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Ponda P, Cerise JE, Navetta-Modrov B, Kiehm J, Covelli GM, Weiss J, Lee AT. The age-specific microbiome of children with milk, egg, and peanut allergy. Ann Allergy Asthma Immunol 2024:S1081-1206(24)00276-X. [PMID: 38697287 DOI: 10.1016/j.anai.2024.04.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/10/2024] [Accepted: 04/22/2024] [Indexed: 05/04/2024]
Abstract
BACKGROUND Immune regulation by gut microbiota is affected by dysbiosis and may precede food allergy onset. Prior studies lacked comparisons stratified by age and clinical phenotype. OBJECTIVE To assess the microbiome of children with food allergy (<3 years, 3-18 years) compared with similar aged children without food allergy. METHODS A real-world prospective cross-sectional study performed from 2014 to 2019 recruited children highly likely to have milk, egg, or peanut allergy defined by history and serum IgE or confirmed by food challenge. 16S ribosomal RNA sequencing identified stool microbial DNA. Alpha and beta diversity was compared between groups with food allergy and healthy controls stratified by age. Differential abundance for non a priori taxa was accepted at absolute fold-change greater than 2 and q value less than 0.05. RESULTS A total of 70 patients were included (56 with food allergy and 14 healthy controls). Groups were not significantly different in age, gender at birth, race, mode of delivery, breastfeeding duration, or antibiotic exposure. Younger children with food allergy had similar alpha diversity compared with controls. Beta diversity was significantly different by age (P = .001). There was differential abundance of several a priori (P < .05) taxa (including Clostridia) only in younger children. Both a priori (including Coprococcus and Clostridia) and non a priori (q < 0.05) Acidobacteria_Gp15, Aestuariispira, Tindallia, and Desulfitispora were significant in older children with food allergy, especially with peanut allergy. CONCLUSION Dysbiosis associates with food allergy, most prominent in older children with peanut allergy. Younger children with and without food allergy have fewer differences in gut microbiota. This correlates with clinical observations of persistence of peanut allergy and improved efficacy and safety of oral immunotherapy in younger children. Age younger than 3 years should be considered when initiating therapeutic interventions.
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Affiliation(s)
- Punita Ponda
- Northwell, New Hyde Park, New York; Division of Allergy and Immunology, Cohen Children's Medical Center, New Hyde Park, New York.
| | - Jane E Cerise
- Biostatistics Unit, Office of Academic Affairs, Northwell Health, New Hyde Park, New York
| | - Brianne Navetta-Modrov
- Department of Medicine, Stony Brook University School of Medicine, Stony Brook, New York
| | - Jamie Kiehm
- Los Angeles County Department of Health Services, Los Angeles, California
| | - Grace M Covelli
- Walter Reed National Military Medical Center, Bethesda, Maryland
| | - Jared Weiss
- Department of Psychiatry, New York University School of Medicine, New York, New York
| | - Annette T Lee
- Northwell, New Hyde Park, New York; Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Northwell Health, Manhasset, New York
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2
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Burns J, Ganigara M, Cerise JE, Hayes DA. Fetal echocardiographic features associated with bicuspid aortic valve. Cardiol Young 2024; 34:50-55. [PMID: 37171064 DOI: 10.1017/s1047951123000744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
BACKGROUND Prenatal diagnosis of bicuspid aortic valve is challenging. Bicuspid aortic valve is often associated with aortic dilation. METHODS Fetuses with postnatally confirmed bicuspid aortic valve were gestational age-matched with normal controls. Complex lesions were excluded. Aortic valve and arch measurements by two blinded investigators were compared. RESULTS We identified 27 cases and 27 controls. Estimated fetal weight percentile was lower in cases than controls. Seven cases had one or more significant lesions including perimembranous ventricular septal defects (n = 2), isolated annular hypoplasia (n = 2), and/or arch hypoplasia/coarctation (n = 4). Fetuses with bicuspid aortic valves had significantly smaller median z-scores of the aortic annulus (-1.60 versus -0.53, p < 0.001) and root (-1.10 versus -0.53, p = 0.040), and larger ratios of root to annulus (1.32 versus 1.21, p < 0.001), sinotubular junction to annulus (1.07 versus 0.99, p < 0.001), ascending aorta to annulus (1.29 versus 1.18, p < 0.001), and transverse aorta to annulus (1.04 versus 0.96, p = 0.023). Leaflets were "doming" in 11 cases (41%) and 0 controls (p = 0.010), "thickened" in 10 cases (37%) and 0 controls (p = 0.002). We noted similar findings in the subgroup without significant additional cardiac defects. CONCLUSIONS The appearance of doming or thickened aortic valve leaflets on fetal echocardiogram is associated with bicuspid aortic valve. Compared to controls, fetuses with bicuspid aortic valve had smaller aortic annulus sizes (possibly related to smaller fetal size) without proportionally smaller aortic measurements, resulting in larger aortic dimension to annulus ratios. Despite inherent challenges of diagnosing bicuspid aortic valve prenatally, these findings may increase suspicion and prompt appropriate postnatal follow-up.
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Affiliation(s)
- Joseph Burns
- Division of Pediatric Cardiology, Texas Children's Hospital/Baylor College of Medicine, Houston, TX, USA
| | | | - Jane E Cerise
- Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY, USA
| | - Denise A Hayes
- Division of Pediatric Cardiology, Cohen Children's Medical Center Northwell Health, New Hyde Park, NY, USA
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3
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Bossert S, Borenzweig W, Benedict C, Cerise JE, Siembida EJ, Fish JD. Barriers to Receiving Follow-up Care Among Childhood Cancer Survivors. J Pediatr Hematol Oncol 2023; 45:e827-e832. [PMID: 37526350 DOI: 10.1097/mph.0000000000002714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 06/06/2023] [Indexed: 08/02/2023]
Abstract
Little is known on why adherence to follow-up care in childhood cancer survivors (CCS) is lacking. This study characterized barriers to adherence to follow-up care among CCS, identified sociodemographic correlates of barriers, and examined whether barriers to follow-up care relate to health-related quality of life. Adult CCS (N=84) were anonymously surveyed via REDCap using the Barriers to Care Questionnaire (BCQ) and the Quality of Life Scale-Cancer Survivor (QOL-CS). Both descriptive and correlation analyses were conducted. The median BCQ total score was 88.5 (interquartile ranges:78.4 to 95.7), with the greatest barriers reported in the Skills (eg, ease of navigating the healthcare system) and Pragmatism subscales (eg, cost). There was a statistically significant correlation between the BCQ total score and the QOL-CS total score (rs=0.47, P <0.0001) and the physical, psychological, and social QOL-CS subscales (all P 's<0.05). The results found that barriers to follow-up care for CCS are mostly related to cost and appointment logistics, and that more barriers to care is associated with lower health-related quality of life among CCS. Identifying barriers to follow-up care is the first step in improving adherence, which would allow for earlier detection of late effects of cancer therapy and thereby result in reductions in morbidity and mortality.
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Affiliation(s)
- Sharon Bossert
- Zucker School of Medicine at Hofstra/Northwell, Hempstead
| | | | | | | | - Elizabeth J Siembida
- Feinstein Institute for Medical Research
- Institute of Health System Science, Northwell Health, Manhasset, NY
| | - Jonathan D Fish
- Zucker School of Medicine at Hofstra/Northwell, Hempstead
- Cohen Children's Medical Center, New Hyde Park
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4
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Sadeghi JK, Hollis RJ, Cerise JE, Li LT, Cal M, Patel VM, Coppa GF, Barrera R. Pre-hospital caloric deficits in surgical patients. Nutr Health 2022:2601060221113409. [PMID: 35818767 DOI: 10.1177/02601060221113409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND The timing, route, and amount of nutrition for surgical patients with substantial caloric deficits remain active areas of study. Current guidelines are based on in-hospital days NPO after admission to the hospital. This historic process neglects the multiple days of caloric deficit patients experience prior to hospital admission. AIM To determine the impact of pre-hospital caloric deficit (PHCD) for surgical patients on their outcomes. METHODS 313 patients admitted with a diagnosis of small bowel obstruction, pancreatitis, or diverticulitis were analyzed for their PHCD's. PHCD's were estimated using patient-reported days with significant emesis, and absent oral intake. Patients with PHCD's were compared to patients with no PHCD for length of stay, status on discharge, disposition, and 30-day readmission rate. RESULTS There were 313 patients and 42% of the patients were male. The median age was 65 years. Median number of days sick prior to hospital admission was 1 (IQR: 1 to 2). Median PHCD was 1882 kcal (IQR: 1355 to 3650). Median number of days NPO while in-hospital was 3 (IQR: 2 to 5). Median in-hospital caloric deficit was 4268 kcal (IQR: 2825 to 6610). No significant association was observed between discharge disposition, complication rate, ambulatory status, 30-day readmission rate and PHCD. In-hospital caloric deficit was associated with complications after surgery (p < 0.0001). CONCLUSION Small PHCD's in patients with SBO's, pancreatitis, or diverticulitis do not negatively affect their outcomes. Further research of patients with large PHCD's is needed to best treat surgical patients at risk for malnutrition.
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Affiliation(s)
- John K Sadeghi
- 5799Northwell Health North Shore/Long Island Jewish General Surgery, Manhasset, NY, USA
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
| | - Rusell J Hollis
- 5799Northwell Health North Shore/Long Island Jewish General Surgery, Manhasset, NY, USA
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
| | - Jane E Cerise
- 5799Northwell Health North Shore/Long Island Jewish General Surgery, Manhasset, NY, USA
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
| | - Leo T Li
- 5799Northwell Health North Shore/Long Island Jewish General Surgery, Manhasset, NY, USA
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
| | - Matthew Cal
- 5799Northwell Health North Shore/Long Island Jewish General Surgery, Manhasset, NY, USA
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
| | - Vihas M Patel
- 5799Northwell Health North Shore/Long Island Jewish General Surgery, Manhasset, NY, USA
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
| | - Gene F Coppa
- 5799Northwell Health North Shore/Long Island Jewish General Surgery, Manhasset, NY, USA
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
| | - Rafael Barrera
- 5799Northwell Health North Shore/Long Island Jewish General Surgery, Manhasset, NY, USA
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
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Enner S, Shah YD, Ali A, Cerise JE, Esposito J, Rubin L, Subramony A, Kothare S. Patients Diagnosed with Multisystem Inflammatory Syndrome in Children Have Persistent Neurologic, Sleep, and Psychiatric Symptoms After Hospitalization. J Child Neurol 2022; 37:426-433. [PMID: 35072534 DOI: 10.1177/08830738221075924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background: Acute neurological complications from COVID-19 have been reported in both pediatric and adult populations. Chronic symptoms after recovery have been reported in adults and can include neuropsychiatric and sleep symptoms. Persistent symptoms in children with the multisystem inflammatory syndrome in children (MIS-C) have not been studied. Methods: We conducted a single-center retrospective chart review and cross-sectional survey of patients diagnosed with MIS-C. Patients and parents were surveyed on symptoms before the COVID-19 pandemic, upon admission, and 23 weeks (interquartile range 20-26 weeks) after discharge. Age and gender-matched patients requiring intensive care unit (ICU) care for status asthmaticus were surveyed as a control group. Results: In this cohort of 47 patients, 77% reported neurological, 60% psychiatric, and 77% sleep symptoms during hospitalization. Prior to hospitalization, 15% reported neurological, 0% psychiatric, and 7% sleep symptoms. Eighteen (50%) of the 36 patients who had neurological symptoms during hospitalization continued to have symptoms on follow-up (odds ratio [OR] = ∞, p = .003]). Similarly, 16 (57%) of 28 patients with psychiatric symptoms reported persistence at follow-up (OR = 5.00; p = .02). Fifteen (42%) of the 18 patients reporting sleep disturbance during hospitalization had persistence on follow-up (OR = 1.9; p = .49). The aggregate of neurological, psychiatric, and sleep symptoms during admission and at follow-up was significantly higher for MIS-C patients requiring ICU care when compared to the control group (p = .01). Conclusions: In this cohort of patients with MIS-C, a majority of patients reported new-onset neuropsychiatric and sleep symptoms. Almost half of these patients had persistent symptoms on a follow-up survey.
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Affiliation(s)
- Stephanie Enner
- Division of Pediatric Neurology, Department of Pediatrics, Cohen Children's Medical Center, NY, USA
| | - Yash D Shah
- Division of Pediatric Neurology, Department of Pediatrics, Cohen Children's Medical Center, NY, USA
| | - Aaqil Ali
- Division of Pediatric Neurology, Department of Pediatrics, Cohen Children's Medical Center, NY, USA
| | - Jane E Cerise
- Biostatistics Unit, Feinstein Institute for Medical Research, Northwell Health Manhasset, NY, USA
| | - Justin Esposito
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, NY, USA
| | - Lorry Rubin
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, NY, USA
- Division of Pediatric Infectious Disease, Department of Pediatrics, Cohen Children's Medical Center, NY, USA
| | - Anupama Subramony
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, NY, USA
- Department of Pediatrics, Cohen Children's Medical Center, Northwell Health, NY, USA
| | - Sanjeev Kothare
- Division of Pediatric Neurology, Department of Pediatrics, Cohen Children's Medical Center, NY, USA
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, NY, USA
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Ezhuthachan ID, Banks TA, Cerise JE, Wong SC, Ponda P. Allergen Immunotherapy Extract Shortages and Their Effects on Clinical Care: A Work Group Report of the AAAAI Immunotherapy, Allergen Standardization, and Allergy Diagnostics Committee. J Allergy Clin Immunol Pract 2022; 10:444-452. [PMID: 34840110 DOI: 10.1016/j.jaip.2021.10.057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 10/10/2021] [Accepted: 10/13/2021] [Indexed: 06/13/2023]
Abstract
Allergen immunotherapy (AIT) is the only disease-modifying therapy indicated for treatment of allergic asthma, rhinitis, conjunctivitis, and Hymenoptera hypersensitivity. Manufacturing of the extracts used in AIT involve multistep complex processes as well as regulatory oversight. Furthermore, some source materials are vulnerable to unexpected events of nature. Given these circumstances, allergen extract supply can be disrupted with a potential to adversely impact patient care. A group of members from the American Academy of Allergy, Asthma, and Immunology (AAAAI) Immunotherapy, Allergy Standardization and Allergy Diagnostic Committee formed a workgroup to assess the frequency and effects of allergen extract shortages and associated factors. This workgroup developed a survey that was distributed to a random 20% of the AAAAI membership. In addition, the group also performed a review of the scientific literature on allergen extract supply and shortage. Based on the findings of the survey study and literature review, the workgroup reports frequency and extent of shortages, potential ways to improve communication with suppliers, and need for further guidance in patient care during times of shortage.
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Affiliation(s)
- Idil Daloglu Ezhuthachan
- Division of Allergy and Immunology, Department of Pediatrics, Steven and Alexandra Cohen Children's Medical Center, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Great Neck, NY.
| | - Taylor A Banks
- Allergy/Immunology Division, Naval Medical Center Portsmouth, Portsmouth, Va
| | - Jane E Cerise
- Biostatistics Unit, Feinstein Institute for Medical Research, Manhasset, NY
| | - Stephen C Wong
- Allergy/Immunology Division, Carl R. Darnall Army Medical Center, Fort Hood, Tex
| | - Punita Ponda
- Division of Allergy and Immunology, Department of Pediatrics, Steven and Alexandra Cohen Children's Medical Center, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Great Neck, NY
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7
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Sharma C, Burns J, Kulkarni A, Cerise JE, Molina Berganza F, Hayes DA. Continuous and intermittent administration of intravenous sildenafil in critically ill infants with pulmonary hypertension. Pediatr Pulmonol 2021; 56:2973-2978. [PMID: 34143564 DOI: 10.1002/ppul.25539] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 05/22/2021] [Accepted: 05/24/2021] [Indexed: 11/11/2022]
Abstract
UNLABELLED Intravenous (IV) sildenafil may be administered as a continuous infusion or intermittent bolus dosing in infants with pulmonary hypertension (PH). We aimed to compare these delivery methods. METHODS We retrospectively evaluated subjects less than 12 months old treated with IV sildenafil for PH. Vital signs, oxygen requirement, vasoactive-inotropic score (VIS), and echocardiogram results before and after sildenafil initiation, and the need for discontinuation due to side effects, were noted. RESULTS Forty-three subjects were identified (23 continuous, 20 intermittent). There were clinically significant differences in PH classifications between groups. The continuous group was significantly younger (p = 0.010) with higher baseline severity of illness suggested by higher inspired oxygen (FiO2 ) and VIS (p = 0.012). After sildenafil initiation, there were no significant differences in changes in blood pressure, oxygen saturation, FiO2 , or VIS between groups, and no difference in the number of subjects requiring discontinuation due to side effects (4 continuous, 1 intermittent, p = 0.351). Eight continuous group subjects (34.8%) and 3 intermittent group subjects (15.0%) died (p = 0.024), but echocardiographic improvement in PH degree was more common in the continuous group (77.8% vs. 33.3%, p = 0.007). CONCLUSION In this small cohort of infants treated with continuous or intermittent IV sildenafil, in the setting of different baseline characteristics between groups, there were no significant differences in changes in vital signs, VIS, FiO2 , or need for discontinuation of therapy due to side effects. Higher continuous group mortality may be explained by greater baseline illness severity, but larger prospective, randomized studies are required to investigate these different delivery methods.
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Affiliation(s)
- Chetan Sharma
- Division of Pediatric Cardiology, Cohen Children's Medical Center, Northwell Health, New Hyde Park, New York, USA
| | - Joseph Burns
- Division of Pediatrics, Cohen Children's Medical Center, New Hyde Park, New York, USA
| | - Aparna Kulkarni
- Division of Pediatric Cardiology, Cohen Children's Medical Center, Northwell Health, New Hyde Park, New York, USA
| | - Jane E Cerise
- Division of Biostatistics, Feinstein Institute for Medical Research, Manhasset, New York, USA
| | - Fernando Molina Berganza
- Division of Pediatric Cardiology, Cohen Children's Medical Center, Northwell Health, New Hyde Park, New York, USA
| | - Denise A Hayes
- Division of Pediatric Cardiology, Cohen Children's Medical Center, Northwell Health, New Hyde Park, New York, USA
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8
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Ma M, Hui-Yuen JS, Cerise JE, Iqbal S, Eberhard BA. Validation of the 2019 European League Against Rheumatism/American College of Rheumatology Criteria Compared to the 1997 American College of Rheumatology Criteria and the 2012 Systemic Lupus International Collaborating Clinics Criteria in Pediatric Systemic Lupus Erythematosus. Arthritis Care Res (Hoboken) 2020; 72:1597-1601. [PMID: 31478595 DOI: 10.1002/acr.24057] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 08/27/2019] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Different classification criteria for systemic lupus erythematosus (SLE) have been proposed for many years. The most widely used and accepted criteria has been the 1997 American College of Rheumatology (ACR) criteria. In 2012, the Systemic Lupus International Collaborating Clinics (SLICC) criteria were published in an attempt to improve the clinical relevance of SLE criteria. In 2017, weighted criteria were proposed that included entry criteria, something the 1997 ACR and the 2012 SLICC criteria did not identify. The aim of the present study was to validate the 2017 weighted criteria, the 1997 ACR criteria, and the 2012 SLICC criteria and compare the sensitivities and specificities in pediatric SLE. METHODS For the past 15 years, retrospective chart review of patients diagnosed with SLE before age 19 years was conducted. The controls were patients referred for serologies positive for antinuclear antibodies but did not fulfill criteria for diagnosis of SLE at the initial visit or were diagnosed with another autoimmune disease. The 3 classification criteria sets were applied to these patients and compared against a gold standard of physician diagnosis. RESULTS A total of 156 patients were diagnosed with SLE. The sensitivity for the 2017 weighted criteria was 0.974 (95% confidence interval [95% CI] 0.936-0.993) and the specificity was 0.984 (95% CI 0.966-0.994). The sensitivity for the 1997 ACR criteria was 0.872 (95% CI 0.809-0.920) and the specificity was 1.00 (95% CI 0.990-1.000). The sensitivity for the 2012 SLICC criteria was 0.974 (95% CI 0.936-0.993) and the specificity was 0.997 (95% CI 0.985-1.000). CONCLUSION The 2017 weighted criteria and the 2012 SLICC criteria were more sensitive than the 1997 ACR criteria. There were no significant differences in sensitivity and specificity between the 2012 SLICC and the 2017 weighted criteria.
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Affiliation(s)
- Meiqian Ma
- Steven and Alexandra Cohen Children's Medical Center of New York, Lake Success, New York, United States
| | - Joyce S Hui-Yuen
- Steven and Alexandra Cohen Children's Medical Center of New York, Lake Success, New York, and Hofstra Northwell School of Medicine, Hempstead, New York, United States
| | - Jane E Cerise
- Feinstein Institute for Medical Research, Manhasset, New York, United States
| | - Sabah Iqbal
- Steven and Alexandra Cohen Children's Medical Center of New York, Lake Success, New York, United States
| | - B Anne Eberhard
- Steven and Alexandra Cohen Children's Medical Center of New York, Lake Success, New York, and Hofstra Northwell School of Medicine, Hempstead, New York, United States
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9
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Petukhova L, Patel AV, Rigo RK, Bian L, Verbitsky M, Sanna-Cherchi S, Erjavec SO, Abdelaziz AR, Cerise JE, Jabbari A, Christiano AM. Integrative analysis of rare copy number variants and gene expression data in alopecia areata implicates an aetiological role for autophagy. Exp Dermatol 2019; 29:243-253. [PMID: 31169925 DOI: 10.1111/exd.13986] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 04/23/2019] [Accepted: 05/09/2019] [Indexed: 12/26/2022]
Abstract
Alopecia areata (AA) is a highly prevalent autoimmune disease that attacks the hair follicle and leads to hair loss that can range from small patches to complete loss of scalp and body hair. Our previous linkage and genome-wide association studies (GWAS) generated strong evidence for aetiological contributions from inherited genetic variants at different population frequencies, including both rare mutations and common polymorphisms. Additionally, we conducted gene expression (GE) studies on scalp biopsies of 96 patients and controls to establish signatures of active disease. In this study, we performed an integrative analysis on these two datasets to test the hypothesis that rare CNVs in patients with AA could be leveraged to identify drivers of disease in our AA GE signatures. We analysed copy number variants (CNVs) in a case-control cohort of 673 patients with AA and 16 311 controls independent of the case-control cohort of 96 research participants used in our GE study. Using an integrative computational analysis, we identified 14 genes whose expression levels were altered by CNVs in a consistent direction of effect, corresponding to gene expression changes in lesional skin of patients. Four of these genes were affected by CNVs in three or more unrelated patients with AA, including ATG4B and SMARCA2, which are involved in autophagy and chromatin remodelling, respectively. Our findings identified new classes of genes with potential contributions to AA pathogenesis.
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Affiliation(s)
- Lynn Petukhova
- Department of Dermatology, College of Physicians and Surgeons, Columbia University, New York, New York.,Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York
| | - Aakash V Patel
- Department of Dermatology, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Rachel K Rigo
- Department of Dermatology, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Li Bian
- Department of Dermatology, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Miguel Verbitsky
- Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Simone Sanna-Cherchi
- Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Stephanie O Erjavec
- Department of Dermatology, College of Physicians and Surgeons, Columbia University, New York, New York.,Department of Genetics and Development, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Alexa R Abdelaziz
- Department of Dermatology, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Jane E Cerise
- Department of Dermatology, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Ali Jabbari
- Department of Dermatology, College of Physicians and Surgeons, Columbia University, New York, New York
| | - Angela M Christiano
- Department of Dermatology, College of Physicians and Surgeons, Columbia University, New York, New York.,Department of Genetics and Development, College of Physicians and Surgeons, Columbia University, New York, New York
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10
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Jabbari A, Nguyen N, Cerise JE, Ulerio G, de Jong A, Clynes R, Christiano AM, Mackay-Wiggan J. Treatment of an alopecia areata patient with tofacitinib results in regrowth of hair and changes in serum and skin biomarkers. Exp Dermatol 2018; 25:642-3. [PMID: 27119625 DOI: 10.1111/exd.13060] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/21/2016] [Indexed: 01/11/2023]
Affiliation(s)
- Ali Jabbari
- Department of Dermatology, Columbia University, New York, NY, USA
| | - Nhan Nguyen
- Department of Dermatology, Columbia University, New York, NY, USA
| | - Jane E Cerise
- Department of Dermatology, Columbia University, New York, NY, USA
| | - Grace Ulerio
- Department of Dermatology, Columbia University, New York, NY, USA
| | | | - Raphael Clynes
- Department of Dermatology, Columbia University, New York, NY, USA
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Abstract
The t-distributed stochastic neighbor embedding t-SNE is a new dimension reduction and visualization technique for high-dimensional data. t-SNE is rarely applied to human genetic data, even though it is commonly used in other data-intensive biological fields, such as single-cell genomics. We explore the applicability of t-SNE to human genetic data and make these observations: (i) similar to previously used dimension reduction techniques such as principal component analysis (PCA), t-SNE is able to separate samples from different continents; (ii) unlike PCA, t-SNE is more robust with respect to the presence of outliers; (iii) t-SNE is able to display both continental and sub-continental patterns in a single plot. We conclude that the ability for t-SNE to reveal population stratification at different scales could be useful for human genetic association studies.
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Affiliation(s)
- Wentian Li
- Robert S Boas Center for Genomics and Human Genetics, Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY 11030, USA
| | - Jane E. Cerise
- Robert S Boas Center for Genomics and Human Genetics, Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY 11030, USA
| | - Yaning Yang
- Department of Statistics and Finance, University of Science and Technology of China, Hefei, Anhui, China
| | - Henry Han
- Department of Computer and Information Sciences, Fordham University, Lincoln Center, New York, NY, USA
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12
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Umegaki N, Umegaki N, Pasmooij AM, Itoh M, Cerise JE, Guo Z, Levy B, Gostynski A, Rothman LC, Jonkman MF, Christiano AM. Generation of induced pluripotent stem cells from revertant keratinocytes. J Dermatol Sci 2016. [DOI: 10.1016/j.jdermsci.2016.08.146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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13
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Mackay-Wiggan J, Jabbari A, Nguyen N, Cerise JE, Clark C, Ulerio G, Furniss M, Vaughan R, Christiano AM, Clynes R. Oral ruxolitinib induces hair regrowth in patients with moderate-to-severe alopecia areata. JCI Insight 2016; 1:e89790. [PMID: 27699253 DOI: 10.1172/jci.insight.89790] [Citation(s) in RCA: 168] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND. Alopecia areata (AA) is a common autoimmune disease with a lifetime risk of 1.7%; there are no FDA-approved treatments for AA. We previously identified a dominant IFN-γ transcriptional signature in cytotoxic T lymphocytes (CTLs) in human and mouse AA skin and showed that treatment with JAK inhibitors induced durable hair regrowth in mice by targeting this pathway. Here, we investigated the use of the oral JAK1/2 inhibitor ruxolitinib in the treatment of patients with moderate-to-severe AA. METHODS. We initiated an open-label clinical trial of 12 patients with moderate-to-severe AA, using oral ruxolitinib, 20 mg twice per day, for 3-6 months of treatment followed by 3 months follow-up off drug. The primary endpoint was the proportion of subjects with 50% or greater hair regrowth from baseline to end of treatment. RESULTS. Nine of twelve patients (75%) demonstrated a remarkable response to treatment, with average hair regrowth of 92% at the end of treatment. Safety parameters remained largely within normal limits, and no serious adverse effects were reported. Gene expression profiling revealed treatment-related downregulation of inflammatory markers, including signatures for CTLs and IFN response genes and upregulation of hair-specific markers. CONCLUSION. In this pilot study, 9 of 12 patients (75%) treated with ruxolitinib showed significant scalp hair regrowth and improvement of AA. Larger randomized controlled trials are needed to further assess the safety and efficacy of ruxolitinib in the treatment of AA. TRIAL REGISTRATION. Clinicaltrials.gov NCT01950780. FUNDING. Locks of Love Foundation, the Alopecia Areata Initiative, NIH/National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), and the Irving Institute for Clinical and Translational Research/Columbia University Medical Center Clinical and Translational Science Award (CUMC CTSA).
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Affiliation(s)
| | | | | | | | | | | | | | | | - Angela M Christiano
- Department of Dermatology.,Department of Genetics and Development, Columbia University, New York, New York, USA
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14
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Kennedy Crispin M, Ko JM, Craiglow BG, Li S, Shankar G, Urban JR, Chen JC, Cerise JE, Jabbari A, Winge MC, Marinkovich MP, Christiano AM, Oro AE, King BA. Safety and efficacy of the JAK inhibitor tofacitinib citrate in patients with alopecia areata. JCI Insight 2016; 1:e89776. [PMID: 27699252 DOI: 10.1172/jci.insight.89776] [Citation(s) in RCA: 195] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Alopecia areata (AA) is an autoimmune disease characterized by hair loss mediated by CD8+ T cells. There are no reliably effective therapies for AA. Based on recent developments in the understanding of the pathomechanism of AA, JAK inhibitors appear to be a therapeutic option; however, their efficacy for the treatment of AA has not been systematically examined. METHODS This was a 2-center, open-label, single-arm trial using the pan-JAK inhibitor, tofacitinib citrate, for AA with >50% scalp hair loss, alopecia totalis (AT), and alopecia universalis (AU). Tofacitinib (5 mg) was given twice daily for 3 months. Endpoints included regrowth of scalp hair, as assessed by the severity of alopecia tool (SALT), duration of hair growth after completion of therapy, and disease transcriptome. RESULTS Of 66 subjects treated, 32% experienced 50% or greater improvement in SALT score. AA and ophiasis subtypes were more responsive than AT and AU subtypes. Shorter duration of disease and histological peribulbar inflammation on pretreatment scalp biopsies were associated with improvement in SALT score. Drug cessation resulted in disease relapse in 8.5 weeks. Adverse events were limited to grade I and II infections. An AA responsiveness to JAK/STAT inhibitors score was developed to segregate responders and nonresponders, and the previously developed AA disease activity index score tracked response to treatment. CONCLUSIONS At the dose and duration studied, tofacitinib is a safe and effective treatment for severe AA, though it does not result in a durable response. Transcriptome changes reveal unexpected molecular complexity within the disease. TRIAL REGISTRATION ClinicalTrials.gov NCT02197455 and NCT02312882. FUNDING This work was supported by the US Department of Veterans Affairs Office of Research and Development, National Institute of Arthritis and Musculoskeletal and Skin Diseases National Institutes of Health grant R01 AR47223 and U01 AR67173, the National Psoriasis Foundation, the Swedish Society of Medicine, the Fernström Foundation, the Locks of Love Foundation, the National Alopecia Areata Foundation, and the Ranjini and Ajay Poddar Resource Fund for Dermatologic Diseases Research.
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Affiliation(s)
- Milène Kennedy Crispin
- Program in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, California, USA
| | - Justin M Ko
- Program in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, California, USA
| | | | - Shufeng Li
- Program in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, California, USA
| | - Gautam Shankar
- Program in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, California, USA
| | - Jennifer R Urban
- Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - James C Chen
- Department of Dermatology.,Department of Systems Biology, and
| | | | | | - Mårten Cg Winge
- Program in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, California, USA
| | - M Peter Marinkovich
- Program in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, California, USA
| | - Angela M Christiano
- Department of Dermatology.,Department of Genetics and Development, Columbia University, New York, New York, USA
| | - Anthony E Oro
- Program in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, California, USA
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15
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Jabbari A, Cerise JE, Chen JC, Mackay-Wiggan J, Duvic M, Price V, Hordinsky M, Norris D, Clynes R, Christiano AM. Molecular signatures define alopecia areata subtypes and transcriptional biomarkers. EBioMedicine 2016; 7:240-7. [PMID: 27322477 PMCID: PMC4909368 DOI: 10.1016/j.ebiom.2016.03.036] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 03/23/2016] [Accepted: 03/23/2016] [Indexed: 01/24/2023] Open
Abstract
Alopecia areata (AA) is an autoimmune disease typified by nonscarring hair loss with a variable clinical course. In this study, we conducted whole genome gene expression analysis of 96 human scalp skin biopsy specimens from AA or normal control subjects. Based on gene expression profiling, samples formed distinct clusters based on the presence or absence of disease as well as disease phenotype (patchy disease compared with alopecia totalis or universalis). Differential gene expression analysis allowed us to robustly demonstrate graded immune activity in samples of increasing phenotypic severity and generate a quantitative gene expression scoring system that classified samples based on interferon and cytotoxic T lymphocyte immune signatures critical for disease pathogenesis. Gene expression analysis of 96 scalp biopsies from patients with alopecia areata (AA) and healthy controls was performed. Samples from AA patchy, alopecia universalis/totalis and control patients formed distinct clusters by gene expression. A set of gene expression biomarkers, the Alopecia Areata Disease Activity Index (ALADIN), was formulated. ALADIN distinguished AA phenotypes and normal controls. ALADIN may have utility in clinical trials of AA.
Alopecia areata is a disease characterized by autoimmune attack of the hair follicle. A complete understanding of the signaling pathways involved in the disease is lacking. Based on gene expression profiling of skin samples from 96 patients and controls, a set of biomarkers, termed the Alopecia Areata Disease Activity Index, or ALADIN, was formulated. ALADIN was able to distinguish samples from patients with patchy disease from samples from patients with the more extensive forms of disease. The usefulness of this biomarker tool is ready to be assessed in clinical trials of therapeutics for alopecia areata.
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Affiliation(s)
- Ali Jabbari
- Department of Dermatology, Columbia University, New York, NY, USA
| | - Jane E Cerise
- Department of Dermatology, Columbia University, New York, NY, USA
| | - James C Chen
- Department of Dermatology, Columbia University, New York, NY, USA; Department of Systems Biology, Columbia University, New York, USA
| | | | - Madeleine Duvic
- Department of Dermatology, M.D. Anderson Cancer Center, Houston, TX, USA
| | - Vera Price
- Department of Dermatology, UCSF, San Francisco, CA, USA
| | - Maria Hordinsky
- Department of Dermatology, University of Minnesota, Minneapolis, MN, USA
| | - David Norris
- Department of Dermatology, University of Colorado, Denver, CO, USA
| | - Raphael Clynes
- Department of Dermatology, Columbia University, New York, NY, USA
| | - Angela M Christiano
- Department of Dermatology, Columbia University, New York, NY, USA; Department of Genetics & Development, Columbia University, New York, NY, USA
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16
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Chen JC, Cerise JE, Jabbari A, Clynes R, Christiano AM. Master regulators of infiltrate recruitment in autoimmune disease identified through network-based molecular deconvolution. Cell Syst 2015; 1:326-337. [PMID: 26665180 DOI: 10.1016/j.cels.2015.11.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Network-based molecular modeling of physiological behaviors has proven invaluable in the study of complex diseases such as cancer, but these approaches remain largely untested in contexts involving interacting tissues such as autoimmunity. Here, using Alopecia Areata (AA) as a model, we have adapted regulatory network analysis to specifically isolate physiological behaviors in the skin that contribute to the recruitment of immune cells in autoimmune disease. We use context-specific regulatory networks to deconvolve and identify skin-specific regulatory modules with IKZF1 and DLX4 as master regulators (MRs). These MRs are sufficient to induce AA-like molecular states in vitro in three cultured cell lines, resulting in induced NKG2D-dependent cytotoxicity. This work demonstrates the feasibility of a network-based approach for compartmentalizing and targeting molecular behaviors contributing to interactions between tissues in autoimmune disease.
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Affiliation(s)
- James C Chen
- Department of Dermatology, Herbert Irving Pavilion, Columbia University, 161 Fort Washington Avenue, New York, NY, 10032, USA ; Department of Systems Biology, Columbia University, 1130 Saint Nicholas Avenue, New York, NY, 10032, USA
| | - Jane E Cerise
- Department of Dermatology, Herbert Irving Pavilion, Columbia University, 161 Fort Washington Avenue, New York, NY, 10032, USA
| | - Ali Jabbari
- Department of Dermatology, Herbert Irving Pavilion, Columbia University, 161 Fort Washington Avenue, New York, NY, 10032, USA
| | - Raphael Clynes
- Department of Dermatology, Herbert Irving Pavilion, Columbia University, 161 Fort Washington Avenue, New York, NY, 10032, USA
| | - Angela M Christiano
- Department of Dermatology, Herbert Irving Pavilion, Columbia University, 161 Fort Washington Avenue, New York, NY, 10032, USA ; Department of Genetics and Development, Columbia University, 701 West 168th Street, New York, NY, 10032, USA
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17
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Harel S, Higgins CA, Cerise JE, Dai Z, Chen JC, Clynes R, Christiano AM. Pharmacologic inhibition of JAK-STAT signaling promotes hair growth. Sci Adv 2015; 1:e1500973. [PMID: 26601320 PMCID: PMC4646834 DOI: 10.1126/sciadv.1500973] [Citation(s) in RCA: 140] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 07/30/2015] [Indexed: 05/02/2023]
Abstract
Several forms of hair loss in humans are characterized by the inability of hair follicles to enter the growth phase (anagen) of the hair cycle after being arrested in the resting phase (telogen). Current pharmacologic therapies have been largely unsuccessful in targeting pathways that can be selectively modulated to induce entry into anagen. We show that topical treatment of mouse and human skin with small-molecule inhibitors of the Janus kinase (JAK)-signal transducer and activator of transcription (STAT) pathway results in rapid onset of anagen and subsequent hair growth. We show that JAK inhibition regulates the activation of key hair follicle populations such as the hair germ and improves the inductivity of cultured human dermal papilla cells by controlling a molecular signature enriched in intact, fully inductive dermal papillae. Our findings open new avenues for exploration of JAK-STAT inhibition for promotion of hair growth and highlight the role of this pathway in regulating the activation of hair follicle stem cells.
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Affiliation(s)
- Sivan Harel
- Department of Dermatology, Columbia University, New York, NY 10032, USA
| | - Claire A. Higgins
- Department of Dermatology, Columbia University, New York, NY 10032, USA
| | - Jane E. Cerise
- Department of Dermatology, Columbia University, New York, NY 10032, USA
| | - Zhenpeng Dai
- Department of Dermatology, Columbia University, New York, NY 10032, USA
| | - James C. Chen
- Department of Dermatology, Columbia University, New York, NY 10032, USA
- Department of Systems Biology, Columbia University, New York, NY 10032, USA
| | - Raphael Clynes
- Department of Dermatology, Columbia University, New York, NY 10032, USA
| | - Angela M. Christiano
- Department of Dermatology, Columbia University, New York, NY 10032, USA
- Department of Genetics and Development, Columbia University, New York, NY 10032, USA
- Corresponding author. E-mail:
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18
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Jabbari A, Dai Z, Xing L, Cerise JE, Ramot Y, Berkun Y, Sanchez GAM, Goldbach-Mansky R, Christiano AM, Clynes R, Zlotogorski A. Reversal of Alopecia Areata Following Treatment With the JAK1/2 Inhibitor Baricitinib. EBioMedicine 2015; 2:351-5. [PMID: 26137574 PMCID: PMC4486197 DOI: 10.1016/j.ebiom.2015.02.015] [Citation(s) in RCA: 132] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 02/20/2015] [Accepted: 02/24/2015] [Indexed: 12/24/2022] Open
Abstract
Background Alopecia areata (AA) is an autoimmune disease resulting in hair loss with devastating psychosocial consequences. Despite its high prevalence, there are no FDA-approved treatments for AA. Prior studies have identified a prominent interferon signature in AA, which signals through JAK molecules. Methods A patient with AA was enrolled in a clinical trial to examine the efficacy of baricitinib, a JAK1/2 inhibitor, to treat concomitant CANDLE syndrome. In vivo, preclinical studies were conducted using the C3H/HeJ AA mouse model to assess the mechanism of clinical improvement by baricitinib. Findings The patient exhibited a striking improvement of his AA on baricitinib over several months. In vivo studies using the C3H/HeJ mouse model demonstrated a strong correlation between resolution of the interferon signature and clinical improvement during baricitinib treatment. Interpretation Baricitinib may be an effective treatment for AA and warrants further investigation in clinical trials.
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Affiliation(s)
- Ali Jabbari
- Department of Dermatology, Columbia University, New York, NY, USA
| | - Zhenpeng Dai
- Department of Dermatology, Columbia University, New York, NY, USA
| | - Luzhou Xing
- Department of Pathology, Columbia University, New York, NY, USA
| | - Jane E Cerise
- Department of Dermatology, Columbia University, New York, NY, USA
| | - Yuval Ramot
- Department of Dermatology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Yackov Berkun
- Department of Pediatrics, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | | | | | - Angela M Christiano
- Department of Dermatology, Columbia University, New York, NY, USA ; Department of Genetics & Development, Columbia University, New York, NY, USA
| | - Raphael Clynes
- Department of Dermatology, Columbia University, New York, NY, USA ; Department of Pathology, Columbia University, New York, NY, USA ; Department of Medicine, Columbia University, New York, NY, USA
| | - Abraham Zlotogorski
- Department of Dermatology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
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19
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Umegaki-Arao N, Pasmooij AMG, Itoh M, Cerise JE, Guo Z, Levy B, Gostyński A, Rothman LR, Jonkman MF, Christiano AM. Induced pluripotent stem cells from human revertant keratinocytes for the treatment of epidermolysis bullosa. Sci Transl Med 2014; 6:264ra164. [PMID: 25429057 DOI: 10.1126/scitranslmed.3009342] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023]
Abstract
Revertant mosaicism is a naturally occurring phenomenon involving spontaneous correction of a pathogenic gene mutation in a somatic cell. It has been observed in several genetic diseases, including epidermolysis bullosa (EB), a group of inherited skin disorders characterized by blistering and scarring. Induced pluripotent stem cells (iPSCs), generated from fibroblasts or keratinocytes, have been proposed as a treatment for EB. However, this requires genome editing to correct the mutations, and, in gene therapy, efficiency of targeted gene correction and deleterious genomic modifications are still limitations of translation. We demonstrate the generation of iPSCs from revertant keratinocytes of a junctional EB patient with compound heterozygous COL17A1 mutations. These revertant iPSCs were then differentiated into naturally genetically corrected keratinocytes that expressed type XVII collagen (Col17). Gene expression profiling showed a strong correlation between gene expression in revertant iPSC-derived keratinocytes and the original revertant keratinocytes, indicating the successful differentiation of iPSCs into the keratinocyte lineage. Revertant-iPSC keratinocytes were then used to create in vitro three-dimensional skin equivalents and reconstitute human skin in vivo in mice, both of which expressed Col17 in the basal layer. Therefore, revertant keratinocytes may be a viable source of spontaneously gene-corrected cells for developing iPSC-based therapeutic approaches in EB.
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Affiliation(s)
| | - Anna M G Pasmooij
- Department of Dermatology, University Medical Center Groningen, University of Groningen, Groningen 9700 RB, the Netherlands
| | - Munenari Itoh
- Department of Dermatology, Columbia University, New York, NY 10032, USA. Department of Dermatology, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Jane E Cerise
- Department of Dermatology, Columbia University, New York, NY 10032, USA
| | - Zongyou Guo
- Department of Dermatology, Columbia University, New York, NY 10032, USA
| | - Brynn Levy
- Department of Pathology and Cell Biology, Columbia University, New York, NY 10032, USA
| | - Antoni Gostyński
- Department of Dermatology, University Medical Center Groningen, University of Groningen, Groningen 9700 RB, the Netherlands
| | - Lisa R Rothman
- Department of Dermatology, Columbia University, New York, NY 10032, USA
| | - Marcel F Jonkman
- Department of Dermatology, University Medical Center Groningen, University of Groningen, Groningen 9700 RB, the Netherlands
| | - Angela M Christiano
- Department of Dermatology, Columbia University, New York, NY 10032, USA. Department of Genetics and Development, Columbia University, New York, NY 10032, USA.
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20
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Abstract
Statistical tests on rare variant data may well have type I error rates that differ from their nominal levels. Here, we use the Genetic Analysis Workshop 17 data to estimate type I error rates and powers of three models for identifying rare variants associated with a phenotype: (1) by using the number of minor alleles, age, and smoking status as predictor variables; (2) by using the number of minor alleles, age, smoking status, and the identity of the population of the subject as predictor variables; and (3) by using the number of minor alleles, age, smoking status, and ancestry adjustment using 10 principal component scores. We studied both quantitative phenotype and a dichotomized phenotype. The model with principal component adjustment has type I error rates that are closer to the nominal level of significance of 0.05 for single-nucleotide polymorphisms (SNPs) in noncausal genes for the selected phenotype than the model directly adjusting for population. The principal component adjustment model type I error rates are also closer to the nominal level of 0.05 for noncausal SNPs located in causal genes for the phenotype. The power for causal SNPs with the principal component adjustment model is comparable to the power of the other methods. The power using the underlying quantitative phenotype is greater than the power using the dichotomized phenotype.
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Affiliation(s)
- Jing Jin
- Department of Applied Mathematics and Statistics, State University of New York at Stony Brook, Stony Brook, NY 11733, USA.
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