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1.
Pathol Res Pract ; 253: 155027, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38101159

RESUMO

Oral cancer (OC) is a widely observed neoplasm on a global scale. Over time, there has been an increase in both its fatality and incidence rates. Oral cancer metastasis is a complex process that involves a number of cellular mechanisms, including invasion, migration, proliferation, and escaping from malignant tissue through either lymphatic or vascular channels. MicroRNAs (miRNAs) are a crucial class of short non-coding RNAs recognized as significant modulators of diverse cellular processes and exert a pivotal influence on the carcinogenesis pathway, functioning either as tumor suppressors or as oncogenes. It has been shown that microRNAs (miRNAs) have a role in metastasis at several stages, including epithelial-mesenchymal transition, migration, invasion, and colonization. This regulation is achieved by targeting key genes involved in these pathways by miRNAs. This paper aims to give a contemporary analysis of OC, focusing on its molecular genetics. The current literature and emerging advancements in miRNA dysregulation in OC are thoroughly examined. This project would advance OC diagnosis, prognosis, therapy, and therapeutic implications.


Assuntos
MicroRNAs , Neoplasias Bucais , Humanos , MicroRNAs/metabolismo , Carcinogênese/genética , Neoplasias Bucais/diagnóstico , Neoplasias Bucais/genética , Oncogenes , Resistencia a Medicamentos Antineoplásicos/genética , Regulação Neoplásica da Expressão Gênica/genética , Transição Epitelial-Mesenquimal/genética
2.
Pathol Res Pract ; 250: 154817, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37713736

RESUMO

Malignant pleural mesothelioma (MPM) is a highly lethal form of pleural cancer characterized by a scarcity of effective therapeutic interventions, resulting in unfavorable prognoses for afflicted individuals. Besides, many patients experience substantial consequences from being diagnosed in advanced stages. The available diagnostic, prognostic, and therapeutic options for MPM are restricted in scope. MicroRNAs (miRNAs) are a subset of small, noncoding RNA molecules that exert significant regulatory influence over several cellular processes within cell biology. A wide range of miRNAs have atypical expression patterns in cancer, serving specific functions as either tumor suppressors or oncomiRs. This review aims to collate, epitomize, and analyze the latest scholarly investigations on miRNAs that are believed to be implicated in the dysregulation leading to MPM. miRNAs are also discussed concerning their potential clinical usefulness as diagnostic and prognostic biomarkers for MPM. The future holds promising prospects for enhancing diagnostic, prognostic, and therapeutic modalities for MPM, with miRNAs emerging as a potential trigger for such advancements.

3.
Expert Opin Ther Targets ; 26(5): 487-506, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-35549595

RESUMO

BACKGROUND: Asthma is a chronic inflammatory lung disease that universally affects millions of people. Despite numerous well-defined medications, asthma is poorly managed. This study aims to clarify the potential therapeutic effect of Dapagliflozin (DAPA) against lung inflammation, oxidative stress, and associated bronchospasm in OVA-sensitized rat asthma model. RESEARCH DESIGN AND METHODS: Twenty-five rats were allocated into (Control, Asthma, DEXA, DAPA, and DAPA+DEXA). All treatments were administered orally once a day for two weeks. The BALF levels of IL-17, TNFα, IL-1ß, and MCP-1 were determined to assess airway inflammation. For oxidative stress determination, BALF MDA levels and TAC were measured. The BALF S100A4 level and NO/sGC/cGMP pathway were detected. Lung histopathological findings and immunohistochemical investigation of eNOS and iNOS activities were recorded. RESULTS: DAPA significantly reduced (p < 0.001) airway inflammatory-oxidative markers (IL-17, TNFα, IL-1ß, MCP1, and MDA), but increased (p < 0.001) TAC, and mitigated bronchospasm by activating NO/sGC/cGMP and reducing S100A4 (p < 0.001). The biochemical and western blot studies were supported by histopathological and immunohistochemical investigations. CONCLUSIONS: DAPA presents a new prospective possibility for future asthma therapy due to its anti-inflammatory, anti-oxidant, and bronchodilator properties. DAPA has the property of reducing Dexamethasone (DEXA)-associated unfavorable effects during asthma treatment.


Assuntos
Asma , Espasmo Brônquico , Animais , Asma/tratamento farmacológico , Compostos Benzidrílicos , Líquido da Lavagem Broncoalveolar , Citocinas/metabolismo , Modelos Animais de Doenças , Glucosídeos , Humanos , Interleucina-17 , Camundongos , Camundongos Endogâmicos BALB C , Ovalbumina/metabolismo , Ovalbumina/farmacologia , Ovalbumina/uso terapêutico , Estresse Oxidativo , Estudos Prospectivos , Ratos , Fator de Necrose Tumoral alfa/metabolismo
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