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Acar SO, Tahta N, Al IO, Erdem M, Gözmen S, Karapınar TH, Kılınç B, Celkan T, Kirkiz S, Koçak Ü, Ören H, Yıldırım AT, Arslantaş E, Ayhan AC, Oymak Y. Sirolimus is effective and safe in childhood relapsed-refractory autoimmune cytopenias: A multicentre study. Scand J Immunol 2024:e13376. [PMID: 38741164 DOI: 10.1111/sji.13376] [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: 09/18/2023] [Accepted: 03/24/2024] [Indexed: 05/16/2024]
Abstract
Autoimmune cytopenias are a heterogeneous group of disorders characterized by immune-mediated destruction of haematopoietic cell lines. Effective and well-tolerated treatment options for relapsed-refractory immune cytopenias are limited. In this study, the aim was to evaluate the efficacy and safety of sirolimus in this disease group within the paediatric age group. The study enrolled patients in the paediatric age group who used sirolimus with a diagnosis of immune cytopenia between December 2010 and December 2020, followed at six centres in Turkey. Of the 17 patients, five (29.4%) were treated for autoimmune haemolytic anaemia (AIHA), six (35.2%) for immune thrombocytopenic purpura (ITP) and six (35.2%) for Evans syndrome (ES). The mean response time was 2.7 months (range, 0-9 months). Complete response (CR) and partial response (PR) were obtained in 13 of 17 patients (76.4%) and nonresponse (NR) in four patients (23.5%). Among the 13 patients who achieved CR, three of them were NR in the follow-up and two of them had remission with low-dose steroid and sirolimus. Thus, overall response rate (ORR) was achieved in 12 of 17 patients (70.5%). In conclusion, sirolimus may be an effective and safe option in paediatric patients with relapsed-refractory immune cytopenia.
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Affiliation(s)
- Sultan Okur Acar
- Deparment of Hematology and Oncology, University of Health Sciences Dr. Behçet Uz Children's Hospital, Izmir, Turkey
| | - Neryal Tahta
- Deparment of Hematology and Oncology, University of Health Sciences Dr. Behçet Uz Children's Hospital, Izmir, Turkey
| | - Işık Odaman Al
- Deparment of Hematology and Oncology, University of Health Sciences Dr. Behçet Uz Children's Hospital, Izmir, Turkey
| | - Melek Erdem
- Deparment of Hematology and Oncology, University of Health Sciences Dr. Behçet Uz Children's Hospital, Izmir, Turkey
| | - Salih Gözmen
- Deparment of Hematology and Oncology, University of Health Sciences Dr. Behçet Uz Children's Hospital, Izmir, Turkey
| | - Tuba Hilkay Karapınar
- Deparment of Hematology and Oncology, University of Health Sciences Dr. Behçet Uz Children's Hospital, Izmir, Turkey
| | - Burcu Kılınç
- Faculty of Medicine Hospital, Istanbul University Cerrahpaşa, Istanbul, Turkey
| | - Tiraje Celkan
- Faculty of Medicine Hospital, Istanbul University Cerrahpaşa, Istanbul, Turkey
| | - Serap Kirkiz
- Faculty of Medicine Hospital, Ankara Gazi University, Ankara, Turkey
| | - Ülker Koçak
- Faculty of Medicine Hospital, Ankara Gazi University, Ankara, Turkey
| | - Hale Ören
- Faculty of Medicine Hospital, Dokuz Eylül University, Izmir, Turkey
| | | | - Esra Arslantaş
- Başakşehir Çam and Sakura City Hospital, Istanbul, Turkey
| | | | - Yeşim Oymak
- Deparment of Hematology and Oncology, University of Health Sciences Dr. Behçet Uz Children's Hospital, Izmir, Turkey
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Aylan Gelen S, Kara B, Eser Şimsek I, Güngör M, Zengin E, Sarper N. Autoimmune Hemolytic Anemia Due to Spondyloenchondrodysplasia with Spastic Paraparesis and Intracranial Calcification due to Mutation in ACP5. J Pediatr Genet 2024; 13:50-56. [PMID: 38567175 PMCID: PMC10984710 DOI: 10.1055/s-0041-1736560] [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: 03/03/2021] [Accepted: 09/16/2021] [Indexed: 10/19/2022]
Abstract
Spondyloenchondrodysplasia (SPENCD) is a rare spondylometaphyseal skeletal dysplasia with characteristic lesions mimicking enchondromatosis and resulting in short stature. A large spectrum of immunologic abnormalities may be seen in SPENCD, including immune deficiencies and autoimmune disorders. SPENCD is caused by loss of tartrate-resistant acid phosphatase activity, due to homozygous mutations in ACP5 , playing a role in nonnucleic-acid-related stimulation/regulation of the type I interferon pathway. In this article, we presented a 19-year-old boy with SPENCD, presenting with recurrent autoimmune hemolytic anemia episodes since he was 5 years old. He had short stature, platyspondyly, metaphyseal changes, intracranial calcification, spastic paraparesis, and mild intellectual disability. He also had recurrent pneumonia attacks. The clinical diagnosis of SPENCD was confirmed by sequencing of the ACP5 gene, and a homozygous c.155A > C (p.K52T) variation was found, which was reported before as pathogenic. In conclusion, in early onset chronic autoimmune cytopenias an immune dysregulation may often have a role in the etiology. Associating findings and immunologic functions should be carefully evaluated in such patients in the light of the literature. The present case shows the importance of multisystemic evaluation for the detection of SPENCD that has a monogenic etiology.
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Affiliation(s)
- Sema Aylan Gelen
- Department of Pediatrics, Division of Pediatric Hematology, Kocaeli University Medical Faculty, Kocaeli, Türkiye
| | - Bülent Kara
- Department of Pediatrics, Division of Pediatric Neurology, Kocaeli University Medical Faculty, Kocaeli, Türkiye
| | - Isil Eser Şimsek
- Department of Pediatrics, Division of Pediatric Allergy and Immunology, Kocaeli University Medical Faculty, Kocaeli, Türkiye
| | - Mesut Güngör
- Department of Pediatrics, Division of Pediatric Neurology, Kocaeli University Medical Faculty, Kocaeli, Türkiye
| | - Emine Zengin
- Department of Pediatrics, Division of Pediatric Hematology, Kocaeli University Medical Faculty, Kocaeli, Türkiye
| | - Nazan Sarper
- Department of Pediatrics, Division of Pediatric Hematology, Kocaeli University Medical Faculty, Kocaeli, Türkiye
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Abdelwahab OA, Mechi A, Gahlan S, Hamadein FE, Kadhim H, Ismail D, Soliman Y, El-Samahy M. Efficacy and safety of mycophenolate mofetil in patients with immune thrombocytopenic purpura: a systematic review and meta-analysis. Clin Rheumatol 2024; 43:621-632. [PMID: 37981614 PMCID: PMC10834632 DOI: 10.1007/s10067-023-06820-4] [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: 08/22/2023] [Revised: 11/09/2023] [Accepted: 11/14/2023] [Indexed: 11/21/2023]
Abstract
BACKGROUND Immune thrombocytopenic purpura (ITP) is a challenging disease in its presentation and management as it may cause life-threatening hemorrhaging in vital organs and may resist several lines of treatment. This systematic review and meta-analysis aimed to evaluate the safety and efficacy of mycophenolate mofetil (MMF) in treating patients with ITP. METHODS We systematically searched four electronic databases (PubMed, Scopus, Web of Science, and Cochrane Central Register of Controlled Trials) from inception until 10 October 2022. We included all clinical trials, either controlled or single arm, and prospective and retrospective observational studies that evaluate the efficacy and safety of MMF in patients with ITP. We assessed the risk of bias using three tools (ROBINS-I, Cochrane ROB-2, and NIH), each for eligible study design. RESULTS Nine studies were included in this meta-analysis, with a total of 411 patients with ITP. We found that MMF demonstrated an overall response rate of (62.09%; 95% CI = [43.29 to 77.84]) and the complete response rate was (46.75%; 95% CI = [24.84 to 69.99]). The overall proportion of adverse events was (12%; 95% CI = [6 to 24]). After the sensitivity analysis, the overall response rate became 50%; 95% CI = [38 to 63]) and the complete response rate became (32%; 95% CI = [24 to 42]). However, MMF did not appear to affect white blood cell counts or hemoglobin levels significantly. CONCLUSION This systematic review and meta-analysis demonstrate that MMF appears to be an effective and relatively safe treatment option for patients with ITP when combined with steroids and even in those who have not responded to standard therapies (steroid-resistant cases). Further research with well-designed studies is warranted to better understand the factors influencing treatment response and to refine the use of MMF in the management of ITP. An interactive version of our analysis can be accessed from here: https://databoard.shinyapps.io/mycophenolate_meta/.
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Affiliation(s)
- Omar Ahmed Abdelwahab
- Faculty of Medicine, Al-Azhar University, Cairo, 11884, Egypt.
- Medical Research Group of Egypt, Cairo, Egypt.
| | - Ahmed Mechi
- Medical Research Group of Egypt, Cairo, Egypt
- Internal Medicine Department, Medicine College, University of Kufa, Najaf, Iraq
| | - Shereen Gahlan
- Faculty of Medicine, Al-Azhar University, Cairo, 11884, Egypt
- Medical Research Group of Egypt, Cairo, Egypt
| | | | - Hallas Kadhim
- Medical Research Group of Egypt, Cairo, Egypt
- College of Medicine, Al-Muthanna University, Samawah, Iraq
| | - Doaa Ismail
- Medical Research Group of Egypt, Cairo, Egypt
- Faculty of Medicine, Zagazig University, Zagazig, El-Sharkia, Egypt
| | - Youssef Soliman
- Medical Research Group of Egypt, Cairo, Egypt
- Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Mohamed El-Samahy
- Medical Research Group of Egypt, Cairo, Egypt
- Faculty of Medicine, Zagazig University, Zagazig, El-Sharkia, Egypt
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Zhang Z, Hu Q, Yang C, Chen M, Han B. Sirolimus is effective for primary refractory/relapsed warm autoimmune haemolytic anaemia/Evans syndrome: a retrospective single-center study. Ann Med 2023; 55:2282180. [PMID: 37967535 PMCID: PMC10653746 DOI: 10.1080/07853890.2023.2282180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 10/31/2023] [Indexed: 11/17/2023] Open
Abstract
BACKGROUND Some patients with warm autoimmune haemolytic anaemia (wAIHA) or Evans syndrome (ES) have no response to glucocorticoid or relapse. Recent studies found that sirolimus was effective in autoimmune cytopenia with a low relapse rate. METHODS Data from patients with refractory/relapsed wAIHA and ES in Peking Union Medical College Hospital from July 2016 to May 2022 who had been treated with sirolimus for at least 6 months and followed up for at least 12 months were collected retrospectively. Baseline and follow-up clinical data were recorded and the rate of complete response (CR), partial response (PR) at different time points, adverse events, relapse, outcomes, and factors that may affect the efficacy and relapse were analyzed. RESULTS There were 44 patients enrolled, with 9 (20.5%) males and a median age of 44 (range: 18-86) years. 37 (84.1%) patients were diagnosed as wAIHA, and 7 (15.9%) as ES. Patients were treated with sirolimus for a median of 23 (range: 6-80) months and followed up for a median of 25 (range: 12-80) months. 35 (79.5%) patients responded to sirolimus, and 25 (56.8%) patients achieved an optimal response of CR. Mucositis (11.4%), infection (9.1%), and alanine aminotransferase elevation (9.1%) were the most common adverse events. 5/35 patients (14.3%) relapsed at a median of 19 (range: 15-50) months. Patients with a higher sirolimus plasma trough concentration had a higher overall response (OR) and CR rate (p = 0.009, 0.011, respectively). At the time of enrolment, patients were divided into two subgroups that relapsed or refractory to glucocorticoid, and the former had poorer relapse-free survival (p = 0.032) than the other group. CONCLUSION Sirolimus is effective for patients with primary refractory/relapsed wAIHA and ES, with a low relapse rate and mild side effects. Patients with a higher sirolimus plasma trough concentration had a higher OR and CR rate, and patients who relapsed to glucocorticoid treatment had poorer relapse-free survival than those who were refractory.
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Affiliation(s)
- Zhuxin Zhang
- Department of Hematology, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Science, Beijing, China
| | - Qinglin Hu
- Department of Hematology, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Science, Beijing, China
| | - Chen Yang
- Department of Hematology, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Science, Beijing, China
| | - Miao Chen
- Department of Hematology, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Science, Beijing, China
| | - Bing Han
- Department of Hematology, Peking Union Medical College Hospital (PUMCH), Chinese Academy of Medical Science, Beijing, China
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5
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Berrueco R, González-Forster E, Deya-Martinez A, Solsona M, García-García A, Calzada-Hernández J, Yiyi L, Vlagea A, Ruiz-Llobet A, Alsina L. Mycophenolate mofetil for autoimmune cytopenias in children: high rates of response in inborn errors of immunity. Front Pediatr 2023; 11:1174671. [PMID: 37915985 PMCID: PMC10616248 DOI: 10.3389/fped.2023.1174671] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Accepted: 09/25/2023] [Indexed: 11/03/2023] Open
Abstract
Second-line treatments of autoimmune cytopenias (AC) are not well-defined in children. Mycophenolate mofetil (MMF) is an immunosuppressant agent that has been demonstrated to be safe and effective in this setting. A retrospective observational study was conducted in 18 children with prolonged AC who received MMF, in order to describe clinical and biological markers of response. The overall response rate of MMF at 20-30 mg/kg per day was 73.3%. All patients with Evans syndrome (n = 9) achieved complete response. Among the patients with monolineage AC (n = 9), those with an underlying inborn errors of immunity (IEI), tended to respond better to MMF. No biological markers related to treatment response were found. Rather, lymphocyte subpopulations proved useful for patient selection as a marker suggestive of IEI along with immunoglobulin-level determination.
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Affiliation(s)
- Rubén Berrueco
- Pediatric Hematology Department, Hospital Sant Joan de Déu, Barcelona, Spain
- Institut de Recerca Sant Joan de Déu de Barcelona (IRSJD), Barcelona, Spain
- Instituto Nacional de Investigación Biomédica en Enfermedades Raras (CIBER ER), Instituto de Salud Carlos III, Madrid, Spain
| | - Elisa González-Forster
- Pediatric Hematology Department, Hospital Sant Joan de Déu, Barcelona, Spain
- Institut de Recerca Sant Joan de Déu de Barcelona (IRSJD), Barcelona, Spain
| | - Angela Deya-Martinez
- Institut de Recerca Sant Joan de Déu de Barcelona (IRSJD), Barcelona, Spain
- Clinical Immunology and Primary Immunodeficiencies Unit, Pediatric Allergy and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain
- Clinical Immunology Unit, Hospital Sant Joan de Déu-Hospital Clínic Barcelona, Barcelona, Spain
| | - María Solsona
- Pediatric Hematology Department, Hospital Sant Joan de Déu, Barcelona, Spain
- Institut de Recerca Sant Joan de Déu de Barcelona (IRSJD), Barcelona, Spain
| | - Ana García-García
- Institut de Recerca Sant Joan de Déu de Barcelona (IRSJD), Barcelona, Spain
- Clinical Immunology and Primary Immunodeficiencies Unit, Pediatric Allergy and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain
- Clinical Immunology Unit, Hospital Sant Joan de Déu-Hospital Clínic Barcelona, Barcelona, Spain
| | - Joan Calzada-Hernández
- Pediatric Rheumatology Unit, Hospital Sant Joan de Déu, Universitat de Barcelona, Barcelona, Spain
| | - Luo Yiyi
- Clinical Immunology and Primary Immunodeficiencies Unit, Pediatric Allergy and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain
- Clinical Immunology Unit, Hospital Sant Joan de Déu-Hospital Clínic Barcelona, Barcelona, Spain
| | - Alexandru Vlagea
- Clinical Immunology Unit, Hospital Sant Joan de Déu-Hospital Clínic Barcelona, Barcelona, Spain
- Immunology Department, Centre of Biomedical Diagnosis, Hospital Clínic, Barcelona, Spain
| | - Anna Ruiz-Llobet
- Pediatric Hematology Department, Hospital Sant Joan de Déu, Barcelona, Spain
- Institut de Recerca Sant Joan de Déu de Barcelona (IRSJD), Barcelona, Spain
- Instituto Nacional de Investigación Biomédica en Enfermedades Raras (CIBER ER), Instituto de Salud Carlos III, Madrid, Spain
| | - Laia Alsina
- Institut de Recerca Sant Joan de Déu de Barcelona (IRSJD), Barcelona, Spain
- Clinical Immunology and Primary Immunodeficiencies Unit, Pediatric Allergy and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain
- Clinical Immunology Unit, Hospital Sant Joan de Déu-Hospital Clínic Barcelona, Barcelona, Spain
- Department of Surgery and Surgical Specializations, Facultat de Medicina I Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain
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6
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Xiao Z, Murakhovskaya I. Rituximab resistance in ITP and beyond. Front Immunol 2023; 14:1215216. [PMID: 37575230 PMCID: PMC10422042 DOI: 10.3389/fimmu.2023.1215216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 07/10/2023] [Indexed: 08/15/2023] Open
Abstract
The pathophysiology of immune thrombocytopenia (ITP) is complex and encompasses innate and adaptive immune responses, as well as megakaryocyte dysfunction. Rituximab is administered in relapsed cases and has the added benefit of inducing treatment-free remission in over 50% of patients. Nevertheless, the responses to this therapy are not long-lasting, and resistance development is frequent. B cells, T cells, and plasma cells play a role in developing resistance. To overcome this resistance, targeting these pathways through splenectomy and novel therapies that target FcγR pathway, FcRn, complement, B cells, plasma cells, and T cells can be useful. This review will summarize the pathogenetic mechanisms implicated in rituximab resistance and examine the potential therapeutic interventions to overcome it. This review will explore the efficacy of established therapies, as well as novel therapeutic approaches and agents currently in development.
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Affiliation(s)
| | - Irina Murakhovskaya
- Division of Hematology, Department of Hematology-Oncology, Montefiore Medical Center, Albert Einstein College of Medicine, New York City, NY, United States
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Sorin B, Fadlallah J, Garzaro M, Vigneron J, Bertinchamp R, Boutboul D, Oksenhendler E, Fieschi C, Malphettes M, Galicier L. Real-life use of mTOR inhibitor-based therapy in adults with autoimmune cytopenia highlights strong efficacy in relapsing/refractory multi-lineage autoimmune cytopenia. Ann Hematol 2023:10.1007/s00277-023-05340-0. [PMID: 37386347 DOI: 10.1007/s00277-023-05340-0] [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: 03/01/2023] [Accepted: 06/25/2023] [Indexed: 07/01/2023]
Abstract
Data on mTOR inhibitors (mTORi) in autoimmune cytopenia (AIC), in adults are scarce. We retrospectively analysed 30 cases of refractory or relapsing AIC treated with an mTORi-based therapy. Eleven warm autoimmune hemolytic anaemia, 10 autoimmune thrombocytopenia, 6 acquired pure red cell aplasia, 3 autoimmune neutropenia were included. Twenty were multilineage AIC (67%) and 21 were secondary AIC (70%). mTORi were associated with other therapies in 23 AIC (77%). Twenty-two AIC (73%) responded to mTORi-based therapy: 5 reached a partial response (17%) and 17 a complete response (57%). Survival without unfavourable outcome (failure, requirement of a new therapy, or death) was longer in multilineage AIC compared to single-lineage AIC (p = 0.049) with a median event-free survival of 48 versus 12 months. Median event-free survival was 48 months in secondary AIC and 33 months in primary AIC (p = 0.79). mTORi were discontinued in 4 patients (15%) for safety reasons and in 3 patients for patient's choice (12%). In conclusion, mTORi could be considered as an alternative or an add-on therapy in refractory or relapsing AIC in adult patients, especially in multilineage AIC.
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Affiliation(s)
- Boris Sorin
- Department of Clinical Immunology, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, Université de Paris, 1 Avenue Claude Vellefaux, 75010, Paris, France.
| | - Jehane Fadlallah
- Department of Clinical Immunology, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, Université de Paris, 1 Avenue Claude Vellefaux, 75010, Paris, France
| | - Margaux Garzaro
- Department of Clinical Immunology, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, Université de Paris, 1 Avenue Claude Vellefaux, 75010, Paris, France
| | - Julien Vigneron
- Department of Biostatistics and Medical Information, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, Université de Paris, 1 Avenue Claude Vellefaux, 75010, Paris, France
| | - Rémi Bertinchamp
- Department of Clinical Immunology, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, Université de Paris, 1 Avenue Claude Vellefaux, 75010, Paris, France
| | - David Boutboul
- Department of Clinical Immunology, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, Université de Paris, 1 Avenue Claude Vellefaux, 75010, Paris, France
| | - Eric Oksenhendler
- Department of Clinical Immunology, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, Université de Paris, 1 Avenue Claude Vellefaux, 75010, Paris, France
| | - Claire Fieschi
- Department of Clinical Immunology, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, Université de Paris, 1 Avenue Claude Vellefaux, 75010, Paris, France
| | - Marion Malphettes
- Department of Clinical Immunology, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, Université de Paris, 1 Avenue Claude Vellefaux, 75010, Paris, France
| | - Lionel Galicier
- Department of Clinical Immunology, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, Université de Paris, 1 Avenue Claude Vellefaux, 75010, Paris, France
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Autoimmune Lymphoproliferative Syndrome (ALPS) Disease and ALPS Phenotype: Are They Two Distinct Entities? Hemasphere 2023; 7:e845. [PMID: 36844186 PMCID: PMC9949771 DOI: 10.1097/hs9.0000000000000845] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 01/11/2023] [Indexed: 02/24/2023] Open
Abstract
Autoimmune lymphoproliferative syndrome (ALPS) is an inherited disorder of lymphocyte homeostasis classically due to mutation of FAS, FASL, and CASP10 genes (ALPS-FAS/CASP10). Despite recent progress, about one-third of ALPS patients does not carry classical mutations and still remains gene orphan (ALPS-U, undetermined genetic defects). The aims of the present study were to compare the clinical and immunological features of ALPS-FAS/CASP10 versus those of ALPS-U affected subjects and to deepen the genetic characteristics of this latter group. Demographical, anamnestic, biochemical data were retrieved from medical record of 46 ALPS subjects. An enlarged panel of genes (next-generation sequencing) was applied to the ALPS-U group. ALPS-U subjects showed a more complex phenotype if compared to ALPS-FAS/CASP10 group, characterized by multiorgan involvement (P = 0.001) and positivity of autoimmune markers (P = 0.02). Multilineage cytopenia was present in both groups without differences with the exception of lymphocytopenia and autoimmune neutropenia that were more frequent in ALPS-U than in the ALPS-FAS/CASP10 group (P = 0.01 and P = 0.04). First- and second-line treatments were able to control the symptoms in 100% of the ALPS-FAS/CASP10 patients, while 63% of ALPS-U needed >2 lines of treatment and remission in some cases was obtained only after target therapy. In the ALPS-U group, we found in 14 of 28 (50%) patients 19 variants; of these, 4 of 19 (21%) were known as pathogenic and 8 of 19 (42%) as likely pathogenic. A characteristic flow cytometry panel including CD3CD4-CD8-+TCRαβ+, CD3+CD25+/CD3HLADR+, TCR αβ+ B220+, and CD19+CD27+ identified the ALPS-FAS/CASP10 group. ALPS-U seems to represent a distinct entity from ALPS-FAS/CASP10; this is relevant for management and tailored treatments whenever available.
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Kumar D, Nguyen TH, Bennett CM, Prince C, Lucas L, Park S, Lawrence T, Chappelle K, Ishaq M, Waller EK, Prahalad S, Briones M, Chandrakasan S. mTOR inhibition attenuates cTfh cell dysregulation and chronic T-cell activation in multilineage immune cytopenias. Blood 2023; 141:238-243. [PMID: 36206504 PMCID: PMC9936300 DOI: 10.1182/blood.2022015966] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 09/14/2022] [Accepted: 09/26/2022] [Indexed: 02/05/2023] Open
Abstract
mTOR inhibitors such as sirolimus are increasingly used in the management of multilineage immune cytopenia (m-IC) in children. Although sirolimus is effective in improving IC, it is unclear how sirolimus affects the broader immune dysregulation associated with m-IC. We profiled T- and B-cell subsets longitudinally and measured cytokines and chemokines before and after sirolimus treatment. Eleven of the 12 patients with m-IC who tolerated sirolimus were followed for a median duration of 17 months. All patients had an improvement in IC, and sirolimus therapy did not result in significant decreases in T-, B- and NK-cell numbers. However, the expansion and activation of circulating T follicular helper and the Th1 bias noted before the initiation of sirolimus were significantly decreased. Features of chronic T-cell activation and exhaustion within effector memory compartments of CD4+ and CD8+ T cells decreased with sirolimus therapy. Corresponding to these changes, plasma levels of CXCL9 and CXCL10 also decreased. Interestingly, no significant improvement in the proportion of class-switched memory B cells or frequencies of CD4+ naive T cells were noted. Longer follow-up and additional studies are needed to validate these findings and evaluate the effect of sirolimus on B-cell maturation.
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Affiliation(s)
- Deepak Kumar
- Aflac Cancer and Blood Disorders Center, Department of Pediatrics, Children’s Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA
| | - Thinh H. Nguyen
- Aflac Cancer and Blood Disorders Center, Department of Pediatrics, Children’s Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA
| | - Carolyn M. Bennett
- Aflac Cancer and Blood Disorders Center, Department of Pediatrics, Children’s Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA
| | - Chengyu Prince
- Aflac Cancer and Blood Disorders Center, Department of Pediatrics, Children’s Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA
| | - Laura Lucas
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA
| | - Sunita Park
- Department of Pathology, Children’s Healthcare of Atlanta, Atlanta, GA
| | - Taylor Lawrence
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA
| | - Karin Chappelle
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA
| | - Mariam Ishaq
- Aflac Cancer and Blood Disorders Center, Children’s Healthcare of Atlanta, Atlanta, GA
| | - Edmund K. Waller
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA
| | - Sampath Prahalad
- Division of Pediatric Rheumatology, Department of Pediatrics, Children’s Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA
| | - Michael Briones
- Aflac Cancer and Blood Disorders Center, Department of Pediatrics, Children’s Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA
| | - Shanmuganathan Chandrakasan
- Aflac Cancer and Blood Disorders Center, Department of Pediatrics, Children’s Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA
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10
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Pacillo L, Giardino G, Amodio D, Giancotta C, Rivalta B, Rotulo GA, Manno EC, Cifaldi C, Palumbo G, Pignata C, Palma P, Rossi P, Finocchi A, Cancrini C. Targeted treatment of autoimmune cytopenias in primary immunodeficiencies. Front Immunol 2022; 13:911385. [PMID: 36052091 PMCID: PMC9426461 DOI: 10.3389/fimmu.2022.911385] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 07/15/2022] [Indexed: 11/14/2022] Open
Abstract
Primary Immunodeficiencies (PID) are a group of rare congenital disorders of the immune system. Autoimmune cytopenia (AIC) represents the most common autoimmune manifestation in PID patients. Treatment of AIC in PID patients can be really challenging, since they are often chronic, relapsing and refractory to first line therapies, thus requiring a broad variety of alternative therapeutic options. Moreover, immunosuppression should be fine balanced considering the increased susceptibility to infections in these patients. Specific therapeutic guidelines for AIC in PID patients are lacking. Treatment choice should be guided by the underlying disease. The study of the pathogenic mechanisms involved in the genesis of AIC in PID and our growing ability to define the molecular underpinnings of immune dysregulation has paved the way for the development of novel targeted treatments. Ideally, targeted therapy is directed against an overexpressed or overactive gene product or substitutes a defective protein, restoring the impaired pathway. Actually, the molecular diagnosis or a specific drug is not always available. However, defining the category of PID or the immunological phenotype can help to choose a semi-targeted therapy directed towards the suspected pathogenic mechanism. In this review we overview all the therapeutic interventions available for AIC in PID patients, according to different immunologic targets. In particular, we focus on T and/or B cells targeting therapies. To support decision making in the future, prospective studies to define treatment response and predicting/stratifying biomarkers for patients with AIC and PID are needed.
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Affiliation(s)
- Lucia Pacillo
- Academic Department of Pediatrics (DPUO), Immune and Infectious Diseases Division, Research Unit of Primary Immunodeficiencies, IRCCS Bambino Gesù Children’s Hospital, Rome, Italy
- Department of Systems Medicine, University of Tor Vergata, Rome, Italy
| | - Giuliana Giardino
- Pediatric Section, Department of Translational Medical Sciences, Federico II University, Naples, Italy
| | - Donato Amodio
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, IRCCS Bambino Gesù Children’s Hospital, Rome, Italy
| | - Carmela Giancotta
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, IRCCS Bambino Gesù Children’s Hospital, Rome, Italy
| | - Beatrice Rivalta
- Academic Department of Pediatrics (DPUO), Immune and Infectious Diseases Division, Research Unit of Primary Immunodeficiencies, IRCCS Bambino Gesù Children’s Hospital, Rome, Italy
- Department of Systems Medicine, University of Tor Vergata, Rome, Italy
| | - Gioacchino Andrea Rotulo
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, IRCCS Bambino Gesù Children’s Hospital, Rome, Italy
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy
| | - Emma Concetta Manno
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, IRCCS Bambino Gesù Children’s Hospital, Rome, Italy
| | - Cristina Cifaldi
- Academic Department of Pediatrics (DPUO), Immune and Infectious Diseases Division, Research Unit of Primary Immunodeficiencies, IRCCS Bambino Gesù Children’s Hospital, Rome, Italy
| | - Giuseppe Palumbo
- Department of Onco Hematology, IRCCS Bambino Gesù Children’s Hospital, Rome, Italy
| | - Claudio Pignata
- Pediatric Section, Department of Translational Medical Sciences, Federico II University, Naples, Italy
| | - Paolo Palma
- Department of Systems Medicine, University of Tor Vergata, Rome, Italy
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, IRCCS Bambino Gesù Children’s Hospital, Rome, Italy
| | - Paolo Rossi
- Department of Systems Medicine, University of Tor Vergata, Rome, Italy
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, IRCCS Bambino Gesù Children’s Hospital, Rome, Italy
| | - Andrea Finocchi
- Academic Department of Pediatrics (DPUO), Immune and Infectious Diseases Division, Research Unit of Primary Immunodeficiencies, IRCCS Bambino Gesù Children’s Hospital, Rome, Italy
- Department of Systems Medicine, University of Tor Vergata, Rome, Italy
| | - Caterina Cancrini
- Academic Department of Pediatrics (DPUO), Immune and Infectious Diseases Division, Research Unit of Primary Immunodeficiencies, IRCCS Bambino Gesù Children’s Hospital, Rome, Italy
- Department of Systems Medicine, University of Tor Vergata, Rome, Italy
- *Correspondence: Caterina Cancrini,
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11
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Miano M, Guardo D, Grossi A, Palmisani E, Fioredda F, Terranova P, Cappelli E, Lupia M, Traverso M, Dell'Orso G, Corsolini F, Beccaria A, Lanciotti M, Ceccherini I, Dufour C. Underlying Inborn Errors of Immunity in Patients With Evans Syndrome and Multilineage Cytopenias: A Single-Centre Analysis. Front Immunol 2022; 13:869033. [PMID: 35655776 PMCID: PMC9152001 DOI: 10.3389/fimmu.2022.869033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 04/07/2022] [Indexed: 02/05/2023] Open
Abstract
Background Evans syndrome (ES) is a rare disorder classically defined as the simultaneous or sequential presence of autoimmune haemolytic anaemia and immune thrombocytopenia, but it has also been described as the presence of at least two autoimmune cytopenias. Recent reports have shown that ES is often a manifestation of an underlying inborn error of immunity (IEI) that can benefit from specific treatments. Aims The aim of this study is to investigate the clinical and immunological characteristics and the underlying genetic background of a single-centre cohort of patients with ES. Methods Data were obtained from a retrospective chart review of patients with a diagnosis of ES followed in our centre. Genetic studies were performed with NGS analysis of 315 genes related to both haematological and immunological disorders, in particular IEI. Results Between 1985 and 2020, 40 patients (23 men, 17 women) with a median age at onset of 6 years (range 0-16) were studied. ES was concomitant and sequential in 18 (45%) and 22 (55%) patients, respectively. Nine of the 40 (8%) patients had a positive family history of autoimmunity. Other abnormal immunological features and signs of lymphoproliferation were present in 24/40 (60%) and 27/40 (67%) of cases, respectively. Seventeen out of 40 (42%) children fit the ALPS diagnostic criteria. The remaining 21 (42%) and 2 (5%) were classified as having an ALPS-like and an idiopathic disease, respectively. Eighteen patients (45%) were found to have an underlying genetic defect on genes FAS, CASP10, TNFSF13B, LRBA, CTLA4, STAT3, IKBGK, CARD11, ADA2, and LIG4. No significant differences were noted between patients with or without variant and between subjects with classical ES and the ones with other forms of multilineage cytopenias. Conclusions This study shows that nearly half of patients with ES have a genetic background being in most cases secondary to IEI, and therefore, a molecular evaluation should be offered to all patients.
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Affiliation(s)
- Maurizio Miano
- Hematology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Daniela Guardo
- Hematology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Alice Grossi
- Unità Operativa Semplice DIpartimentale (UOSD) Genetics and Genomics of Rare Diseases, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Elena Palmisani
- Hematology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | | | - Paola Terranova
- Hematology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Enrico Cappelli
- Hematology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Michela Lupia
- Hematology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Monica Traverso
- Pediatric Neurology and Muscular Diseases Unit, IRCCS Istituto Giannina Gaslini, University of Genoa, Genoa, Italy
| | - Gianluca Dell'Orso
- Stem Cell Transplantation Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Fabio Corsolini
- Laboratory of Molecular Genetics and Biobanks, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Andrea Beccaria
- Hematology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | | | - Isabella Ceccherini
- Unità Operativa Semplice DIpartimentale (UOSD) Genetics and Genomics of Rare Diseases, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Carlo Dufour
- Hematology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
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12
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Autoimmune Hemolytic Anemia in Children: Laboratory Investigation, Disease Associations, and Treatment Strategies. J Pediatr Hematol Oncol 2022; 44:71-78. [PMID: 35235549 DOI: 10.1097/mph.0000000000002438] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 01/25/2022] [Indexed: 01/19/2023]
Abstract
Autoimmune hemolytic anemia is a relatively uncommon pediatric clinical condition. As such, the evaluation and management of these cases can be challenging for even the most seasoned pediatrician. In this review, the 3 major forms of autoimmune hemolytic anemia in children will be discussed: warm autoimmune hemolytic anemia, cold agglutinin disease, and paroxysmal cold hemoglobinuria. After a general description of the laboratory approach to these entities, the pathophysiology of these disease processes, including important disease associations, will be described, and treatment strategies will be discussed. This will provide the reader with a rational approach to identifying and managing pediatric patients with these uncommon autoimmune conditions.
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13
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Mazzoni M, Dell'Orso G, Grossi A, Ceccherini I, Viola S, Terranova P, Micalizzi C, Guardo D, Massaccesi E, Palmisani E, Calvillo M, Fioredda F, Malattia C, Dufour C, Ravelli A, Miano M. Underlying CTLA4 Deficiency in a Patient With Juvenile Idiopathic Arthritis and Autoimmune Lymphoproliferative Syndrome Features Successfully Treated With Abatacept-A Case Report. J Pediatr Hematol Oncol 2021; 43:e1168-e1172. [PMID: 33625086 DOI: 10.1097/mph.0000000000002120] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 12/25/2020] [Indexed: 11/26/2022]
Abstract
BACKGROUND Functional variants of the cytotoxic T-lymphocyte antigen-4 (CTLA4) could contribute to the pathogenesis of disorders characterized by abnormal T-cell responses. CASE PRESENTATION We report a case of a 13-year-old girl who first presented with polyarticular juvenile idiopathic arthritis poorly responsive to treatment. During the following years the patient developed cytopenias, chronic lymphoproliferation, high values of T-cell receptor αβ+ CD4- CD8- double-negative T cells and defective Fas-mediated T cells apoptosis. Autoimmune lymphoproliferative syndrome was diagnosed and therapy with mycophenolate mofetil was started, with good hematological control. Due to the persistence of active polyarthritis, mycophenolate mofetil was replaced with sirolimus. In the following months the patient developed hypogammaglobulinemia and started having severe diarrhea. Histologically, duodenitis and chronic gastritis were present. Using the next generation sequencing-based gene panel screening, a CTLA4 mutation was detected (p.Cys58Serfs*13). At the age of 21 the patient developed acute autoimmune hemolytic anemia; steroid treatment in combination with abatacept were started with clinical remission of all symptoms, even arthritis. CONCLUSIONS Targeted immunologic screening and appropriate genetic tests could help in the diagnosis of a specific genetically mediated immune dysregulation syndrome, allowing to select those patients who can take advantage of target therapy, as in the case of abatacept in CTLA4 deficiency.
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Affiliation(s)
- Marta Mazzoni
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetic, and Maternal and Infant Health (DINOGMI), University of Genoa
| | | | | | | | - Stefania Viola
- Clinica Pediatrica e Reumatologia, IRCCS Istituto G. Gaslini, Genoa, Italy
| | | | | | | | | | | | | | | | - Clara Malattia
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetic, and Maternal and Infant Health (DINOGMI), University of Genoa
- Clinica Pediatrica e Reumatologia, IRCCS Istituto G. Gaslini, Genoa, Italy
| | | | - Angelo Ravelli
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetic, and Maternal and Infant Health (DINOGMI), University of Genoa
- Clinica Pediatrica e Reumatologia, IRCCS Istituto G. Gaslini, Genoa, Italy
- Sechenov First Moscow State Medical University, Moscow, Russian Federation
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14
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Sharma S, Hussain MS, Agarwal N, Bhurani D, Khan MA, Ahmad Ansari MA. Efficacy of sirolimus for treatment of autoimmune lymphoproliferative syndrome: a systematic review of open label clinical studies. Expert Opin Orphan Drugs 2021. [DOI: 10.1080/21678707.2021.1970523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Shweta Sharma
- School of Chemical and Life Sciences, Centre for Translational & Clinical Research, Jamia Hamdard, New Delhi, India
| | - Md Sarfaraj Hussain
- Institute of Pharmaceutical Sciences, Sanskriti University, Mathura, Uttar Pradesh, India
| | - Nidhi.B. Agarwal
- School of Chemical and Life Sciences, Centre for Translational & Clinical Research, Jamia Hamdard, New Delhi, India
| | - Dinesh Bhurani
- Department of Hemato-Oncology & Bone Marrow Transplantation, Rajiv Gandhi Cancer Institute & Research Centre, Rohini, New Delhi, India
| | - Mohd Ashif Khan
- School of Chemical and Life Sciences, Centre for Translational & Clinical Research, Jamia Hamdard, New Delhi, India
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15
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Cheng X, Zhao Y, Gu H, Zhao L, Zang Y, Wang X, Wu R. The first study in pediatric: Population pharmacokinetics of sirolimus and its application in Chinese children with immune cytopenia. Int J Immunopathol Pharmacol 2021; 34:2058738420934936. [PMID: 32720540 PMCID: PMC7388097 DOI: 10.1177/2058738420934936] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The narrow therapeutic index and large inter-individual variability in sirolimus pharmacokinetics (PK) make therapeutic drug monitoring (TDM) necessary. Factors responsible for PK variability are not well understood, and published PK studies do not include pediatric patients with immune cytopenia. The objective of this study was to characterize the PK of sirolimus in pediatric patients with immune cytopenia and to develop a population PK model in Chinese children and evaluate its utility for dose individualization. A total of 27 children with either acquired or congenital immune cytopenia aged 8.16 ± 3.60 years (range: 1-15 years) were included. TDM data for sirolimus were collected. The population PK model of sirolimus was described using the nonlinear mixed-effects modeling (Phoenix NLME 1.3 software) approach. Covariate analysis was applied to select candidate factors associated with PK parameters. The final model was validated using bootstrap (1000 runs) and visual predictive check (VPC) method. A one-compartment model with first-order absorption and elimination was developed. The outcome parameters were as follows: apparent clearance (CL/F) 5.63 L/h, apparent distribution volume (V/F) 144.16 L. Inter-individual variabilities for CL/F and V/F were 3.53% and 7.27%, respectively. The intra-individual variability of proportional error model was 22.45%. The covariate test found that body weight and total bilirubin were strongly associated with clearance; however, we did not find the relevance between the covariate and volume of distribution of sirolimus. Personalized dosage regimens were provided based on Bayesian method. The oral dose should be adjusted according to weight and total bilirubin. This is the first study to describe a population PK model of sirolimusin pediatric patients with immune cytopenia. Population pharmacokinetic (PPK) model-based dose individualization of sirolimus and the design of future clinical studies in children will be facilitated by the developed model in this study.
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Affiliation(s)
- Xiaoling Cheng
- Department of Pharmacy, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Yiming Zhao
- Department of Pharmacy, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Hao Gu
- Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Libo Zhao
- Department of Pharmacy, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Yannan Zang
- Department of Pharmacy, Beijing Anding Hospital, Capital Medical University, Beijing, China
| | - Xiaoling Wang
- Department of Pharmacy, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Runhui Wu
- Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
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16
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Oliveira Mendonça L, Matucci-Cerinic C, Terranova P, Casabona F, Bovis F, Caorsi R, Fioredda F, Palmisani E, Grossi A, Guardo D, Bustaffa M, Volpi S, Ceccherini I, Ravelli A, Dufour C, Miano M, Gattorno M. The challenge of early diagnosis of autoimmune lymphoproliferative syndrome in children with suspected autoinflammatory/autoimmune disorders. Rheumatology (Oxford) 2021; 61:696-704. [PMID: 33909886 DOI: 10.1093/rheumatology/keab361] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 04/12/2021] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES To test the usefulness of an extended panel of lymphocyte subsets (LS) in combination with Oliveira's diagnostic criteria for the identification of autoimmune lymphoproliferative syndrome (ALPS) in children referred to a pediatric rheumatology center. METHODS patients referred from 2015 to 2018 to our Rheumatology Unit for an autoimmune or autoinflammatory condition were retrospectively analyzed. Oliveira's required criteria (chronic lymphoproliferation and elevated DNT) were applied as first screening. Flow cytometry study included double negative CD4-CD8-TCR αβ+T lymphocytes (DNT), CD25+CD3+, HLA-DR+CD3+T cells, B220+T cells, and CD27+B cells. Data were analyzed with an univariate logistic regression analysis, followed by a multivariate analysis. Sensitivity and specificity of the Oliveira's required criteria were calculated. RESULTS 264 patients were included in the study and classified as: i) autoimmune diseases (26); ii) juvenile idiopathic arthritis (JIA) (35) iii) monogenic systemic autoinflammatory disease (SAID) (27); iv) PFAPA syndrome (100); v) systemic undefined recurrent fever (SURF) (45); vi) undetermined-SAID (14); vii) ALPS (17). Oliveira's required criteria displayed a sensitivity of 100% and specificity of 79%. When compared with other diseases the TCRαβ+B220+ lymphocytes were significantly increased in ALPS patients. The multivariate analysis revealed 5 clinical/laboratory parameters positively associated to ALPS: splenomegaly, female gender, arthralgia, elevated DNT and TCRαβ+B220+lymphocytes. CONCLUSIONS Oliveira's required criteria are useful for the early suspicion of ALPS. TCRαβ+B220+ lymphocytes should be added in the diagnostic work-up of patients referred to pediatric rheumatology unit for a suspected autoimmune or autoinflammatory condition, providing a relevant support in the early diagnosis of ALPS.
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Affiliation(s)
| | - Caterina Matucci-Cerinic
- Clinic of Pediatrics and Rheumatology, IRCCS G. Gaslini and University of Genoa
- DINOGMI, University of Genoa
| | | | | | | | - Roberta Caorsi
- Center for Autoinflammatory Diseases and Immunodeficiencies, IRCCS G. Gaslini
| | | | | | - Alice Grossi
- Laboratory of Genetics and Genomics of Rare Diseases, IRCCS G. Gaslini, Genoa, Italy
| | | | - Marta Bustaffa
- Clinic of Pediatrics and Rheumatology, IRCCS G. Gaslini and University of Genoa
- DINOGMI, University of Genoa
| | - Stefano Volpi
- Center for Autoinflammatory Diseases and Immunodeficiencies, IRCCS G. Gaslini
- DINOGMI, University of Genoa
| | - Isabella Ceccherini
- Laboratory of Genetics and Genomics of Rare Diseases, IRCCS G. Gaslini, Genoa, Italy
| | - Angelo Ravelli
- Clinic of Pediatrics and Rheumatology, IRCCS G. Gaslini and University of Genoa
| | | | | | - Marco Gattorno
- Center for Autoinflammatory Diseases and Immunodeficiencies, IRCCS G. Gaslini
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17
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Westermann-Clark E, Meehan CA, Meyer AK, Dasso JF, Amre D, Ellison M, Patel B, Betensky M, Hauk CI, Mayer J, Metts J, Leiding JW, Sriaroon P, Kumar A, Ayala I, Walter JE. Primary Immunodeficiency in Children With Autoimmune Cytopenias: Retrospective 154-Patient Cohort. Front Immunol 2021; 12:649182. [PMID: 33968040 PMCID: PMC8100326 DOI: 10.3389/fimmu.2021.649182] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 03/01/2021] [Indexed: 11/13/2022] Open
Abstract
Background Primary immunodeficiency is common among patients with autoimmune cytopenia. Objective The purpose of this study is to retrospectively identify key clinical features and biomarkers of primary immunodeficiency (PID) in pediatric patients with autoimmune cytopenias (AIC) so as to facilitate early diagnosis and targeted therapy. Methods Electronic medical records at a pediatric tertiary care center were reviewed. We selected 154 patients with both AIC and PID (n=17), or AIC alone (n=137) for inclusion in two cohorts. Immunoglobulin levels, vaccine titers, lymphocyte subsets (T, B and NK cells), autoantibodies, clinical characteristics, and response to treatment were recorded. Results Clinical features associated with AIC-PID included splenomegaly, short stature, and recurrent or chronic infections. PID patients were more likely to have autoimmune hemolytic anemia (AIHA) or Evans syndrome than AIC-only patients. The AIC-PID group was also distinguished by low T cells (CD3 and CD8), low immunoglobulins (IgG and IgA), and higher prevalence of autoantibodies to red blood cells, platelets or neutrophils. AIC diagnosis preceded PID diagnosis by 3 years on average, except among those with partial DiGeorge syndrome. AIC-PID patients were more likely to fail first-line treatment. Conclusions AIC patients, especially those with Evans syndrome or AIHA, should be evaluated for PID. Lymphocyte subsets and immune globulins serve as a rapid screen for underlying PID. Early detection of patients with comorbid PID and AIC may improve treatment outcomes. Prospective studies are needed to confirm the diagnostic clues identified and to guide targeted therapy.
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Affiliation(s)
- Emma Westermann-Clark
- Division of Allergy and Immunology, Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, FL, United States.,Division of Allergy and Immunology, Department of Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Cristina Adelia Meehan
- Division of Allergy and Immunology, Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Anna K Meyer
- Division of Allergy and Immunology, Department of Pediatrics, National Jewish Health, Denver, CO, United States.,Graduate Medical Education, University of Colorado, Denver, CO, United States
| | - Joseph F Dasso
- Division of Allergy and Immunology, Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, FL, United States.,Department of Biology, University of Tampa, Tampa, FL, United States
| | - Devendra Amre
- Division of Allergy and Immunology, Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Maryssa Ellison
- Division of Allergy and Immunology, Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Bhumika Patel
- Division of Allergy and Immunology, Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Marisol Betensky
- Cancer and Blood Disorders Institute, Johns Hopkins All Children's Hospital, St Petersburg, FL, United States.,Division of Hematology, Department of Pediatrics Johns Hopkins All Children's Hospital, St. Petersburg, FL, United States
| | - Charles Isaac Hauk
- Cancer and Blood Disorders Institute, Johns Hopkins All Children's Hospital, St Petersburg, FL, United States
| | - Jennifer Mayer
- Cancer and Blood Disorders Institute, Johns Hopkins All Children's Hospital, St Petersburg, FL, United States
| | - Jonathan Metts
- Cancer and Blood Disorders Institute, Johns Hopkins All Children's Hospital, St Petersburg, FL, United States
| | - Jennifer W Leiding
- Division of Allergy and Immunology, Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, FL, United States.,Division of Allergy/Immunology, Department of Pediatrics Johns Hopkins All Children's Hospital, St. Petersburg, FL, United States
| | - Panida Sriaroon
- Division of Allergy and Immunology, Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, FL, United States.,Division of Allergy/Immunology, Department of Pediatrics Johns Hopkins All Children's Hospital, St. Petersburg, FL, United States
| | - Ambuj Kumar
- Research Methodology and Biostatistics Core, Morssani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Irmel Ayala
- Cancer and Blood Disorders Institute, Johns Hopkins All Children's Hospital, St Petersburg, FL, United States.,Division of Hematology, Department of Pediatrics Johns Hopkins All Children's Hospital, St. Petersburg, FL, United States
| | - Jolan E Walter
- Division of Allergy and Immunology, Department of Pediatrics, Morsani College of Medicine, University of South Florida, Tampa, FL, United States.,Division of Allergy/Immunology, Department of Pediatrics Johns Hopkins All Children's Hospital, St. Petersburg, FL, United States.,Division of Allergy and Immunology, Massachusetts General Hospital for Children, Boston, MA, United States
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18
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Autoimmune Hemolytic Anemia in the Pediatric Setting. J Clin Med 2021; 10:jcm10020216. [PMID: 33435309 PMCID: PMC7828053 DOI: 10.3390/jcm10020216] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/04/2021] [Accepted: 01/05/2021] [Indexed: 12/21/2022] Open
Abstract
Autoimmune hemolytic anemia (AIHA) is a rare disease in children, presenting with variable severity. Most commonly, warm-reactive IgG antibodies bind erythrocytes at 37 °C and induce opsonization and phagocytosis mainly by the splenic macrophages, causing warm AIHA (w-AIHA). Post-infectious cold-reactive antibodies can also lead to hemolysis following the patient’s exposure to cold temperatures, causing cold agglutinin syndrome (CAS) due to IgM autoantibodies, or paroxysmal cold hemoglobinuria (PCH) due to atypical IgG autoantibodies which bind their target RBC antigen and fix complement at 4 °C. Cold-reactive antibodies mainly induce intravascular hemolysis after complement activation. Direct antiglobulin test (DAT) is the gold standard for AIHA diagnosis; however, DAT negative results are seen in up to 11% of warm AIHA, highlighting the need to pursue further evaluation in cases with a phenotype compatible with immune-mediated hemolytic anemia despite negative DAT. Prompt supportive care, initiation of treatment with steroids for w-AIHA, and transfusion if necessary for symptomatic or fast-evolving anemia is crucial for a positive outcome. w-AIHA in children is often secondary to underlying immune dysregulation syndromes and thus, screening for such disorders is recommended at presentation, before initiating treatment with immunosuppressants, to determine prognosis and optimize long-term management potentially with novel targeted medications.
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19
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Feng Y, Chen X, Cassady K, Zou Z, Yang S, Wang Z, Zhang X. The Role of mTOR Inhibitors in Hematologic Disease: From Bench to Bedside. Front Oncol 2021; 10:611690. [PMID: 33489922 PMCID: PMC7821787 DOI: 10.3389/fonc.2020.611690] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 11/27/2020] [Indexed: 02/05/2023] Open
Abstract
The mTOR pathway plays a central role in many cellular processes, such as cellular growth, protein synthesis, glucose, and lipid metabolism. Aberrant regulation of mTOR is a hallmark of many cancers, including hematological malignancies. mTOR inhibitors, such as Rapamycin and Rapamycin analogs (Rapalogs), have become a promising class of agents to treat malignant blood diseases-either alone or in combination with other treatment regimens. This review highlights experimental evidence underlying the molecular mechanisms of mTOR inhibitors and summarizes their evolving role in the treatment of hematologic disease, including leukemia, lymphoma, myeloma, immune hemocytopenia, and graft-versus-host disease (GVHD). Based on data presented in this review, we believe that mTOR inhibitors are becoming a trusted therapeutic in the clinical hematologist's toolbelt and should be considered more routinely in combination therapy for the management of hematologic disease.
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Affiliation(s)
- Yimei Feng
- Medical Center of Hematology, The Xinqiao Hospital of Third Military Medical University, Chongqing, China
- State Key Laboratory of Trauma, Burns and Combined Injury, Third Military Medical University, Chongqing, China
- Chongqing Sub-center of National Clinical Research Center for Hematologic Disease, Chongqing, China
| | - Xiaoli Chen
- Medical Center of Hematology, The Xinqiao Hospital of Third Military Medical University, Chongqing, China
- State Key Laboratory of Trauma, Burns and Combined Injury, Third Military Medical University, Chongqing, China
- Chongqing Sub-center of National Clinical Research Center for Hematologic Disease, Chongqing, China
| | - Kaniel Cassady
- Irell and Manella Graduate School of Biological Sciences of City of Hope, Duarte, CA, United States
| | - Zhongmin Zou
- Department of Chemical Defense Medicine, School of Military Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Shijie Yang
- Medical Center of Hematology, The Xinqiao Hospital of Third Military Medical University, Chongqing, China
- State Key Laboratory of Trauma, Burns and Combined Injury, Third Military Medical University, Chongqing, China
- Chongqing Sub-center of National Clinical Research Center for Hematologic Disease, Chongqing, China
| | - Zheng Wang
- Medical Center of Hematology, The Xinqiao Hospital of Third Military Medical University, Chongqing, China
- State Key Laboratory of Trauma, Burns and Combined Injury, Third Military Medical University, Chongqing, China
- Chongqing Sub-center of National Clinical Research Center for Hematologic Disease, Chongqing, China
| | - Xi Zhang
- Medical Center of Hematology, The Xinqiao Hospital of Third Military Medical University, Chongqing, China
- State Key Laboratory of Trauma, Burns and Combined Injury, Third Military Medical University, Chongqing, China
- Chongqing Sub-center of National Clinical Research Center for Hematologic Disease, Chongqing, China
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20
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Gaefke CL, Metts J, Imanirad D, Nieves D, Terranova P, Dell'Orso G, Gambineri E, Miano M, Lockey RF, Walter JE, Westermann-Clark E. Case Report: A Novel Pathogenic Missense Mutation in FAS: A Multi-Generational Case Series of Autoimmune Lymphoproliferative Syndrome. Front Pediatr 2021; 9:624116. [PMID: 33816397 PMCID: PMC8012668 DOI: 10.3389/fped.2021.624116] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 01/25/2021] [Indexed: 12/21/2022] Open
Abstract
Autoimmune Lymphoproliferative Syndrome (ALPS), commonly caused by mutations in the FAS gene, is a disease with variable penetrance. Subjects may be asymptomatic, or they may present with lymphadenopathy, splenomegaly, cytopenias, or malignancy. Prompt recognition of ALPS is needed for optimal management. We describe a multi-generational cohort presenting with clinical manifestations of ALPS, and a previously unreported heterozygous missense variant of uncertain significance in FAS (c.758G >T, p.G253V), located in exon 9. Knowledge of the underlying genetic defect permitted prompt targeted therapy to treat acute episodes of cytopenia. This cohort underscores the importance of genetic testing in subjects with clinical features of ALPS and should facilitate the reclassification of this variant as pathogenic.
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Affiliation(s)
- Claudia L Gaefke
- Department of Medicine, University of South Florida, Tampa, FL, United States
| | - Jonathan Metts
- Cancer and Blood Disorders Institute, Johns Hopkins All Children's Hospital, Saint Petersburg, FL, United States
| | - Donya Imanirad
- Department of Medicine, University of South Florida, Tampa, FL, United States
| | - Daime Nieves
- Department of Pediatrics, University of South Florida, Saint Petersburg, FL, United States
| | - Paola Terranova
- Hematology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | | | | | - Maurizio Miano
- Hematology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Richard F Lockey
- Department of Medicine, University of South Florida, Tampa, FL, United States
| | - Jolan Eszter Walter
- Department of Pediatrics, University of South Florida, Saint Petersburg, FL, United States.,Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
| | - Emma Westermann-Clark
- Department of Medicine, University of South Florida, Tampa, FL, United States.,Department of Pediatrics, University of South Florida, Saint Petersburg, FL, United States
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21
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Maggiore R, Grossi A, Fioredda F, Palmisani E, Terranova P, Cappelli E, Lanza T, Pierri F, Guardo D, Calvillo M, Micalizzi C, Beccaria A, Coccia MC, Arrigo S, Dufour C, Ceccherini I, Miano M. Unusual Late-onset Enteropathy in a Patient With Lipopolysaccharide-responsive Beige-like Anchor Protein Deficiency. J Pediatr Hematol Oncol 2020; 42:e768-e771. [PMID: 31876783 DOI: 10.1097/mph.0000000000001708] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
In recent years, monogenic causes of immune dysregulation syndromes, with variable phenotypes, have been documented. Mutations in the lipopolysaccharide-responsive beige-like anchor (LRBA) protein are associated with common variable immunodeficiency, autoimmunity, chronic enteropathy, and immune dysregulation disorders. The LRBA protein prevents degradation of cytotoxic T-lymphocyte antigen 4 (CTLA4) protein, thus inhibiting immune responses. Both LRBA and CTLA4 deficiencies usually present with immune dysregulation, mostly characterized by autoimmunity and lymphoproliferation. In this report, we describe a patient with an atypical clinical onset of LRBA deficiency and the patient's response to abatacept, a fusion protein-drug that mimics the action of CTLA4.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Serena Arrigo
- Gastroenterology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
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22
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Thrombotic thrombocytopenic purpura and defective apoptosis due to CASP8/10 mutations: the role of mycophenolate mofetil. Blood Adv 2020; 3:3432-3435. [PMID: 31714957 DOI: 10.1182/bloodadvances.2019000575] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 09/17/2019] [Indexed: 01/19/2023] Open
Abstract
Key Points
Immunological dysregulation may underlie unusual autoimmune diseases, which also deserve to be investigated from a genetic point of view.
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23
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Li H, Ji J, Du Y, Huang Y, Gu H, Chen M, Wu R, Han B. Sirolimus is effective for primary relapsed/refractory autoimmune cytopenia: a multicenter study. Exp Hematol 2020; 89:87-95. [PMID: 32771553 DOI: 10.1016/j.exphem.2020.08.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 07/31/2020] [Accepted: 08/02/2020] [Indexed: 10/23/2022]
Abstract
Autoimmune cytopenia includes autoimmune hemolytic anemia (AIHA), immune thrombocytopenia (ITP), and Evans syndrome (ES) caused by abnormal activation of autoimmunity and has a considerable refractory/relapse rate. To evaluate the efficacy and toxicity of sirolimus of primary relapsed/refractory autoimmune cytopenia, records of 45 patients with primary relapsed/refractory AIHA, ES, or ITP from October 2016 to January 2019 in two institutions, were collected; there were 3 pediatric patients and 42 adult patients. The median age at diagnosis was 31 (1-84) years. Patients were treated for a median of 14 (6-39) months and followed-up for a median of 18 (10-40) months. Thirty-eight patients responded to sirolimus, with 28 complete responses (CRs) and a median of 2 (2-5) months to response. Five patients had mucositis; the incidences of other adverse events were all less than 5%. Four patients relapsed, making the CR and overall response rate 46.7% and 75.6% at the end of follow-up. There were no differences in patient age, sex, time from diagnosis to sirolimus, serum sirolimus concentration, and disease distribution between CR and non-CR patients, or between responders and nonresponders, though AIHA patients were likely to relapse less and respond better. In conclusion, sirolimus is effective for patients with primary relapsed/refractory autoimmune cytopenia with a low relapse rate and good tolerance.
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Affiliation(s)
- Hongmin Li
- Department of Hematology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiang Ji
- Department of Hematology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yali Du
- Department of Hematology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yuzhou Huang
- Department of Hematology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hao Gu
- Hematology-Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Miao Chen
- Department of Hematology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - RunHui Wu
- Hematology-Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Bing Han
- Department of Hematology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
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24
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Sirolimus for treatment of refractory primary warm autoimmune hemolytic anemia in children. Blood Cells Mol Dis 2020; 83:102427. [PMID: 32220699 DOI: 10.1016/j.bcmd.2020.102427] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 03/15/2020] [Indexed: 12/20/2022]
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25
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Ducassou S, Gourdonneau A, Fernandes H, Leverger G, Pasquet M, Fouyssac F, Bayart S, Bertrand Y, Michel G, Jeziorski E, Thomas C, Abouchallah W, Viard F, Guitton C, Cheikh N, Pellier I, Carausu L, Droz C, Leblanc T, Aladjidi N. Second-line treatment trends and long-term outcomes of 392 children with chronic immune thrombocytopenic purpura: the French experience over the past 25 years. Br J Haematol 2020; 189:931-942. [PMID: 32130726 DOI: 10.1111/bjh.16448] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 10/22/2019] [Indexed: 01/19/2023]
Abstract
Childhood chronic immune thrombocytopenic purpura (cITP) is a rare disease. In severe cases, there is no evidence for the optimal therapeutic strategy. Our aim was to describe the real-life management of non-selected children with cITP at diagnosis. Since 2004, patients less than 18 years old with cITP have been enrolled in the national prospective cohort, OBS'CEREVANCE. From 1990 to 2014, in 29 centres, 392 children were diagnosed with cITP. With a median follow-up of six years (2·0-25), 45% did not need second-line therapy, and 55% (n = 217) received one or more second lines, mainly splenectomy (n = 108), hydroxychloroquine (n = 61), rituximab (n = 61) or azathioprine (n = 40). The overall five-year further second-line treatment-free survival was 56% [95% CI 49·5-64.1]. The use of splenectomy significantly decreased over time. Hydroxychloroquine was administered to children with positive antinuclear antibodies, more frequently older and girls, and reached 55% efficacy. None of the patients died. Ten years after the initial diagnosis, 55% of the 56 followed children had achieved complete remission. Children with cITP do not need second-line treatments in 45% of cases. Basing the treatment decision on the pathophysiological pathways is challenging, as illustrated by ITP patients with positive antinuclear antibodies treated with hydroxychloroquine.
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Affiliation(s)
- Stéphane Ducassou
- Pediatric Hematology Unit, CIC1401, INSERM CICP, University Hospital of Bordeaux, Bordeaux, France.,Centre de Référence National des Cytopénies Autoimmunes de l'enfant (CEREVANCE), University Hospital of Bordeaux, Bordeaux, France.,University of Bordeaux, INSERM U1218, Bordeaux, France
| | - Anne Gourdonneau
- Pediatric Hematology Unit, CIC1401, INSERM CICP, University Hospital of Bordeaux, Bordeaux, France
| | - Helder Fernandes
- Centre de Référence National des Cytopénies Autoimmunes de l'enfant (CEREVANCE), University Hospital of Bordeaux, Bordeaux, France
| | - Guy Leverger
- Centre de Recherche Saint Antoine UMR_S 938, Service d'Hématologie Oncologie Pédiatrique, Centre de Référence National des Cytopénies Auto-immunes de l'enfant (CEREVANCE), AP-HP, Hôpital Armand Trousseau, Sorbonne Université, Paris, France
| | - Marlène Pasquet
- Pediatric Hematology Unit, University Hospital of Toulouse, Toulouse, France
| | - Fanny Fouyssac
- Pediatric Hematology Unit, University Hospital of Nancy, Nancy, France
| | - Sophie Bayart
- Pediatric Hematology Unit, University Hospital of Rennes, Rennes, France
| | - Yves Bertrand
- Pediatric Hematology Unit, Institute of Pediatric Hematology and Oncology, Claude Bernard University Lyon, Lyon, France
| | - Gérard Michel
- Pediatric Hematology Unit, University Hospital Timone Enfants, Marseille, France
| | - Eric Jeziorski
- Department of Pediatrics, Hôpital Arnaud de Villeneuve, University Hospital of Montpellier, Montpellier, France
| | - Caroline Thomas
- Pediatric Hematology Unit, University Hospital of Nantes, Nantes, France
| | - Wadih Abouchallah
- Pediatric Hematology Unit, University Hospital of Lille, Lille, France
| | - Florence Viard
- Centre de Référence National des Cytopénies Autoimmunes de l'enfant (CEREVANCE), University Hospital of Bordeaux, Bordeaux, France
| | - Corinne Guitton
- Department of Pediatrics, University Hospital of Bicêtre, Le Kremlin-Bicêtre, France
| | - Nathalie Cheikh
- Pediatric Hematology Unit, University Hospital of Besançon, Besançon, France
| | - Isabelle Pellier
- Pediatric Hematology Unit, University Hospital of Angers, Angers, France
| | - Liana Carausu
- Pediatric Hematology Unit, University Hospital of Brest, Brest, France
| | - Cécile Droz
- Inserm CIC1401, Bordeaux PharmacoEpi, University of Bordeaux, Bordeaux, France
| | - Thierry Leblanc
- Hematology Unit, Centre de référeNce National des Cytopénies Auto-Immunes de l'enfant (CEREVANCE), APHP - Hôpital Robert Debré, Paris, France
| | - Nathalie Aladjidi
- Pediatric Hematology Unit, CIC1401, INSERM CICP, University Hospital of Bordeaux, Bordeaux, France.,Centre de Référence National des Cytopénies Autoimmunes de l'enfant (CEREVANCE), University Hospital of Bordeaux, Bordeaux, France
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26
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Diagnosis and treatment of autoimmune hemolytic anemia in adults: Recommendations from the First International Consensus Meeting. Blood Rev 2019; 41:100648. [PMID: 31839434 DOI: 10.1016/j.blre.2019.100648] [Citation(s) in RCA: 226] [Impact Index Per Article: 45.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 11/21/2019] [Accepted: 11/25/2019] [Indexed: 12/15/2022]
Abstract
Autoimmune hemolytic anemias (AIHAs) are rare and heterogeneous disorders characterized by the destruction of red blood cells through warm or cold antibodies. There is currently no licensed treatment for AIHA. Due to the paucity of clinical trials, recommendations on diagnosis and therapy have often been based on expert opinions and some national guidelines. Here we report the recommendations of the First International Consensus Group, who met with the aim to review currently available data and to provide standardized diagnostic criteria and therapeutic approaches as well as an overview of novel therapies. Exact diagnostic workup is important because symptoms, course of disease, and therapeutic management relate to the type of antibody involved. Monospecific direct antiglobulin test is considered mandatory in the diagnostic workup, and any causes of secondary AIHA have to be diagnosed. Corticosteroids remain first-line therapy for warm-AIHA, while the addition of rituximab should be considered early in severe cases and if no prompt response to steroids is achieved. Rituximab with or without bendamustine should be used in the first line for patients with cold agglutinin disease requiring therapy. We identified a need to establish an international AIHA network. Future recommendations should be based on prospective clinical trials whenever possible.
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27
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Affiliation(s)
- Robert A Brodsky
- From the Division of Hematology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore
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28
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Miano M, Cappelli E, Pezzulla A, Venè R, Grossi A, Terranova P, Palmisani E, Maggiore R, Guardo D, Lanza T, Calvillo M, Micalizzi C, Pierri F, Vernarecci C, Beccaria A, Corsolini F, Lanciotti M, Russo G, Ceccherini I, Dufour C, Fioredda F. FAS‐mediated apoptosis impairment in patients with ALPS/ALPS‐like phenotype carrying variants on
CASP10
gene. Br J Haematol 2019; 187:502-508. [DOI: 10.1111/bjh.16098] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 05/21/2019] [Indexed: 02/05/2023]
Affiliation(s)
- Maurizio Miano
- Haematology Unit IRCCS Istituto Giannina Gaslini GenoaItaly
| | | | - Agnese Pezzulla
- Haematology Unit IRCCS Istituto Giannina Gaslini GenoaItaly
- Pediatric Hematology/Oncology Unit University of Catania CataniaItaly
| | - Roberta Venè
- Molecular Oncology and Angiogenesis Unit IRCCS Ospedale Policlinico San Martino GenoaItaly
| | - Alice Grossi
- Genetic Unit IRCCS Istituto Giannina Gaslini GenoaItaly
| | | | | | | | - Daniela Guardo
- Haematology Unit IRCCS Istituto Giannina Gaslini GenoaItaly
- Haematology Clinic, Department of Internal Medicine (DiMI) University of Genoa, IRCCS AOU S. Martino‐IST GenoaItaly
| | - Tiziana Lanza
- Haematology Unit IRCCS Istituto Giannina Gaslini GenoaItaly
| | | | | | | | | | | | - Fabio Corsolini
- Laboratory of Molecular Genetics and Biobanks IRCCS Istituto Giannina Gaslini Genoa Italy
| | | | - Giovanna Russo
- Pediatric Hematology/Oncology Unit University of Catania CataniaItaly
| | | | - Carlo Dufour
- Haematology Unit IRCCS Istituto Giannina Gaslini GenoaItaly
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29
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Amaya-Uribe L, Rojas M, Azizi G, Anaya JM, Gershwin ME. Primary immunodeficiency and autoimmunity: A comprehensive review. J Autoimmun 2019; 99:52-72. [PMID: 30795880 DOI: 10.1016/j.jaut.2019.01.011] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 01/24/2019] [Accepted: 01/28/2019] [Indexed: 02/06/2023]
Abstract
The primary immunodeficiency diseases (PIDs) include many genetic disorders that affect different components of the innate and adaptive responses. The number of distinct genetic PIDs has increased exponentially with improved methods of detection and advanced laboratory methodology. Patients with PIDs have an increased susceptibility to infectious diseases and non-infectious complications including allergies, malignancies and autoimmune diseases (ADs), the latter being the first manifestation of PIDs in several cases. There are two types of PIDS. Monogenic immunodeficiencies due to mutations in genes involved in immunological tolerance that increase the predisposition to develop autoimmunity including polyautoimmunity, and polygenic immunodeficiencies characterized by a heterogeneous clinical presentation that can be explained by a complex pathophysiology and which may have a multifactorial etiology. The high prevalence of ADs in PIDs demonstrates the intricate relationships between the mechanisms of these two conditions. Defects in central and peripheral tolerance, including mutations in AIRE and T regulatory cells respectively, are thought to be crucial in the development of ADs in these patients. In fact, pathology that leads to PID often also impacts the Treg/Th17 balance that may ease the appearance of a proinflammatory environment, increasing the odds for the development of autoimmunity. Furthermore, the influence of chronic and recurrent infections through molecular mimicry, bystander activation and super antigens activation are supposed to be pivotal for the development of autoimmunity. These multiple mechanisms are associated with diverse clinical subphenotypes that hinders an accurate diagnosis in clinical settings, and in some cases, may delay the selection of suitable pharmacological therapies. Herein, a comprehensively appraisal of the common mechanisms among these conditions, together with clinical pearls for treatment and diagnosis is presented.
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Affiliation(s)
- Laura Amaya-Uribe
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - Manuel Rojas
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia; Doctoral Program in Biomedical Sciences, Universidad Del Rosario, Bogota, Colombia
| | - Gholamreza Azizi
- Non-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Juan-Manuel Anaya
- Center for Autoimmune Diseases Research (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Bogota, Colombia
| | - M Eric Gershwin
- Division of Rheumatology, Allergy and Clinical Immunology, University of California Davis, School of Medicine, Davis, CA, USA.
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30
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Neurological Involvement in Childhood Evans Syndrome. J Clin Immunol 2019; 39:171-181. [PMID: 30671780 DOI: 10.1007/s10875-019-0594-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 01/14/2019] [Indexed: 12/19/2022]
Abstract
PURPOSE Immune thrombocytopenic purpura (ITP) and autoimmune hemolytic anemia (AIHA) are associated in the definition of Evans syndrome (ES). The occurrence of neurological involvement in this population is poorly described and suggests an underlying primary immunodeficiency (PID). We aimed to describe the clinical manifestations, evolution, and PID profiles of these patients. METHODS OBS'CEREVANCE is a French, nationwide prospective cohort that includes children with chronic ITP, AIHA, and ES. Patients with a neurological involvement were described. Centralized radiological and pathological reviews and genetic analyses were performed. RESULTS On October 2016, eight patients (7/181 ES, 1/371 AIHA, and 0/615 ITP) were identified, all male, with a median age (range) at cytopenia onset of 11.5 years (1.6-15.8). Neurological symptoms appeared with a median delay of 6 years (2.5-18) after cytopenia and were polymorphic: seizures (n = 4), cranial nerve palsy (n = 2), Brown-Sequard syndrome (n = 2), intracranial pressure (n = 2), vertigo (n = 1), and/or sensory neuropathy (n = 1). Magnetic resonance imaging (MRI) showed inflammatory lesions, confirmed by pathology for five patients with macrophagic or lymphoplasmocytic infiltrates. All patients had other relevant immunopathological manifestations: pulmonary nodules (n = 6), lymphoproliferation (n = 4), abnormal immunophenotype (n = 8), and hypogammaglobulinemia (n = 7). Treatment consisted of steroids that improved symptomatology and MRI. Five patients relapsed and three had an asymptomatic radiological progression. A PID was identified in 3/8 patients: 22q11.2 microdeletion (n = 1) and CTLA deficiency (n = 2). CONCLUSION Neurological involvement is a rare and severe late event in the course of childhood ES, which can reveal an underlying PID. Imaging and pathology examination highlight a causative immune dysregulation that may guide targeted therapeutic strategies.
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31
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Hill A, Hill QA. Autoimmune hemolytic anemia. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2018; 2018:382-389. [PMID: 30504336 PMCID: PMC6246027 DOI: 10.1182/asheducation-2018.1.382] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The diagnosis of autoimmune hemolytic anemia (AIHA) can be made with a stepwise approach that aims to identify laboratory and clinical evidence of hemolysis and then determine the immune nature of hemolysis with the direct anti-globulin test. Once alternative causes for these findings have been excluded, AIHA is established, and the clinician must search for secondary causes, as well as identify the type of AIHA. Rituximab is now the preferred second-line treatment for primary warm AIHA and first-line treatment for primary cold agglutinin disease (CAD), either as monotherapy or combined with bendamustine. Complement inhibitors have shown utility in stabilizing AIHA patients with acute severe hemolysis. Future prospects are discussed and include the C1s inhibitor BIVV009 (sutimlimab) that is now entering phase 3 studies for CAD.
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Affiliation(s)
- Anita Hill
- Department of Haematology, Leeds Teaching Hospitals, Leeds, United Kingdom
| | - Quentin A Hill
- Department of Haematology, Leeds Teaching Hospitals, Leeds, United Kingdom
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32
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Jaime-Pérez JC, Aguilar-Calderón PE, Salazar-Cavazos L, Gómez-Almaguer D. Evans syndrome: clinical perspectives, biological insights and treatment modalities. J Blood Med 2018; 9:171-184. [PMID: 30349415 PMCID: PMC6190623 DOI: 10.2147/jbm.s176144] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Evans syndrome (ES) is a rare and chronic autoimmune disease characterized by autoimmune hemolytic anemia and immune thrombocytopenic purpura with a positive direct anti-human globulin test. It is classified as primary and secondary, with the frequency in patients with autoimmune hemolytic anemia being 37%–73%. It predominates in children, mainly due to primary immunodeficiencies or autoimmune lymphoproliferative syndrome. ES during pregnancy is associated with high fetal morbidity, including severe hemolysis and intracranial bleeding with neurological sequelae and death. The clinical presentation can include fatigue, pallor, jaundice and mucosal bleeding, with remissions and exacerbations during the person’s lifetime, and acute manifestations as catastrophic bleeding and massive hemolysis. Recent molecular theories explaining the physiopathology of ES include deficiencies of CTLA-4, LRBA, TPP2 and a decreased CD4/CD8 ratio. As in other autoimmune cytopenias, there is no established evidence-based treatment and steroids are the first-line therapy, with intravenous immunoglobulin administered as a life-saving resource in cases of severe immune thrombocytopenic purpura manifestations. Second-line treatment for refractory ES includes rituximab, mofetil mycophenolate, cyclosporine, vincristine, azathioprine, sirolimus and thrombopoietin receptor agonists. In cases unresponsive to immunosuppressive agents, hematopoietic stem cell transplantation has been successful, although it is necessary to consider its potential serious adverse effects. In conclusion, ES is a disease with a heterogeneous course that remains challenging to patients and physicians, with prospective clinical trials needed to explore potential targeted therapy to achieve an improved long-term response or even a cure.
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Affiliation(s)
- José Carlos Jaime-Pérez
- Department of Hematology, Internal Medicine Division, Dr José E González University Hospital, School of Medicine of the Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México,
| | - Patrizia Elva Aguilar-Calderón
- Department of Hematology, Internal Medicine Division, Dr José E González University Hospital, School of Medicine of the Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México,
| | - Lorena Salazar-Cavazos
- Department of Hematology, Internal Medicine Division, Dr José E González University Hospital, School of Medicine of the Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México,
| | - David Gómez-Almaguer
- Department of Hematology, Internal Medicine Division, Dr José E González University Hospital, School of Medicine of the Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, México,
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33
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Rotz SJ, Ware RE, Kumar A. Diagnosis and management of chronic and refractory immune cytopenias in children, adolescents, and young adults. Pediatr Blood Cancer 2018; 65:e27260. [PMID: 29856527 DOI: 10.1002/pbc.27260] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 04/26/2018] [Accepted: 05/06/2018] [Indexed: 12/13/2022]
Abstract
Children, adolescents, and young adults with chronic refractory autoimmune cytopenias represent a rare but challenging group of patients, who are managed frequently by pediatric hematologists. Novel diagnostic tests and genomic discoveries are refining historical diagnoses of Evans syndrome and common variable immunodeficiency, while also elucidating the cellular and molecular basis for these disorders. Genetic characterization of chronic and refractory autoimmune cytopenias has led to targeted therapies with improved clinical outcomes and fewer off-target toxicities. In this review, we focus on the appropriate diagnostic workup, expanded genetic testing, and novel treatment opportunities that are available for these challenging patients.
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Affiliation(s)
- Seth J Rotz
- Department of Pediatric Hematology, Oncology, and Blood and Marrow Transplantation, Cleveland Clinic Children's Hospital, Cleveland, Ohio
| | - Russell E Ware
- Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
- Division of Hematology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Ashish Kumar
- Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
- Division of Bone Marrow Transplantation and Immune Deficiency, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
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34
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Miano M, Rotulo GA, Palmisani E, Giaimo M, Fioredda F, Pierri F, Pezzulla A, Licciardello M, Terranova P, Lanza T, Cappelli E, Maggiore R, Calvillo M, Micalizzi C, Russo G, Dufour C. Sirolimus as a rescue therapy in children with immune thrombocytopenia refractory to mycophenolate mofetil. Am J Hematol 2018; 93:E175-E177. [PMID: 29675829 DOI: 10.1002/ajh.25119] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 04/13/2018] [Accepted: 04/17/2018] [Indexed: 01/17/2023]
Affiliation(s)
- Maurizio Miano
- Hematology Unit, IRCCS Istituto Giannina Gaslini; Genoa Italy
| | | | - Elena Palmisani
- Hematology Unit, IRCCS Istituto Giannina Gaslini; Genoa Italy
| | | | | | - Filomena Pierri
- Hematology Unit, IRCCS Istituto Giannina Gaslini; Genoa Italy
| | - Agnese Pezzulla
- Haematology/Oncology Unit, Dept of Pediatrics; University of Catania- Catania; Italy
| | - Maria Licciardello
- Haematology/Oncology Unit, Dept of Pediatrics; University of Catania- Catania; Italy
| | - Paola Terranova
- Hematology Unit, IRCCS Istituto Giannina Gaslini; Genoa Italy
| | - Tiziana Lanza
- Hematology Unit, IRCCS Istituto Giannina Gaslini; Genoa Italy
| | - Enrico Cappelli
- Hematology Unit, IRCCS Istituto Giannina Gaslini; Genoa Italy
| | | | | | | | - Giovanna Russo
- Haematology/Oncology Unit, Dept of Pediatrics; University of Catania- Catania; Italy
| | - Carlo Dufour
- Hematology Unit, IRCCS Istituto Giannina Gaslini; Genoa Italy
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35
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Jiang H, Zhang H, Wang Y, Qi W, Cao Q, Xing L, Fu R, Shao Z, Wang H. Sirolimus for the treatment of multi-resistant pure red cell aplasia. Br J Haematol 2018; 184:1055-1058. [PMID: 29741762 DOI: 10.1111/bjh.15245] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Huijuan Jiang
- Department of Haematology; General Hospital; Tianjin Medical University; Tianjin China
| | - Huiqin Zhang
- Department of Haematology; General Hospital; Tianjin Medical University; Tianjin China
| | - Yihao Wang
- Department of Haematology; General Hospital; Tianjin Medical University; Tianjin China
| | - Weiwei Qi
- Department of Haematology; General Hospital; Tianjin Medical University; Tianjin China
| | - Qiuying Cao
- Department of Haematology; General Hospital; Tianjin Medical University; Tianjin China
| | - Limin Xing
- Department of Haematology; General Hospital; Tianjin Medical University; Tianjin China
| | - Rong Fu
- Department of Haematology; General Hospital; Tianjin Medical University; Tianjin China
| | - Zonghong Shao
- Department of Haematology; General Hospital; Tianjin Medical University; Tianjin China
| | - Huaquan Wang
- Department of Haematology; General Hospital; Tianjin Medical University; Tianjin China
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36
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Palmisani E, Miano M, Micalizzi C, Calvillo M, Pierri F, Terranova P, Lanza T, Lanciotti M, Riccardi F, Todiere A, Zanardi S, Caviglia I, Dufour C, Fioredda F. Clinical features and therapeutic challenges of cytopenias belonging to alps and alps-related (ARS) phenotype. Br J Haematol 2018. [PMID: 29527658 DOI: 10.1111/bjh.15178] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Elena Palmisani
- Haematology Unit, IRCCS-Istituto Giannina Gaslini, Genoa, Italy
| | - Maurizio Miano
- Haematology Unit, IRCCS-Istituto Giannina Gaslini, Genoa, Italy
| | | | | | - Filomena Pierri
- Haematology Unit, IRCCS-Istituto Giannina Gaslini, Genoa, Italy
| | - Paola Terranova
- Haematology Unit, IRCCS-Istituto Giannina Gaslini, Genoa, Italy
| | - Tiziana Lanza
- Haematology Unit, IRCCS-Istituto Giannina Gaslini, Genoa, Italy
| | | | | | - Andrea Todiere
- Haematology Unit, IRCCS-Istituto Giannina Gaslini, Genoa, Italy
| | - Sabrina Zanardi
- Epidemiology and Biostatistics Unit, IRCCS-Istituto Giannina Gaslini, Genoa, Italy
| | - Ilaria Caviglia
- Infectious Disease Unit, IRCCS-Istituto Giannina Gaslini, Genoa, Italy
| | - Carlo Dufour
- Haematology Unit, IRCCS-Istituto Giannina Gaslini, Genoa, Italy
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37
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Affiliation(s)
- Carlo Dufour
- Haematology Unit. I.R.C.C.S. G. Gaslini Children's Hospital, Genova, Italy. The Scientific Working Group on Granulocytes and Monocyte disorders of the EHA
| | - Maurizio Miano
- Haematology Unit. I.R.C.C.S. G. Gaslini Children's Hospital, Genova, Italy
| | - Francesca Fioredda
- Haematology Unit. I.R.C.C.S. G. Gaslini Children's Hospital, Genova, Italy. The Scientific Working Group on Granulocytes and Monocyte disorders of the EHA
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38
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Abstract
Autoimmune lymphoproliferative syndrome (ALPS) is an inherited syndrome characterized by abnormal lymphocyte survival caused by failure of apoptotic mechanisms to maintain lymphocyte homeostasis. This failure leads to the clinical manifestations of non-infectious and non-malignant lymphadenopathy, splenomegaly, and autoimmune pathology, most commonly, autoimmune cytopenias. Since ALPS was first characterized in the early 1990s, insights in disease biology have improved both diagnosis and management of this syndrome. Sirolimus is the best-studied and most effective corticosteroid-sparing therapy for ALPS and should be considered first-line for patients in need of chronic treatment. This review highlights practical clinical considerations for the diagnosis and management of ALPS. Further studies could reveal new proteins and regulatory pathways that are critical for lymphocyte activation and apoptosis.
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Affiliation(s)
- Karen Bride
- Division of Oncology, The Children’s Hospital of Philadelphia, Philadelphia, PA, USA
| | - David Teachey
- Division of Oncology, The Children’s Hospital of Philadelphia, Philadelphia, PA, USA
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39
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Walter JE, Farmer JR, Foldvari Z, Torgerson TR, Cooper MA. Mechanism-Based Strategies for the Management of Autoimmunity and Immune Dysregulation in Primary Immunodeficiencies. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2017; 4:1089-1100. [PMID: 27836058 DOI: 10.1016/j.jaip.2016.08.004] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 08/01/2016] [Accepted: 08/19/2016] [Indexed: 01/27/2023]
Abstract
A broad spectrum of autoimmunity is now well described in patients with primary immunodeficiencies (PIDs). Management of autoimmune disease in the background of PID is particularly challenging given the seemingly discordant goals of immune support and immune suppression. Our growing ability to define the molecular underpinnings of immune dysregulation has facilitated novel targeted therapeutics. This review focuses on mechanism-based treatment strategies for the most common autoimmune and inflammatory complications of PID including autoimmune cytopenias, rheumatologic disease, and gastrointestinal disease. We aim to provide guidance regarding the rational use of these agents in the complex PID patient population.
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Affiliation(s)
- Jolan E Walter
- Department of Pediatrics & Medicine, University of South Florida at Johns Hopkins All Children's Hospital, St Petersburg, Fla; Division of Pediatric Allergy & Immunology, Massachusetts General Hospital for Children, Boston, Mass; Division of Immunology, Boston Children's Hospital, Boston, Mass.
| | - Jocelyn R Farmer
- Department of Allergy & Immunology, Massachusetts General Hospital, Boston, Mass
| | - Zsofia Foldvari
- Department of Cancer Immunology, Oslo University Hospital Radiumhospitalet, Oslo, Norway; K. G. Jebsen Centers for Cancer Immunotherapy and for Inflammation Research, Institute for Clinical Medicine, University of Oslo, Oslo, Norway
| | - Troy R Torgerson
- Department of Pediatrics, University of Washington School of Medicine, Seattle, Wash
| | - Megan A Cooper
- Department of Pediatrics, Division of Rheumatology, Washington University School of Medicine, St Louis, Mo
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40
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Rae W, Ward D, Mattocks CJ, Gao Y, Pengelly RJ, Patel SV, Ennis S, Faust SN, Williams AP. Autoimmunity/inflammation in a monogenic primary immunodeficiency cohort. Clin Transl Immunology 2017; 6:e155. [PMID: 28983403 PMCID: PMC5628267 DOI: 10.1038/cti.2017.38] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 06/09/2017] [Accepted: 07/21/2017] [Indexed: 12/13/2022] Open
Abstract
Primary immunodeficiencies (PIDs) are rare inborn errors of immunity that have a heterogeneous phenotype that can include severe susceptibility to life-threatening infections from multiple pathogens, unique sensitivity to a single pathogen, autoimmune/inflammatory (AI/I) disease, allergies and/or malignancy. We present a diverse cohort of monogenic PID patients with and without AI/I diseases who underwent clinical, genetic and immunological phenotyping. Novel pathogenic variants were identified in IKBKG, CTLA4, NFKB1, GATA2, CD40LG and TAZ as well as previously reported pathogenic variants in STAT3, PIK3CD, STAT1, NFKB2 and STXBP2. AI/I manifestations were frequently encountered in PIDs, including at presentation. Autoimmunity/inflammation was multisystem in those effected, and regulatory T cell (Treg) percentages were significantly decreased compared with those without AI/I manifestations. Prednisolone was used as the first-line immunosuppressive agent in all cases, however steroid monotherapy failed long-term control of autoimmunity/inflammation in the majority of cases and additional immunosuppression was required. Patients with multisystem autoimmunity/inflammation should be investigated for an underlying PID, and in those with PID early assessment of Tregs may help to assess the risk of autoimmunity/inflammation.
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Affiliation(s)
- William Rae
- Department of Immunology, University Hospital Southampton NHS Foundation Trust, Southampton, UK.,Southampton NIHR Wellcome Trust Clinical Research Facility, University of Southampton, University Hospital Southampton, Southampton, UK
| | - Daniel Ward
- Wessex Regional Genetics Laboratory, Salisbury District Hospital, Salisbury, UK.,Wessex Investigational Sciences Hub Laboratory, University of Southampton, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Christopher J Mattocks
- Wessex Regional Genetics Laboratory, Salisbury District Hospital, Salisbury, UK.,Wessex Investigational Sciences Hub Laboratory, University of Southampton, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Yifang Gao
- Wessex Investigational Sciences Hub Laboratory, University of Southampton, University Hospital Southampton NHS Foundation Trust, Southampton, UK.,NIHR Cancer Research UK Experimental Cancer Medicine Centre, Southampton, UK
| | - Reuben J Pengelly
- Human Genetics and Genomic Medicine, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Sanjay V Patel
- Department of Paediatric Immunology and Infectious Diseases, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Sarah Ennis
- Human Genetics and Genomic Medicine, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Saul N Faust
- Southampton NIHR Wellcome Trust Clinical Research Facility, University of Southampton, University Hospital Southampton, Southampton, UK.,Department of Paediatric Immunology and Infectious Diseases, University Hospital Southampton NHS Foundation Trust, Southampton, UK.,Faculty of Medicine, University of Southampton, Southampton, UK.,Institute for Life Sciences, University of Southampton, Southampton, UK
| | - Anthony P Williams
- Department of Immunology, University Hospital Southampton NHS Foundation Trust, Southampton, UK.,Wessex Investigational Sciences Hub Laboratory, University of Southampton, University Hospital Southampton NHS Foundation Trust, Southampton, UK.,NIHR Cancer Research UK Experimental Cancer Medicine Centre, Southampton, UK
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41
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SIC-reg.org: Managementleitfaden und Registerstudie für schwere Immunzytopenien. Monatsschr Kinderheilkd 2017. [DOI: 10.1007/s00112-017-0325-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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42
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Sirolimus as an Effective Agent in the Treatment of Immune Thrombocytopenia (ITP) and Evans Syndrome (ES): A Single Institution's Experience. J Pediatr Hematol Oncol 2017; 39:420-424. [PMID: 28267088 DOI: 10.1097/mph.0000000000000818] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
BACKGROUND Autoimmune cytopenias are characterized by immune-mediated destruction of hematopoietic cell lines with immune thrombocytopenia (ITP) affecting platelets and Evans syndrome (ES) affecting platelets and red blood cells. For patients with persistent disease, limited options for effective and well-tolerated therapies exist. OBJECTIVES Our aim is to describe our institution's experience with sirolimus as therapy for pediatric patients with persistent ITP and ES. DESIGN/METHOD A retrospective analysis was performed in patients with persistent ITP and ES treated with sirolimus. Responses were categorized as complete response (CR), partial response, modest response, or no response. RESULTS Of the 17 patients treated, 12 had ITP and 5 had ES. Seventy-three percent of ITP patients achieved a CR, 78% of them by 3 months. Only 2 patients did not achieve a durable response. Eighty percent of ES patients had a response, with 50% of them achieving CR and the other 50% an asymptomatic partial response. One patient with ES achieved modest response, but discontinued therapy due to an adverse effect. Of the patients that achieved CR, 90% remain off all therapy for a median of 2 years. CONCLUSIONS Our data suggest that sirolimus is a safe and effective steroid-sparing agent in the treatment of persistent ITP and ES.
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43
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Abstract
Primary Evans syndrome (ES) is defined by the concurrent or sequential occurrence of immune thrombocytopenia and autoimmune hemolytic anemia in the absence of an underlying etiology. The syndrome is characterized by a chronic, relapsing, and potentially fatal course requiring long-term immunosuppressive therapy. Treatment of ES is hardly evidence-based. Corticosteroids are the mainstay of therapy. Rituximab has emerged as the most widely used second-line treatment, as it can safely achieve high response rates and postpone splenectomy. An increasing number of new genetic defects involving critical pathways of immune regulation identify specific disorders, which explain cases of ES previously reported as "idiopathic".
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44
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Panigrahi A, Clark A, Myers J, Raj A. A novel immunomodulatory treatment involving mycophenolate mofetil and corticosteroids for pediatric autoimmune cytopenias. Pediatr Blood Cancer 2017; 64:287-293. [PMID: 27615037 DOI: 10.1002/pbc.26210] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 07/11/2016] [Accepted: 07/22/2016] [Indexed: 01/19/2023]
Abstract
BACKGROUND Successful treatment of both pediatric autoimmune hemolytic anemia (AIHA) and immune thrombocytopenic purpura (ITP), specifically those that are refractory to first-line therapies, remains unsatisfactory in terms of long-term remission and medication side effects. Here, we propose a novel combination therapy of mycophenolate mofetil (MMF), an adjunct immunosuppressive, and short-term corticosteroids for the treatment of persistent or chronic autoimmune cytopenias in children. This combination may allow for rapid decrease of steroid usage as well as prolonged count stabilization with minimal toxicity to the patient. PROCEDURE Prospective case series of nine patients, six with persistent or chronic ITP and three with persistent or chronic AIHA, between the ages of 5 and 19 years who are being treated with combination therapy consisting of corticosteroids and MMF. RESULTS All patients with ITP (Patients 4-9) and AIHA (Patients 1-3) met complete response (CR) criteria, as they all initially achieved platelet counts 100 × 109 l-1 or more or hemoglobin level greater than or equal to 10 g/dl, respectively, while on combination therapy and then maintained this level or higher while on MMF alone after steroids were discontinued. CONCLUSIONS Our results are very promising, as MMF appears to be an effective and well-tolerated adjunct immunosuppressant that allows for rapid weaning of steroid usage, minimal adverse side effects to the patients, and long-term stabilization of counts, a goal that has not been achieved successfully with other secondary treatment modalities. Therefore, this novel combination therapy may be an excellent alternative for the treatment of persistent or chronic autoimmune cytopenias in the pediatric population.
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Affiliation(s)
- Arun Panigrahi
- Division of Pediatric Hematology-Oncology, University of Louisville, Louisville, Kentucky
| | - Amy Clark
- University of Louisville School of Medicine, Louisville, Kentucky
| | - John Myers
- University of Louisville School of Medicine, Louisville, Kentucky.,Department of Pediatrics, University of Louisville, Louisville, Kentucky
| | - Ashok Raj
- Division of Pediatric Hematology-Oncology, University of Louisville, Louisville, Kentucky
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45
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Hill QA, Stamps R, Massey E, Grainger JD, Provan D, Hill A. The diagnosis and management of primary autoimmune haemolytic anaemia. Br J Haematol 2016; 176:395-411. [PMID: 28005293 DOI: 10.1111/bjh.14478] [Citation(s) in RCA: 131] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Quentin A Hill
- Department of Haematology, Leeds Teaching Hospitals, Leeds, UK
| | | | | | - John D Grainger
- Royal Manchester Children's Hospital, University of Manchester, Manchester, UK
| | - Drew Provan
- Barts and The London School of Medicine and Dentistry, London, UK
| | - Anita Hill
- Department of Haematology, Leeds Teaching Hospitals, Leeds, UK
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46
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Abstract
Autoimmune lymphoproliferative syndrome (ALPS) is a disorder of abnormal lymphocyte homeostasis, resulting from mutations in the Fas apoptotic pathway. Clinical manifestations include noninfectious and nonmalignant lymphadenopathy, splenomegaly, and autoimmune pathology-most commonly, autoimmune cytopenias. Rarely, and in association with specific genetic mutations, patients with ALPS may go on to develop secondary lymphoid malignancies. Though ALPS is a rare disorder, it should be suspected and ruled out in children presenting with chronic and refractory multilineage cytopenias associated with nonmalignant lymphoproliferation. Revised diagnostic criteria and insights into disease biology have improved both diagnosis and treatment. Sirolimus and mycophenolate mofetil are the best-studied and most effective corticosteroid-sparing therapies for ALPS, and they should be considered first-line therapy for patients who need chronic treatment. This review highlights practical clinical considerations for diagnosis and management of ALPS.
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47
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Miano M, Ramenghi U, Russo G, Rubert L, Barone A, Tucci F, Farruggia P, Petrone A, Mondino A, Lo Valvo L, Crescenzio N, Bellia F, Olivieri I, Palmisani E, Caviglia I, Dufour C, Fioredda F. Mycophenolate mofetil for the treatment of children with immune thrombocytopenia and Evans syndrome. A retrospective data review from the Italian association of paediatric haematology/oncology. Br J Haematol 2016; 175:490-495. [PMID: 27447678 DOI: 10.1111/bjh.14261] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Accepted: 06/07/2016] [Indexed: 12/15/2022]
Abstract
Mycophenolate mofetil (MMF) has been shown to be effective in children with immune thrombocytopenia (ITP) and Evans syndrome (ES), but data from larger series and details on the timing of the response are lacking. We evaluated 56 children treated with MMF for ITP (n = 40) or ES (n = 16), which was primary or secondary to autoimmune lymphoproliferative syndrome -related syndrome (ARS). Thirty-five of the 54 evaluable patients (65%) achieved a partial (18%) or complete (46%) response after a median (range) of 20 (7-137) and 37 (7-192) d, respectively. ITP and ES patients responded in 58% and 81% of cases (P = not significant, ns), with complete response in 32% and 81% (P = 0·01), respectively. 60% and 73% of children with primary disease and ARS responded (P = ns) with complete response in 34% and 68% of cases (P = 0·01), respectively. Six of 35 (17%) children relapsed after a median of 283 d (range 189-1036). Limited toxicity was observed in four patients. The median durations of treatment and follow-up were seven and 12·7 months, respectively. This is the largest reported cohort of patients treated with MMF for ITP/ES. The results show that MMF is effective and safe and provides a relatively quick response, suggesting that it has a potential role as an alternative to more aggressive and expensive second/further-line treatments.
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Affiliation(s)
- Maurizio Miano
- Haematology Unit, I.R.C.C.S. Istituto Giannina Gaslini, Genoa, Italy.
| | - Ugo Ramenghi
- Haematology Unit, Paediatric Department, University of Turin, Turin, Italy
| | - Giovanna Russo
- Department of Paediatrics, Unit of Paediatric Haematology and Oncology, University of Catania, Catania, Italy
| | - Laura Rubert
- Haematology-Oncology Unit, I.R.C.C.S. Policlinico Fondazione San Matteo Pavia, Pavia, Italy
| | - Angelica Barone
- Paediatric and Onco-Haematology Unit, University Hospital of Parma, Parma, Italy
| | - Fabio Tucci
- Paediatric Haematology-Oncology Unit, Ospedale Pediatrico Meyer, Florence, Italy
| | - Piero Farruggia
- Paediatric Haematology and Oncology Unit, "G. Di Cristina" Children's Hospital, Palermo, Italy
| | | | - Anna Mondino
- Haematology Unit, Paediatric Department, University of Turin, Turin, Italy
| | - Laura Lo Valvo
- Department of Paediatrics, Unit of Paediatric Haematology and Oncology, University of Catania, Catania, Italy
| | | | - Francesco Bellia
- Department of Paediatrics, Unit of Paediatric Haematology and Oncology, University of Catania, Catania, Italy
| | - Irene Olivieri
- Haematology Unit, I.R.C.C.S. Istituto Giannina Gaslini, Genoa, Italy
| | - Elena Palmisani
- Haematology Unit, I.R.C.C.S. Istituto Giannina Gaslini, Genoa, Italy
| | - Ilaria Caviglia
- Infectious Diseases Unit, I.R.C.C.S. Istituto Giannina Gaslini, Genoa, Italy
| | - Carlo Dufour
- Haematology Unit, I.R.C.C.S. Istituto Giannina Gaslini, Genoa, Italy
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48
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Palmblad J, Nilsson CC, Höglund P, Papadaki HA. How we diagnose and treat neutropenia in adults. Expert Rev Hematol 2016; 9:479-87. [PMID: 26778239 DOI: 10.1586/17474086.2016.1142867] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Neutropenias (NPs), being acute and often transient, or chronic, range from life-threatening conditions with very low absolute neutrophil blood counts (ANC) to disorders characterized by only mild NP and of no obvious significance for health. Many are caused by genetic variations/mutations, e.g. the benign familial NP and the chronic severe NPs (e.g. Kostmann disease). Some of the latter are associated with various bodily malformations. Many of the mild-to-moderate NPs are signs of underlying disorders that need specialized treatments (e.g. HIV, hepatitis, autoimmune disorders, the large granular lymphocyte syndrome). We provide here means for the evaluation of a previously unknown NP, suggest a triage and treatments.
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Affiliation(s)
- Jan Palmblad
- a Departments of Medicine and Hematology , The Karolinska Institutet, Karolinska University Hospital Huddinge , Stockholm , Sweden
| | - Christer C Nilsson
- a Departments of Medicine and Hematology , The Karolinska Institutet, Karolinska University Hospital Huddinge , Stockholm , Sweden
| | - Petter Höglund
- b Center for Hematology and Regenerative Medicine (HERM), Departments of Hematology and Clinical Immunology and Transfusion Medicine , Karolinska University Hospital Huddinge , Stockholm , Sweden
| | - Helen A Papadaki
- c Department of Hematology , University of Crete Medical School , Heraklion , Greece
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49
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Bride KL, Vincent T, Smith-Whitley K, Lambert MP, Bleesing JJ, Seif AE, Manno CS, Casper J, Grupp SA, Teachey DT. Sirolimus is effective in relapsed/refractory autoimmune cytopenias: results of a prospective multi-institutional trial. Blood 2016; 127:17-28. [PMID: 26504182 PMCID: PMC4705607 DOI: 10.1182/blood-2015-07-657981] [Citation(s) in RCA: 143] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 09/22/2015] [Indexed: 12/30/2022] Open
Abstract
Patients with autoimmune multilineage cytopenias are often refractory to standard therapies requiring chronic immunosuppression with medications with limited efficacy and high toxicity. We present data on 30 patients treated on a multicenter prospective clinical trial using sirolimus as monotherapy. All children (N = 12) with autoimmune lymphoproliferative syndrome (ALPS) achieved a durable complete response (CR), including rapid improvement in autoimmune disease, lymphadenopathy, and splenomegaly within 1 to 3 months of starting sirolimus. Double-negative T cells were no longer detectable in most, yet other lymphocyte populations were spared, suggesting a targeted effect of sirolimus. We also treated 12 patients with multilineage cytopenias secondary to common variable immunodeficiency (CVID), Evans syndrome (ES), or systemic lupus erythematosus (SLE), and most achieved a CR (N = 8), although the time to CR was often slower than was seen in ALPS. Six children with single-lineage autoimmune cytopenias were treated and only 2 responded. Sirolimus was well tolerated with very few side effects. All of the responding patients have remained on therapy for over 1 year (median, 2 years; range, 1 to 4.5 years). In summary, sirolimus led to CR and durable responses in a majority of children with refractory multilineage autoimmune cytopenias. The responses seen in ALPS patients were profound, suggesting that sirolimus should be considered as a first-line, steroid-sparing treatment of patients needing chronic therapy. The results in other multilineage autoimmune cytopenia cohorts were encouraging, and sirolimus should be considered in children with SLE, ES, and CVID. This trial was registered at www.clinicaltrials.gov as #NCT00392951.
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Affiliation(s)
- Karen L Bride
- Division of Oncology, The Children's Hospital of Philadelphia, Philadelphia, PA; Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Tiffaney Vincent
- Division of Oncology, The Children's Hospital of Philadelphia, Philadelphia, PA; Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Kim Smith-Whitley
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA; Division of Hematology, The Children's Hospital of Philadelphia, Philadelphia, PA
| | - Michele P Lambert
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA; Division of Hematology, The Children's Hospital of Philadelphia, Philadelphia, PA
| | - Jack J Bleesing
- Division of Bone Marrow Transplantation and Immune Deficiency, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH
| | - Alix E Seif
- Division of Oncology, The Children's Hospital of Philadelphia, Philadelphia, PA; Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - Catherine S Manno
- Department of Pediatrics, New York University Langone Medical Center, New York, NY; and
| | - James Casper
- Division of Pediatric Hematology, Oncology and Bone Marrow Transplant, Medical College of Wisconsin, Children's Hospital of Wisconsin, Milwaukee, WI
| | - Stephan A Grupp
- Division of Oncology, The Children's Hospital of Philadelphia, Philadelphia, PA; Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
| | - David T Teachey
- Division of Oncology, The Children's Hospital of Philadelphia, Philadelphia, PA; Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
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Affiliation(s)
- Maurizio Miano
- Clinical and Experimental Haematology Unit; Department of Haematology/Oncology; IRCCS Istituto Giannina Gaslini; Genoa Italy
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