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Whittaker TE, Moula SE, Bahal S, Bakri FG, Hayajneh WA, Daoud AK, Naseem A, Cavazza A, Thrasher AJ, Santilli G. Multidimensional Response Surface Methodology for the Development of a Gene Editing Protocol for p67 phox-Deficient Chronic Granulomatous Disease. Hum Gene Ther 2024; 35:298-312. [PMID: 38062734 PMCID: PMC7615834 DOI: 10.1089/hum.2023.114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024] Open
Abstract
Replacing a faulty gene with a correct copy has become a viable therapeutic option as a result of recent progress in gene editing protocols. Targeted integration of therapeutic genes in hematopoietic stem cells has been achieved for multiple genes using Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)/Cas9 system and Adeno-Associated Virus (AAV) to carry a donor template. Although this is a promising strategy to correct genetic blood disorders, it is associated with toxicity and loss of function in CD34+ hematopoietic stem and progenitor cells, which has hampered clinical application. Balancing the maximum achievable correction against deleterious effects on the cells is critical. However, multiple factors are known to contribute, and the optimization process is laborious and not always clearly defined. We have developed a flexible multidimensional Response Surface Methodology approach for optimization of gene correction. Using this approach, we could rapidly investigate and select editing conditions for CD34+ cells with the best possible balance between correction and cell/colony-forming unit (CFU) loss in a parsimonious one-shot experiment. This method revealed that using relatively low doses of AAV2/6 and CRISPR/Cas9 ribonucleoprotein complex, we can preserve the fitness of CD34+ cells and, at the same time, achieve high levels of targeted gene insertion. We then used these optimized editing conditions for the correction of p67phox-deficient chronic granulomatous disease (CGD), an autosomal recessive disorder of blood phagocytic cells resulting in severe recurrent bacterial and fungal infections and achieved rescue of p67phox expression and functional correction of CD34+-derived neutrophils from a CGD patient.
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Affiliation(s)
- Thomas E. Whittaker
- Infection, Immunity and Inflammation Teaching and Research Department, Great Ormond Street Institute of Child Health, University College London, United Kingdom
| | - Shefta E Moula
- Infection, Immunity and Inflammation Teaching and Research Department, Great Ormond Street Institute of Child Health, University College London, United Kingdom
| | - Sameer Bahal
- Infection, Immunity and Inflammation Teaching and Research Department, Great Ormond Street Institute of Child Health, University College London, United Kingdom
| | - Faris Ghalib Bakri
- Division of Infectious Diseases, Department of Medicine, Jordan University Hospital, Amman, Jordan
- Infectious Diseases and Vaccine Center, University of Jordan, Amman, Jordan
| | - Wail Ahmad Hayajneh
- Division of Infectious Diseases, Department of Pediatrics, Jordan University of Science & Technology, Irbid, Jordan
| | - Ammar Khaled Daoud
- Division of Immunology, Department of Internal Medicine, Jordan University of Science & Technology, Irbid, Jordan
| | - Asma Naseem
- Infection, Immunity and Inflammation Teaching and Research Department, Great Ormond Street Institute of Child Health, University College London, United Kingdom
| | - Alessia Cavazza
- Infection, Immunity and Inflammation Teaching and Research Department, Great Ormond Street Institute of Child Health, University College London, United Kingdom
| | - Adrian J Thrasher
- Infection, Immunity and Inflammation Teaching and Research Department, Great Ormond Street Institute of Child Health, University College London, United Kingdom
- NIHR Great Ormond Street Hospital Biomedical Research Centre, London, United Kingdom
| | - Giorgia Santilli
- Infection, Immunity and Inflammation Teaching and Research Department, Great Ormond Street Institute of Child Health, University College London, United Kingdom
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Bakri FG, Mollin M, Beaumel S, Vigne B, Roux-Buisson N, Al-Wahadneh AM, Alzyoud RM, Hayajneh WA, Daoud AK, Shukair MEA, Karadshe MF, Sarhan MM, Al-Ramahi JAW, Fauré J, Rendu J, Stasia MJ. Second Report of Chronic Granulomatous Disease in Jordan: Clinical and Genetic Description of 31 Patients From 21 Different Families, Including Families From Lybia and Iraq. Front Immunol 2021; 12:639226. [PMID: 33746979 PMCID: PMC7973097 DOI: 10.3389/fimmu.2021.639226] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 02/08/2021] [Indexed: 11/13/2022] Open
Abstract
Chronic granulomatous Disease (CGD) is a rare innate immunodeficiency disorder caused by mutations in one of the six genes (CYBA, CYBB, NCF1, NCF2, NCF4, and CYBC1/EROS) encoding the superoxide-producing nicotinamide adenine dinucleotide phosphate (NADPH)—oxidase complex in phagocytes. In the Western population, the most prevalent form of CGD (about two-thirds of all cases) is the X-linked form (X-CGD) caused by mutations in CYBB. The autosomal recessive forms (AR-CGD), due to mutations in the other genes, collectively account for the remaining one-third of CGD cases. We investigated the clinical and molecular features of 22 Jordanian, 7 Libyan, and 2 Iraqi CGD patients from 21 different families. In addition, 11 sibling patients from these families were suspected to have been died from CGD as suggested by their familial and clinical history. All patients except 9 were children of consanguineous parents. Most of the patients suffered from AR-CGD, with mutations in CYBA, NCF1, and NCF2, encoding p22phox, p47phox, and p67phox proteins, respectively. AR-CGD was the most frequent form, in Jordan probably because consanguineous marriages are common in this country. Only one patient from non-consanguineous parents suffered from an X910 CGD subtype (0 indicates no protein expression). AR670 CGD and AR220 CGD appeared to be the most frequently found sub-types but also the most severe clinical forms compared to AR470 CGD. As a geographical clustering of 11 patients from eight Jordanian families exhibited the c.1171_1175delAAGCT mutation in NCF2, segregation analysis with nine polymorphic markers overlapping NCF2 indicates that a common ancestor has arisen ~1,075 years ago.
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Affiliation(s)
- Faris Ghalib Bakri
- Division of Infectious Diseases, Department of Medicine, Jordan University Hospital, Amman, Jordan.,Infectious Diseases and Vaccine Center, University of Jordan, Amman, Jordan
| | - Michelle Mollin
- Centre Hospitalier Universitaire Grenoble Alpes, Pôle de Biologie, Chronic Granulomatous Disease Diagnosis and Research Centre (CDiReC), Grenoble, France
| | - Sylvain Beaumel
- Centre Hospitalier Universitaire Grenoble Alpes, Pôle de Biologie, Chronic Granulomatous Disease Diagnosis and Research Centre (CDiReC), Grenoble, France
| | - Bénédicte Vigne
- Centre Hospitalier Universitaire Grenoble Alpes, Pôle de Biologie, Chronic Granulomatous Disease Diagnosis and Research Centre (CDiReC), Grenoble, France
| | - Nathalie Roux-Buisson
- Centre Hospitalier Universitaire Grenoble Alpes, Pôle de Biologie, Laboratoire de Biochimie et Génétique Moléculaire, La Tronche, France.,Université Grenoble Alpes, Inserm U1216, Grenoble Institut Neurosciences, Grenoble, France
| | | | - Raed Mohammed Alzyoud
- Division of Immunology, Department of Pediatrics, Queen Rani Children's Hospital, Amman, Jordan
| | - Wail Ahmad Hayajneh
- Division of Infectious Diseases, Department of Pediatrics, Jordan University of Science & Technology, Irbid, Jordan
| | - Ammar Khaled Daoud
- Division of Immunology, Jordan University of Science & Technology, Irbid, Jordan
| | | | | | | | | | - Julien Fauré
- Centre Hospitalier Universitaire Grenoble Alpes, Pôle de Biologie, Laboratoire de Biochimie et Génétique Moléculaire, La Tronche, France.,Université Grenoble Alpes, Inserm U1216, Grenoble Institut Neurosciences, Grenoble, France
| | - John Rendu
- Centre Hospitalier Universitaire Grenoble Alpes, Pôle de Biologie, Laboratoire de Biochimie et Génétique Moléculaire, La Tronche, France.,Université Grenoble Alpes, Inserm U1216, Grenoble Institut Neurosciences, Grenoble, France
| | - Marie Jose Stasia
- Centre Hospitalier Universitaire Grenoble Alpes, Pôle de Biologie, Chronic Granulomatous Disease Diagnosis and Research Centre (CDiReC), Grenoble, France.,Université Grenoble Alpes, Commissariat à l'Energie Atomique (CEA), Centre National de la Recherche Scientifique (CNRS), Institut de Biologie Structurale (IBS), Grenoble, France
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Obaidat MM, Alshehabat MA, Hayajneh WA, Roess AA. Seroprevalence, spatial distribution and risk factors of Borrelia burgdorferi sensu lato in Jordan. Comp Immunol Microbiol Infect Dis 2020; 73:101559. [PMID: 33086189 DOI: 10.1016/j.cimid.2020.101559] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 10/01/2020] [Accepted: 10/07/2020] [Indexed: 11/27/2022]
Abstract
Lyme borreliosis has not been studied in Jordan or in much of the Middle East. However, limited research indicates that the tick vector, Ixodes ricinus, exists in the region. This study examined the seroprevalence of B. burgdorferi s.l. in Jordan and potential demographic and zoonotic risk factors for seropositivity. Serum samples of 824 apparently healthy participants from 11 governorates in Jordan were tested for B. burgdorferi s.l. using Enzygnost Lyme link VlsE/IgG enzyme-linked immunosorbent assay. A validated questionnaire was used to collect demographic and animal exposure data. Univariate and multivariate logistic regression were used to identify factors associated with seropositivity. The results showed that 11.7 % (95 % CI, 9.3-14.0 %) of the participants were seropositive for B. burgdorferi s.l.. There was a bimodal age distribution of seroprevalence with higher seroprevalence among individuals <20 and>60 years old. After controlling for governorate of residence, females had 2.77 (95 % CI 1.53-5.00) times greater odds of seropositivity compared to males. Individuals living in the southeastern part of Jordan (Ma'an) had 2.32 (95 % CI, 1.02-5.31) greater odds of seropositivity compared to those living in Amman, the Capital of Jordan, while those living in the northeast had significantly lower odds of seropositivity. This study presents the first evidence of B. burgdorferi s.l. seropositivity in Jordan and suggests several risk factors which were reported in studies conducted elsewhere. This study suggests that Lyme borreliosis should be considered in the differential diagnosis for patients presenting with skin lesions in Jordan.
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Affiliation(s)
- M M Obaidat
- Department of Veterinary Pathology and Public Health, Faculty of Veterinary Medicine, Jordan University of Science and Technology, Irbid, 22110, Jordan.
| | - M A Alshehabat
- Department of Veterinary Clinical Sciences, Faculty of Veterinary Medicine, Jordan University of Science and Technology, Irbid, 22110, Jordan
| | - W A Hayajneh
- School of Medicine, Jordan University of Science and Technology, Irbid, 22110, Jordan
| | - A A Roess
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington D.C, USA; Department of Global and Community Health, College of Health and Human Services, George Mason University, Fairfax, VA, USA
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Al Kaabi N, Al Olama FMAS, Al Qaseer M, Al Ubaidani I, Dinleyici EC, Hayajneh WA, Bizri AR, Loulou M, Ndao T, Wolfson LJ. The clinical and economic burden of varicella in the Middle East: a systematic literature review. Hum Vaccin Immunother 2019; 16:21-32. [PMID: 31373864 PMCID: PMC7012098 DOI: 10.1080/21645515.2019.1638726] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
This systematic literature review was conducted to better understand the epidemiology and burden of varicella across the Middle East, gain insight into the evidence to support using universal varicella vaccination (UVV), and identify potential data gaps. Both epidemiology and economic data on the burden of varicella were limited and varied significantly. Most of the data focussed on varicella burden in the absence of a UVV program. In the absence of UVV, varicella incidence is increasing across this region with varicella infection associated with substantial morbidity. Although limited, data on the impact of vaccination at a population level indicated UVV programs reduce varicella incidence and hospitalizations, in line with global experience. Further research and action are needed to better understand varicella epidemiology in the Middle East, increase awareness and understanding in the region, and provide local data to support national public-health decisions regarding the implementation of UVV programs.
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Affiliation(s)
- Nawal Al Kaabi
- Department of Pediatrics, Sheikh Khalifa Medical City, Abu Dhabi, UAE
| | | | | | - Idris Al Ubaidani
- Department of Communicable Disease Surveillance & Control, Directorate General of Health Affairs, Ministry of Health HQ, Muscat, Sultanate of Oman
| | - Ener Cagri Dinleyici
- Department of Pediatrics, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, Turkey
| | - Wail Ahmad Hayajneh
- Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - Abdul Rahman Bizri
- Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | | | | | - Lara J Wolfson
- Merck & Co., Inc. Center for Observational and Real-World Evidence (CORE), Kenilworth, NJ, USA
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Swedan SF, Hayajneh WA, Bshara GN. Genotyping and serotyping of macrolide and multidrug resistant Streptococcus pneumoniae isolated from carrier children. Indian J Med Microbiol 2016; 34:159-65. [PMID: 27080766 DOI: 10.4103/0255-0857.176840] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AIMS Streptococcus pneumoniae, an opportunistic pathogen commonly carried asymptomatically in the nasopharynx of children, is associated with increasing rates of treatment failures due to a worldwide increase in drug resistance. We investigated the carriage of S. pneumoniae in children 5 years or younger, the identity of prevalent serotypes, the rates of resistance to macrolides and other antimicrobial agents and the genotypes responsible for macrolide resistance. MATERIALS AND METHODS Nasopharyngeal swabs were collected from 157 children under 5 years for cultural isolation of S. pneumoniae. Antibiogram of isolates was determined using the disk diffusion test, and the minimal inhibitory concentration to macrolides was determined using the E-test. Isolate serotypes and macrolide resistance genes, erm(B) and mef(E), were identified using multiplex polymerase chain reactions. RESULTS S. pneumoniae was recovered from 33.8% of children; 41.9% among males and 21.9% among females (P = 0.009). The highest carriage rate occurred among age groups 7-12 months and 49-60 months. Most frequent serotypes were 19F, 6A/B, 11A, 19A, 14 and 15B/C. Resistance to macrolides was 60.4%. Resistance to oxacillin, trimethoprim/sulfamethoxazole and clindamycin was present among 90.6%, 54.7% and 32.1% of isolates, respectively. All isolates were susceptible to chloramphenicol, levofloxacin and vancomycin. Isolates resistant to one or more macrolide drugs were more likely to be multidrug resistant. Resistance to clindamycin or oxacillin coexisted with macrolide resistance. Among the erythromycin-resistant isolates, erm(B), mef(E) and erm(B) and mef(E) genes were present at rates of 43.8%, 37.5% and 6.3%, respectively. Erm(B) and mef(E) were associated with very high level and moderate-to-high level resistance to macrolides, respectively. CONCLUSION A significant proportion of children harboured macrolide and multidrug-resistant S. pneumoniae.
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Affiliation(s)
- S F Swedan
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid 22110, Jordan
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Khassawneh M, Hayajneh WA, Kofahi H, Khader Y, Amarin Z, Daoud A. Diagnostic markers for neonatal sepsis: comparing C-reactive protein, interleukin-6 and immunoglobulin M. Scand J Immunol 2007; 65:171-5. [PMID: 17257222 DOI: 10.1111/j.1365-3083.2006.01878.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
This clinical study was conducted to evaluate the diagnostic value of C-reactive protein (CRP), interlekin-6 (IL-6) and immunoglobulin M (IgM) in the early diagnosis of neonatal sepsis. The diagnostic values of each marker separately or in combinations were evaluated. The optimal cut-off values of each marker in the diagnosis of neonatal sepsis were defined. Between December 2004 and March 2005, a total of 78 neonates at different ages with different diagnoses in a neonatal intensive care unit in North Jordan were enrolled. Patients were classified into 'sepsis' group, 'probable sepsis' group and 'no sepsis' group. Blood samples were collected for CRP, IL-6 and IgM determination. A CRP value of 5 mg/l was the best among the three parameters with 95% sensitivity and 98% negative predictive value. Combination between parameters was helpful in enhancing the ability to diagnose sepsis. The best combination was CRP > or = 5 mg/l and/or IgM of > or =20 mg/dl. We conclude that CRP, IL-6 and IgM are helpful in the early diagnosis of Gram-negative neonatal sepsis. However, CRP continues to be the best single test. The use of both CRP and IgM in combination was the most helpful in predicting Gram-negative neonatal sepsis. We speculate a significant role of this combination in making decisions regarding antibiotics treatment and upgrading the level of medical care and observation in a setting where Gram-negative micro-organisms are causing the majority of neonatal infections.
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Affiliation(s)
- M Khassawneh
- Department of Pediatrics, Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan
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Hayajneh WA, Colberg-Poley AM, Skaletskaya A, Bartle LM, Lesperance MM, Contopoulos-Ioannidis DG, Kedersha NL, Goldmacher VS. The sequence and antiapoptotic functional domains of the human cytomegalovirus UL37 exon 1 immediate early protein are conserved in multiple primary strains. Virology 2001; 279:233-40. [PMID: 11145905 DOI: 10.1006/viro.2000.0726] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The human cytomegalovirus UL37 exon 1 gene encodes the immediate early protein pUL37x1 that has antiapoptotic and regulatory activities. Deletion mutagenesis analysis of the open reading frame of UL37x1 identified two domains that are necessary and sufficient for its antiapoptotic activity. These domains are confined within the segments between amino acids 5 to 34, and 118 to 147, respectively. The first domain provides the targeting of the protein to mitochondria. Direct PCR sequencing of UL37 exon 1 amplified from 26 primary strains of human cytomegalovirus demonstrated that the promoter, polyadenylation signal, and the two segments of pUL37x1 required for its antiapoptotic function were invariant in all sequenced strains and identical to those in AD169 pUL37x1. In total, UL37 exon 1 varies between 0.0 and 1.6% at the nucleotide level from strain AD169. Only 11 amino acids were found to vary in one or more viral strains, and these variations occurred only in the domains of pUL37x1 dispensable for its antiapoptotic function. We infer from this remarkable conservation of pUL37x1 in primary strains that this protein and, probably, its antiapoptotic function are required for productive replication of human cytomegalovirus in humans.
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Affiliation(s)
- W A Hayajneh
- Department of Infectious Diseases, Center for Virology, Immunology, and Infectious Disease Research, Washington, DC, 20010, USA
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