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Diaz MJ, Liu VY, Motaparthi K. Noninflammatory extrafacial edema as a clue to the diagnosis of vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic (VEXAS) syndrome. JAAD Case Rep 2024; 47:96-98. [PMID: 38689864 PMCID: PMC11058719 DOI: 10.1016/j.jdcr.2024.02.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024] Open
Affiliation(s)
- Michael J. Diaz
- College of Medicine, University of Florida, Gainesville, Florida
| | - Vivian Y. Liu
- Department of Dermatology, University of Florida, Gainesville, Florida
| | - Kiran Motaparthi
- Department of Dermatology, University of Florida, Gainesville, Florida
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Koster MJ, Lasho TL, Olteanu H, Reichard KK, Mangaonkar A, Warrington KJ, Patnaik MM. VEXAS syndrome: Clinical, hematologic features and a practical approach to diagnosis and management. Am J Hematol 2024; 99:284-299. [PMID: 37950858 DOI: 10.1002/ajh.27156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 11/13/2023]
Abstract
VEXAS (Vacuoles, E1 enzyme, X-linked, Autoinflammatory, Somatic) syndrome is a newly identified disease caused by somatic alterations in UBA1 which produce a recalcitrant inflammatory state along with hematologic disturbances. Patients with VEXAS can have a wide spectrum of clinical symptoms and providers should be familiar with the heterogeneity of associated clinical features. While hematologic parameters may be generally non-specific, peripheral blood features of macrocytosis, monocytopenia, and/or thrombocytopenia coupled with bone marrow vacuolization of erythroid or myeloid precursors should raise suspicion for this condition. Due to an increased mortality, prompt recognition and accurate diagnosis is paramount. Access to testing for confirmation of UBA1 variants is not yet universally available but clinicians should understand the current available options for genetic confirmation of this disease. Treatment options are limited due to lack of prospective clinical trials but cytokine directed therapies such as interleukin-6 inhibitors and JAK-STAT inhibitors as well as hypomethylating agents such as azacitidine have shown evidence of partial effect. Though cases are limited, allogeneic stem cell transplantation holds promise for durable response and potential cure. The intent of this review is to outline the pathophysiology of VEXAS syndrome and to provide a practical approach to diagnosis and treatment.
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Affiliation(s)
- Matthew J Koster
- Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Terra L Lasho
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Horatiu Olteanu
- Division of Hematopathology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Kaaren K Reichard
- Division of Hematopathology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Abhishek Mangaonkar
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Kenneth J Warrington
- Division of Rheumatology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Mrinal M Patnaik
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
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Han H, Chen BT, Liu Y, Wang Y, Xing L, Wang H, Zhou TJ, Jiang HL. Engineered stem cell-based strategy: A new paradigm of next-generation stem cell product in regenerative medicine. J Control Release 2024; 365:981-1003. [PMID: 38123072 DOI: 10.1016/j.jconrel.2023.12.024] [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: 09/12/2023] [Revised: 12/06/2023] [Accepted: 12/16/2023] [Indexed: 12/23/2023]
Abstract
Stem cells have garnered significant attention in regenerative medicine owing to their abilities of multi-directional differentiation and self-renewal. Despite these encouraging results, the market for stem cell products yields limited, which is largely due to the challenges faced to the safety and viability of stem cells in vivo. Besides, the fate of cells re-infusion into the body unknown is also a major obstacle to stem cell therapy. Actually, both the functional protection and the fate tracking of stem cells are essential in tissue homeostasis, repair, and regeneration. Recent studies have utilized cell engineering techniques to modify stem cells for enhancing their treatment efficiency or imparting them with novel biological capabilities, in which advances demonstrate the immense potential of engineered cell therapy. In this review, we proposed that the "engineered stem cells" are expected to represent the next generation of stem cell therapies and reviewed recent progress in this area. We also discussed potential applications of engineered stem cells and highlighted the most common challenges that must be addressed. Overall, this review has important guiding significance for the future design of new paradigms of stem cell products to improve their therapeutic efficacy.
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Affiliation(s)
- Han Han
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China
| | - Bi-Te Chen
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China
| | - Yang Liu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China
| | - Yi Wang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China
| | - Lei Xing
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China; College of Pharmacy, Yanbian University, Yanji 133002, China
| | - Hui Wang
- Department of Endocrinology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, China
| | - Tian-Jiao Zhou
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China.
| | - Hu-Lin Jiang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China; College of Pharmacy, Yanbian University, Yanji 133002, China.
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Raess PW, Sendowski M, Fett N. Treatment-Resistant Edematous Annular Plaques and Mild Leukopenia in a Man in His 60s. JAMA Dermatol 2023; 159:878-879. [PMID: 37378991 DOI: 10.1001/jamadermatol.2023.1591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2023]
Abstract
A man in his 60s presented with a 5-year history of diffuse erythematous, edematous annular plaques, low-grade fevers, and mild leukopenia. What is your diagnosis?
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Affiliation(s)
- Philipp W Raess
- Department of Pathology and Laboratory Medicine, Oregon Health & Science University, Portland
| | - Merav Sendowski
- Division of Hematology and Medical Oncology, Department of Medicine, Oregon Health & Science University, Portland
| | - Nicole Fett
- Department of Dermatology, Oregon Health & Science University, Portland
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