1
|
Moshirfar M, Masud M, Harvey DH, Payne C, Bruce E, Ronquillo YC, Hoopes PC. The Multifold Etiologies of Limbal Stem Cell Deficiency: A Comprehensive Review on the Etiologies and Additional Treatment Options for Limbal Stem Cell Deficiency. J Clin Med 2023; 12:4418. [PMID: 37445454 DOI: 10.3390/jcm12134418] [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: 04/22/2023] [Revised: 06/16/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Given the various ocular manifestations of limbal stem cell insufficiency, an awareness of the genetic, acquired, and immunological causes and associated additional treatments of limbal stem cell deficiency (LSCD) is essential for providers. We performed a comprehensive review of the literature on the various etiologies and specific therapies for LSCD. The resources utilized in this review included Medline (PubMed), Embase, and Google Scholar. All English-language articles and case reports published from November 1986 through to October 2022 were reviewed in this study. There were collectively 99 articles on these topics. No other exclusion criteria were applied. Depending on the etiology, ocular manifestations of limbal stem cell deficiency range from dry eye syndrome and redness to more severe outcomes, including corneal ulceration, ocular surface failure, and vision loss. Identifying the source of damage for LSCD is critical in the treatment process, given that therapy may extend beyond the scope of the standard protocol, including artificial tears, refractive surgery, and allogeneic stem cell transplants. This comprehensive review of the literature demonstrates the various genetic, acquired, and immunological causes of LSCD and the spectrum of supplemental therapies available.
Collapse
Affiliation(s)
- Majid Moshirfar
- Hoopes Vision Research Center, Hoopes Vision, Draper, UT 84020, USA
- John A. Moran Eye Center, School of Medicine, University of Utah, Salt Lake City, UT 84132, USA
- Utah Lions Eye Bank, Murray, UT 84107, USA
| | - Maliha Masud
- School of Medicine, University of Nevada Reno, Reno, NV 89557, USA
| | - Devon Hori Harvey
- College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Carter Payne
- Hoopes Vision Research Center, Hoopes Vision, Draper, UT 84020, USA
| | - Elayna Bruce
- McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | | | - Philip C Hoopes
- Hoopes Vision Research Center, Hoopes Vision, Draper, UT 84020, USA
| |
Collapse
|
2
|
Tappeiner C, Heiligenhaus A, Halter JP, Miserocchi E, Bandello F, Goldblum D. Challenges and concepts in the diagnosis and management of ocular graft-versus-host disease. Front Med (Lausanne) 2023; 10:1133381. [PMID: 36891189 PMCID: PMC9987249 DOI: 10.3389/fmed.2023.1133381] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 01/18/2023] [Indexed: 02/19/2023] Open
Abstract
Graft-versus-host disease (GVHD) is characterized by tissue inflammation in the host following an allogeneic hematopoietic cell transplantation (HCT). The pathophysiology is complex and only incompletely understood yet. Donor lymphocyte interaction with the histocompatibility antigens of the host plays a crucial role in the pathogenesis of the disease. Inflammation may affect multiple organs and tissues, e.g., the gastrointestinal tract, liver, lung, fasciae, vaginal mucosa, and the eye. Subsequently, alloreactive donor-derived T and B lymphocytes may lead to severe inflammation of the ocular surface (i.e., cornea and conjunctiva) and the eyelids. Furthermore, fibrosis of the lacrimal gland may lead to severe dry eye. This review focuses on ocular GVHD (oGVHD) and provides an overview of current challenges and concepts in the diagnosis and management of oGVHD. Ophthalmic manifestations, diagnostic procedures, grading of severity and recommendations for ophthalmic examination intervals are provided. Management of ocular surface disease with lubricants, autologous serum eye drops, topical anti-inflammatory agents and systemic treatment options are described based on the current evidence. Ocular surface scarring and corneal perforation are severe complications of oGVHD. Therefore, ophthalmic screening and interdisciplinary treatment approaches are highly relevant to improve the quality of life of patients and to prevent potentially irreversible visual loss.
Collapse
Affiliation(s)
- Christoph Tappeiner
- Department of Ophthalmology, Pallas Klinik, Olten, Switzerland.,Department of Ophthalmology, University Hospital Essen, University Duisburg-Essen, Essen, Germany.,Department of Ophthalmology, San Raffaele Scientific Institute, University Vita-Salute, Milan, Italy.,Faculty of Medicine, University of Bern, Bern, Switzerland
| | - Arnd Heiligenhaus
- Department of Ophthalmology at St. Franziskus Hospital, Muenster, Germany
| | - Joerg P Halter
- Department of Hematology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Elisabetta Miserocchi
- Department of Ophthalmology, San Raffaele Scientific Institute, University Vita-Salute, Milan, Italy
| | - Francesco Bandello
- Department of Ophthalmology, San Raffaele Scientific Institute, University Vita-Salute, Milan, Italy
| | - David Goldblum
- Department of Ophthalmology, Pallas Klinik, Olten, Switzerland.,Faculty of Medicine, University of Basel, Basel, Switzerland
| |
Collapse
|
3
|
Carreno-Galeano JT, Dohlman TH, Kim S, Yin J, Dana R. A Review of Ocular Graft-versus-Host Disease: Pathophysiology, Clinical Presentation and Management. Ocul Immunol Inflamm 2021; 29:1190-1199. [PMID: 34228599 DOI: 10.1080/09273948.2021.1939390] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Graft-versus-host disease is a common complication following allogeneic hematopoetic stem cell transplantation that can affect multiple organ systems, including the eyes. Ocular GVHD (oGVHD) is characterized by a T cell-mediated immune response that leads to immune cell infiltration and inflammation of ocular structures, including the lacrimal glands, eyelids, cornea and conjunctiva. oGVHD has a significant negative impact on visual function and quality of life and successful management requires a multi-disciplinary approach with frequent monitoring. Here, we review the pathophysiology and clinical presentation of oGVHD, along with current therapeutic strategies based on our clinical experience and the reported literature.
Collapse
Affiliation(s)
| | - Thomas H Dohlman
- Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, USA
| | - Stella Kim
- Department of Ophthalmology, University of Texas McGovern Medical School, Houston, Texas, USA
| | - Jia Yin
- Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, USA
| | - Reza Dana
- Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, USA
| |
Collapse
|
4
|
Appenteng Osae E, Steven P. Meibomian Gland Dysfunction in Ocular Graft vs. Host Disease: A Need for Pre-Clinical Models and Deeper Insights. Int J Mol Sci 2021; 22:ijms22073516. [PMID: 33805326 PMCID: PMC8036656 DOI: 10.3390/ijms22073516] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 03/25/2021] [Accepted: 03/27/2021] [Indexed: 12/20/2022] Open
Abstract
Despite decades of experience with hematopoietic stem cell transplantation, we are still faced with the delicate equipoise of achieving stable ocular health post-transplantation. This is because ocular graft-versus-host disease (oGvHD) following hematopoietic stem cell transplantation frequently occurs (≥50%) among transplant patients. To date, our understanding of the pathophysiology of oGvHD especially the involvement of the meibomian gland is still limited as a result of a lack of suitable preclinical models among other. Herein, the current state of the etiology and, pathophysiology of oGvHD based on existing pre-clinical models are reviewed. The need for additional pre-clinical models and knowledge about the involvement of the meibomian glands in oGvHD are emphasized.
Collapse
Affiliation(s)
- Eugene Appenteng Osae
- College of Optometry, University of Houston, Houston, TX 77004, USA
- Correspondence: ; Tel.: +1-346-317-6273
| | - Philipp Steven
- Department of Ophthalmology, Division for Dry-Eye and Ocular GVHD, Medical Faculty, University of Cologne, 50923 Cologne, Germany;
| |
Collapse
|
5
|
Gomes JÁP, Milhomens Filho JAP. Iatrogenic corneal diseases or conditions. Exp Eye Res 2020; 203:108376. [PMID: 33279524 DOI: 10.1016/j.exer.2020.108376] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 11/26/2020] [Accepted: 11/27/2020] [Indexed: 02/06/2023]
Abstract
Any prescribed or self-administered therapy carries inherent risks of secondary adverse events. While the volume of treatments being administered through healthcare systems has been increasing, scientific advancements in our understanding of the mechanisms of pharmaceutical side effects and complications from procedures now allow us to reduce the risk of non-intentional damage to ocular health. This review summarizes the most common and leading causes of iatrogenic visual impairment, corneal diseases, and conditions that present in a general ophthalmologic practice, including a comprehensive analysis of their pathophysiology and recommendations for management and prophylaxis.Iatrogenic corneal diseases and conditions can arise from topical drugs, contact lens use, eye surgeries and procedures, systemic drugs, non-ophthalmological events, and cosmetic procedures. Topical and systemic drugs may disturb tear film homeostasis or result in ocular surface deposits. The use of ill-fitted contact lenses can trigger eye discomfort and poor hygiene conditions that can predispose to severe infections. Procedures to the eye may result in a variety of anatomical and functional complications that ophthalmologists should be aware of how to avoid or at least be prepared to manage if they occur. Even non-ophthalmological events such as non-invasive ventilation, radiation therapies and, immune-based conditions, or cosmetic procedures such as eyelash growth and fillers, can result in unwanted damage to the ocular surface.
Collapse
Affiliation(s)
- José Álvaro Pereira Gomes
- Department of Ophthalmology and Visual Sciences, Paulista School of Medicine / Federal University of São Paulo (UNIFESP), São Paulo, SP, Brazil.
| | - José Arthur Pinto Milhomens Filho
- Department of Ophthalmology and Visual Sciences, Paulista School of Medicine / Federal University of São Paulo (UNIFESP), São Paulo, SP, Brazil
| |
Collapse
|
6
|
Ocular surface system alterations in ocular graft-versus-host disease: all the pieces of the complex puzzle. Graefes Arch Clin Exp Ophthalmol 2019; 257:1341-1351. [PMID: 30944986 DOI: 10.1007/s00417-019-04301-6] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 03/11/2019] [Accepted: 03/20/2019] [Indexed: 01/01/2023] Open
Abstract
PURPOSE Graft-versus-host disease (GVHD) is a major complication of allogeneic hematopoietic stem cells transplantation, occurring in about half of transplanted patients. This condition seems to be the result of a progressive immune-mediated damage that can involve various tissues, including the eyes. The ocular surface system is the ocular structure most frequently impaired, and dry eye disease is considered the hallmark of ocular GVHD. Given the increasing prevalence and the frequent severe involvement of the ocular surface with vision-threatening complications, ocular GVHD represents a current diagnostic and therapeutic challenge. The purpose of this literature review is to describe all the clinical manifestations occurring in the setting of ocular GVHD, and to further report the outcomes of conventional and novel therapies. METHODS A literature search about ocular GVHD was performed in PubMed, Scopus, Medline databases, and ClinicalTrials.gov as well as through the reference lists of identified publications until January 2019. We have included RCTs, prospective observational studies, prospective and retrospective cohort studies, pilot studies, and review articles. RESULTS Overall, 107 articles, 3 book chapters, and 6 ongoing registered clinical trials were collected and analyzed. Ocular GVHD can affect all the structures of the entire ocular surface system, including lacrimal and meibomian glands, cornea, conjunctiva, eyelids, nasolacrimal duct, and tears. Current medical treatment is mainly focused on lubrication and control of drainage, tear evaporation, and ocular surface inflammation. Surgical treatment may be necessary in severe, recalcitrant, or complicated cases. Amniotic membrane and tectonic keratoplasty can be valid options to restore the integrity of the cornea. Recently, conjunctival and limbal transplantation from the same living-related bone marrow donor has been proposed to manage both dry eye and limbal stem cell deficiency, without any risk of immunologic rejection. CONCLUSION This review provides an up-to-date analysis on clinical findings and current and future management of ocular GVHD. A correct and prompt diagnosis along with an appropriate and aggressive treatment are fundamental for avoiding the occurrence of vision-threatening complications.
Collapse
|
7
|
Graves SS, Parker MH, Storb R. Animal Models for Preclinical Development of Allogeneic Hematopoietic Cell Transplantation. ILAR J 2018; 59:263-275. [PMID: 30010833 PMCID: PMC6808062 DOI: 10.1093/ilar/ily006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 01/22/2018] [Accepted: 06/15/2018] [Indexed: 02/01/2023] Open
Abstract
Since its inception in the 1950s, hematopoietic cell transplantation (HCT) has become a highly effective clinical treatment for malignant and nonmalignant hematological disorders. This milestone in cancer therapy was only possible through decades of intensive research using murine and canine animal models that overcame what appeared in the early days to be insurmountable obstacles. Conditioning protocols for tumor ablation and immunosuppression of the recipient using irradiation and chemotherapeutic drugs were developed in mouse and dog models as well as postgrafting immunosuppression methods essential for dependable donor cell engraftment. The random-bred canine was particularly important in defining the role of histocompatibility barriers and the development of the nonmyeloablative transplantation procedure, making HCT available to elderly patients with comorbidities. Two complications limit the success of HCT: disease relapse and graft versus host disease. Studies in both mice and dogs have made significant progress toward reducing and to some degree eliminating patient morbidity and mortality associated with both disease relapse and graft versus host disease. However, more investigation is needed to make HCT more effective, safer, and available as a treatment modality for other non-life-threatening diseases such as autoimmune disorders. Here, we focus our review on the contributions made by both the murine and canine models for the successful past and future development of HCT.
Collapse
Affiliation(s)
- Scott S Graves
- Clinical Research Division of the Fred Hutchinson Cancer Research Center in Seattle, Washington
| | - Maura H Parker
- Clinical Research Division of the Fred Hutchinson Cancer Research Center in Seattle, Washington
| | - Rainer Storb
- Clinical Research Division of the Fred Hutchinson Cancer Research Center in Seattle, Washington
- Department of Medicine, University of Washington in Seattle, Washington
| |
Collapse
|
8
|
Gomes JAP, Azar DT, Baudouin C, Efron N, Hirayama M, Horwath-Winter J, Kim T, Mehta JS, Messmer EM, Pepose JS, Sangwan VS, Weiner AL, Wilson SE, Wolffsohn JS. TFOS DEWS II iatrogenic report. Ocul Surf 2017; 15:511-538. [PMID: 28736341 DOI: 10.1016/j.jtos.2017.05.004] [Citation(s) in RCA: 251] [Impact Index Per Article: 35.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Accepted: 05/02/2017] [Indexed: 01/04/2023]
Abstract
Dry eye can be caused by a variety of iatrogenic interventions. The increasing number of patients looking for eye care or cosmetic procedures involving the eyes, together with a better understanding of the pathophysiological mechanisms of dry eye disease (DED), have led to the need for a specific report about iatrogenic dry eye within the TFOS DEWS II. Topical medications can cause DED due to their allergic, toxic and immuno-inflammatory effects on the ocular surface. Preservatives, such as benzalkonium chloride, may further aggravate DED. A variety of systemic drugs can also induce DED secondary to multiple mechanisms. Moreover, the use of contact lens induces or is associated with DED. However, one of the most emblematic situations is DED caused by surgical procedures such as corneal refractive surgery as in laser-assisted in situ keratomileusis (LASIK) and keratoplasty due to mechanisms intrinsic to the procedure (i.e. corneal nerve cutting) or even by the use of postoperative topical drugs. Cataract surgery, lid surgeries, botulinum toxin application and cosmetic procedures are also considered risk factors to iatrogenic DED, which can cause patient dissatisfaction, visual disturbance and poor surgical outcomes. This report also presents future directions to address iatrogenic DED, including the need for more in-depth epidemiological studies about the risk factors, development of less toxic medications and preservatives, as well as new techniques for less invasive eye surgeries. Novel research into detection of early dry eye prior to surgeries, efforts to establish appropriate therapeutics and a greater attempt to regulate and oversee medications, preservatives and procedures should be considered.
Collapse
Affiliation(s)
- José Alvaro P Gomes
- Dept. of Ophthalmology and Visual Sciences, Federal University of Sao Paulo/Paulista School of Medicine (UNIFESP/EPM), São Paulo, SP, Brazil.
| | - Dimitri T Azar
- University of Illinois College of Medicine, Chicago, IL, USA
| | | | - Nathan Efron
- School of Optometry and Vision Science, Queensland University of Technology, Queensland, Australia
| | - Masatoshi Hirayama
- Department of Ophthalmology, School of Medicine, Keio University, Tokyo, Japan
| | | | - Terry Kim
- Duke University School of Medicine, Durham, NC, USA; Duke University Eye Center, Durham, NC, USA
| | | | - Elisabeth M Messmer
- Department of Ophthalmology, Ludwig-Maximilians-University (LMU), Munich, Germany
| | - Jay S Pepose
- Washington University School of Medicine, St. Louis, MO, USA
| | | | | | - Steven E Wilson
- Cole Eye Institute, The Cleveland Clinic, Cleveland, OH, USA
| | | |
Collapse
|
9
|
McGuirk JP, Smith JR, Divine CL, Zuniga M, Weiss ML. Wharton's Jelly-Derived Mesenchymal Stromal Cells as a Promising Cellular Therapeutic Strategy for the Management of Graft-versus-Host Disease. Pharmaceuticals (Basel) 2015; 8:196-220. [PMID: 25894816 PMCID: PMC4491656 DOI: 10.3390/ph8020196] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 03/13/2015] [Accepted: 04/08/2015] [Indexed: 02/06/2023] Open
Abstract
Allogeneic hematopoietic cell transplantation (allo-HCT), a treatment option in hematologic malignancies and bone marrow failure syndromes, is frequently complicated by Graft-versus-host disease (GVHD). The primary treatment for GVHD involves immune suppression by glucocorticoids. However, patients are often refractory to the steroid therapy, and this results in a poor prognosis. Therefore alternative therapies are needed to treat GVHD. Here, we review data supporting the clinical investigation of a novel cellular therapy using Wharton’s jelly (WJ)-derived mesenchymal stromal cells (MSCs) as a potentially safe and effective therapeutic strategy in the management of GVHD. Adult-derived sources of MSCs have demonstrated signals of efficacy in the management of GVHD. However, there are limitations, including: limited proliferation capacity; heterogeneity of cell sources; lengthy expansion time to clinical dose; expansion failure in vitro; and a painful, invasive, isolation procedure for the donor. Therefore, alternative MSC sources for cellular therapy are sought. The reviewed data suggests MSCs derived from WJ may be a safe and effective cellular therapy for GVHD. Laboratories investigated and defined the immune properties of WJ-MSCs for potential use in cellular therapy. These cells represent a more uniform cell population than bone marrow-derived MSCs, displaying robust immunosuppressive properties and lacking significant immunogenicity. They can be collected safely and painlessly from individuals at birth, rapidly expanded and stored cryogenically for later clinical use. Additionally, data we reviewed suggested licensing MSCs (activating MSCs by exposure to cytokines) to enhance effectiveness in treating GVHD. Therefore, WJCs should be tested as a second generation, relatively homogeneous allogeneic cell therapy for the treatment of GVHD.
Collapse
Affiliation(s)
- Joseph P McGuirk
- Blood and Marrow Transplant Program, The University of Kansas Medical Center, 2330 Shawnee Mission Pkwy., Suite 210 Mailstop 5003, Westwood, KS 66205, USA.
| | - J Robert Smith
- Department of Anatomy and Physiology, Kansas State University, 1600 Denison Ave., Coles Hall 228, Manhattan, KS 66506-5802, USA.
| | - Clint L Divine
- Blood and Marrow Transplant Program, The University of Kansas Medical Center, 2330 Shawnee Mission Pkwy., Suite 210 Mailstop 5003, Westwood, KS 66205, USA
| | - Micheal Zuniga
- Department of Anatomy and Physiology, Kansas State University, 1600 Denison Ave., Coles Hall 228, Manhattan, KS 66506-5802, USA.
| | - Mark L Weiss
- Department of Anatomy and Physiology, Kansas State University, 1600 Denison Ave., Coles Hall 228, Manhattan, KS 66506-5802, USA.
| |
Collapse
|
10
|
Shikari H, Antin JH, Dana R. Ocular Graft-versus-Host Disease: A Review. Surv Ophthalmol 2013; 58:233-51. [DOI: 10.1016/j.survophthal.2012.08.004] [Citation(s) in RCA: 122] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Revised: 07/30/2012] [Accepted: 08/07/2012] [Indexed: 12/13/2022]
|
11
|
McGuirk J, Weiss M. Promising cellular therapeutics for prevention or management of graft-versus-host disease (a review). Placenta 2011; 32 Suppl 4:S304-10. [PMID: 21658764 PMCID: PMC3760226 DOI: 10.1016/j.placenta.2011.04.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2011] [Revised: 04/04/2011] [Accepted: 04/17/2011] [Indexed: 12/14/2022]
Abstract
Graft-versus-host disease (GVHD) frequently occurs following allogeneic hematopoietic stem cell transplantation. The primary treatment for GVHD involves immune suppression by glucocorticoids. If patients become refractory to steroids, they have a poor prognosis. Therefore, there is a pressing need for alternative therapies to treat GVHD. Here, we review clinical data which demonstrate that a cellular therapy using mesenchymal stromal cells (MSCs) is safe and effective for GVHD. Since MSCs derived from bone marrow present certain limitations (such as time lag for expansion to clinical dose, expansion failure in vitro, painful and invasive bone marrow MSC isolation procedures), alternative sources of MSCs for cellular therapy are being sought. Here, we review data which support the notion that MSCs derived from Wharton's jelly (WJ) may be a safe and effective cellular therapy for GVHD. Many laboratories have investigated the immune properties of these discarded MSCs with an eye towards their potential use in cellular therapy. We also review data which support the notion that the licensing of MSCs (meaning the activation of MSCs by prior exposure to cytokines such as interferon-γ) may enhance their effectiveness for treatment of GVHD. In conclusion, WJCs can be collected safely and painlessly from individuals at birth, similar to the collection of cord blood, and stored cryogenically for later clinical use. Therefore, WJCs should be tested as a second generation, off-the-shelf cell therapy for the prevention or treatment of immune disorders such as GVHD.
Collapse
Affiliation(s)
- J.P. McGuirk
- University of Kansas Medical Center, Blood and Marrow Transplant Program, KS, USA
| | - M.L. Weiss
- Kansas State University, Dept of Anatomy and Physiology, Manhattan, KS 66506, USA
| |
Collapse
|