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1.
Artículo en Inglés | MEDLINE | ID: mdl-38597995

RESUMEN

The cell-surface receptor tyrosine kinase c-mesenchymal-epithelial transition factor (c-Met) is overexpressed in a wide range of solid tumors, making it an appropriate target antigen for the development of anticancer therapeutics. Various antitumor c-Met-targeting therapies (including monoclonal antibodies [mAbs] and tyrosine kinases) have been developed for the treatment of c-Met-overexpressing tumors, most of which have so far failed to enter the clinic because of their efficacy and complications. Antibody-drug conjugates (ADCs), a new emerging class of cancer therapeutic agents that harness the target specificity of mAbs to deliver highly potent small molecules to the tumor with the minimal damage to normal cells, could be an attractive therapeutic approach to circumvent these limitations in patients with c-Met-overexpressing tumors. Of great note, there are currently nine c-Met-targeting ADCs being examined in different phases of clinical studies as well as eight preclinical studies for treating various solid tumors. The purpose of this study is to present a broad overview of clinical- and preclinical-stage c-Met-targeting ADCs.

2.
Iran J Allergy Asthma Immunol ; 23(1): 1-28, 2024 Feb 11.
Artículo en Inglés | MEDLINE | ID: mdl-38485904

RESUMEN

Schizophrenia is one of the most severely debilitating mental disorders that affects 1.1% of the world's population. The exact cause of the disease is not known, but genetics, environmental factors (such as infectious agents, season and region of birth, exposure to viruses, low birth weight, advanced paternal age, and tobacco), and immune system dysfunction can all contribute to the development of schizophrenia. Recently, the role of the immune system in schizophrenia has received much attention. Both acquired and innate immune systems are involved in the pathogenesis of schizophrenia and facilitate the disease's progression. Almost all cells of the immune system including microglia, B cells, and T cells play an important role in the blood-brain barrier damage, inflammation, and in the progression of this disease. In schizophrenia, the integrity of the blood-brain barrier is reduced and then the immune cells are recruited into the endothelium following an increase in the expression of cell adhesion molecules. The entry of immune cells and cytokines leads to inflammation and antibody production in the brain. Accordingly, the results of this study strengthen the hypothesis that the innate and acquired immune systems are involved in the pathogenesis of schizophrenia.


Asunto(s)
Esquizofrenia , Humanos , Esquizofrenia/etiología , Encéfalo/patología , Citocinas , Linfocitos T , Inflamación
3.
Mol Genet Genomic Med ; 12(2): e2392, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38407572

RESUMEN

BACKGROUND: Recent studies have linked recurrent pregnancy loss (RPL) to abnormalities in the sperm genome, specifically microdeletions in the azoospermia factor (AZF) region. This study investigated the potential association between Y chromosome microdeletions in the AZF region and RPL in Iranian couples. METHODS: The research presents a case-control study of 240 men: 120 whose partners experienced recurrent miscarriage, and 120 who had successful pregnancies without history of miscarriage. The study used semen parameters, hormone analyses, and microdeletion analysis via multiplex PCR and the YChromStrip kit. Thus, the sequence-tagged site (STS) markers of AZFa (sY84, sY86), AZFb (sY127, sY134), and AZFc (sY254, sY255) regions were examined. RESULTS: The variations in semen parameters and sex hormone levels between cases and controls are suggest impaired testicular function in men whose partners had recurrent miscarriages (p < 0.05). Furthermore, the study revealed a negative correlation between sperm count and follicle-stimulating hormone (FSH) level, and a positive one between sperm motility and testosterone concentration. There were no microdeletions in the control group, while the RPL group showed 20 deletions in AZFb (sY134) (16.66%) and 10 deletions each in AZFb (sY127) (8.33%) and AZFc (sY254) (8.33%). CONCLUSION: Microdeletions in sY134 (AZFb) were significantly associated with RPL in Iranian men (p = 0.03). AZF microdeletion screening in couples with RPL can provide valuable information for ethnical genetic counseling and management of recurrent miscarriage. Further studies on larger populations or across various ethnic groups, conclusions and the inclusion of other factors like epigenetic changes explain the role of AZF microdeletions in RPL.


Asunto(s)
Aborto Habitual , Deleción Cromosómica , Infertilidad Masculina , Semen , Aberraciones Cromosómicas Sexuales , Trastornos de los Cromosomas Sexuales del Desarrollo Sexual , Femenino , Embarazo , Masculino , Humanos , Irán , Estudios de Casos y Controles , Motilidad Espermática , Aborto Habitual/genética , Cromosoma Y , Cromosomas Humanos Y
4.
Int J Biol Macromol ; 261(Pt 1): 129737, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38286373

RESUMEN

BACKGROUND: The combination of cells and biomaterials has become a powerful approach to regenerative medicine in recent years. Understanding the in-vitro interactions between cells and biomaterials is crucial for the success of regenerative medicine. AIM: In this study, we developed an AD-pectin/chitosan/nano-crystalline cellulose scaffold with nano-hydroxy-apatite (n-HAP) and alendronate (ALN). The second step was to evaluate its effect on the immunomodulatory properties and biological behaviors of seeded adipose-derived mesenchymal stem cells (ADSCs) for bone tissue repair. MATERIAL AND METHOD: After preparing and evaluating the characterization tests of the new combined n-HAP scaffold, we established different culture conditions to evaluate ADSC growth on this scaffold with or without ALN. The main assays were MTT assay, RT-PCR, and ELISA. RESULTS: Our data regarding characterization tests (including SEM, TGA, FTIR, gelation time, swelling ratio, rheology and degradation tests) of ALN-loaded n-HAP scaffold showed the proper stability and good mechanical status of the scaffold. ADSC proliferation and viability increased in the presence of the scaffold compared with other conditions. Moreover, our data demonstrated increased gene expression and protein levels of anti-inflammatory TGF-ß, HGF, and IDO cytokines in the presence of the ALN-loaded n-HAP scaffold, indicating the increased immunosuppressive activity of ADSCs in vitro. CONCLUSION: This study demonstrates the promising abilities of the ALN-loaded n-HAP scaffold to increase the proliferation, viability, and immunomodulatory capacity of ADSCs, elucidating new aspects of cell-material interactions that can be used for bone tissue regeneration/repair, and paving the path of future research in developing new approaches for MSC- based therapy.


Asunto(s)
Quitosano , Quitosano/química , Alendronato/farmacología , Alendronato/química , Apatitas , Hidrogeles/farmacología , Hidrogeles/química , Materiales Biocompatibles/farmacología , Materiales Biocompatibles/química , Andamios del Tejido/química , Ingeniería de Tejidos
5.
Sci Rep ; 13(1): 17265, 2023 10 12.
Artículo en Inglés | MEDLINE | ID: mdl-37828118

RESUMEN

Ovarian cancer (OC) incidence and mortality rates continue to escalate globally. Early detection of OC is challenging due to extensive metastases and the ambiguity of biomarkers in advanced High-Grade Primary Tumors (HGPTs). In the present study, we conducted an in-depth in silico analysis in OC cell lines using the Gene Expression Omnibus (GEO) microarray dataset with 53 HGPT and 10 normal samples. Differentially-Expressed Genes (DEGs) were also identified by GEO2r. A variety of analyses, including gene set enrichment analysis (GSEA), ChIP enrichment analysis (ChEA), eXpression2Kinases (X2K) and Human Protein Atlas (HPA), elucidated signaling pathways, transcription factors (TFs), kinases, and proteome, respectively. Protein-Protein Interaction (PPI) networks were generated using STRING and Cytoscape, in which co-expression and hub genes were pinpointed by the cytoHubba plug-in. Validity of DEG analysis was achieved via Gene Expression Profiling Interactive Analysis (GEPIA). Of note, KIAA0101, RAD51AP1, FAM83D, CEP55, PRC1, CKS2, CDCA5, NUSAP1, ECT2, and TRIP13 were found as top 10 hub genes; SIN3A, VDR, TCF7L2, NFYA, and FOXM1 were detected as predominant TFs in HGPTs; CEP55, PRC1, CKS2, CDCA5, and NUSAP1 were identified as potential biomarkers from hub gene clustering. Further analysis indicated hsa-miR-215-5p, hsa-miR-193b-3p, and hsa-miR-192-5p as key miRNAs targeting HGPT genes. Collectively, our findings spotlighted HGPT-associated genes, TFs, miRNAs, and pathways as prospective biomarkers, offering new avenues for OC diagnostic and therapeutic approaches.


Asunto(s)
Quinasas CDC2-CDC28 , MicroARNs , Neoplasias Ováricas , Humanos , Femenino , Multiómica , Biomarcadores de Tumor/genética , Biomarcadores de Tumor/metabolismo , Biología Computacional , MicroARNs/genética , MicroARNs/metabolismo , Perfilación de la Expresión Génica , Neoplasias Ováricas/diagnóstico , Neoplasias Ováricas/genética , Análisis de Secuencia por Matrices de Oligonucleótidos , Redes Reguladoras de Genes , Proteínas de Ciclo Celular/metabolismo , Quinasas CDC2-CDC28/genética , Proteínas Asociadas a Microtúbulos/metabolismo , ATPasas Asociadas con Actividades Celulares Diversas/metabolismo
6.
Curr Mol Med ; 2023 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-37533241

RESUMEN

INTRODUCTION: Aminoglycosides are among the first-choice antibiotics for routine clinical use. However, dose-limiting factors such as ototoxicity and nephrotoxicity are considered as serious complications of aminoglycosides. OBJECTIVE: In this systematic review, the main goal was to investigate the efficacy and incidence of nephrotoxicity and ototoxicity of once-daily dosing (ODD) and multiple daily dosing (MDD) regimens of aminoglycosides through available randomized controlled trials (RCTs). METHODS: We performed a literature-based research in relevant databases, including EMBASE, MEDLINE, and SCOPUS published between 1987 and 2023 using the keywords "aminoglycosides", "pharmacokinetics", "ODD", "MDD", "once daily", "multiple daily", "dosing regimen", "nephrotoxicity", "ototoxicity", "efficacy", "safety", and "toxicity". As so told, the results of this article were limited to papers available in English. Our initial search yielded 1124 results. After a review of the titles and abstracts of the articles, 803 articles were excluded from this study because they did not address the toxicity and effectiveness of ODD versus MDD of aminoglycosides. A total number of 21 studies on gentamicin, tobramycin, netilmicin, and amikacin met the inclusion criteria for the efficacy of aminoglycosides and their role in ototoxicity and nephrotoxicity were included in this review. Studies recruited different age classes, and the age of relevant cohorts varied from only a few days to more than 70 years. RESULTS: The most common clinical condition in the included studies was cystic fibrosis. CONCLUSION: In most studies, there were no significant differences between the two regimens regarding ototoxicity. In addition, the ODD regimens were safer than MDD concerning nephrotoxicity.

7.
Z Gesundh Wiss ; : 1-7, 2023 Apr 05.
Artículo en Inglés | MEDLINE | ID: mdl-37361263

RESUMEN

Background: In 2020, COVID-19 spread rapidly in Iran and other parts of the world. Some of the epidemiological aspects of this disease remain unknown; therefore, the present study was designed with the aim of determining the trend of incidence and mortality of COVID-19 from February 2020 to July 2021 in southern Iran. Methods: The present study was a cross-sectional analytical study that included all people who had COVID-19 in the period from February 2020 to July 2021 and whose information had been registered in the Infectious Diseases Center of Larestan city and MCMC unit. The study area included the cities of Larestan, Evaz, and Khonj, located in the south of Fars province in southern Iran. Results: Since the emergence of COVID-19 until July 2021, a total of 23,246 new cases of infection were reported in the southern region of Fars province. The average age of patients was 39.90±18.30 years and the range of ages varied from 1 to 103 years. The results of the Cochran-Armitage trend test showed that the trend of the disease in 2020 was completely upward. The first positive case of COVID-19 was recorded on February 27, 2020. The incidence curve in 2021 is sinusoidal, but in general, the results of the Cochran-Armitage trend test showed that the incidence of the disease increased significantly (P-trend < 0.001). Most cases were reported in July, April, and the end of March. Conclusion: In general, the incidence rate of COVID-19 has varied sinusoidally from 2020 to mid-2021. Although the incidence of the disease increased, the number of deaths has fallen. It seems that the increase in the number of diagnostic tests and the implementation of the national COVID-19 immunization program have been effective in changing the trend of the disease.

9.
Int Immunopharmacol ; 119: 110160, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-37080068

RESUMEN

BACKGROUND: Numerous studies have demonstrated the role of T helper (Th) 17 and T regulatory (reg) cells and pro-inflammatory and anti-inflammatory cytokines related to these cells in the pathogenesis of MS and its animal model, experimental autoimmune encephalomyelitis (EAE). STAT3 is one of the downstream signaling proteins of IL-23, IL-6, and IL-21 that are required for Th17 cells differentiation. STA-21 is a STAT3 inhibitor that functions by inhibiting STAT3 dimerization and binding to DNA impairing the expression of STAT3 target genes including, RORγt, IL-21 and IL-23R that are also required for Th17 cell differentiation. AIM: In this study, we evaluated the effect of STA-21 on EAE Model and investigated how this small molecule can change Th17/Treg balance leading to amelioration of disease. METHODS: After EAE induction and treatment with STA-21, its effects were assessed. Major assays were H&E and LFB staining, Flow cytometric analysis, Reverse transcription-PCR (RT-PCR), and ELISA. RESULTS: STA-21 ameliorated the EAE severity and decreased the EAE inflammation and demyelination. It also decreased STAT3 phosphorylation, the proportion of Th17 cells and the protein level of IL-17. In contrast, the balance of Tregs and the level of anti-inflammatory cytokine, IL-10 increased in STA-21-treated mice. Moreover, STA-21 significantly decreased the expression of Th17 related transcription factors, RORɣt and IL-23R while FOXP3 expression associated with Treg differentiation was increased. CONCLUSION: This study showed that STA-21 has therapeutic effects in EAE by reducing inflammation and shifting inflammatory immune responses to anti-inflammatory and can be used as a suitable treatment strategy for the treatment of EAE. The effectiveness of inhibiting or strengthening the functional cells of the immune system by these small molecules in terms of easy to access, simple construction and inexpensive expansion make them as a suitable tool for the treatment of inflammatory and autoimmune diseases.


Asunto(s)
Encefalomielitis Autoinmune Experimental , Animales , Ratones , Miembro 3 del Grupo F de la Subfamilia 1 de Receptores Nucleares/genética , Miembro 3 del Grupo F de la Subfamilia 1 de Receptores Nucleares/metabolismo , Linfocitos T Reguladores , Citocinas/metabolismo , Inflamación/tratamiento farmacológico , Antiinflamatorios/uso terapéutico , Células Th17 , Ratones Endogámicos C57BL
10.
Mol Ther ; 31(7): 1874-1903, 2023 07 05.
Artículo en Inglés | MEDLINE | ID: mdl-36950736

RESUMEN

Antibody-drug conjugates (ADCs) are a promising class of cancer biopharmaceuticals that exploit the specificity of a monoclonal antibody (mAb) to selectively deliver highly cytotoxic small molecules to targeted cancer cells, leading to an enhanced therapeutic index through increased antitumor activity and decreased off-target toxicity. ADCs hold great promise for the treatment of patients with human epidermal growth factor receptor 2 (HER2)-positive breast cancer after the approval and tremendous success of trastuzumab emtansine and trastuzumab deruxtecan, representing a turning point in both HER2-positive breast cancer treatment and ADC technology. Additionally and importantly, a total of 29 ADC candidates are now being investigated in different stages of clinical development for the treatment of HER2-positive breast cancer. The purpose of this review is to provide an insight into the ADC field in cancer treatment and present a comprehensive overview of ADCs approved or under clinical investigation for the treatment of HER2-positive breast cancer.


Asunto(s)
Antineoplásicos , Neoplasias de la Mama , Inmunoconjugados , Humanos , Femenino , Neoplasias de la Mama/tratamiento farmacológico , Trastuzumab/farmacología , Trastuzumab/uso terapéutico , Antineoplásicos/uso terapéutico , Ado-Trastuzumab Emtansina/uso terapéutico , Receptor ErbB-2/metabolismo , Anticuerpos Monoclonales/uso terapéutico , Inmunoconjugados/uso terapéutico
11.
Exp Biol Med (Maywood) ; 248(8): 665-676, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36775873

RESUMEN

Despite the extensive body of research, understanding the exact molecular mechanisms governing inflammatory bowel diseases (IBDs) still demands further investigation. Transforming growth factor-ß1 (TGF-ß1) signaling possesses a multifacial effect on a broad range of context-dependent cellular responses. However, long-term TGF-ß1 activity may trigger epithelial-mesenchymal transition (EMT), followed by fibrosis. This study aimed to determine the role of epithelial TGF-ß1 signaling in inflammatory bowel disease (IBD) pathogenesis. The expression of TGF-ß1 signaling components and EMT-related and epithelial tight junction markers was examined in IBD patients (n = 60) as well as LPS-induced Caco-2/RAW264.7 co-culture model using quantitative real-time polymerase chain reaction (qRT-PCR), Western blotting, and immunofluorescence staining. Furthermore, the effect of A83-01, as a TGF-ß receptor I (TßRI) inhibitor, on the inflamed epithelial cells was evaluated in vitro. To evaluate the cytotoxic effects of the TßRI inhibitor, a cell viability assay was performed by the MTS method. Considering the activation of canonical and non-canonical TGF-ß1 signaling pathways in IBD patients, expression results indicated that administering A83-01 in inflamed Caco-2 cells substantially blocked the expression level of TGF-ß1, SMAD4, and PI3K and the phosphorylation of p-SMAD2/3, p-AKT, and p-RPS6 as well as prevented downregulation of LncGAS5 and LncCDKN2B. Further analysis revealed that the inhibition of TGF-ß1 signaling in inflamed epithelial cells by the small molecule could suppress the EMT-related markers as well as improve the expression of epithelial adherens and tight junctions. Collectively, these findings indicated that the inhibition of the TGF-ß1 signaling could suppress the induction of EMT in inflamed epithelial cells as well as exert a protective effect on preserving tight junction integrity. There is a pressing need to determine the exact cellular mechanisms by which TGF-ß1 exerts its effect on IBD pathogenesis.


Asunto(s)
Enfermedades Inflamatorias del Intestino , Factor de Crecimiento Transformador beta1 , Humanos , Factor de Crecimiento Transformador beta1/metabolismo , Transición Epitelial-Mesenquimal/fisiología , Células CACO-2 , Células Epiteliales/metabolismo , Receptores de Factores de Crecimiento Transformadores beta/metabolismo
12.
Life Sci ; 318: 121459, 2023 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-36720453

RESUMEN

Gastric cancer (GC) is a severe malignancy, accounting for the third most common cancer death worldwide. Despite the development of chemo-radiation therapy, there has not been sufficient survival advantage in patients with GC who were treated by these methods. GC immunogenicity is hampered by a highly immunosuppressive microenvironment; therefore, further understanding of the molecular biology of GC is the potential to achieve new therapeutic strategies in GC therapy, including specific immunotherapy. Current immunotherapies are mainly based on cytokines, immune checkpoints, monoclonal antibodies (mAb), bispecific antibodies (BisAbs), antibody-drug conjugates (ADCs), and chimeric antigen receptor (CAR). Immunotherapy has made significant progress in the treatment of GC, so that studies show that nivolumab as a programmed death 1 (PD1) inhibitor has proper safety and effectiveness as a third-line treatment for GC patients. Multiple monoclonal antibodies like ramucirumab and claudiximab were effective in treating GC patients, especially in combination with other treatments. Despite the challenges of CAR therapy in solid tumors, CAR therapy targets various GC cells targets; among them, intercellular adhesion molecule (ICAM)-1 CAR-T cell and CLDN18.2 CAR-T cell have shown promising results. Although responses to all these treatments are encouraging and in some cases, durable, these successes are not seen in all treated patients. The present review represents the development of various immunotherapies especially CAR-T cell therapy, its current use, clinical data in GC, and their limitations.


Asunto(s)
Receptores Quiméricos de Antígenos , Neoplasias Gástricas , Humanos , Neoplasias Gástricas/tratamiento farmacológico , Inmunoterapia/métodos , Inmunoterapia Adoptiva/métodos , Anticuerpos Monoclonales/uso terapéutico , Linfocitos T , Microambiente Tumoral , Claudinas
13.
Front Oncol ; 13: 1277772, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38328436

RESUMEN

Cervical cancer (CC) is a major global health problem and leading cause of cancer deaths among women worldwide. Early detection through screening programs has reduced mortality; however, screening compliance remains low. Identifying non-invasive biomarkers through proteomics for diagnosis and monitoring response to treatment could improve patient outcomes. Here we review recent proteomics studies which have uncovered biomarkers and potential drug targets for CC. Additionally, we explore into the role of cervical cancer stem cells and their potential implications in driving CC progression and therapy resistance. Although challenges remain, proteomics has the potential to revolutionize the field of cervical cancer research and improve patient outcomes.

14.
Int Arch Allergy Immunol ; 183(10): 1137-1145, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35878588

RESUMEN

INTRODUCTION: Atherosclerosis is a chronic inflammatory process maintained during all stages of the disease by several proinflammatory mediators, such as cytokines and chemokines. Interleukin (IL)-36 cytokines are proinflammatory and have an essential role in innate and adaptive immunity, but the role of IL-36 has not been determined in coronary artery disease (CAD). This study aimed to measure the serum levels of IL-36 in patients with CAD and their association with the serum levels of tumor necrosis factor (TNF)-α, IL-6, and IL-32 and also investigate their correlation with the serum levels of malondialdehyde (MDA) and ferric reducing antioxidant power (FRAP). METHODS: A total of 168 subjects (84 CAD and 84 control subjects) were examined in this research. The total serum levels of IL-36 were measured using the enzyme-linked immunosorbent assay (ELISA). Also, some oxidative stress parameters were evaluated by FRAP and MDA assays in the serum. RESULTS: The serum levels of IL-36 and MDA were significantly higher, and FRAP was significantly lower in the CAD group compared to the controls. Furthermore, the serum levels of IL-36, MDA, and FRAP significantly correlated with the CAD group's cardiac arterial stenosis. Also, the serum levels of IL-36 had a positive and significant correlation with the serum levels of TNF-α, IL-6, IL-32, and biochemical parameters in the CAD group. CONCLUSION: Higher serum levels of IL-36 and its association with the serum levels of TNF-α, IL-32, and IL-6 may play a key role in the pathogenesis of CAD, leading to an increased risk of clogged arteries and oxidative stress.


Asunto(s)
Enfermedad de la Arteria Coronaria , Factor de Necrosis Tumoral alfa , Humanos , Antioxidantes/metabolismo , Citocinas , Interleucina-6 , Malondialdehído , Estrés Oxidativo , Interleucinas/sangre
15.
Toxicol In Vitro ; 82: 105382, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-35569705

RESUMEN

Inflammatory bowel disease (IBD) is a debilitating and incurable inflammatory disorder. Despite its increasing prevalence, the underlying pathogenic mechanisms of IBD have not been fully clarified. In addition to the regulatory role of Sonic Hedgehog (SHH) signaling in the maintenance of gut homeostasis, its involvement in development of inflammatory disorders and organ fibrosis has also been reported. Here, we investigated the role of SHH signaling in IBD and examined the molecular mechanisms targeted by the SHH signaling blockade. In addition to increased inflammatory responses and induced Epithelial-mesenchymal transition (EMT) process, SHH signaling activity also increased in active lesions of IBD patients. These findings were similar to what was observed in the LPS-induced Caco2-RAW264.7 co-culture model. Inhibition of SHH signaling in the intestinal epithelial cells using SHH inhibitors influenced inflammatory responses through decreased expression of inflammatory cytokines. Moreover, treatment of differentiated Caco2 cells with SHH signaling inhibitors prevented the overexpression of EMT markers and downregulation of epithelial adherens and tight junctions in inflammatory conditions. This study demonstrated that the inhibition of SHH signaling by small molecules might have therapeutic benefit in IBD, and provided compelling experimental evidence that SHH signaling inhibitors can impose anti-inflammatory effects in intestinal epithelial cells while preserving their epithelial characteristics by restricting the induction of EMT.


Asunto(s)
Transición Epitelial-Mesenquimal , Enfermedades Inflamatorias del Intestino , Células CACO-2 , Proteínas Hedgehog/metabolismo , Humanos , Inflamación , Enfermedades Inflamatorias del Intestino/tratamiento farmacológico , Enfermedades Inflamatorias del Intestino/patología
16.
Viral Immunol ; 35(3): 244-253, 2022 04.
Artículo en Inglés | MEDLINE | ID: mdl-35467429

RESUMEN

Declined immune response is the main cause of decreased potency of the influenza vaccine in the elderly, regardless of virus mutations. Herein, we hypothesized that the addition of α-tocopherol to the influenza vaccine formulation might increase vaccine potency and efficacy. Hemagglutinin of the H1N1 virus was formulated in Alum and α-tocopherol, and then aged (16-20-month-old) and young (6-8-week-old) mice were immunized subcutaneously two times with 2-week intervals with 5 µg of different vaccine formulations. Two weeks after the final boosting, IFN-γ and IL-4 cytokines were assessed by using ELISA. Humoral immune responses were assessed by hemagglutination inhibition (HI). In addition, vaccine efficacy was determined by intranasal viral challenge of mice using mouse-adapted H1N1 virus. Our results showed that the new vaccine formulation improved IFN-γ and IL-4 responses in the experimental mice. However, the increase was evident mainly in the aged group and, to some extent, in the young group. Results from the HI assay showed that α-tocopherol in the vaccine formulation could increase HI activity in both young and aged mice. Furthermore, α-tocopherol, as an adjuvant, increased the protectivity of the influenza vaccine in both aged and young groups through the decreased lung viral load and increased survival rate of the experimental mice. In conclusion, it seems that α-tocopherol can not only be used as an appropriate adjuvant for aged people, but also empower old and worn out cells to increase the effectiveness of the vaccine in the elderly.


Asunto(s)
Subtipo H1N1 del Virus de la Influenza A , Vacunas contra la Influenza , Gripe Humana , Adyuvantes Inmunológicos , Anciano , Animales , Humanos , Inmunidad Humoral , Gripe Humana/prevención & control , Interleucina-4 , Ratones , Ratones Endogámicos BALB C , alfa-Tocoferol
17.
Mol Biol Rep ; 49(6): 4943-4957, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35235159

RESUMEN

The world is grappling with an unprecedented public health crisis COVID-19 pandemic caused by the novel coronavirus SARS-CoV-2. Due to the high transmission/mortality rates and socioeconomic impacts of the COVID-19, its control is crucial. In the absence of specific treatment, vaccines represent the most efficient way to control and stop the pandemic. Many companies around the world are currently making efforts to develop the vaccine to combat COVID-19. This review outlines key strategies for generating SARS-CoV-2 vaccine candidates, along with the mechanism of action, advantages, and potential limitations of each vaccine. The use of nanomaterials and nanotechnology for COVID-19 vaccines development will also be discussed.


Asunto(s)
Vacunas contra la COVID-19 , COVID-19 , COVID-19/prevención & control , Humanos , Pandemias/prevención & control , SARS-CoV-2
18.
Res Sports Med ; 30(1): 80-91, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-33843376

RESUMEN

The purpose of this study was to investigate the effects of a 12 week exercise training on the immune system of kidney transplant recipients. 23 kidney transplant recipients were randomly divided into two groups including control (n = 10) and training (n =13) groups. The training groups participated in the training for 10 weeks (three days a week; each day 60-90 minutes). The control group performed no regular exercise during this time. The blood samples were taken before and after 12 weeks. ELISA and Real-time PCR were used to evaluate cytokine profiles, including TNF-a, IL-6, IL-4, IL-31 and IL-35 as well as T-bet, GATA-3, RORYt and FOXP3, respectively. Finally, the data were analyzed, using paired T-test. ELISA results showed decreased levels of TNF- α, increased levels of IL-6 and no significant differences in the IL-35, IL-31 and IL-4 levels in the training group in comparison to the control group. Gene expression profiles showed significantly increased expression of T-bet and no changes in the GATA-3, RORYt and FOXP3 levels. According to these results, a moderate exercise including aerobic and resistance training could inhibit inflammatory cytokines and have beneficial effects on the immune system, but this issue needs further research.


Asunto(s)
Trasplante de Riñón , Entrenamiento de Fuerza , Ejercicio Físico , Humanos , Factores Inmunológicos
19.
Transpl Immunol ; 70: 101516, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-34922023

RESUMEN

BACKGROUND: Systemic lupus erythematosus (SLE) is an inflammatory rheumatic disease characterized by production of autoantibodies and organ damage. Elevated levels of cytokines have been reported in SLE patients. Physical activity could be considered one of the factors that affect the immune system status and function. The aim of the present study was to evaluate the effects of an 8-week supervised aerobic and anaerobic training program on the immune system of SLE patients through evaluation of serum cytokine levels. METHODS: This cross-sectional study included 24 SLE patients selected between September 2015 and March 2016. The patients were randomly divided into two groups, including exercise (n = 14) and control (n = 10) groups. The exercise group participated in an 8-week combined supervised exercise training program consisting of three times per week in 60-min exercise sessions. After collection of whole peripheral blood, peripheral blood mononuclear cells (PBMCs) were isolated from the blood samples. Following RNA extraction and cDNA synthesis, the expression levels of IFN-γ, TNF-α, IL-6, IL-2, IL-4, IL-5, IL-9, IL-10, IL-13, IL-17A, IL-17F, IL-21, and IL-22 were determined using in-house SYBER Green-based real-time polymerase chain reaction (PCR). Lastly, the data obtained were analyzed using t-test. RESULTS: The mean and standard deviation of age were 29.00 ± 3.19 and 21.50 ± 5.52 in the intervention and control groups, respectively. No significant differences were found among the mean serum levels of IFN-γ, IL6, IL-9, IL-17A, IL-17F and IL-21 among SLE patients in the intervention and control groups. The mean serum levels of TNF-α, IL2, IL-4, and IL-5 decreased significantly in the intervention as compared with the control group. The mean serum levels of IL-10, IL-13 and IL-22 significantly increased in the control group after eight weeks, as compared with the intervention group. CONCLUSIONS: Our findings indicated that the 8-week supervised aerobic and anaerobic training program could result in decreased inflammatory cytokines.


Asunto(s)
Citocinas , Ejercicio Físico , Lupus Eritematoso Sistémico , Anaerobiosis , Estudios Transversales , Citocinas/metabolismo , Humanos , Leucocitos Mononucleares/metabolismo , Lupus Eritematoso Sistémico/terapia
20.
Biotechnol Bioeng ; 118(10): 3691-3705, 2021 10.
Artículo en Inglés | MEDLINE | ID: mdl-34241908

RESUMEN

Adoptive cell immunotherapy with chimeric antigen receptor T (CAR-T) cell has brought a revolutionary means of treatment for aggressive diseases such as hematologic malignancies and solid tumors. Over the last decade, the United States Food and Drug Administration (FDA) approved five types of CAR-T cell therapies for hematologic malignancies, including Idecabtagene vicleucel (Abecma), Lisocabtagene maraleucel (Breyanzi), Brexucabtagene autoleucel (Tecartus), Tisagenlecleucel (Kymriah), and Axicabtagene ciloleucel (Yescarta). Despite outstanding results gained from different clinical trials, CAR-T cell therapy is not free from side effects and toxicities, and needs careful investigations and improvements. Gene-editing technology, clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9 (Cas9) system, has emerged as a promising tool to address some of the CAR-T therapy hurdles. Using CRISPR/Cas9 technology, CAR expression as well as other cellular pathways can be modified in various ways to enhance CAR-T cells antitumor function and persistence in immunosuppressive tumor microenvironment. CRISPR/Cas9 technology can also be used to decrease CAR-T cell toxicities and side effects. Hereby, we discussed the practical challenges and hurdles related to the accuracy, efficiency, efficacy, safety, and delivery of CRISPR/Cas9 technology to the genetically engineered-T cells. Combining of these two state-of-the-art technologies, CRISPR/Cas9 and CAR-T cells, the field of oncology has an extraordinary opportunity to enter a new era of immunotherapy, which offers novel therapeutic options for different types of tumors.


Asunto(s)
Traslado Adoptivo , Sistemas CRISPR-Cas , Neoplasias Hematológicas/terapia , Receptores Quiméricos de Antígenos , Neoplasias Hematológicas/genética , Humanos , Receptores Quiméricos de Antígenos/genética , Receptores Quiméricos de Antígenos/uso terapéutico
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