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1.
Turk J Ophthalmol ; 54(4): 198-204, 2024 Aug 28.
Artículo en Inglés | MEDLINE | ID: mdl-39205423

RESUMEN

Objectives: Behçet uveitis (BU) is a potentially blinding disorder. The main determinant of visual prognosis is early and appropriate treatment that provides rapid suppression of inflammatory attacks, control of subclinical inflammation, and prevention of new attacks. Our study aimed to determine the Turkish uveitis specialists' approach regarding the treatment choices and management of special situations such as pregnancy, vaccination, and surgical planning in BU patients, and to increase information sharing and raise awareness of issues where knowledge is lacking. Materials and Methods: A web-based survey including 16 questions about the treatment approach in ocular involvement of Behçet's disease was sent via e-mail to uveitis specialists in Türkiye. Based on the answers of 49 ophthalmologists who responded to the survey, we evaluated the approaches of uveitis specialists in our country to initiating treatment, selecting therapeutic agents, monitoring, switching and stopping treatment, and special situations such as surgical planning, vaccination, and pregnancy in BU patients. Results: Uveitis specialists in our country mostly act in accordance with the guidelines in the decision to start treatment, selection of therapeutic agents, and monitoring the safety of treatment in BU. However, there is a lack of information about the therapeutic approach in pregnancy and vaccination practices. It was also observed that there is no consensus on the precautions to be taken before cataract surgery. Conclusion: Our study has shown that there is a need for more detailed and widespread information sharing on treatment in preparation for ocular surgery, safety monitoring, drug use during pregnancy, and vaccination in BU patients.


Asunto(s)
Síndrome de Behçet , Humanos , Síndrome de Behçet/diagnóstico , Síndrome de Behçet/terapia , Turquía/epidemiología , Femenino , Uveítis/diagnóstico , Uveítis/terapia , Uveítis/etiología , Inmunosupresores/uso terapéutico , Masculino , Embarazo , Encuestas y Cuestionarios , Adulto
2.
J Extracell Vesicles ; 13(8): e12497, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39140452

RESUMEN

Extracellular vesicles (EVs) derived from mesenchymal stem/stromal cells (MSCs) have been recognized as promising cytotherapeutics due to their demonstrated immunomodulatory effects in various preclinical models. The immunomodulatory capabilities of EVs stem from the proteins and genetic materials they carry from parent cells, but the cargo contents of EVs are significantly influenced by MSC tissues and donors, cellular age and culture conditions, resulting in functional variations. However, there are no surrogate assays available to validate the immunomodulatory potency of MSC-EVs before in vivo administration. In previous work, we discovered that microcarrier culture conditions enhance the immunomodulatory function of MSC-EVs, as well as the levels of immunosuppressive molecules such as TGF-ß1 and let-7b in MSC-EVs. Building on these findings, we investigated whether TGF-ß1 levels in MSC-EVs could serve as a surrogate biomarker for predicting their potency in vivo. Our studies revealed a strong correlation between TGF-ß1 and let-7b levels in MSC-EVs, as well as their capacity to suppress IFN-γ secretion in stimulated splenocytes, establishing biopotency and surrogate assays for MSC-EVs. Subsequently, we validated MSC-EVs generated from monolayer cultures (ML-EVs) or microcarrier cultures (MC-EVs) using murine models of experimental autoimmune uveoretinitis (EAU) and additional in vitro assays reflecting the Mode of Action of MSC-EVs in vivo. Our findings demonstrated that MC-EVs carrying high levels of TGF-ß1 exhibited greater efficacy than ML-EVs in halting disease progression in mice with EAU as well as inducing apoptosis and inhibiting the chemotaxis of retina-reactive T cells. Additionally, MSC-EVs suppressed the MAPK/ERK pathway in activated T cells, with treatment using TGF-ß1 or let-7b showing similar effects on the MAPK/ERK pathway. Collectively, our data suggest that MSC-EVs directly inhibit the infiltration of retina-reactive T cells toward the eyes, thereby halting the disease progression in EAU mice, and their immunomodulatory potency in vivo can be predicted by their TGF-ß1 levels.


Asunto(s)
Vesículas Extracelulares , Células Madre Mesenquimatosas , MicroARNs , Factor de Crecimiento Transformador beta1 , Uveítis , Vesículas Extracelulares/metabolismo , Células Madre Mesenquimatosas/metabolismo , Animales , Ratones , Uveítis/terapia , Uveítis/inmunología , Uveítis/metabolismo , Factor de Crecimiento Transformador beta1/metabolismo , MicroARNs/metabolismo , Enfermedades Autoinmunes/terapia , Enfermedades Autoinmunes/inmunología , Modelos Animales de Enfermedad , Inmunomodulación , Ratones Endogámicos C57BL , Humanos , Femenino
3.
Ophthalmologie ; 121(8): 665-678, 2024 Aug.
Artículo en Alemán | MEDLINE | ID: mdl-39037464

RESUMEN

Approximately 0.5-1% of patients with multiple sclerosis (MS) have co-existing uveitis. Both intraocular inflammation and MS mainly affect women in younger adulthood. The MS in patients is most frequently associated with an often bilateral intermediate uveitis with typical concomitant retinal vasculitis. Both diseases share similar characteristics with chronic inflammatory diseases with a relapsing course and an immune-mediated pathogenesis; however, it is still unclear whether the co-occurrence of uveitis and MS in the same patient represents a coincidence of two separate disease entities or whether uveitis is a rare clinical manifestation of MS. In the differential diagnostics of intermediate uveitis, clinical symptoms and signs of MS should be considered. As both diseases are considered to be immune-mediated, immunotherapy is the main treatment option. In recent years the range of medications has expanded and includes several disease modifying drugs (biologics). When selecting the active substance it must be taken into account that tumor necrosis factor (TNF) alpha blockers are contraindicated in patients with MS.


Asunto(s)
Esclerosis Múltiple , Uveítis , Humanos , Esclerosis Múltiple/diagnóstico , Esclerosis Múltiple/terapia , Uveítis/diagnóstico , Uveítis/terapia , Uveítis/tratamiento farmacológico , Diagnóstico Diferencial , Inmunoterapia/métodos , Femenino
4.
Biochem Biophys Res Commun ; 723: 150212, 2024 09 03.
Artículo en Inglés | MEDLINE | ID: mdl-38850812

RESUMEN

Due to the presence of protective mechanisms and blood-ocular barriers in the eye, drugs aimed at treating posterior segment ophthalmic disorder have to be administrated mostly through periocular or intravitreal injection. In the current study, we sought to investigate whether topical ophthalmic instillation of human mesenchymal stem cells (hMSCs)-derived exosomes can prevent and treat experimental autoimmune uveitis (EAU), a posterior segment ophthalmic disease induced in animals and considered a model of human autoimmune diseases of the eye. Our studies reveal that topical ophthalmic instillation of hMSCs-derived exosomes can effectively ameliorate EAU. More importantly, we demonstrate that exosomes modified by trans-activator of transcription peptide (TAT) were more effective than naive exosomes in penetrating ocular barrier and preventing/treating EAU. Taken together, these results indicate that topical ophthalmic instillation of TAT-peptide modified exosomes represents a novel non-invasive therapeutic strategy for posterior-segment ophthalmic disorders.


Asunto(s)
Exosomas , Células Madre Mesenquimatosas , Uveítis , Exosomas/metabolismo , Exosomas/trasplante , Células Madre Mesenquimatosas/metabolismo , Células Madre Mesenquimatosas/citología , Humanos , Animales , Uveítis/terapia , Uveítis/metabolismo , Uveítis/patología , Administración Oftálmica , Ratones , Enfermedades Autoinmunes/terapia , Enfermedades Autoinmunes/metabolismo , Enfermedades Autoinmunes/inmunología , Ratones Endogámicos C57BL , Administración Tópica , Segmento Posterior del Ojo/metabolismo , Femenino
5.
Med Sci Monit ; 30: e943240, 2024 May 07.
Artículo en Inglés | MEDLINE | ID: mdl-38711247

RESUMEN

Behçet uveitis poses significant management challenges, owing to its intricate pathogenesis and the severe prognosis it harbors, frequently culminating in irreversible visual impairment and an elevated risk of blindness. This review synthesizes contemporary insights into personalized immunosuppressive strategies for Behçet uveitis, emphasizing the necessity for a customized approach in recognition of the disease's heterogeneity and the variable responsiveness to treatment. This discourse elaborates on the application, efficacy, and safety profiles of traditional immunosuppressants, highlighting a paradigm shift toward integrative combination therapies aimed at diminishing reliance on glucocorticoids and mitigating their associated adverse effects. This thorough evaluation seeks to enlighten clinical practices and spearhead future investigations aimed at refining the management of Behçet uveitis, championing a personalized, multidisciplinary strategy to amplify therapeutic efficacy and enhance patient quality of life.


Asunto(s)
Síndrome de Behçet , Inmunosupresores , Uveítis , Humanos , Síndrome de Behçet/tratamiento farmacológico , Síndrome de Behçet/terapia , Síndrome de Behçet/inmunología , Uveítis/inmunología , Uveítis/tratamiento farmacológico , Uveítis/terapia , Inmunosupresores/uso terapéutico , Medicina de Precisión/métodos , Calidad de Vida
6.
J Neuroinflammation ; 21(1): 133, 2024 May 22.
Artículo en Inglés | MEDLINE | ID: mdl-38778397

RESUMEN

Behcet's disease (BD) is a rare but globally distributed vasculitis that primarily affects populations in the Mediterranean and Asian regions. Behcet's uveitis (BU) is a common manifestation of BD, occurring in over two-thirds of the patients. BU is characterized by bilateral, chronic, recurrent, non-granulomatous uveitis in association with complications such as retinal ischemia and atrophy, optic atrophy, macular ischemia, macular edema, and further neovascular complications (vitreous hemorrhage, neovascular glaucoma). Although the etiology and pathogenesis of BU remain unclear, numerous studies reveal that genetic factors (such as HLA-B51), dysregulated immune responses of both the innate and adaptive immune systems, infections (such as streptococcus), and environmental factors (such as GDP) are all involved in its development. Innate immunity, including hyperactivity of neutrophils and γδT cells and elevated NK1/NK2 ratios, has been shown to play an essential role in this disease. Adaptive immune system disturbance, including homeostatic perturbations, Th1, Th17 overaction, and Treg cell dysfunction, is thought to be involved in BU pathogenesis. Treatment of BU requires a tailored approach based on the location, severity of inflammation, and systemic manifestations. The therapy aims to achieve rapid inflammation suppression, preservation of vision, and prevention of recurrence. Systemic corticosteroids combined with other immunosuppressive agents have been widely used to treat BU, and beneficial effects are observed in most patients. Recently, biologics have been shown to be effective in treating refractory BU cases. Novel therapeutic targets for treating BU include the LCK gene, Th17/Treg balance, JAK pathway inhibition, and cytokines such as IL-17 and RORγt. This article summarizes the recent studies on BU, especially in terms of pathogenesis, diagnostic criteria and classification, auxiliary examination, and treatment options. A better understanding of the significance of microbiome composition, genetic basis, and persistent immune mechanisms, as well as advancements in identifying new biomarkers and implementing objective quantitative detection of BU, may greatly contribute to improving the adequate management of BU patients.


Asunto(s)
Síndrome de Behçet , Uveítis , Humanos , Síndrome de Behçet/inmunología , Síndrome de Behçet/terapia , Uveítis/inmunología , Uveítis/terapia , Uveítis/etiología , Animales
7.
Stem Cell Res Ther ; 15(1): 149, 2024 May 23.
Artículo en Inglés | MEDLINE | ID: mdl-38783393

RESUMEN

BACKGROUND: Autoimmune uveitis is an inflammatory disease triggered by an aberrant immune response. Mesenchymal stem cell-derived small extracellular vesicles (MSC-sEVs) are emerging as potential therapeutic agents for this condition. CD73, an ectoenzyme present on MSC-sEVs, is involved in mitigating inflammation by converting extracellular adenosine monophosphate into adenosine. We hypothesize that the inhibitory effect of MSC-sEVs on experimental autoimmune uveitis (EAU) could be partially attributed to the surface expression of CD73. METHODS: To investigate novel therapeutic approaches for autoimmune uveitis, we performed lentiviral transduction to overexpress CD73 on the surface of MSC-sEVs, yielding CD73-enriched MSC-sEVs (sEVs-CD73). Mice with interphotoreceptor retinoid-binding protein (IRBP)-induced EAU were grouped randomly and treated with 50 µg MSC-sEVs, vector infected MSC-sEVs, sEVs-CD73 or PBS via single tail vein injection. We evaluated the clinical and histological features of the induced mice and analyzed the proportion and functional capabilities of T helper cells. Furthermore, T-cells were co-cultured with various MSC-sEVs in vitro, and we quantified the resulting inflammatory response to assess the potential therapeutic benefits of sEVs-CD73. RESULTS: Compared to MSC-sEVs, sEVs-CD73 significantly alleviates EAU, leading to reduced inflammation and diminished tissue damage. Treatment with sEVs-CD73 results in a decreased proportion of Th1 cells in the spleen, draining lymph nodes, and eyes, accompanied by an increased proportion of regulatory T-cells (Treg cells). In vitro assays further reveal that sEVs-CD73 inhibits T-cell proliferation, suppresses Th1 cells differentiation, and enhances Treg cells proportion. CONCLUSION: Over-expression of CD73 on MSC-sEVs enhances their immunosuppressive effects in EAU, indicating that sEVs-CD73 has the potential as an efficient immunotherapeutic agent for autoimmune uveitis.


Asunto(s)
5'-Nucleotidasa , Enfermedades Autoinmunes , Vesículas Extracelulares , Células Madre Mesenquimatosas , Uveítis , Animales , Uveítis/patología , Uveítis/terapia , Uveítis/metabolismo , Uveítis/inmunología , 5'-Nucleotidasa/metabolismo , 5'-Nucleotidasa/genética , Vesículas Extracelulares/metabolismo , Células Madre Mesenquimatosas/metabolismo , Células Madre Mesenquimatosas/citología , Células Madre Mesenquimatosas/inmunología , Ratones , Enfermedades Autoinmunes/terapia , Enfermedades Autoinmunes/patología , Enfermedades Autoinmunes/inmunología , Ratones Endogámicos C57BL , Modelos Animales de Enfermedad , Femenino , Proteínas de Unión al Retinol , Humanos
8.
J Neuroinflammation ; 21(1): 112, 2024 Apr 29.
Artículo en Inglés | MEDLINE | ID: mdl-38684986

RESUMEN

BACKGROUND: Dimethyl fumarate (DMF) is a fumaric acid ester that exhibits immunoregulatory and anti-inflammatory properties. However, the function of DMF in autoimmune uveitis (AU) is incompletely understood, and studies comprehensively exploring the impact of DMF on immune cells are still lacking. METHODS: To explore the function of DMF in uveitis and its underlying mechanisms, we conducted single-cell RNA sequencing (scRNA-seq) on the cervical draining lymph node (CDLN) cells of normal, experimental autoimmune uveitis (EAU), and DMF-treated EAU mice. Additionally, we integrated scRNA-seq data of the retina and CDLNs to identify the potential impact of DMF on ocular immune cell infiltration. Flow cytometry was conducted to verify the potential target molecules of DMF. RESULTS: Our study showed that DMF treatment effectively ameliorated EAU symptoms. The proportional and transcriptional alterations in each immune cell type during EAU were reversed by DMF treatment. Bioinformatics analysis in our study indicated that the enhanced expression of Pim1 and Cxcr4 in EAU was reversed by DMF treatment. Further experiments demonstrated that DMF restored the balance between effector T (Teff) /regulatory T (Treg) cells through inhibiting the pathway of PIM1-protein kinase B (AKT)-Forkhead box O1 (FOXO1). By incorporating the scRNA-seq data of the retina from EAU mice into analysis, our study identified that T cells highly expressing Pim1 and Cxcr4 were enriched in the retina. DMF repressed the ocular infiltration of Teff cells, and this effect might depend on its inhibition of PIM1 and CXCR4 expression. Additionally, our study indicated that DMF might reduce the proportion of plasma cells by inhibiting PIM1 expression in B cells. CONCLUSIONS: DMF effectively attenuated EAU symptoms. During EAU, DMF reversed the Teff/Treg cell imbalance and suppressed the ocular infiltration of Teff cells by inhibiting PIM1 and CXCR4 expression. Thus, DMF may act as a new drug option for the treatment of AU.


Asunto(s)
Antiinflamatorios no Esteroideos , Enfermedades Autoinmunes , Dimetilfumarato , Inmunosupresores , Retina , Uveítis , Dimetilfumarato/administración & dosificación , Dimetilfumarato/farmacología , Uveítis/genética , Uveítis/inmunología , Uveítis/terapia , Enfermedades Autoinmunes/genética , Enfermedades Autoinmunes/inmunología , Enfermedades Autoinmunes/terapia , Análisis de Expresión Génica de una Sola Célula , Modelos Animales de Enfermedad , Animales , Ratones , Femenino , Ratones Endogámicos C57BL , Receptores CXCR4/genética , Receptores CXCR4/metabolismo , Proteínas Proto-Oncogénicas c-pim-1/genética , Proteínas Proto-Oncogénicas c-pim-1/metabolismo , Transcripción Genética , Subgrupos de Linfocitos T/efectos de los fármacos , Subgrupos de Linfocitos T/inmunología , Atlas como Asunto , Inmunosupresores/administración & dosificación , Inmunosupresores/farmacología , Antiinflamatorios no Esteroideos/administración & dosificación , Antiinflamatorios no Esteroideos/farmacología , Retina/efectos de los fármacos , Retina/inmunología , Ganglios Linfáticos/efectos de los fármacos , Ganglios Linfáticos/inmunología
9.
Eye (Lond) ; 38(10): 1845-1854, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38600361

RESUMEN

Cell therapy has shown promising results for treating uveitis in preclinical studies. As the field continues to grow towards clinical translation, it is important to review and critically appraise existing studies. Herein, we analysed and critically appraised all preclinical studies using cell therapy or cell derived extracellular vesicles (EVs) for uveitis, and provided insight into mechanisms regulating ocular inflammation. We used PubMed, Medline, and Embase to search for preclinical studies examining stem cell therapy (e.g., mesenchymal stem cells [MSC]) and secreted EVs. All included studies were assessed for quality using the SYstematic Review Center for Laboratory animal Experimentation (SYRCLE) checklist. Sixteen preclinical studies from 2011 to 2022 were analysed and included in this review of which 75% (n = 12) focused only on cell therapy, 18.7% (n = 3) studies focused on EVs, and 6.3% (n = 1) study focused on both cells and EVs. MSCs were the most common type of cells used in preclinical studies (n = 15) and EVs were commonly isolated from MSCs (n = 3). Overall, both MSCs and EVs showed improvements in ocular inflammation (seen on fundoscopy/slit lamp and histology) and electroretinogram outcomes. Overall, MSC and MSC-derived EVs shown great potential as therapeutic agents for treating uveitis. Unfortunately, small sample size, risk of selection/performance bias, and lack of standardized cell harvesting or delivery protocols are some factors which limits clinical translation. Large scaled, randomized preclinical studies are required to understand the full potential of MSCs for treating uveitis.


Asunto(s)
Trasplante de Células Madre Mesenquimatosas , Células Madre Mesenquimatosas , Uveítis , Animales , Humanos , Modelos Animales de Enfermedad , Vesículas Extracelulares/trasplante , Trasplante de Células Madre Mesenquimatosas/métodos , Uveítis/terapia
10.
Eye (Lond) ; 38(13): 2545-2551, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-38605075

RESUMEN

BACKGROUND: Cases of uveitis can necessitate long-term treatment resulting in recurrent follow-up appointments. Analysing the demographic distribution and patient factors influencing treatment and time spent with physicians in this population compared to other subspecialties of ophthalmology using the National Ambulatory Medical Care Survey (NAMCS) has not previously been studied. METHODS: Data were extracted from the NAMCS database, a large, nationally representative survey of office-based specialists, entered between 2012-2016 and 2018. Demographics, time with physician, and payor types were compared between patients with a uveitis-related diagnosis codes versus all other ophthalmic subspecialty diagnoses. RESULTS: Overall, 12,870 ophthalmic patients were included of which 300 had uveitis-related diagnosis codes. Uveitis patients were more likely to be non-Caucasian (p < 0.0001 to p = 0.022), visiting the physician's office due to flare of or treatment for a chronic medical problem (p < 0.0001 to p = 0.022). Adjusted for age, sex, race, and ethnicity, uveitis patients spent a significantly longer time (mean 27.5 min) compared to comprehensive ophthalmology patients (mean 25.5 min) with their physician (p = 0.0041). Among the uveitis patient population, African American patients (p = 0.0053), Hispanic or Latino (p = 0.034), and Medicaid (p = 0.035) patients had increased office visit times. CONCLUSIONS: Those with uveitis spent more time with the physician than comprehensive patients. Race, ethnicity, payor type, and the major reason for the visit all significantly impacted uveitis office visit times. In order to manage their schedules, providers should be aware of the additional support and time needed by these patients during office visits.


Asunto(s)
Encuestas de Atención de la Salud , Oftalmología , Uveítis , Humanos , Uveítis/terapia , Masculino , Femenino , Oftalmología/estadística & datos numéricos , Persona de Mediana Edad , Estados Unidos/epidemiología , Adulto , Atención Ambulatoria/estadística & datos numéricos , Factores de Tiempo , Visita a Consultorio Médico/estadística & datos numéricos , Anciano
11.
Expert Rev Mol Med ; 26: e9, 2024 Apr 15.
Artículo en Inglés | MEDLINE | ID: mdl-38618935

RESUMEN

Glaucoma and uveitis are non-vascular ocular diseases which are among the leading causes of blindness and visual loss. These conditions have distinct characteristics and mechanisms but share a multifactorial and complex nature, making their management challenging and burdensome for patients and clinicians. Furthermore, the lack of symptoms in the early stages of glaucoma and the diverse aetiology of uveitis hinder timely and accurate diagnoses, which are a cause of poor visual outcomes under both conditions. Although current treatment is effective in most cases, it is often associated with low patient adherence and adverse events, which directly impact the overall therapeutic success. Therefore, long-lasting alternatives with improved safety and efficacy are needed. Gene therapy, particularly utilising adeno-associated virus (AAV) vectors, has emerged as a promising approach to address unmet needs in these diseases. Engineered capsids with enhanced tropism and lower immunogenicity have been proposed, along with constructs designed for targeted and controlled expression. Additionally, several pathways implicated in the pathogenesis of these conditions have been targeted with single or multigene expression cassettes, gene editing and silencing approaches. This review discusses strategies employed in AAV-based gene therapies for glaucoma and non-infectious uveitis and provides an overview of current progress and future directions.


Asunto(s)
Glaucoma , Uveítis , Humanos , Glaucoma/genética , Glaucoma/terapia , Uveítis/genética , Uveítis/terapia , Ojo , Ceguera , Terapia Genética
12.
Indian J Ophthalmol ; 72(6): 809-815, 2024 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-38454865

RESUMEN

Uveitis and its complications are more common in the developing world, in which the condition occurs in up to 714 per 100,000 in the population and accounts for up to 25% of all blindness. In India, the ophthalmic sub speciality of uveitis greatly evolved in the last four decades. In the early decades most of the studies were epidemiological studies. In recent years, more research has been published due to tremendous advancements in clinical diagnosis, laboratory investigations and ancillary test and treatment modalities. In this review article, we did a medline search with key words 'uveitis' and 'India', and selectively incorporated articles showing the evolution of this sub-speciality in India.


Asunto(s)
Uveítis , Humanos , India/epidemiología , Uveítis/diagnóstico , Uveítis/epidemiología , Uveítis/terapia , Investigación Biomédica/tendencias , Manejo de la Enfermedad , Oftalmología
13.
Zhonghua Yan Ke Za Zhi ; 60(3): 289-295, 2024 Mar 11.
Artículo en Chino | MEDLINE | ID: mdl-38462380

RESUMEN

Adeno-associated virus (AAV) vectors have been widely employed in gene therapy for ocular and systemic diseases. However, clinical trial outcomes have indicated that gene therapy may trigger severe adverse events associated with immune-inflammatory reactions, thereby impacting the safety and efficacy of gene therapy. The immune-inflammatory reaction induced after gene therapy in the eye is referred to as gene therapy-associated uveitis, which has become a major obstacle limiting the long-term and effective use of ocular gene therapy. This review comprehensively explores four aspects: the immune response mechanisms of gene therapy, ocular manifestations of associated uveitis, factors influencing immune inflammation, and preventive and therapeutic strategies. The aim is to provide insights for the development of safer and more effective ocular gene therapy.


Asunto(s)
Dependovirus , Uveítis , Humanos , Dependovirus/genética , Vectores Genéticos , Terapia Genética , Uveítis/terapia , Inmunidad
14.
Indian J Ophthalmol ; 72(Suppl 4): S584-S591, 2024 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-38317316

RESUMEN

PURPOSE: The purpose of the study was to look at the clinical spectrum, treatment options, and visual outcomes in a large cohort of pediatric uveitis from a tertiary eye care center in South India. METHODS: This is a retrospective study carried out at a tertiary eye center in South India. Cases of pediatric uveitis between January 2012 and June 2022 were retrieved from the hospital's medical database. Uveitis was classified according to the Standardization of Uveitis Nomenclature criteria. Demographic details, clinical presentation, complications, medical and surgical management, and visual outcome were evaluated. RESULTS: Two hundred and six eyes of 132 cases were included, with a median age of 12 years. The male to female ratio was 1:1. Bilaterality was seen in 63.1% of cases. The mean duration of uveitis was 11.5 ± 18.5 months, and the mean follow-up period was 20.5 ± 25.1 months. Noninfectious uveitis was seen in 70.45% cases. Most common etiology in the noninfectious group was idiopathic (27.3%), while in the infectious group, it was tuberculosis (TB; 14.4%). Immunomodulators were used in 43.9% and biologics in 10.9% of cases. Most common complications were cataract (25.24%) and posterior synechiae (21.35%). Surgical procedures were done in 12.62%. The mean visual acuity was 0.81 ± 1.14 log of minimum angle of resolution (logMAR) at presentation and 0.49 ± 0.87 logMAR at the end of the study ( P = 0.002). CONCLUSION: Pediatric uveitis poses a challenge in comparison to adult uveitis. Our study highlights the need for early diagnosis and aggressive management to prevent sequelae. Multidisciplinary approach is a key in improving the overall visual prognosis.


Asunto(s)
Uveítis , Agudeza Visual , Humanos , Niño , Masculino , India/epidemiología , Femenino , Estudios Retrospectivos , Uveítis/diagnóstico , Uveítis/epidemiología , Uveítis/terapia , Agudeza Visual/fisiología , Adolescente , Estudios de Seguimiento , Resultado del Tratamiento , Preescolar , Incidencia
15.
Clin Chest Med ; 45(1): 59-70, 2024 03.
Artículo en Inglés | MEDLINE | ID: mdl-38245371

RESUMEN

Sarcoidosis frequently affects the eye and can do so in many different ways. Sarcoidosis causing uveitis can have distinctive features that facilitate identifying sarcoidosis as the cause of the uveitis. Progress is being made in elucidating ocular sarcoidosis, as for example, by transcriptomics, genetics, therapy, and imaging.


Asunto(s)
Sarcoidosis , Uveítis , Humanos , Sarcoidosis/diagnóstico , Sarcoidosis/terapia , Sarcoidosis/complicaciones , Uveítis/diagnóstico , Uveítis/etiología , Uveítis/terapia
16.
Artículo en Inglés | MEDLINE | ID: mdl-37037600

RESUMEN

The underlying immune state of inherited retinal degenerations (IRDs) and retinitis pigmentosa (RP) has been an emerging area of interest, wherein the consequences have never been greater given the widespread recognition of gene therapy-associated uveitis (GTU) in gene therapy clinical trials. Whereas some evidence suggests that the adaptive immune system may play a role, the majority of studies indicate that the innate immune system is likely the primary driver of neuroinflammation in RP. During retinal degeneration, discrete mechanisms activate resident microglia and promote infiltrating macrophages that can either be protective or detrimental to photoreceptor cell death. This persistent stimulation of innate immunity, overlaid by the introduction of viral antigens as part of gene therapy, has the potential to trigger a complex microglia/macrophage-driven proinflammatory state. A better understanding of the immune pathophysiology in IRD and GTU will be necessary to improve the success of developing novel treatments for IRDs.


Asunto(s)
Degeneración Retiniana , Retinitis Pigmentosa , Uveítis , Humanos , Retinitis Pigmentosa/genética , Retinitis Pigmentosa/terapia , Macrófagos , Terapia Genética , Uveítis/genética , Uveítis/terapia
17.
Klin Monbl Augenheilkd ; 241(1): 119-135, 2024 Jan.
Artículo en Alemán | MEDLINE | ID: mdl-37977201

RESUMEN

Intermediate and posterior uveitis can have multiple infectious and noninfectious causes, and posterior uveitis in particular is clinically multifaceted. Some entities require prompt initiation of therapy to ensure visual prognosis. This article presents typical characteristics of intermediate and posterior uveitides and explains special features of their treatment.


Asunto(s)
Uveítis Intermedia , Uveítis Posterior , Uveítis , Humanos , Uveítis Posterior/diagnóstico , Uveítis Posterior/terapia , Uveítis/diagnóstico , Uveítis/terapia , Uveítis Intermedia/diagnóstico , Uveítis Intermedia/terapia
18.
Eur J Pharmacol ; 960: 176139, 2023 Dec 05.
Artículo en Inglés | MEDLINE | ID: mdl-38059448

RESUMEN

Autoimmune uveitis is an intraocular inflammatory disease with a high blindness rate in developed countries such as the United States. It is pressing to comprehend the pathogenesis of autoimmune uveitis and develop novel schemes for its treatment. In the present research, we demonstrated that the Notch signaling pathway was activated, and the level of miR-223-3p was significantly reduced in rats with experimental autoimmune uveitis (EAU) compared with the level of normal rats. To investigate the relationship between miR-223-3p and Notch signaling, EAU rats received miR-223-3p-carrying lentivirus, miR-223-3p vector-carrying lentivirus (miR-223-3p-N), and γ-secretase inhibitor (DAPT), respectively. The results of Q-PCR, immunological experiments, and flow cytometry analysis all support the hypothesis that both miR-223-3p and DAPT, a Notch signaling pathway inhibitor, had similar inhibitory effects on the EAU pathological process. That is to say, they could both inhibit the activation of the Notch signaling pathway via modulating recombination signal binding protein-Jκ (RBPJ) to restore the polarization imbalance of M/M2 macrophages in EAU rats. In addition, miR-223-3p could also inhibit NLRP3 inflammasome activation and inflammasome-induced pyroptosis in ocular tissues. Taken together, our findings indicate that miR-223-3p serves as an important regulator in M1 macrophage polarization and pyroptosis, thereby alleviating the inflammatory response in uveitis.


Asunto(s)
MicroARNs , Uveítis , Ratas , Animales , Proteína con Dominio Pirina 3 de la Familia NLR/genética , Inflamasomas , Piroptosis , Uveítis/metabolismo , Uveítis/terapia , Macrófagos/metabolismo , MicroARNs/genética , Transducción de Señal
19.
PLoS One ; 18(11): e0294117, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37976313

RESUMEN

BACKGROUND: Uveitis comprises a range of conditions that result in intraocular inflammation. Most sight-threatening uveitis falls into the broad category known as Non-infectious Posterior Segment-Involving Uveitis (PSIU). To evaluate treatments, trialists and clinicians must select outcome measures. The aim of this study was to understand healthcare professionals' perspectives on what outcomes are important to adult patients with PSIU and their carers. METHODS: Twelve semi-structured telephone interviews were undertaken to understand the perspectives of healthcare professionals. Interviews were audio recorded, transcribed and thematically analysed. Findings were compared with the views of patients and carers and outcomes abstracted from a previously published systematic review. RESULTS: Eleven core domains were identified as important to healthcare professionals: (1) visual function, (2) symptoms, (3) functional ability, (4) impact on relationships, (5) financial impact, (6) psychological morbidity and emotional well-being (7) psychosocial adjustment to uveitis, (8) doctor / patient / interprofessional relationships and access to health care, (9) treatment burden, (10) treatment side effects, (11) disease control. Healthcare professionals recognised a similar range of domains to patients and carers but placed more emphasis on certain outcomes, particularly in the disease control domain. In contrast the range of outcomes identified via the systematic review was limited. CONCLUSION: Healthcare professionals recognise all of the published outcome domains as patients/carers in the previous publication but with subtly differing emphasis within some domains and with a priority for certain types of measures. Healthcare professionals discussed the disease control and side effects/complications to a greater degree than patients and carers in the focus groups.


Asunto(s)
Personal de Salud , Uveítis , Adulto , Humanos , Investigación Cualitativa , Grupos Focales , Personal de Salud/psicología , Cuidadores , Relaciones Médico-Paciente , Uveítis/terapia
20.
Reumatol Clin (Engl Ed) ; 19(9): 465-477, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37839964

RESUMEN

OBJECTIVE: To develop evidence-based expert-consensus recommendations for the management of non-infectious, non-neoplastic, non-demyelinating disease associated uveitis. METHODS: Clinical research questions relevant to the objective of the document were identified, and reformulated into PICO format (patient, intervention, comparison, outcome) by a panel of experts selected based on their experience in the field. A systematic review of the available evidence was conducted, and evidence was graded according to GRADE (Grading of Recommendations Assessment, Development, and Evaluation) criteria. Subsequently, recommendations were developed. RESULTS: Three PICO questions were constructed referring to uveitis anterior, non-anterior and complicated with macular edema. A total of 19 recommendations were formulated, based on the evidence found and/or expert consensus. CONCLUSIONS: Here we present the first official recommendations of the Spanish Society of Rheumatology for the treatment of non-infectious and non-demyelinating disease associated uveitis. They can be directly applied to the Spanish healthcare system as a tool for assistance and therapeutic homogenisation.


Asunto(s)
Edema Macular , Uveítis , Humanos , Edema Macular/complicaciones , Uveítis/complicaciones , Uveítis/terapia , Revisiones Sistemáticas como Asunto , Guías de Práctica Clínica como Asunto
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