Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 57
Filtrar
Más filtros










Intervalo de año de publicación
2.
Allergol Immunopathol (Madr) ; 52(4): 53-59, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38970265

RESUMEN

BACKGROUND: Pulmonary fibrosis is a pathological hallmark of lung injury. It is an aggressive disease that replaces normal lung parenchyma by fibrotic tissue. The transforming growth factor-beta-mothers against decapentaplegic homolog 3 (TGF-ß1-Smad3) signaling pathway plays a key role in regulating lung fibrosis. Decorin (DCN), a small leucine-rich proteoglycan, has a modulatory effect on the immune system by reversibly binding with TGF-ß and reducing its bioavailability. Mesenchymal stem cell (MSC) therapy is a new strategy that has an immune-modulatory capacity. OBJECTIVE: The aim of this study was to introduce a new therapeutic approach to harness remodeling in injured lung. MATERIAL AND METHODS: Bone marrow MSCs were isolated and transduced by decorin gene. Lung injury was induced by bleomycin and mice were treated with MSCs, MSCs-decorin, and decorin. Then, oxidative stress biomarkers, remodeling biomarkers, bronchoalveolar lavage cells, and histopathology study were conducted. RESULTS: Reduced catalase and superoxide dismutase increased due to treatments. Elevated malondialdehyde, hydroxyproline, TGF-ß levels, and polymorphonuclear cells count decreased in the treated groups. Additionally, the histopathology of lung tissues showed controlled inflammation and fibrosis. CONCLUSION: Transfected decorin gene to MSCs and used cell therapy could control remodeling and bleomycin-induced lung injury.


Asunto(s)
Bleomicina , Decorina , Trasplante de Células Madre Mesenquimatosas , Células Madre Mesenquimatosas , Fibrosis Pulmonar , Decorina/genética , Decorina/metabolismo , Animales , Ratones , Fibrosis Pulmonar/inmunología , Fibrosis Pulmonar/inducido químicamente , Fibrosis Pulmonar/terapia , Lesión Pulmonar/inducido químicamente , Lesión Pulmonar/terapia , Lesión Pulmonar/inmunología , Lesión Pulmonar/genética , Transducción Genética , Estrés Oxidativo , Células Cultivadas , Modelos Animales de Enfermedad , Masculino , Humanos
3.
Artículo en Inglés | MEDLINE | ID: mdl-38995478

RESUMEN

NKT cells, unique lymphocytes bridging innate and adaptive immunity, offer significant potential for managing inflammatory disorders like asthma. Activating iNKT induces increasing IFN-γ, TGF-ß, IL-2, and IL-10 potentially suppressing allergic asthma. However, their immunomodulatory effects, including granzyme-perforin-mediated cytotoxicity, and expression of TIM-3 and TRAIL warrant careful consideration and targeted approaches. Although CAR-T cell therapy has achieved remarkable success in treating certain cancers, its limitations necessitate exploring alternative approaches. In this context, CAR-NKT cells emerge as a promising approach for overcoming these challenges, potentially achieving safer and more effective immunotherapies. Strategies involve targeting distinct IgE-receptors and their interactions with CAR-NKT cells, potentially disrupting allergen-mast cell/basophil interactions and preventing inflammatory cytokine release. Additionally, targeting immune checkpoints like PDL-2, inducible ICOS, FASL, CTLA-4, and CD137 or dectin-1 for fungal asthma could further modulate immune responses. Furthermore, artificial intelligence and machine learning hold immense promise for revolutionizing NKT cell-based asthma therapy. AI can optimize CAR-NKT cell functionalities, design personalized treatment strategies, and unlock a future of precise and effective care. This review discusses various approaches to enhancing CAR-NKT cell efficacy and longevity, along with the challenges and opportunities they present in the treatment of allergic asthma.

4.
BMC Res Notes ; 17(1): 178, 2024 Jun 26.
Artículo en Inglés | MEDLINE | ID: mdl-38918842

RESUMEN

Asthma is an airways inflammatory disease and the most common chronic disease of childhood, which causes most hospital visits and placing a heavy financial burden on families and communities. Interleukins 4, 5 and 13, play a central role in the pathogenesis of asthma. Given the importance of oral hygiene in asthmatic patients and IL-4 and 5 are involved in the inflammatory process of periodontitis, the effect of chlorhexidine as mouthwash on asthma attacks in children on serum cytokines is necessary. In this study, 375 children with asthma were divided into two groups using or non-using chlorhexidine. Blood samples were taken and cytokines were measured by ELISA. From 375 patients, 17 patients were excluded. In this study, 171 males and 187 females participated and there were 180 patients in asthma group and 178 patients in asthma/Chlorhexidine group. The levels of IL-4, IL-5 and IL-13 had no significant difference (p > 0.05) between Asthma and Asthma/Chlorhexidine groups. Using chlorhexidine as mouthwash in children with asthma had no effect on the type 2 cytokines and may not trigger an asthma attack via allergo-inflammatory mechanism.


Asunto(s)
Asma , Clorhexidina , Interleucina-4 , Antisépticos Bucales , Humanos , Clorhexidina/administración & dosificación , Asma/sangre , Asma/tratamiento farmacológico , Antisépticos Bucales/administración & dosificación , Femenino , Masculino , Niño , Interleucina-4/sangre , Interleucina-13/sangre , Interleucina-5/sangre , Citocinas/sangre , Preescolar , Antiinfecciosos Locales/administración & dosificación , Adolescente
5.
Clin Respir J ; 18(4): e13742, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38664220

RESUMEN

BACKGROUND: Allergic asthma is an important respiratory system problem characterized by airway inflammation, breathlessness, and bronchoconstriction. Allergic asthma and its outcomes are triggered by type 2 allergic immune responses. Tectorigenin is a methoxy-isoflavone with anti-inflammatory effects. In this study, we investigated the effects of tectorigenin on the pathophysiology of allergic asthma in an animal model. METHODS: Asthmatic mice were treated with tectorigenin. Then airway hyperresponsiveness (AHR), eosinophil percentage, levels of interleukin (IL)-33, IL-25, IL-13, IL-5, IL-4, total and ovalbumin (OVA)-specific immunoglobulin (Ig)E, and lung histopathology were evaluated. RESULT: Tectorigenin significantly (P 〈 0.05) reduced eosinophil infiltration (41 ± 7%) in the broncho-alveolar lavage fluid (BALF), serum IL-5 level (41 ± 5, pg/mL), and bronchial and vascular inflammation (scores of 1.3 ± 0.2 and 1.1 ± 0.3, respectively) but had no significant effects on AHR, serum levels of IL-33, -25, -13, and -4 (403 ± 24, 56 ± 7, 154 ± 11, and 89 ± 6 pg/mL, respectively), total and OVA-specific IgE (2684 ± 265 and 264 ± 19 ng/mL, respectively), goblet cell hyperplasia, and mucus production. CONCLUSION: Tectorigenin could control inflammation and the secretion of inflammatory mediators of asthma, so it can be regarded as a potential antiasthma treatment with the ability to control eosinophilia-related problems.


Asunto(s)
Antiinflamatorios , Antioxidantes , Asma , Modelos Animales de Enfermedad , Isoflavonas , Ratones Endogámicos BALB C , Ovalbúmina , Animales , Asma/tratamiento farmacológico , Asma/inducido químicamente , Asma/metabolismo , Asma/inmunología , Asma/patología , Ratones , Ovalbúmina/toxicidad , Ovalbúmina/efectos adversos , Isoflavonas/farmacología , Isoflavonas/uso terapéutico , Antioxidantes/farmacología , Antiinflamatorios/farmacología , Antiinflamatorios/uso terapéutico , Inmunoglobulina E/sangre , Líquido del Lavado Bronquioalveolar/citología , Líquido del Lavado Bronquioalveolar/inmunología , Femenino , Pulmón/patología , Pulmón/efectos de los fármacos , Pulmón/metabolismo , Pulmón/inmunología , Citocinas/metabolismo
6.
Cytokine ; 175: 156479, 2024 03.
Artículo en Inglés | MEDLINE | ID: mdl-38199086

RESUMEN

Congestive heart failure (CHF) is a complex multistage syndrome that has a great financial burden on human societies. It was known that the damaged myocardium sends a signal to stimulate the immune system and proliferation of leukocytes. In continuous, cytokine storm can be initiated and causes the probability of CHF. Persistent inflammation by increasing the levels of pro-inflammatory cytokines, plays an important role in the pathogenesis of CHF and causes remodeling, which is a progressive processs. Although treatment by drugs can reduce mortality and partially control the symptoms of heart failure patients, but complications and mortality are still high. Therefore, other treatment options such as Cardiac Resynchronization Therapy (CRT) are necessary. Today, it is known that CRT can be an effective treatment for many patients with heart failure. CRT is novel, non-pharmacological, and device-based therapy that would be beneficial to know more about its performance in the management of heart failure. In this study, we have reviewed the immunological processes involved in heart failure and the effect of CRT in controlling of the cytokine storm.


Asunto(s)
Terapia de Resincronización Cardíaca , Insuficiencia Cardíaca , Humanos , Citocinas , Síndrome de Liberación de Citoquinas/terapia , Insuficiencia Cardíaca/terapia , Resultado del Tratamiento
7.
Regen Ther ; 25: 157-161, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38178929

RESUMEN

Asthma is a pulmonary disease and its pathophysiology includes inflammation, obstruction, edema of the airways, and mucus secretions in the airways. Mesenchymal stem cells (MSCs) are self-renewal that use the therapeutic potential of these cells can be applied as treatments of asthma. In this study, the effect of Mesenchyme stem cells on asthma was investigated. MSCs were administrated for asthmatic mice and then, percentage of eosinophils in blood and bronchoalveolar lavage fluid (BALF), levels of interleukine (IL)-4 and Immunoglubolin (Ig)E were measured. Also histopathological study of lung tissue was done. MSCs administration could control percentage of eosinophils in blood and BALF, levels of IgE and IL-4, eosinophilic inflammation, mucin realizing and goblet cell hyper-plasia. Administration of MSCs as treatment of asthma can be a useful and applicable therapy in control of asthma symptoms.

8.
JAMA Oncol ; 9(10): 1401-1416, 2023 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-37676656

RESUMEN

Importance: Lip, oral, and pharyngeal cancers are important contributors to cancer burden worldwide, and a comprehensive evaluation of their burden globally, regionally, and nationally is crucial for effective policy planning. Objective: To analyze the total and risk-attributable burden of lip and oral cavity cancer (LOC) and other pharyngeal cancer (OPC) for 204 countries and territories and by Socio-demographic Index (SDI) using 2019 Global Burden of Diseases, Injuries, and Risk Factors (GBD) Study estimates. Evidence Review: The incidence, mortality, and disability-adjusted life years (DALYs) due to LOC and OPC from 1990 to 2019 were estimated using GBD 2019 methods. The GBD 2019 comparative risk assessment framework was used to estimate the proportion of deaths and DALYs for LOC and OPC attributable to smoking, tobacco, and alcohol consumption in 2019. Findings: In 2019, 370 000 (95% uncertainty interval [UI], 338 000-401 000) cases and 199 000 (95% UI, 181 000-217 000) deaths for LOC and 167 000 (95% UI, 153 000-180 000) cases and 114 000 (95% UI, 103 000-126 000) deaths for OPC were estimated to occur globally, contributing 5.5 million (95% UI, 5.0-6.0 million) and 3.2 million (95% UI, 2.9-3.6 million) DALYs, respectively. From 1990 to 2019, low-middle and low SDI regions consistently showed the highest age-standardized mortality rates due to LOC and OPC, while the high SDI strata exhibited age-standardized incidence rates decreasing for LOC and increasing for OPC. Globally in 2019, smoking had the greatest contribution to risk-attributable OPC deaths for both sexes (55.8% [95% UI, 49.2%-62.0%] of all OPC deaths in male individuals and 17.4% [95% UI, 13.8%-21.2%] of all OPC deaths in female individuals). Smoking and alcohol both contributed to substantial LOC deaths globally among male individuals (42.3% [95% UI, 35.2%-48.6%] and 40.2% [95% UI, 33.3%-46.8%] of all risk-attributable cancer deaths, respectively), while chewing tobacco contributed to the greatest attributable LOC deaths among female individuals (27.6% [95% UI, 21.5%-33.8%]), driven by high risk-attributable burden in South and Southeast Asia. Conclusions and Relevance: In this systematic analysis, disparities in LOC and OPC burden existed across the SDI spectrum, and a considerable percentage of burden was attributable to tobacco and alcohol use. These estimates can contribute to an understanding of the distribution and disparities in LOC and OPC burden globally and support cancer control planning efforts.


Asunto(s)
Carga Global de Enfermedades , Neoplasias Faríngeas , Adulto , Femenino , Humanos , Masculino , Salud Global , Incidencia , Labio , Neoplasias Faríngeas/epidemiología , Años de Vida Ajustados por Calidad de Vida , Factores de Riesgo , Uso de Tabaco/epidemiología
9.
ESC Heart Fail ; 10(6): 3250-3257, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37776150

RESUMEN

N terminal pro brain natriuretic peptide (NT-proBNP) plays an important role in the diagnosis and prognosis of heart failure (HF). The plasma level of NT-proBNP in atrial fibrillation (AF) patients was higher than of sinus rhythm patients. In HF, NT-proBNP levels are affected by the concomitant presence of AF, making it difficult to distinguish between HF and AF in patients with elevated NT-proBNP. Several other diseases, such as renal failure and pulmonary embolism, are known to further increase NT-proBNP levels in patients with concomitant HF. Therefore, NT-proBNP is a sensitive but non-specific marker for the detection of HF. AF is very important in this regard because among patients with HF regardless of ejection fraction, symptoms such as shortness of breath and atrial enlargement develop and can mimic HF. In the present study, we investigated whether the prognostic value of natriuretic peptides in HF holds true for patients with concomitant AF.


Asunto(s)
Fibrilación Atrial , Insuficiencia Cardíaca , Humanos , Fibrilación Atrial/complicaciones , Fibrilación Atrial/diagnóstico , Insuficiencia Cardíaca/complicaciones , Insuficiencia Cardíaca/diagnóstico , Péptido Natriurético Encefálico , Fragmentos de Péptidos
10.
Allergol Immunopathol (Madr) ; 51(3): 111-116, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37169568

RESUMEN

Allergic rhinitis (AR) is a common atopic problem in which immune response to the environmental factors leads to clinical symptoms. Helicobacter pylori neutrophil-activating protein (HP-NAP) as a peptide attenuates Th2 response and stimulates Th1 activation and mucus adhesion promoting protein (MapA) as a cell-surface protein binds to mucus. This study evaluated the effect of HP-NAP and MapA conjugated with alumina nanoparticle on AR. HP-NAP and HP-NAP with MapA were conjugated to alumina nanoparticle and two separate nanoparticles were produced. The AR mice were treated with these and HP-NAP in peptide form. The AR symptoms, gene expression of mucus, levels of IL-33 and IL-4, and total and ovalbumin (OVA)-specific IgE levels were evaluated. Nasal rubbing, sneezing, gene expression of mucus, and IL-33 and IL-4 levels, and OVA-specific and total IgE were decreased in three treated groups compared to AR, and there was a significant decrease in the symptoms in AR-H-M-A group (P < 0.05) when compared to the other treated groups. HP-NAP has a controlling effect on AR, and in nanoparticle-conjugated form it can strongly attach to the airway's mucus via MapA. Therefore, cooperation of HP-NAP-alumina with MapA can produce an effective and applicable treatment for AR.


Asunto(s)
Interleucina-33 , Rinitis Alérgica , Animales , Ratones , Interleucina-4 , Células Th2 , Ovalbúmina , Inmunoglobulina E/metabolismo , Antiinflamatorios/uso terapéutico , Ratones Endogámicos BALB C , Modelos Animales de Enfermedad , Citocinas/metabolismo , Mucosa Nasal/metabolismo
11.
Allergol Immunopathol (Madr) ; 51(2): 45-51, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36916087

RESUMEN

Asthma is an important pulmonary disease associated with T helper lymphocyte (Th)2 dominant immune response, which can initiate allergic and inflammatory reactions. Interleukin (IL)-10 is the main immune suppressor cytokine, and mesenchymal stem cells (MSCs) have an immune-modulatory potential that can be transduced with the expression of the IL-10 gene to control pathophysiology of allergic asthma. Bone marrow's MSCs were isolated and transduced with the expression vector that contains the expressible IL-10 gene. Then, allergic asthma mouse model was produced and treated with manipulated MSCs. Methacholine challenge test; measurement of IL-4, IL-5, IL-8, IL-13, IL-25, and IL-33; and total and ovalbumin (OVA)-specific immunoglobulin (Ig)E levels were done. Hyperplasia of the goblet cell, secretion of mucus, and peribronchiolar and perivascular eosinophilic inflammation were evaluated in lung pathological sections. IL-25, IL-33, and total IgE levels; AHR; eosinophilic inflammation; hyperplasia of the goblet cell; and secretion of mucus could be controlled in M, MV, and MV-10 groups, and the control in the MV-10 group was strong compared to M and MV groups. MSCs have immune-modulatory capacity that can control allergic asthma pathophysiology, and this effect can be strengthened and reinforced by the expression of IL-10 gene.


Asunto(s)
Asma , Eosinofilia , Células Madre Mesenquimatosas , Animales , Ratones , Asma/genética , Asma/terapia , Líquido del Lavado Bronquioalveolar , Citocinas , Modelos Animales de Enfermedad , Hiperplasia/patología , Inmunoglobulina E , Inflamación , Interleucina-10/genética , Interleucina-33 , Pulmón/patología , Ratones Endogámicos BALB C , Ovalbúmina
12.
Allergol. immunopatol ; 51(2): 45-51, 01 mar. 2023. ilus, graf
Artículo en Inglés | IBECS | ID: ibc-216797

RESUMEN

Asthma is an important pulmonary disease associated with T helper lymphocyte (Th)2 dominant immune response, which can initiate allergic and inflammatory reactions. Interleukin (IL)-10 is the main immune suppressor cytokine, and mesenchymal stem cells (MSCs) have an immune-modulatory potential that can be transduced with the expression of the IL-10 gene to control pathophysiology of allergic asthma. Bone marrow’s MSCs were isolated and transduced with the expression vector that contains the expressible IL-10 gene. Then, allergic asthma mouse model was produced and treated with manipulated MSCs. Methacholine challenge test; measurement of IL-4, IL-5, IL-8, IL-13, IL-25, and IL-33; and total and ovalbumin (OVA)-specific immunoglobulin (Ig)E levels were done. Hyperplasia of the goblet cell, secretion of mucus, and peribronchiolar and perivascular eosinophilic inflammation were evaluated in lung pathological sections. IL-25, IL-33, and total IgE levels; AHR; eosinophilic inflammation; hyperplasia of the goblet cell; and secretion of mucus could be controlled in M, MV, and MV-10 groups, and the control in the MV-10 group was strong compared to M and MV groups. MSCs have immune-modulatory capacity that can control allergic asthma pathophysiology, and this effect can be strengthened and reinforced by the expression of IL-10 gene (AU)


Asunto(s)
Animales , Masculino , Ratones , Tratamiento Basado en Trasplante de Células y Tejidos , Terapia Genética , Asma/terapia , Hipersensibilidad/terapia , Interleucina-10 , Células Madre Mesenquimatosas , Modelos Animales de Enfermedad , Ratones Endogámicos BALB C , Células Cultivadas , Transducción Genética
13.
J Investig Med ; 71(3): 235-243, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36803044

RESUMEN

Asthma is a complex respiratory disease, which is controlled by genetic and environmental factors. Type 2-dominant immune response is responsible for asthma. Decorin (Dcn) and stem cells have modulatory effect on immune system and may control tissue remodeling and asthma pathophysiology. In this study, immunomodulatory effect of transduced induced pluripotent stem cells (iPSCs) with expression of Dcn gene on allergic asthma pathophysiology was evaluated. After transduction of iPSCs with Dcn gene, allergic asthma mice were treated with iPSCs and transduced iPSCs via intrabronchial. Then, airway hyperresponsiveness (AHR), levels of interleukin (IL)-4, IL-5, IL-13, IL-33, total IgE, leukotrienes (LTs) B4, C4, hydroxyproline (HP) content, and transforming growth factor-beta (TGF-ß) were measured. Also, lung histopathology study was done. AHR, levels of IL-4, IL-5, IL-13, IL-33, total IgE, LTs B4, C4, TGF-ß, HP content, mucus secretion, goblet cell hyperplasia, and eosinophilic inflammation were controlled by iPSCs and transduced iPSCs treatment. Therapeutic effect of iPSCs could control main allergic asthma symptoms and related pathophysiologic mechanisms and the effect can be increased when applied with Dcn expression gene.


Asunto(s)
Asma , Células Madre Pluripotentes Inducidas , Ratones , Animales , Interleucina-33 , Decorina/genética , Interleucina-13/metabolismo , Células Madre Pluripotentes Inducidas/metabolismo , Células Madre Pluripotentes Inducidas/patología , Interleucina-5/metabolismo , Pulmón/patología , Asma/genética , Factor de Crecimiento Transformador beta/metabolismo , Inmunoglobulina E , Modelos Animales de Enfermedad , Ratones Endogámicos BALB C , Citocinas/metabolismo
14.
Allergol Immunopathol (Madr) ; 51(1): 110-115, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36617829

RESUMEN

Asthma is a chronic airway disease. Allergic reactions and T helper (h)2 immune response play a key role in asthma occurrence. Cell therapy can control inflammation and remodeling responses in allergic asthma, and cytokines can change this effect. Therefore, in this study, the effect of treated cell therapy with IL-2 to control allergic asthma was studied. Bone marrow cells were extracted and co-cultured with IL-2 and the cells were used via intra-tracheal administration in allergic asthma mice. Levels of IL-4, IL-5, IL-13, Leukotriene B4 and C4, and remodeling factors were measured. At least, a histopathology test of lung tissue was done. Type2 cytokines, leukotrienes, remodeling factors, mucus secretion, goblet cell hyperplasia, peri-bronchial and peri-vascular inflammation were significantly (p˂0.05) decreased by treating with bone marrow-derived mononuclear cells (BMDMCs) and IL-2-BMDMCs. Treatment with IL-2-BMDMCs could significantly decrease IL-13, transforming growth factor (TGF)-ß, HP levels, and mucus secretion (p˂0.05) compared to BMDMCs treatment. In this study, BMDMCs and IL-2-BMDMCs therapy could decrease inflammation, allergic, and remodeling factors in allergic asthma. Cell therapy with BMDMCs had a strong and notable effect on the control of allergic asthma pathophysiology when co-cultured and used with IL-2.


Asunto(s)
Asma , Hipersensibilidad , Interleucina-2 , Leucocitos Mononucleares , Animales , Ratones , Asma/patología , Médula Ósea , Líquido del Lavado Bronquioalveolar , Citocinas/metabolismo , Modelos Animales de Enfermedad , Hipersensibilidad/patología , Inflamación/patología , Interleucina-13 , Interleucina-2/farmacología , Pulmón/patología , Ratones Endogámicos BALB C , Ovalbúmina , Factor de Crecimiento Transformador beta
15.
J Investig Med ; 71(2): 71-80, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36647329

RESUMEN

The pandemic of COVID-19 in worldwide causes recent millions of morbidity and mortality in all countries and is the most important challenge in the world in recent years. Coronavirus is a single-stranded RNA virus and infection with COVID-19 leads to acute respiratory distress syndrome, lung inflammation, cytokine storm, and death. The other complications include endothelial dysfunction, activation of coagulation, thromboembolic events, and vascular disease. Cardiovascular complications such as myocardial and stroke ischemia, pulmonary thromboembolism, systemic arterial, and deep vein thrombosis were reported. In this review, we presented immuno-pathological mechanisms and the effects of COVID-19 on the cardiovascular system, heart, vessels, coagulation system, and molecular glance of immuno-inflammation to the COVID-19's pathology on the cardiovascular system.


Asunto(s)
COVID-19 , Enfermedades Cardiovasculares , Tromboembolia , Humanos , COVID-19/complicaciones , Enfermedades Cardiovasculares/complicaciones , SARS-CoV-2 , Tromboembolia/etiología , Inflamación/complicaciones
16.
J Drug Target ; 31(3): 296-309, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36398476

RESUMEN

In this study, epithelial cell adhesion molecule (EpCAM) aptamer-activated nanoparticles (Ap-NPs) were synthesised to enhance treatment efficiency in colorectal cancer (CRC). PLGA [poly(d, l-lactide-co-glycolide)] copolymer was fabricated by conjugation of COOH-PEG-NH2 to PLGA-COOH through an EDC/NHS-mediated chemistry. Afterwards, 5-fluorouracil-loaded (FU) nanoparticles were prepared using the water/oil/water double emulsion solvent evaporation method. The in vitro cytotoxicity of formulations was evaluated using the MTT assay in HCT-116, CT-26 and HEK-293 cell lines. For in vivo study, tumour-bearing BALB/c mice were established by subcutaneous injection of CT-26 cell line. The results indicated that fabricated AP-FU-NPs had 101 nm size with a spherical surface, relatively homogeneously and, satisfactory encapsulation efficiency (83.93%). In vitro experiments revealed that Ap-FU-NPs had a superior in vitro cytotoxicity than both FU-NPs and free 5-FU in CT-26 and HCT-116 cells but, were significantly low toxic against HEK-293 cells relative to free 5-FU. Furthermore, in vivo results showed no significant haemolytic effect, hepatic and renal injury, or weight loss. After treatment of various animal groups with formulations, notable tumour growth delay was observed following the order: Ap-FU-NPs < FU-NPs < 5-FU < PBS. The results suggest that AP-FU-NPs could be an effective and promising carrier for 5-FU delivery to the EpCAM overexpressing CRC cells.


Asunto(s)
Portadores de Fármacos , Nanopartículas , Ratones , Animales , Humanos , Molécula de Adhesión Celular Epitelial , Portadores de Fármacos/química , Células HEK293 , Fluorouracilo/farmacología , Fluorouracilo/uso terapéutico , Nanopartículas/química , Tamaño de la Partícula , Línea Celular Tumoral
17.
Fundam Clin Pharmacol ; 37(2): 340-346, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-36314138

RESUMEN

Allergic rhinitis as common airway disease has high prevalence in all peoples worldwide. In allergic diseases, Th2 cells release type 2 cytokines that support the inflammation in airways. All the drugs used for allergic rhinitis do not cure completely, and the choice of drugs according to cost and efficacy is very important in all groups of atopic patients. Therefore, in this study, the effect of commercial drugs on cytokine gene expression has been studied. Male Balb/c mice were divided into six groups. Allergic rhinitis was induced in five of the six groups with ovalbumin, and four of these five groups were treated with salbutamol, budesonide, theophylline, and montelukast. The fifth group was used as positive control group and the sixth group as negative control group. For the survey, RNA was extracted, cDNA was synthesized, and quantitative real-time PCR was done for 21 genes. The four drugs had different effects on mRNA expression of cytokines (IL-1b, 2, 4, 5, 7, 8, 9, 11, 12, 13, 17, 18, 22, 25, 31, 33, 37, IFN-γ, TNF-α, TGF-ß1, and eotaxin) in the allergic rhinitis groups. Salbutamol can be used during pregnancy and breastfeeding, but it has some side effects. Budesonide in the inhaled form is generally safe in pregnancy. Theophylline cannot control allergic attack in the long run. Montelukast is not useful in the treatment of acute allergic attacks. Immunomodulatory and anti-inflammatory effects of drugs in control of allergic rhinitis via Th2 cytokines can be new approaches in molecular medicine.


Asunto(s)
Citocinas , Rinitis Alérgica , Animales , Ratones , Masculino , Citocinas/genética , Citocinas/metabolismo , Teofilina/uso terapéutico , Rinitis Alérgica/tratamiento farmacológico , Budesonida/farmacología , Budesonida/uso terapéutico , Albuterol/uso terapéutico , Expresión Génica , Ovalbúmina , Ratones Endogámicos BALB C , Modelos Animales de Enfermedad
18.
ESC Heart Fail ; 10(2): 1418-1421, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36347818

RESUMEN

Complete heart block (CHB) is a serious health condition, and polyarteritis nodosa (PAN) is an important autoimmune disease. In the COVID-19 pandemy, several vaccines were developed for the COVID-19 disease that shown several side effects, and some of these complications are still unknown. This is the first report of CHB in a patient with history of PAN after COVID-19 vaccination. A 68-year-old man with a history of PAN referred to our hospital, complaining of presyncope episodes and dizziness after receiving a COVID-19 vaccine. Physical examination, laboratory tests, and transthoracic echocardiography were normal. In his electrocardiogram, a narrow QRS complex, AV dissociation, and junctional escape rhythm were seen. Coronary angiography showed a mild coronary artery disease. The patient, suffering from PAN for years, was hypothesized due to CHB a few days after COVID-19 vaccination. This case report suggests that COVID-19 vaccines may interrupt the conduction system of the heart and the fact that underlying PAN may predispose to CHB following COVID-19 vaccination. Further studies are needed to accurately assess a possible association between PAN, CHB, and COVID-19 vaccines.


Asunto(s)
Vacunas contra la COVID-19 , COVID-19 , Poliarteritis Nudosa , Anciano , Humanos , Masculino , COVID-19/complicaciones , Vacunas contra la COVID-19/efectos adversos , Bloqueo Cardíaco/etiología , Bloqueo Cardíaco/complicaciones , Poliarteritis Nudosa/complicaciones , Poliarteritis Nudosa/diagnóstico , Vacunación/efectos adversos
19.
Fundam Clin Pharmacol ; 37(1): 116-124, 2023 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-35959714

RESUMEN

Asthma is a common respiratory disease that has no definitive treatment at now. Immune response shifting from T helper (Th)1 to the Th2 is a main problem in asthma, and immunomodulation can help to control asthma. IL-35 and mesenchymal stem cells (MSCs) have regulatory effect on the immune system and may have the ability to control asthma pathology. After culturing MSCs, expression vector of IL-35 (pUNO1-mIL35elasti) was transduced to the MSCs, and then, asthmatic mice were treated with MSCs, MSCs-vector, MSCs-vector-IL-35, and no treatment. Airway hyperresponsiveness (AHR), levels of the cytokines, total and ovalbumin (OVA) specific immunoglobulin (Ig)E, LTB4, and LTC4 were measured. Lung tissue histopathology was also done. MSCs were successfully transduced by pUNO1-mIL35elasti vector, and IL-35 was produced in transduced cells. AHR, levels of the cytokines, IgEs, LTs, goblet cell hyperplasia, mucus secretion, peribronchial, and perivascular inflammation were controlled by MSCs therapy. In MSCs-IL-35 group, these controls were stronger than MSCs without IL-35 group. MSCs had strong effect on control of asthma. Transfected MSCs by expressing IL-35 gene could significantly better control allergic asthma symptoms than MSCs without IL-35. In the future, identification of the IL-35 mechanism of action would be useful to improve cytokine-cell based therapies.


Asunto(s)
Asma , Células Madre Mesenquimatosas , Animales , Ratones , Asma/terapia , Asma/genética , Pulmón/metabolismo , Citocinas/metabolismo , Inmunoglobulina E , Inmunidad , Interleucinas/genética , Células Madre Mesenquimatosas/metabolismo , Inmunomodulación , Ovalbúmina , Ratones Endogámicos BALB C , Líquido del Lavado Bronquioalveolar , Modelos Animales de Enfermedad
20.
Allergol Immunopathol (Madr) ; 50(6): 71-75, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36335448

RESUMEN

Allergic rhinitis and asthma are the main airway diseases with a higher prevalence. Eosinophilic inflammation, airway hyperresponsiveness, mucus hypersecretion, and reversible airflow obstruction are immunopathogenesis symptoms of rhinitis and asthma. Crotonic acid has bio-activity on the inflammation, and gluconic acid as chelator may protect crotonic acid activity in airway and together may control allergic rhinitis and asthma.Allergic rhinitis and asthma mice models were treated with crotonic and gluconic acids. The total IgE, histamine, IL-4, IL-5, and IL-13 levels were measured. In lung tissues, goblet cell hyperplasia, mucus hypersecretion, and inflammation were evaluated.The level of IL-5, goblet cell hyperplasia, and perivascular and peribronchial inflammation were controlled by crotonic acid in asthma and allergic rhinitis groups. But, total IgE, hista-mine, IL-4, and IL-13 levels, and mucus hypersecretion had no significant changes between treated and nontreated asthma and rhinitis groups.


Asunto(s)
Asma , Rinitis Alérgica , Rinitis , Ratones , Animales , Interleucina-13 , Interleucina-4 , Crotonatos/uso terapéutico , Amidas/uso terapéutico , Hiperplasia , Interleucina-5 , Asma/tratamiento farmacológico , Asma/patología , Rinitis Alérgica/tratamiento farmacológico , Inmunoglobulina E , Inflamación , Antiinflamatorios/uso terapéutico , Modelos Animales de Enfermedad , Citocinas , Líquido del Lavado Bronquioalveolar
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA