug susceptibility testing using VITEK compact fully automatic microbial identification instrument.
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
2. Presence of other hematological malignancies or history of other malignancies.
0 Years
17 Years
ALL
Yes
Sponsors
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Assiut University
OTHER
Responsible Party
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Mostafa Sayed Mohamed Ahmed
MSMohamedAhmed
Principal Investigators
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Shaimaa G Mansour, Professor
Role: STUDY_CHAIR
South Egypt Cancer Institure, Assiut, Egypt
Eman M Abdel Rahman, Lecturer
Role: STUDY_CHAIR
Assiut University
Central Contacts
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References
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Ammann RA, Laws HJ, Schrey D, Ehlert K, Moser O, Dilloo D, Bode U, Wawer A, Schrauder A, Cario G, Laengler A, Graf N, Furtwangler R, Simon A. Bloodstream infection in paediatric cancer centres--leukaemia and relapsed malignancies are independent risk factors. Eur J Pediatr. 2015 May;174(5):675-86. doi: 10.1007/s00431-015-2525-5. Epub 2015 Mar 26.
Bayatipoor H, Mehdizadeh S, Jafarpour R, Shojaei Z, Pashangzadeh S, Motallebnezhad M. Role of NKT cells in cancer immunotherapy-from bench to bed. Med Oncol. 2022 Dec 2;40(1):29. doi: 10.1007/s12032-022-01888-5.
Bi J, Tian Z. NK Cell Exhaustion. Front Immunol. 2017 Jun 28;8:760. doi: 10.3389/fimmu.2017.00760. eCollection 2017.
Campbell KS, Hasegawa J. Natural killer cell biology: an update and future directions. J Allergy Clin Immunol. 2013 Sep;132(3):536-544. doi: 10.1016/j.jaci.2013.07.006. Epub 2013 Jul 30.
Fujita TC, Sousa-Pereira N, Amarante MK, Watanabe MAE. Acute lymphoid leukemia etiopathogenesis. Mol Biol Rep. 2021 Jan;48(1):817-822. doi: 10.1007/s11033-020-06073-3. Epub 2021 Jan 13.
Gupta DG, Varma N, Naseem S, Sachdeva MUS, Bose P, Binota J, Kumar A, Gupta M, Rana P, Sonam P, Malhotra P, Trehan A, Khadwal A, Varma S. Characterization of Immunophenotypic Aberrancies with Respect to Common Fusion Transcripts in B-Cell Precursor Acute Lymphoblastic Leukemia: A Report of 986 Indian Patients. Turk J Haematol. 2022 Feb 23;39(1):1-12. doi: 10.4274/tjh.galenos.2021.2021.0326. Epub 2021 Oct 7.
Karaman R, Jubeh B, Breijyeh Z. Resistance of Gram-Positive Bacteria to Current Antibacterial Agents and Overcoming Approaches. Molecules. 2020 Jun 23;25(12):2888. doi: 10.3390/molecules25122888.
Littera R, Chessa L, Deidda S, Angioni G, Campagna M, Lai S, Melis M, Cipri S, Firinu D, Santus S, Lai A, Porcella R, Rassu S, Meloni F, Schirru D, Cordeddu W, Kowalik MA, Ragatzu P, Vacca M, Cannas F, Alba F, Carta MG, Del Giacco S, Restivo A, Deidda S, Palimodde A, Congera P, Perra R, Orru G, Pes F, Loi M, Murru C, Urru E, Onali S, Coghe F, Giglio S, Perra A. Natural killer-cell immunoglobulin-like receptors trigger differences in immune response to SARS-CoV-2 infection. PLoS One. 2021 Aug 5;16(8):e0255608. doi: 10.1371/journal.pone.0255608. eCollection 2021.
Lodoen MB, Lanier LL. Natural killer cells as an initial defense against pathogens. Curr Opin Immunol. 2006 Aug;18(4):391-8. doi: 10.1016/j.coi.2006.05.002. Epub 2006 Jun 12.
Matthiesen S, Zaeck L, Franzke K, Jahnke R, Fricke C, Mauermeir M, Finke S, Luhrmann A, Knittler MR. Coxiella burnetii-Infected NK Cells Release Infectious Bacteria by Degranulation. Infect Immun. 2020 Oct 19;88(11):e00172-20. doi: 10.1128/IAI.00172-20. Print 2020 Oct 19.
Other Identifiers
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NK cells for infection in ALL
Identifier Type: -
Identifier Source: org_study_id