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Tahiat A, Belbouab R, Yagoubi A, Hakem S, Fernini F, Keddari M, Belhadj H, Touri S, Aggoune S, Stoddard J, Niemela J, Zerifi F, Melzi S, Aboura R, Saad-Djaballah A, Ferhani Y, Ketfi A, Messaoudi H, Bencharif Madani T, Benhacine Z, Dehimi A, Okka K, Amroune F, Fellahi M, Bendahmane C, Khoulani R, Oukil A, Soufane A, Bourelaf I, Boubidi C, Boukhenfouf N, Amine Ifri M, Khelafi N, Boudiaf H, Khelifi Touhami T, Meçabih F, Boucelma M, Zelaci A, Gacem O, Ladj MS, Mekki A, Bensaadi N, Benhalima M, Zeroual Z, Bioud B, Benameur M, Bouhdjila R, Bouzerar Z, Ibsaine O, Maouche H, Kedji L, Smati L, Boukari R, Lambert C, Rosenzweig SD, Notarangelo LD, Djenouhat K. Flow cytometry-based diagnostic approach for inborn errors of immunity: experience from Algeria. Front Immunol 2024; 15:1402038. [PMID: 39072316 PMCID: PMC11273131 DOI: 10.3389/fimmu.2024.1402038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Accepted: 06/27/2024] [Indexed: 07/30/2024] Open
Abstract
Purpose In this study, we retrospectively reviewed the use of flow cytometry (FCM) in the diagnosis of inborn errors of immunity (IEIs) at a single center in Algeria. Sharing insights into our practical experience, we present FCM based diagnostic approaches adapted to different clinical scenarios. Methods Between May 2017 and February 2024, pediatric and adult patients presenting with clinical features suggestive of immunodeficiency were subjected to FCM evaluation, including lymphocyte subset analysis, detection of specific surface or intracellular proteins, and functional analysis of immune cells. Results Over a nearly seven-year period, our laboratory diagnosed a total of 670 patients (372 (55.5%) males and 298 (44.5%) females), distributed into 70 different IEIs belonging to 9 different categories of the International Union of Immunological Societies classification. FCM was used to diagnose and categorize IEI in 514 patients (76.7%). It provided direct diagnostic insights for IEIs such as severe combined immunodeficiency, Omenn syndrome, MHC class II deficiency, familial hemophagocytic lymphohistiocytosis, and CD55 deficiency. For certain IEIs, including hyper-IgE syndrome, STAT1-gain of function, autoimmune lymphoproliferative syndrome, and activated PI3K delta syndrome, FCM offered suggestive evidence, necessitating subsequent genetic testing for confirmation. Protein expression and functional assays played a crucial role in establishing definitive diagnoses for various disorders. To setup such diagnostic assays at high and reproducible quality, high level of expertise is required; in house reference values need to be determined and the parallel testing of healthy controls is highly recommended. Conclusion Flow cytometry has emerged as a highly valuable and cost-effective tool for diagnosing and studying most IEIs, particularly in low-income countries where access to genetic testing can be limited. FCM analysis could provide direct diagnostic insights for most common IEIs, offer clues to the underlying genetic defects, and/or aid in narrowing the list of putative genes to be analyzed.
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Affiliation(s)
- Azzeddine Tahiat
- Department of Medical Biology, Rouiba Hospital, University of Algiers 1, Algiers, Algeria
| | - Reda Belbouab
- Department of Pediatrics, Mustapha University Hospital, University of Algiers 1, Algiers, Algeria
| | - Abdelghani Yagoubi
- Pediatric Gastroenterology, Centre Algérois de Pédiatrie, Algiers, Algeria
| | - Saliha Hakem
- Department of Pediatrics, Mustapha University Hospital, University of Algiers 1, Algiers, Algeria
| | - Faiza Fernini
- Department of Pediatrics, Mustapha University Hospital, University of Algiers 1, Algiers, Algeria
| | - Malika Keddari
- Department of Pediatrics, Mustapha University Hospital, University of Algiers 1, Algiers, Algeria
| | - Hayet Belhadj
- Department of Pediatrics, Central Hospital of the Army, Algiers, Algeria
| | - Souad Touri
- Department of Pediatrics, Blida University Hospital, University of Blida, Blida, Algeria
| | - Samira Aggoune
- Department of Pediatrics, El-Harrach Hospital, University of Algiers 1, Algiers, Algeria
| | - Jennifer Stoddard
- Immunology Service, Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, MD, United States
| | - Julie Niemela
- Immunology Service, Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, MD, United States
| | - Farida Zerifi
- Department of Pediatrics, Ain Taya Hospital, University of Algiers 1, Algiers, Algeria
| | - Souhila Melzi
- Department of Pediatrics, Bab El-Oued University Hospital, University of Algiers 1, Algiers, Algeria
| | - Rawda Aboura
- Department of Pediatrics, Bab El-Oued University Hospital, University of Algiers 1, Algiers, Algeria
| | - Amina Saad-Djaballah
- Department of Pediatrics, Bologhine Hospital, University of Algiers 1, Algiers, Algeria
| | - Yacine Ferhani
- Department of Pediatrics, Mustapha University Hospital, University of Algiers 1, Algiers, Algeria
| | - Abdalbasset Ketfi
- Department of Pneumology, Rouiba Hospital, University of Algiers 1, Algiers, Algeria
| | - Hassen Messaoudi
- Department of Internal Medicine, Rouiba Hospital, University of Algiers 1, Algiers, Algeria
| | - Tahar Bencharif Madani
- Department of Pediatrics, Mansourah Hospital, University of Constantine, Constantine, Algeria
| | - Zouleikha Benhacine
- Department of Pediatrics, Constantine University Hospital, University of Constantine, Constantine, Algeria
| | - Abdelhak Dehimi
- Department of Pediatrics, Setif University Hospital, University of Setif, Setif, Algeria
| | - Kamelia Okka
- Department of Pediatrics, Setif University Hospital, University of Setif, Setif, Algeria
| | - Fairouz Amroune
- Department of Pediatrics, Setif University Hospital, University of Setif, Setif, Algeria
| | - Meriem Fellahi
- Department of Pediatrics, Setif University Hospital, University of Setif, Setif, Algeria
| | | | - Radia Khoulani
- Department of Pediatrics, Meftah Hospital, Blida, Algeria
| | - Asma Oukil
- Department of Medical Biology, Rouiba Hospital, University of Algiers 1, Algiers, Algeria
| | - Asma Soufane
- Department of Medical Biology, Rouiba Hospital, University of Algiers 1, Algiers, Algeria
| | - Imene Bourelaf
- Department of Medical Biology, Rouiba Hospital, University of Algiers 1, Algiers, Algeria
| | - Chahynez Boubidi
- Department of Pediatrics A, Hussein Dey University Hospital, University of Algiers 1, Algiers, Algeria
| | | | | | | | - Houda Boudiaf
- Department of Pediatric Oncology, Mustapha University Hospital, University of Algiers 1, Algiers, Algeria
| | | | - Fethi Meçabih
- Department of Immunology, Institut Pasteur d’Algérie, University of Algiers 1, Algiers, Algeria
| | - Malika Boucelma
- Department of Internal Medicine, Kouba Hospital, University of Algiers 1, Algiers, Algeria
| | - Amara Zelaci
- Department of Pediatrics, El Oued Hospital, El Oued, Algeria
| | - Ourida Gacem
- Department of Pediatrics, Birtraria Hospital El Biar, University of Algiers 1, Algiers, Algeria
| | - Mohamed Samir Ladj
- Department of Pediatrics, Birtraria Hospital El Biar, University of Algiers 1, Algiers, Algeria
| | - Azzedine Mekki
- Department of Pediatrics B, Hussein Dey University Hospital, University of Algiers 1, Algiers, Algeria
| | - Nadia Bensaadi
- Department of Pediatrics, Tizi Ouzou University Hospital, University of Tizi Ouzou, Tizi Ouzou, Algeria
| | - Malika Benhalima
- Algiers Faculty of Pharmacy, University of Algiers 1, Algiers, Algeria
| | - Zoulikha Zeroual
- Department of Pediatrics A, Hussein Dey University Hospital, University of Algiers 1, Algiers, Algeria
| | - Belkacem Bioud
- Department of Pediatrics, Setif University Hospital, University of Setif, Setif, Algeria
| | - Mustapha Benameur
- Department of Internal Medicine, Rouiba Hospital, University of Algiers 1, Algiers, Algeria
| | - Rachid Bouhdjila
- Department of Pediatrics, Constantine University Hospital, University of Constantine, Constantine, Algeria
| | - Zahir Bouzerar
- Department of Pediatrics, Bab El-Oued University Hospital, University of Algiers 1, Algiers, Algeria
| | - Ouardia Ibsaine
- Department of Pediatrics, Ain Taya Hospital, University of Algiers 1, Algiers, Algeria
| | - Hachemi Maouche
- Department of Pediatrics, El-Harrach Hospital, University of Algiers 1, Algiers, Algeria
| | - Leila Kedji
- Department of Pediatrics, Blida University Hospital, University of Blida, Blida, Algeria
| | - Leila Smati
- Department of Pediatrics, Bologhine Hospital, University of Algiers 1, Algiers, Algeria
| | - Rachida Boukari
- Department of Pediatrics, Mustapha University Hospital, University of Algiers 1, Algiers, Algeria
| | - Claude Lambert
- Cytometry Unit, Immunology Laboratory, Saint-Etienne University Hospital, Saint-Étienne, Lyon, France
| | - Sergio D. Rosenzweig
- Immunology Service, Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, MD, United States
| | - Luigi D. Notarangelo
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Kamel Djenouhat
- Department of Medical Biology, Rouiba Hospital, University of Algiers 1, Algiers, Algeria
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Ramalingam TR, Vaidhyanathan L, Nk HR, Uppuluri R, Raj R. Clinical, immunological, and molecular findings in two patients with MHC class I deficiency and post-transplant outcome. Pediatr Allergy Immunol 2024; 35:e14196. [PMID: 38989814 DOI: 10.1111/pai.14196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 06/29/2024] [Accepted: 07/03/2024] [Indexed: 07/12/2024]
Affiliation(s)
| | | | | | - Ramya Uppuluri
- Department of Pediatric Hematology, Oncology, Blood and Marrow Transplantation, Apollo Cancer Centre, Chennai, India
| | - Revathi Raj
- Department of Pediatric Hematology, Oncology, Blood and Marrow Transplantation, Apollo Cancer Centre, Chennai, India
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Basu S, Rikhi R, Arora K, Joshi V, Sharma S, Rawat A, Singh S, Suri D. Wiskott-Aldrich syndrome protein expression in female WAS carriers: A flow cytometry study from North India. Pediatr Blood Cancer 2024; 71:e30972. [PMID: 38523275 DOI: 10.1002/pbc.30972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 02/29/2024] [Accepted: 03/08/2024] [Indexed: 03/26/2024]
Abstract
INTRODUCTION Wiskott-Aldrich syndrome (WAS) is a rare X-linked inborn error of immunity characterized by microthrombocytopenia, infections, eczema, and increased predisposition to develop autoimmunity and malignancy. Flow cytometric assay for determining WAS protein (WASp) is a rapid and cost-effective tool for detecting patients. However, very few studies described WASp expression in female carriers. Most WAS carriers are clinically asymptomatic. Active screening of female family members helps identify female carriers, distinguish de novo mutations, and to select appropriate donor prior to curative stem cell transplantation. This study was undertaken to evaluate the diagnostic capability of flow cytometry-based WASp expression in peripheral blood cells to identify carriers and compare WASp expression in different blood cell lineages. PATIENTS AND METHODS Female patients, heterozygous for WAS gene, were enrolled in this study conducted at Pediatric Allergy Immunology Unit, Advanced Pediatric Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India. Flow cytometric assessment of WASp expression in lymphocytes, monocytes, and neutrophils was carried out and compared with healthy control and affected patients. The results were expressed in delta (Δ) median fluorescence intensity (MFI) as well as stain index (SI), which is the ratio of ΔMFI of patient and ΔMFI of control. RESULTS Thirteen mothers and two sisters of genetically confirmed WAS patients were enrolled in the study. All enrolled females were clinically asymptomatic and did not have microthrombocytopenia. Low WASp expression (SI < 1) was seen in lymphocytes and monocytes in 10 (66.6%) carriers. Females with variants in proximal exons (exons 1 and 2) were found to have lesser expression than those with distal (exons 3-12) variants. CONCLUSION Flow cytometry is a rapid, easily available, cost-effective tool for WASp estimation. Lymphocytes followed by monocytes are the best cell lineages for WASp estimation in carrier females. However, genetic testing remains the gold standard, as carrier females with variants in distal exons may have normal WASp expression.
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Affiliation(s)
- Suprit Basu
- Allergy Immunology Unit, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Rashmi Rikhi
- Allergy Immunology Unit, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Kanika Arora
- Allergy Immunology Unit, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Vibhu Joshi
- Allergy Immunology Unit, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Saniya Sharma
- Allergy Immunology Unit, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Amit Rawat
- Allergy Immunology Unit, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Surjit Singh
- Allergy Immunology Unit, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Deepti Suri
- Allergy Immunology Unit, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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Zhao C, Zhang Q, Zhang R, Lian H, Ma H, Zhao X, Li Z. Genetic and clinical characteristics of primary hemophagocytic lymphohistiocytosis in children. Ann Hematol 2024; 103:17-28. [PMID: 37851074 DOI: 10.1007/s00277-023-05499-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 10/07/2023] [Indexed: 10/19/2023]
Abstract
To analyze the genetic variation and prognosis of primary hemophagocytic lymphohistiocytosis (pHLH) in children and the clinical features of isolated central nervous system HLH (CNS-HLH). We retrospectively analyzed the clinical and genetic data of 480 HLH children admitted to our hospital from September 2017 to September 2022. There were 66 patients (13.75%) with pHLH, and the median age was 3.21 years (0.17-12.92 years). Variants in UNC13D (22/66, 33.33%), PRF1 (20/66, 30.30%) and XIAP (11/66, 16.67%) were the most common. More CNS involvement was observed in pHLH patients than in secondary hemophagocytic lymphohistiocytosis (sHLH) patients (50% vs. 25.3%, P = 0.001). Eight pHLH patients had isolated CNS-HLH at onset, which progressed to systemic HLH within 10-30 days to several years. Among them, five patients who underwent hematopoietic stem cell transplantation (HSCT) survived without CNS sequelae, and the three patients who did not undergo HSCT died of disease progression or recurrence. Determination of natural killer (NK) cell cytotoxicity and CD107a levels had low sensitivity and specificity in the diagnosis of pHLH, especially in patients with PRF1 and XIAP mutations. The 3-year overall survival (OS) was significantly lower in pHLH patients than in sHLH patients (74.5% ± 14.7% vs. 89.2% ± 3.53%, P = 0.021) and in patients with CNS involvement than in those without (53.8% ± 26.07% vs. 94.4% ± 10.58%, P = 0.012). There was a significant difference in OS among pHLH patients with different gene variants (P = 0.032); patients with PRF1 variants had poor 3-year OS, and patients with XIAP variants had good 3-year OS (50% ± 28.22% and 100%, respectively). pHLH patients with distinct variants have different prognoses. Isolated CNS-HLH patients are easily misdiagnosed, and HSCT may be beneficial for these patients. Determination of NK cell cytotoxicity and CD107a levels cannot precisely distinguish pHLH from sHLH.
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Affiliation(s)
- Chenzi Zhao
- Laboratory of Hematologic Diseases, Hematology Center, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56, Nanlishi Road, Xicheng District, Beijing, 100045, China
| | - Qing Zhang
- Laboratory of Hematologic Diseases, Hematology Center, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56, Nanlishi Road, Xicheng District, Beijing, 100045, China
| | - Rui Zhang
- Beijing Key Laboratory of Pediatric Hematology Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Hongyun Lian
- Beijing Key Laboratory of Pediatric Hematology Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Honghao Ma
- Beijing Key Laboratory of Pediatric Hematology Oncology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Xiaoxi Zhao
- Laboratory of Hematologic Diseases, Hematology Center, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56, Nanlishi Road, Xicheng District, Beijing, 100045, China
| | - Zhigang Li
- Laboratory of Hematologic Diseases, Hematology Center, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56, Nanlishi Road, Xicheng District, Beijing, 100045, China.
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Jodhawat N, Bargir UA, Setia P, Taur P, Bala N, Madkaikar A, Yadav RM, Dalvi A, Shinde S, Gupta M, Shelar S, Kambli P, Gowri V, Lokeshwar M, Satoskar P, Desai M, Madkaikar M. Normative data for paediatric lymphocyte subsets: A pilot study from western India. Indian J Med Res 2023; 158:161-174. [PMID: 37787259 PMCID: PMC10645029 DOI: 10.4103/ijmr.ijmr_3282_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Indexed: 10/04/2023] Open
Abstract
Background & objectives Accurate diagnosis of immunodeficiencies requires a critical comparison of values with age-matched controls. In India, the existing reference values for rare lymphocyte subsets are currently not available and we rely on the data originating from other countries for the interpretation of the results. Furthermore, there is limited information on normal variation for these rare-subset parameters in Indian children. So, this study aimed to establish normative values for clinically important lymphocyte subsets in Indian children at different age groups. Methods 148 children aged ≥16 yr were enrolled in this study. The study population included 61 per cent males and 39 per cent females and was divided into the following groups: cord blood (n=18), 0-6 months (n=9), 6-12 months (n=13), 1-2 yr (n=19), 2-5 yr (n=27), 5-10 yr (n=25) and 10-16 yr (n=37). The absolute and relative percentage of lymphocytes, T, B, natural killer cell, along with activated, naïve and memory subsets, was determined by flow cytometry. Results Median values and the 10th and 90th percentiles were obtained for 34 lymphocyte sub-populations. The T and B naïve compartments showed a decreasing trend, whereas memory cells showed an increase with age. The activated T cell subset shows an increasing pattern up to one year and then declines gradually. Double negative T cells are relatively stable. TCRgd+T cell percentage increases with age. Interpretation & conclusions This single-centre pilot study provides preliminary data that justifies the need for future large-scale multi centric studies to generate a reference range for interpreting extended immunophenotyping profiles in the paediatric age group, making it possible for clinicians to assess the immunological status in inborn errors of immunity, infectious and autoimmune diseases.
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Affiliation(s)
- Neha Jodhawat
- Department of Pediatric Immunology & Leukocyte Biology, Indian Council of Medical Research - National Institute of Immunohaematology, KEM Hospital, Mumbai, Maharashtra, India
| | - Umair Ahmed Bargir
- Department of Pediatric Immunology & Leukocyte Biology, Indian Council of Medical Research - National Institute of Immunohaematology, KEM Hospital, Mumbai, Maharashtra, India
| | - Priyanka Setia
- Department of Pediatric Immunology & Leukocyte Biology, Indian Council of Medical Research - National Institute of Immunohaematology, KEM Hospital, Mumbai, Maharashtra, India
| | - Prasad Taur
- Division of Immunology, Bai Jerbai Wadia Hospital for Children, Mumbai, Maharashtra, India
| | - Nidhi Bala
- Department of Obstetrics & Gynaecology, Nowrosjee Wadia Maternity Hospital, Mumbai, Maharashtra, India
| | - Aditi Madkaikar
- Department of Biosciences & Bioengineering, Indian Institute of Technology, Guwahati, Assam, India
| | - Reetika Malik Yadav
- Department of Pediatric Immunology & Leukocyte Biology, Indian Council of Medical Research - National Institute of Immunohaematology, KEM Hospital, Mumbai, Maharashtra, India
| | - Aparna Dalvi
- Department of Pediatric Immunology & Leukocyte Biology, Indian Council of Medical Research - National Institute of Immunohaematology, KEM Hospital, Mumbai, Maharashtra, India
| | - Shweta Shinde
- Department of Pediatric Immunology & Leukocyte Biology, Indian Council of Medical Research - National Institute of Immunohaematology, KEM Hospital, Mumbai, Maharashtra, India
| | - Maya Gupta
- Department of Pediatric Immunology & Leukocyte Biology, Indian Council of Medical Research - National Institute of Immunohaematology, KEM Hospital, Mumbai, Maharashtra, India
| | - Shraddha Shelar
- Department of Pediatric Immunology & Leukocyte Biology, Indian Council of Medical Research - National Institute of Immunohaematology, KEM Hospital, Mumbai, Maharashtra, India
| | - Priyanka Kambli
- Department of Pediatric Immunology & Leukocyte Biology, Indian Council of Medical Research - National Institute of Immunohaematology, KEM Hospital, Mumbai, Maharashtra, India
| | - Vijaya Gowri
- Division of Immunology, Bai Jerbai Wadia Hospital for Children, Mumbai, Maharashtra, India
| | - Madhukar Lokeshwar
- Department of Paediatrics, Kashyap Nursing Home, Mumbai, Maharashtra, India
| | - Purnima Satoskar
- Department of Obstetrics & Gynaecology, Nowrosjee Wadia Maternity Hospital, Mumbai, Maharashtra, India
| | - Mukesh Desai
- Division of Immunology, Bai Jerbai Wadia Hospital for Children, Mumbai, Maharashtra, India
| | - Manisha Madkaikar
- Department of Pediatric Immunology & Leukocyte Biology, Indian Council of Medical Research - National Institute of Immunohaematology, KEM Hospital, Mumbai, Maharashtra, India
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Bakhshaei F, Sharifiyazdi H, Rowshan-Ghasrodashti A, Zare HR, Mirzaei A, Nazifi S. Polymorphism in neutrophil cytosolic factor 4 (NCF4) of dairy cows had mastitis in previous lactations, and the relationship with the respiratory burst. Res Vet Sci 2023; 160:39-44. [PMID: 37263099 DOI: 10.1016/j.rvsc.2023.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/09/2023] [Accepted: 05/11/2023] [Indexed: 06/03/2023]
Abstract
Nicotinamide adenine dinucleotide phosphate oxidase (NADPH oxidase), as a key factor in innate immunity, consists of several components, one of them is p40phox which is encoded by neutrophil cytosolic factor 4 (NCF4). Respiratory burst and reactive oxygen species (ROS) production are antimicrobial mechanisms associated with NADPH oxidase. This study evaluated the effects of g.18174 A > G and g.18270C > T single-nucleotide polymorphisms (SNP) in NCF4 on bovine mastitis and the respiratory burst capacity of neutrophils. SNPs of 160 dairy cattle were determined using a novel PCR-RFLP protocol by employing restriction enzymes, MboI and FokI. Also, the flow cytometry measured respiratory burst in 82 blood samples. Our results indicated that only g.18174 A > G SNP reduced the respiratory burst capacity. However, both SNPs were not significantly correlated with clinical mastitis. We concluded that g.18174 A > G decreases the function of NADPH oxidase. However, both SNPs were not significantly correlated with clinical mastitis.
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Affiliation(s)
- Farnoosh Bakhshaei
- Department of Clinical Sciences, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Hassan Sharifiyazdi
- Department of Clinical Sciences, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Abbas Rowshan-Ghasrodashti
- Large Animal Internal Medicine, Department of Clinical Studies, School of Veterinary Medicine, Islamic Azad University, Kazerun Branch, Shiraz, Iran
| | - Hamid-Reza Zare
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Flowcytometry, Sa'adati Pathobiology Laboratory, Shiraz, Iran
| | - Abdollah Mirzaei
- Department of Clinical Sciences, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Saeed Nazifi
- Department of Clinical Sciences, School of Veterinary Medicine, Shiraz University, Shiraz, Iran.
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Mauracher AA, Henrickson SE. Leveraging Systems Immunology to Optimize Diagnosis and Treatment of Inborn Errors of Immunity. FRONTIERS IN SYSTEMS BIOLOGY 2022; 2:910243. [PMID: 37670772 PMCID: PMC10477056 DOI: 10.3389/fsysb.2022.910243] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Abstract
Inborn errors of immunity (IEI) are monogenic disorders that can cause diverse symptoms, including recurrent infections, autoimmunity and malignancy. While many factors have contributed, the increased availability of next-generation sequencing has been central in the remarkable increase in identification of novel monogenic IEI over the past years. Throughout this phase of disease discovery, it has also become evident that a given gene variant does not always yield a consistent phenotype, while variants in seemingly disparate genes can lead to similar clinical presentations. Thus, it is increasingly clear that the clinical phenotype of an IEI patient is not defined by genetics alone, but is also impacted by a myriad of factors. Accordingly, we need methods to amplify our current diagnostic algorithms to better understand mechanisms underlying the variability in our patients and to optimize treatment. In this review, we will explore how systems immunology can contribute to optimizing both diagnosis and treatment of IEI patients by focusing on identifying and quantifying key dysregulated pathways. To improve mechanistic understanding in IEI we must deeply evaluate our rare IEI patients using multimodal strategies, allowing both the quantification of altered immune cell subsets and their functional evaluation. By studying representative controls and patients, we can identify causative pathways underlying immune cell dysfunction and move towards functional diagnosis. Attaining this deeper understanding of IEI will require a stepwise strategy. First, we need to broadly apply these methods to IEI patients to identify patterns of dysfunction. Next, using multimodal data analysis, we can identify key dysregulated pathways. Then, we must develop a core group of simple, effective functional tests that target those pathways to increase efficiency of initial diagnostic investigations, provide evidence for therapeutic selection and contribute to the mechanistic evaluation of genetic results. This core group of simple, effective functional tests, targeting key pathways, can then be equitably provided to our rare patients. Systems biology is thus poised to reframe IEI diagnosis and therapy, fostering research today that will provide streamlined diagnosis and treatment choices for our rare and complex patients in the future, as well as providing a better understanding of basic immunology.
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Affiliation(s)
- Andrea A. Mauracher
- Division of Allergy and Immunology, Department of Pediatrics, Children’s Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Sarah E. Henrickson
- Division of Allergy and Immunology, Department of Pediatrics, Children’s Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
- Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
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8
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Meshaal S, Ei Hawary R, Eldash A, Erfan A, Abd Elaziz D, Alkady R, Lotfy S, Galal N, Boutros J, Elmarsafy A. Flow cytometry optimizing the diagnostic approach in inborn errors of immunity: experience from Egypt. Allergy Asthma Clin Immunol 2022; 18:45. [PMID: 35655284 PMCID: PMC9164555 DOI: 10.1186/s13223-022-00688-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 05/20/2022] [Indexed: 11/16/2022] Open
Abstract
Background Human inborn errors of immunity (IEI) are a group of inherited genetic disorders of the immune system. IEI Patients suffer from severe repeated infections, autoimmunity, lymphadenopathy and/or increased susceptibility to malignancies. IEI are due to absence, disproportion, or loss of function of immune cells; mostly inherited in autosomal recessive manner, hence are more common in countries with high rate of consanguinity. Definite diagnosis of IEI is achieved by genetic analysis, however it is not always available. Aim: to report on different IEI categories and impact of expanding the use of flow cytometry (FCM) in diagnosis, categorization and follow up of IEI patients in a highly consanguineous population. Methods Retrospective chart review on different IEI categories diagnosed at the primary immunodeficiency center in Cairo University Specialized Pediatric hospital from 2011 to 2021 based on expanding the use of FCM. Results 1510 IEI patients were diagnosed; 480 were diagnosed genetically with FMF, 11 with cystic fibrosis and 1019 patients were diagnosed with other IEI disorders. Phagocytic defects were the commonest (30%) followed by severe combined immunodeficiency (22%) and combined immunodeficiency (18.3%). FCM testing properly diagnosed and categorized 73% of the cases. Conclusion Using multi-color FCM to evaluate immune cells populations, subpopulations, functions, and intracellular proteins expression is proved a useful cost-effective method for screening, categorization and follow up of IEI patients. FCM can improve the diagnosis of IEI significantly when tests are properly targeted and well designed. This study presents a 10-year experience in diagnosis of IEI using FCM at a tertiary referral center in a setting of limited resources and yet high prevalence of IEI. Supplementary Information The online version contains supplementary material available at 10.1186/s13223-022-00688-w.
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Affiliation(s)
- Safa Meshaal
- Clinical and Chemical Pathology Department, Faculty of Medicine, Cairo University, Cairo, 11562, Egypt.
| | - Rabab Ei Hawary
- Clinical and Chemical Pathology Department, Faculty of Medicine, Cairo University, Cairo, 11562, Egypt
| | - Alia Eldash
- Clinical and Chemical Pathology Department, Faculty of Medicine, Cairo University, Cairo, 11562, Egypt
| | - Aya Erfan
- Clinical and Chemical Pathology Department, Faculty of Medicine, Cairo University, Cairo, 11562, Egypt
| | - Dalia Abd Elaziz
- Pediatric Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Radwa Alkady
- Pediatric Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Sohilla Lotfy
- Pediatric Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Nermeen Galal
- Pediatric Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Jeannette Boutros
- Pediatric Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Aisha Elmarsafy
- Pediatric Department, Faculty of Medicine, Cairo University, Cairo, Egypt
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9
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Gnanasambandam J, Geminiganesan S, Vilvanathan V, Sankaranarayanan S, Padmanabhan R. Secondary Hemophagocytic Lymphohistiocytosis - A Common Ramification of Different Diseases. EJIFCC 2022; 33:63-69. [PMID: 35645690 PMCID: PMC9092716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Hemophagocytic lymphohistiocytosis is a rare and potentially fatal disorder caused by immune dysregulation. It can occur as a primary genetic disease or secondarily due to various causes including infections, malignancies or autoimmune diseases. In this case report, we present two cases of Hemophagocytic lymphohistiocytosis which were secondary to typhoid and dengue fever. While primary disease occurs predominantly in infants, secondary hemophagocytic lymphohistiocytosis can occur in any age group. Both primary and secondary hemophagocytic lymphohistiocytosis are characterised by fever, hepatosplenomegaly, pancytopenia and multiorgan dysfunction. But unusual persistence of fever and other organ involvement should need further workup for hemophagocytic lymphohistiocytosis. Secondary hemophagocytic lymphohistiocytosis may resolve on treating the underlying disorder. But severe cases need treatment with immunosuppressive/immunomodulation therapy to prevent morbidity. Early clinical suspicion, prompt diagnosis and treatment of hemophagocytic lymphohistiocytosis are essential to prevent deleterious effects to health.
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Affiliation(s)
| | - Sangeetha Geminiganesan
- Corresponding author: Sangeetha Geminiganesan Department of Paediatric Medicine Sri Ramachandra Institute of Higher Education and Research Chennai India E-mail:
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10
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Ramalingam TR. Role of Flow Cytometry in the Diagnosis of Inborn Errors of Immunity. J PEDIAT INF DIS-GER 2022. [DOI: 10.1055/s-0041-1740954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractInborn errors of immunity (IEI) are a group of inherited heterogeneous disorders affecting the immune system characterized by increased susceptibility to infections, immune dysregulation, and lymphoproliferation. Flow cytometry (FCM) is a rapid and reliable technique for evaluation and enumeration of immune cells. It also helps in understanding the functional and signaling pathways of the immune system. Lymphocyte subset analysis is a simple and effective screening tool in suspected combined and humoral immunodeficiency patients. Qualitative phagocytic defects such as chronic granulomatous disease and leucocyte adhesion defect are easily diagnosed by FCM. Study of intracellular proteins (e.g., BTK, WASP, DOCK8), cytokine production, and signaling molecules (e.g., STAT3) by FCM is very useful but also quite challenging to establish. T and B lymphocyte interaction for normal class switching of B cells can be assessed and can help in diagnosis of combined variable immunodeficiency and hyperimmunoglobulin M syndrome. FCM is also used in posttransplant monitoring of IEI patients and also in prenatal diagnosis in suspected cases. It is also useful in validation of variants of uncertain significance obtained in exome sequencing. FCM results should always be interpreted with clinical history and, if needed, should be confirmed with molecular genetic studies before establishing the final diagnosis. Ensuring good sample quality and running parallel controls with patient samples will avoid the preanalytical and analytical errors. This review describes the applications of FCM in the diagnosis of various IEI.
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11
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Abstract
Flow cytometry is a laser-based technology generating a scattered and a fluorescent light signal that enables rapid analysis of the size and granularity of a particle or single cell. In addition, it offers the opportunity to phenotypically characterize and collect the cell with the use of a variety of fluorescent reagents. These reagents include but are not limited to fluorochrome-conjugated antibodies, fluorescent expressing protein-, viability-, and DNA-binding dyes. Major developments in reagents, electronics, and software within the last 30 years have greatly expanded the ability to combine up to 50 antibodies in one single tube. However, these advances also harbor technical risks and interpretation issues in the identification of certain cell populations which will be summarized in this viewpoint article. It will further provide an overview of different potential applications of flow cytometry in research and its possibilities to be used in the clinic.
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12
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Halacli SO. The effect of mutatio-type on proteo-phenotype and clinico-phenotype in selected primary immunodeficiencies. Immunol Res 2021; 70:56-66. [PMID: 34622368 DOI: 10.1007/s12026-021-09239-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 09/25/2021] [Indexed: 11/29/2022]
Abstract
In the diagnosis of primary immunodeficiencies which are heterogeneous groups of genetic disorders, next-generation sequencing strategies take an important place. Protein expression analyses and some functional studies which are fundamental to determine the pathogenicity of the mutation are also performed to accelerate the diagnosis of PIDs before sequencing. However, protein expressions and functions do not always reflect the genetic and clinical background of the disease even the existence of a pathogenic variant or vice versa. In this study, it was aimed to understand genotype-proteophenotype-clinicophenotype correlation by investigating the effect of mutation types on protein expression, function, and clinical severity in X-linked, autosomal dominant, and autosomal recessive forms of PIDs. It was searched in PubMed and Web of Science without any restrictions on study design and publication time. Totally, 1178 patients with PIDs who have 553 different mutations were investigated from 174 eligible full-text articles. For all mutations, the effect of mutation type on protein expressions and protein functions was analyzed. Furthermore, the most frequent missense and nonsense mutations that were identified in patients with PIDs were evaluated to determine the genotype-clinicophenotype correlation. Protein expressions and functions were changed depending on the mutation type and the affected domain. A significant relationship was observed between protein expression level and clinical severity among all investigated patients. There was also a positive correlation between clinical severity and the affected domains. Mutation types and affected domains should be carefully evaluated with respect to protein expression levels and functional changes during the evaluation of clinico-phenotype.
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Affiliation(s)
- Sevil Oskay Halacli
- Division of Pediatric Immunology, Department of Basic Sciences of Pediatrics, Institute of Child's Health, Hacettepe University, Ankara, Turkey.
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13
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Khalturina EO, Degtyareva ND, Bairashevskaia AV, Mulenkova AV, Degtyareva AV. Modern diagnostic capabilities of neonatal screening for primary immunodeficiencies in newborns. Clin Exp Pediatr 2021; 64:504-510. [PMID: 33781055 PMCID: PMC8498015 DOI: 10.3345/cep.2020.01270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 02/05/2021] [Indexed: 11/27/2022] Open
Abstract
Population screening of newborns is an extremely important and informative diagnostic approach that allows early identification of babies who are predisposed to the development of a number of serious diseases. Some of these diseases are known and have effective treatment methods. Neonatal screening enables the early diagnosis and subsequent timely initiation of therapy. This helps to prevent serious complications and reduce the percentage of disability and deaths among newborns and young children. Primary immunodeficiency diseases and primary immunodeficiency syndrome (PIDS) are a heterogeneous group of diseases and conditions based on impaired immune system function associated with developmental defects and characterized by various combinations of recurrent infections, development of autoimmune and lymphoproliferative syndromes (genetic defects in apoptosis, gene mutation Fas receptor or ligand), granulomatous process, and malignant neoplasms. Most of these diseases manifest in infancy and lead to serious illness, disability, and high mortality rates. Until recently, it was impossible to identify children with PIDS before the onset of the first clinical symptoms, which are usually accompanied by complications in the form of severe coinfections of a viral-bacterial-fungal etiology. Modern advances in medical laboratory technology have allowed the identification of children with severe PIDS, manifested by T- and/or B-cell lymphopenia and other disorders of the immune system. This review discusses the main existing strategies and directions used in PIDS screening programs for newborns, including approaches to screening based on excision of T-cell receptors and kappa-recombination excision circles, as well as the potential role and place of next-generation sequencing technology to increase the diagnostic accuracy of these diseases.
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Affiliation(s)
- Evgenia Olegovna Khalturina
- Federal State Autonomous Educational Institution of Higher Education, I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia.,National Medical Research Center for Obstetrics, Gynecology, and Perinatology named after Academician V.I. Kulakov of the Ministry of Health of the Russian Federation; Department of Pediatrics and Neonatology, Moscow, Russia
| | - Natalia Dmitrievna Degtyareva
- Federal State Autonomous Educational Institution of Higher Education, I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
| | - Anastasiia Vasi'evna Bairashevskaia
- Federal State Autonomous Educational Institution of Higher Education, I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
| | - Alena Valerievna Mulenkova
- Federal State Autonomous Educational Institution of Higher Education, I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
| | - Anna Vladimirovna Degtyareva
- Federal State Autonomous Educational Institution of Higher Education, I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia.,National Medical Research Center for Obstetrics, Gynecology, and Perinatology named after Academician V.I. Kulakov of the Ministry of Health of the Russian Federation; Department of Pediatrics and Neonatology, Moscow, Russia
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14
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Shabrish S, Kelkar M, Yadav RM, Bargir UA, Gupta M, Dalvi A, Aluri J, Kulkarni M, Shinde S, Sawant-Desai S, Kambli P, Hule G, Setia P, Jodhawat N, Gaikwad P, Dhawale A, Nambiar N, Gowri V, Pandrowala A, Taur P, Raj R, Uppuluri R, Sharma R, Kini P, Sivasankaran M, Munirathnam D, Vedam R, Vignesh P, Banday A, Rawat A, Aggarwal A, Poddar U, Girish M, Chaudhary A, Sampagar A, Jayaraman D, Chaudhary N, Shah N, Jijina F, Chandrakla S, Kanakia S, Arora B, Sen S, Lokeshwar M, Desai M, Madkaikar M. The Spectrum of Clinical, Immunological, and Molecular Findings in Familial Hemophagocytic Lymphohistiocytosis: Experience From India. Front Immunol 2021; 12:612583. [PMID: 33746956 PMCID: PMC7973116 DOI: 10.3389/fimmu.2021.612583] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 02/04/2021] [Indexed: 11/26/2022] Open
Abstract
Hemophagocytic lymphohistiocytosis (HLH) is a syndrome of immune dysregulation characterized by hyperactivation of the immune system, excessive cytokine secretion and severe systemic inflammation. HLH is classified as familial (FHL) when associated with mutations in PRF1, UNC13D, STX11, and STXBP2 genes. There is limited information available about the clinical and mutational spectrum of FHL patients in Indian population. This study is a retrospective analysis of 101 molecularly characterized FHL patients over the last 10 years from 20 different referral centers in India. FHL2 and FHL3 together accounted for 84% of cases of FHL in our cohort. Patients belonging to different FHL subtypes were indistinguishable based on clinical and biochemical parameters. However, flow cytometry-based assays viz. perforin expression and degranulation assay were found to be specific and sensitive in diagnosis and classification of FHL patients. Molecular characterization of respective genes revealed 76 different disease-causing mutations including 39 (51%) novel mutations in PRF1, UNC13D, STX11, and STXBP2 genes. Overall, survival was poor (28%) irrespective of the age of onset or the type of mutation in our cohort. Altogether, this article sheds light on the current scenario of FHL in India. Our data reveal a wide genetic heterogeneity of FHL in the Indian population and confirms the poor prognosis of FHL. This study also emphasizes that though mutational analysis is important for diagnostic confirmation of FHL, flow cytometry based assays help significantly in rapid diagnosis and functional validation of novel variants identified.
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Affiliation(s)
- Snehal Shabrish
- Department of Pediatric Immunology and Leukocyte Biology, Indian Council of Medical Research-National Institute of Immunohaematology, Mumbai, India
| | - Madhura Kelkar
- Department of Pediatric Immunology and Leukocyte Biology, Indian Council of Medical Research-National Institute of Immunohaematology, Mumbai, India
| | - Reetika Malik Yadav
- Department of Pediatric Immunology and Leukocyte Biology, Indian Council of Medical Research-National Institute of Immunohaematology, Mumbai, India
| | - Umair Ahmed Bargir
- Department of Pediatric Immunology and Leukocyte Biology, Indian Council of Medical Research-National Institute of Immunohaematology, Mumbai, India
| | - Maya Gupta
- Department of Pediatric Immunology and Leukocyte Biology, Indian Council of Medical Research-National Institute of Immunohaematology, Mumbai, India
| | - Aparna Dalvi
- Department of Pediatric Immunology and Leukocyte Biology, Indian Council of Medical Research-National Institute of Immunohaematology, Mumbai, India
| | - Jahnavi Aluri
- Department of Pediatric Immunology and Leukocyte Biology, Indian Council of Medical Research-National Institute of Immunohaematology, Mumbai, India
| | - Manasi Kulkarni
- Department of Pediatric Immunology and Leukocyte Biology, Indian Council of Medical Research-National Institute of Immunohaematology, Mumbai, India
| | - Shweta Shinde
- Department of Pediatric Immunology and Leukocyte Biology, Indian Council of Medical Research-National Institute of Immunohaematology, Mumbai, India
| | - Sneha Sawant-Desai
- Department of Pediatric Immunology and Leukocyte Biology, Indian Council of Medical Research-National Institute of Immunohaematology, Mumbai, India
| | - Priyanka Kambli
- Department of Pediatric Immunology and Leukocyte Biology, Indian Council of Medical Research-National Institute of Immunohaematology, Mumbai, India
| | - Gouri Hule
- Department of Pediatric Immunology and Leukocyte Biology, Indian Council of Medical Research-National Institute of Immunohaematology, Mumbai, India
| | - Priyanka Setia
- Department of Pediatric Immunology and Leukocyte Biology, Indian Council of Medical Research-National Institute of Immunohaematology, Mumbai, India
| | - Neha Jodhawat
- Department of Pediatric Immunology and Leukocyte Biology, Indian Council of Medical Research-National Institute of Immunohaematology, Mumbai, India
| | - Pallavi Gaikwad
- Department of Pediatric Immunology and Leukocyte Biology, Indian Council of Medical Research-National Institute of Immunohaematology, Mumbai, India
| | - Amruta Dhawale
- Department of Pediatric Immunology and Leukocyte Biology, Indian Council of Medical Research-National Institute of Immunohaematology, Mumbai, India
| | - Nayana Nambiar
- Department of Pediatric Immunology and Leukocyte Biology, Indian Council of Medical Research-National Institute of Immunohaematology, Mumbai, India
| | - Vijaya Gowri
- Department of Immunology, Bai Jerbai Wadia Hospital for Children, Mumbai, India
| | - Ambreen Pandrowala
- Department of Bone Marrow Transplant, Bai Jerbai Wadia Hospital for Children, Mumbai, India
| | - Prasad Taur
- Department of Immunology, Bai Jerbai Wadia Hospital for Children, Mumbai, India
| | - Revathi Raj
- Department of Pediatric Hematology, Oncology, Blood and Marrow Transplantation, Apollo Hospitals, Chennai, India
| | - Ramya Uppuluri
- Department of Pediatric Hematology, Oncology, Blood and Marrow Transplantation, Apollo Hospitals, Chennai, India
| | - Ratna Sharma
- Comprehensive Thalassemia Care, Pediatric Hematology-Oncology & Bone Marrow Transplantation Centre, Mumbai, India
| | - Pranoti Kini
- Comprehensive Thalassemia Care, Pediatric Hematology-Oncology & Bone Marrow Transplantation Centre, Mumbai, India
| | - Meena Sivasankaran
- Department of Pediatric Hemato-Oncology, Kanchi Kamakoti CHILDS Trust Hospital, Chennai, India
| | | | - Ramprasad Vedam
- Medgenome Labs Pvt Ltd., Narayana Health City, Bommasandra, India
| | - Pandiarajan Vignesh
- Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Aaqib Banday
- Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Amit Rawat
- Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Amita Aggarwal
- Department of Clinical Immunology and Rheumatology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - Ujjal Poddar
- Department of Clinical Immunology and Rheumatology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - Meenakshi Girish
- Department of Pediatrics, All India Institute of Medical Sciences, Nagpur, India
| | - Abhijit Chaudhary
- Department of Pediatrics, All India Institute of Medical Sciences, Nagpur, India
| | | | - Dharani Jayaraman
- Department of Pediatrics, Sri Ramchandra Institute of Higher Education and Research, Chennai, India
| | - Narendra Chaudhary
- Department of Pediatrics, All India Institute of Medical Sciences, Bhopal, India
| | | | | | - S Chandrakla
- Department of Haematology, Seth G. S. Medical College and King Edward Memorial Hospital, Mumbai, India
| | - Swati Kanakia
- Lilavati Hospital and Research Centre, Mumbai, India
| | - Brijesh Arora
- Department of Pediatric Oncology, Tata Memorial Hospital, Mumbai, India
| | - Santanu Sen
- Kokilaben Dhirubai Ambani Hospital, Mumbai, India
| | | | - Mukesh Desai
- Department of Immunology, Bai Jerbai Wadia Hospital for Children, Mumbai, India
| | - Manisha Madkaikar
- Department of Pediatric Immunology and Leukocyte Biology, Indian Council of Medical Research-National Institute of Immunohaematology, Mumbai, India
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15
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Rawat A, Vignesh P, Sudhakar M, Sharma M, Suri D, Jindal A, Gupta A, Shandilya JK, Loganathan SK, Kaur G, Chawla S, Patra PK, Khadwal A, Saikia B, Minz RW, Aggarwal V, Taur P, Pandrowala A, Gowri V, Desai M, Kulkarni M, Hule G, Bargir U, Kambli P, Madkaikar M, Bhattad S, Ginigeri C, Kumar H, Jayaram A, Munirathnam D, Sivasankaran M, Raj R, Uppuluri R, Na F, George B, Lashkari HP, Kalra M, Sachdeva A, Seth S, Sabui T, Gupta A, van Leeuwen K, de Boer M, Chan KW, Imai K, Ohara O, Nonoyama S, Lau YL, Singh S. Clinical, Immunological, and Molecular Profile of Chronic Granulomatous Disease: A Multi-Centric Study of 236 Patients From India. Front Immunol 2021; 12:625320. [PMID: 33717137 PMCID: PMC7946827 DOI: 10.3389/fimmu.2021.625320] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 01/06/2021] [Indexed: 12/19/2022] Open
Abstract
Background Chronic granulomatous disease (CGD) is an inherited defect in phagocytic respiratory burst that results in severe and life-threatening infections in affected children. Single center studies from India have shown that proportion of autosomal recessive (AR) CGD is more than that reported from the West. Further, affected patients have high mortality rates due to late referrals and difficulties in accessing appropriate treatment. However, there is lack of multicentric collaborative data on CGD from India. Objective To describe infection patterns, immunological, and molecular features of CGD from multiple centers in India. Methods A detailed proforma that included clinical and laboratory details was prepared and sent to multiple centers in India that are involved in the care and management of patients with inborn errors of immunity. Twelve centers have provided data which were later pooled together and analyzed. Results Of the 236 patients analyzed in our study, X-linked and AR-CGD was seen in 77 and 97, respectively. Male female ratio was 172:64. Median age at onset of symptoms and diagnosis was 8 and 24 months, respectively. Common infections documented include pneumonia (71.6%), lymphadenitis (31.6%), skin and subcutaneous abscess (23.7%), blood-stream infection (13.6%), osteomyelitis (8.6%), liver abscess (7.2%), lung abscess (2.9%), meningoencephalitis (2.5%), splenic abscess (1.7%), and brain abscess (0.9%). Forty-four patients (18.6%) had evidence of mycobacterial infection. Results of molecular assay were available for 141 patients (59.7%)—CYBB (44.7%) gene defect was most common, followed by NCF1 (31.9%), NCF2 (14.9%), and CYBA (8.5%). While CYBA variants were documented only in Southern and Western parts of India, a common dinucleotide deletion in NCF2 (c.835_836delAC) was noted only in North Indian population. Of the 174 patients with available outcome data, 67 (38.5%) had expired. Hematopoietic stem cell transplantation was carried out in 23 patients, and 12 are doing well on follow-up. Conclusions In India, proportion of patients with AR-CGD is higher as compared to Western cohorts, though regional differences in types of AR-CGD exist. Clinical profile and mortality rates are similar in both X-linked and AR-CGD. However, this may be a reflection of the fact that milder forms of AR-CGD are probably being missed.
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Affiliation(s)
- Amit Rawat
- Allergy Immunology Unit, Advanced Pediatrics Centre, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Pandiarajan Vignesh
- Allergy Immunology Unit, Advanced Pediatrics Centre, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Murugan Sudhakar
- Allergy Immunology Unit, Advanced Pediatrics Centre, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Madhubala Sharma
- Allergy Immunology Unit, Advanced Pediatrics Centre, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Deepti Suri
- Allergy Immunology Unit, Advanced Pediatrics Centre, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Ankur Jindal
- Allergy Immunology Unit, Advanced Pediatrics Centre, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Anju Gupta
- Allergy Immunology Unit, Advanced Pediatrics Centre, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Jitendra Kumar Shandilya
- Allergy Immunology Unit, Advanced Pediatrics Centre, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Sathish Kumar Loganathan
- Allergy Immunology Unit, Advanced Pediatrics Centre, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Gurjit Kaur
- Allergy Immunology Unit, Advanced Pediatrics Centre, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Sanchi Chawla
- Allergy Immunology Unit, Advanced Pediatrics Centre, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Pratap Kumar Patra
- Allergy Immunology Unit, Advanced Pediatrics Centre, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Alka Khadwal
- Bone Marrow Transplantation Unit, Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Biman Saikia
- Department of Immunopathology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Ranjana Walker Minz
- Department of Immunopathology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Vaishali Aggarwal
- Allergy Immunology Unit, Advanced Pediatrics Centre, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Prasad Taur
- Department of Immunology, Bai Jerbai Wadia Hospital for Children, Mumbai, India
| | - Ambreen Pandrowala
- Department of Immunology, Bai Jerbai Wadia Hospital for Children, Mumbai, India
| | - Vijaya Gowri
- Department of Immunology, Bai Jerbai Wadia Hospital for Children, Mumbai, India
| | - Mukesh Desai
- Department of Immunology, Bai Jerbai Wadia Hospital for Children, Mumbai, India
| | | | - Gauri Hule
- ICMR-National Institute of Immunohaematology, Mumbai, India
| | - Umair Bargir
- ICMR-National Institute of Immunohaematology, Mumbai, India
| | | | | | - Sagar Bhattad
- Department of Pediatrics, Aster CMI Hospital, Bengaluru, India
| | - Chetan Ginigeri
- Department of Pediatrics, Aster CMI Hospital, Bengaluru, India
| | - Harish Kumar
- Department of Pediatrics, Aster CMI Hospital, Bengaluru, India
| | | | - Deenadayalan Munirathnam
- Department of Pediatric Hematology and Oncology, Kanchi Kamakoti Child Trust Hospital, Chennai, India
| | - Meena Sivasankaran
- Department of Pediatric Hematology and Oncology, Kanchi Kamakoti Child Trust Hospital, Chennai, India
| | | | | | - Fouzia Na
- Christian Medical College, Vellore, India
| | | | | | - Manas Kalra
- Sir Ganga Ram Hospital, Rajendra Nagar, New Delhi, India
| | | | - Shishir Seth
- Apollo Cancer Institute, Indraprastha Apollo Hospitals, Savita Vihar, New Delhi, India
| | | | - Aman Gupta
- Department of Pediatric Rheumatology & Immunology, MEDENS Hospital, Panchkula, India
| | - Karin van Leeuwen
- Sanquin Research and Landsteiner Laboratory, Amsterdam Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Martin de Boer
- Sanquin Research and Landsteiner Laboratory, Amsterdam Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Koon Wing Chan
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Hong Kong, China
| | - Kohsuke Imai
- Department of Pediatrics, National Defense Medical College, Saitama, Japan.,Department of Community Pediatrics, Perinatal and Maternal Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | | | - Shigeaki Nonoyama
- Department of Pediatrics, National Defense Medical College, Saitama, Japan
| | - Yu Lung Lau
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Hong Kong, China
| | - Surjit Singh
- Allergy Immunology Unit, Advanced Pediatrics Centre, Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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Vignesh P, Rawat A, Kumrah R, Singh A, Gummadi A, Sharma M, Kaur A, Nameirakpam J, Jindal A, Suri D, Gupta A, Khadwal A, Saikia B, Minz RW, Sharma K, Desai M, Taur P, Gowri V, Pandrowala A, Dalvi A, Jodhawat N, Kambli P, Madkaikar MR, Bhattad S, Ramprakash S, Cp R, Jayaram A, Sivasankaran M, Munirathnam D, Balaji S, Rajendran A, Aggarwal A, Singh K, Na F, George B, Mehta A, Lashkari HP, Uppuluri R, Raj R, Bartakke S, Gupta K, Sreedharanunni S, Ogura Y, Kato T, Imai K, Chan KW, Leung D, Ohara O, Nonoyama S, Hershfield M, Lau YL, Singh S. Clinical, Immunological, and Molecular Features of Severe Combined Immune Deficiency: A Multi-Institutional Experience From India. Front Immunol 2021; 11:619146. [PMID: 33628209 PMCID: PMC7897653 DOI: 10.3389/fimmu.2020.619146] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 12/17/2020] [Indexed: 01/04/2023] Open
Abstract
Background Severe Combined Immune Deficiency (SCID) is an inherited defect in lymphocyte development and function that results in life-threatening opportunistic infections in early infancy. Data on SCID from developing countries are scarce. Objective To describe clinical and laboratory features of SCID diagnosed at immunology centers across India. Methods A detailed case proforma in an Excel format was prepared by one of the authors (PV) and was sent to centers in India that care for patients with primary immunodeficiency diseases. We collated clinical, laboratory, and molecular details of patients with clinical profile suggestive of SCID and their outcomes. Twelve (12) centers provided necessary details which were then compiled and analyzed. Diagnosis of SCID/combined immune deficiency (CID) was based on 2018 European Society for Immunodeficiencies working definition for SCID. Results We obtained data on 277 children; 254 were categorized as SCID and 23 as CID. Male-female ratio was 196:81. Median (inter-quartile range) age of onset of clinical symptoms and diagnosis was 2.5 months (1, 5) and 5 months (3.5, 8), respectively. Molecular diagnosis was obtained in 162 patients - IL2RG (36), RAG1 (26), ADA (19), RAG2 (17), JAK3 (15), DCLRE1C (13), IL7RA (9), PNP (3), RFXAP (3), CIITA (2), RFXANK (2), NHEJ1 (2), CD3E (2), CD3D (2), RFX5 (2), ZAP70 (2), STK4 (1), CORO1A (1), STIM1 (1), PRKDC (1), AK2 (1), DOCK2 (1), and SP100 (1). Only 23 children (8.3%) received hematopoietic stem cell transplantation (HSCT). Of these, 11 are doing well post-HSCT. Mortality was recorded in 210 children (75.8%). Conclusion We document an exponential rise in number of cases diagnosed to have SCID over the last 10 years, probably as a result of increasing awareness and improvement in diagnostic facilities at various centers in India. We suspect that these numbers are just the tip of the iceberg. Majority of patients with SCID in India are probably not being recognized and diagnosed at present. Newborn screening for SCID is the need of the hour. Easy access to pediatric HSCT services would ensure that these patients are offered HSCT at an early age.
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Affiliation(s)
- Pandiarajan Vignesh
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Amit Rawat
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Rajni Kumrah
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Ankita Singh
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Anjani Gummadi
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Madhubala Sharma
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Anit Kaur
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Johnson Nameirakpam
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Ankur Jindal
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Deepti Suri
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Anju Gupta
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Alka Khadwal
- Bone Marrow Transplantation Unit, Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Biman Saikia
- Department of Immunopathology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Ranjana Walker Minz
- Department of Immunopathology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Kaushal Sharma
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Mukesh Desai
- Department of Immunology, Bai Jerbai Wadia Hospital for Children, Mumbai, India
| | - Prasad Taur
- Department of Immunology, Bai Jerbai Wadia Hospital for Children, Mumbai, India
| | - Vijaya Gowri
- Department of Immunology, Bai Jerbai Wadia Hospital for Children, Mumbai, India
| | - Ambreen Pandrowala
- Bone Marrow Transplantation Unit, Bai Jerbai Wadia Hospital for Children, Mumbai, India
| | - Aparna Dalvi
- ICMR-National Institute of Immunohematology, Mumbai, India
| | - Neha Jodhawat
- ICMR-National Institute of Immunohematology, Mumbai, India
| | | | | | - Sagar Bhattad
- Pediatric Immunology and Rheumatology, Aster CMI hospital, Bengaluru, India
| | - Stalin Ramprakash
- Pediatric Hemat-oncology and BMT Unit, Aster CMI Hospital, Bengaluru, India
| | - Raghuram Cp
- Pediatric Hemat-oncology and BMT Unit, Aster CMI Hospital, Bengaluru, India
| | | | | | | | - Sarath Balaji
- Institute of Child Health, Madras Medical College, Chennai, India
| | - Aruna Rajendran
- Institute of Child Health, Madras Medical College, Chennai, India
| | - Amita Aggarwal
- Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - Komal Singh
- Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
| | - Fouzia Na
- Christian Medical College, Vellore, India
| | | | | | | | | | | | | | - Kirti Gupta
- Department of Histopathology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Sreejesh Sreedharanunni
- Department of Hematology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Yumi Ogura
- Department of Pediatrics, National Defense Medical College, Saitama, Japan
| | - Tamaki Kato
- Department of Pediatrics, National Defense Medical College, Saitama, Japan
| | - Kohsuke Imai
- Department of Pediatrics, National Defense Medical College, Saitama, Japan.,Department of Community Pediatrics, Perinatal and Maternal Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Koon Wing Chan
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Hong Kong, Hong Kong
| | - Daniel Leung
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Hong Kong, Hong Kong
| | | | - Shigeaki Nonoyama
- Department of Pediatrics, National Defense Medical College, Saitama, Japan
| | | | - Yu-Lung Lau
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Hong Kong, Hong Kong
| | - Surjit Singh
- Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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Raj R, Aboobacker FN, Yadav SP, Uppuluri R, Bhat S, Choudhry D, Dua V, Kharya G, Rastogi N, Sachdev M, Khandelwal V, Swaminathan V, Bakane A, Ramakrishnan B, George B. Multicenter Outcome of Hematopoietic Stem Cell Transplantation for Primary Immune Deficiency Disorders in India. Front Immunol 2021; 11:606930. [PMID: 33488609 PMCID: PMC7819851 DOI: 10.3389/fimmu.2020.606930] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 11/03/2020] [Indexed: 11/13/2022] Open
Abstract
Background Hematopoietic stem cell transplantation (HSCT) is the curative option for many primary immune deficiency disorders (PID). In the last 5 years, increased awareness, availability of diagnostics based on flow cytometry, genetic testing, improved supportive care, use of reduced toxicity conditioning, and success of haploidentical donor HSCT have improved access to HSCT for children with PID in India. We present results on children with PID who underwent HSCT across India and the factors that influenced outcome. Patients and Methods We collected retrospective data on the outcome of HSCT for PID from seven centers. We analyzed the impact of the type of PID, conditioning regimen, time period of HSCT- before or after January 2016, graft versus host disease prophylaxis, cause of mortality and overall survival. Results A total of 228 children underwent HSCT for PID at a median age of 12 months (range, 1 to 220 months) with a median follow up of 14.4 months. Infants accounted for 51.3% of the cohort and the male female ratio was 3:1. SCID (25%) and HLH (25%) were the more frequent diagnoses. Matched family donor was available in 36.4% and 44.3% children had a haploidentical HSCT. Reduced and myeloablative conditioning regimens were used with 64% children receiving a treosulfan based conditioning regimen. Peripheral blood stem cells were the predominant graft source at 69.3%. The survival in infants (60.2%) was inferior to children aged over 1 year (75.7% p value = 0.01). Children with Wiskott Aldrich syndrome (74.3%) and chronic granulomatous disease (82.6%) had the best outcomes. The survival was superior in children receiving HSCT from a matched sibling (78%) versus an alternate donor HSCT (61% p value = 0.04). In the cohort transplanted after January 2016 survival improved from 26.8% to 77.5% (p value = 0.00). Infection remains the main cause of mortality at in over 50% children. The 5-year overall survival rate was 68%. Conclusion Survival of children with PID undergoing HSCT in India has improved dramatically in last 5 years. Alternate donor HSCT is now feasible and has made a therapeutic option accessible to all children with PID.
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Affiliation(s)
- Revathi Raj
- Department of Pediatric Hematology and Oncology, Apollo Cancer Institutes, Chennai, India
| | | | | | - Ramya Uppuluri
- Department of Pediatric Hematology and Oncology, Apollo Cancer Institutes, Chennai, India
| | - Sunil Bhat
- Department of Pediatric Hematology and Oncology, Narayana Health City, Bangalore, India
| | - Dharma Choudhry
- Department of Pediatric Hematology and Oncology, BLK Super Specialty Hospital, New Delhi, India
| | - Vikas Dua
- Department of Pediatric Hematology and Oncology, Fortis Memorial Research Institute, Gurugram, India
| | - Gaurav Kharya
- Department of Pediatric Hematology and Oncology, Indraprastha Apollo Hospital, New Delhi, India
| | - Neha Rastogi
- Pediatric Hemato-Oncology & BMT Unit, Medanta The Medicity, Gurgaon, India
| | - Mansi Sachdev
- Department of Pediatric Hematology and Oncology, Fortis Memorial Research Institute, Gurugram, India
| | - Vipin Khandelwal
- Department of Pediatric Hematology and Oncology, BLK Super Specialty Hospital, New Delhi, India
| | | | - Atish Bakane
- Department of Pediatric Hematology and Oncology, Indraprastha Apollo Hospital, New Delhi, India
| | | | - Biju George
- Department of Hematology, Christian Medical College, Vellore, India
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Villavicencio MF, Pedroza LA. Diagnosis of primary immunodeficiency diseases in the developing world: the need for education and networking with the developed world. Curr Opin Pediatr 2019; 31:835-842. [PMID: 31693595 DOI: 10.1097/mop.0000000000000834] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW Even with the evident improvement in knowledge about clinical and molecular aspects and the technology used to diagnose primary immunodeficiency diseases (PIDs), there is still a significant delay in recognition of these diseases in the developing world, specifically in Latin America. In this review, the goal is to outline the challenges that need to overcome for the diagnosis of PIDs and the optimization of resources available based on our experience. RECENT FINDINGS We describe the advances achieved in the past decade in Latin America in terms of recognition of PIDs, as well as the need for improvement. We outline the need for continued medical education, the lack of resources for laboratory testing, and how genetic testing through next-generation sequencing (that is becoming a day-to-day tool) can be achieved in the developing world. SUMMARY We aim to gather information about the limitations and challenges for the diagnosis of PIDs in a low-resource environment and the opportunities to benefit from the available advanced tools for diagnosis.
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Affiliation(s)
| | - Luis Alberto Pedroza
- Universidad San Francisco de Quito, Colegio de Ciencias de la Salud-Hospital de los Valles, Quito, Ecuador
- Department of Pediatrics, Section of Immunology, Allergy, and Rheumatology, Baylor College of Medicine, Houston, Texas, USA
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19
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Gupta A. Primary Immunodeficiency Disorders: Where Do We Stand? Indian J Pediatr 2019; 86:873-874. [PMID: 31342413 DOI: 10.1007/s12098-019-03031-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 07/08/2019] [Indexed: 11/24/2022]
Affiliation(s)
- Anju Gupta
- Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India.
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