Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 220
Filtrar
1.
Pathol Res Pract ; 260: 155443, 2024 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-38981348

RESUMEN

Glioblastoma (GB) remains a formidable challenge and requires new treatment strategies. The vital part of the Ubiquitin-proteasome system (UPS) in cellular regulation has positioned it as a potentially crucial target in GB treatment, given its dysregulation oncolines. The Ubiquitin-specific proteases (USPs) in the UPS system were considered due to the garden role in the cellular processes associated with oncolines and their vital function in the apoptotic process, cell cycle regulation, and autophagy. The article provides a comprehensive summary of the evidence base for targeting USPs as potential factors for neoplasm treatment. The review considers the participation of the UPS system in the development, resulting in the importance of p53, Rb, and NF-κB, and evaluates specific goals for therapeutic administration using midnight proteasomal inhibitors and small molecule antagonists of E1 and E2 enzymes. Despite the slowed rate of drug creation, recent therapeutic discoveries based on USP system dynamics hold promise for specialized therapies. The review concludes with an analysis of future wanderers and the feasible effects of targeting USPs on personalized GB therapies, which can improve patient hydration in this current and unattractive therapeutic landscape. The manuscript emphasizes the possibility of USP oncogene therapy as a promising alternative treatment line for GB. It stresses the direct creation of research on the medical effectiveness of the approach.

2.
PLoS One ; 19(7): e0305358, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39008492

RESUMEN

BACKGROUND: Huntington's disease (HD) is an extremely harmful autosomal inherited neurodegenerative disease. Motor dysfunction, mental disorder, and cognitive deficits are the characteristic features of this disease. The current study examined whether 6-shogaol has a protective effect against 3-Nitropropionic Acid (3-NPA)-induced HD in rats. METHODS: A total of thirty male Wistar rats received 6-shogaol (10 and 20 mg/kg, per oral) an hour before injection of 3-NPA (10 mg/kg i.p.) for 15 days. Behavioral tests were performed, including narrow beam walk, rotarod test, and grip strength test. Biochemical tests promoting oxidative stress were evaluated [superoxide dismutase (SOD), reduced glutathione (GSH), catalase (CAT) and malondialdehyde (MDA)], including changes to neurotransmitters serotonin (5-HT), dopamine (DA), norepinephrine (NE), homovanillic acid (HVA), (3,4-dihydroxyphenylacetic acid (DOPAC), γ-aminobutyric acid (GABA), and 5-hydroxy indole acetic acid (5-HIAA), nuclear factor kappa-B (NF-κB), tumor necrosis factor-α (TNF-α), interleukins-1ß (IL-1ß), IL-6, brain-derived neurotrophic factor (BDNF), and nuclear factor erythroid 2-related factor 2 (Nrf2). The 6-shogaol was docked to the active site of TNF-α (2AZ5), NF-κB (1SVC), BDNF) [1B8M], and Nrf2 [5FZN] proteins using AutoDock tools. RESULTS: The 6-shogaol group significantly improved behavioral activity over the 3-NPA-injected control rats. Moreover, 3-NPA-induced significantly altered neurotransmitters, biochemical and neuroinflammatory indices, which could efficiently be reversed by 6-shogaol. The 6-shogaol showed favorable negative binding energies at -9.271 (BDNF) kcal/mol. CONCLUSIONS: The present investigation demonstrated the neuroprotective effects of 6-shogaol in an experimental animal paradigm against 3-NPA-induced HD in rats. The suggested mechanism is supported by immunohistochemical analysis and western blots, although more research is necessary for definite confirmation.


Asunto(s)
Factor Neurotrófico Derivado del Encéfalo , Catecoles , Citocinas , Enfermedad de Huntington , Simulación del Acoplamiento Molecular , Factor 2 Relacionado con NF-E2 , FN-kappa B , Nitrocompuestos , Propionatos , Ratas Wistar , Animales , Enfermedad de Huntington/metabolismo , Enfermedad de Huntington/inducido químicamente , Enfermedad de Huntington/tratamiento farmacológico , Propionatos/farmacología , Masculino , Factor Neurotrófico Derivado del Encéfalo/metabolismo , Ratas , FN-kappa B/metabolismo , Factor 2 Relacionado con NF-E2/metabolismo , Catecoles/farmacología , Catecoles/química , Citocinas/metabolismo , Transducción de Señal/efectos de los fármacos , Estrés Oxidativo/efectos de los fármacos , Conducta Animal/efectos de los fármacos , Fármacos Neuroprotectores/farmacología
3.
Curr Med Chem ; 2024 Jun 27.
Artículo en Inglés | MEDLINE | ID: mdl-38939996

RESUMEN

BACKGROUND: Methamphetamine (MA) is well recognized as a psychostimulant that can cause neurotoxicity and neurodegeneration, which is associated with cognitive decline, has been confirmed experimentally. OBJECTIVE: The research aimed to investigate the neuroprotective properties of europinidin (Eu) in rodents affected by methamphetamine (MA)-induced cognitive impairments and hippocampal alterations. This was achieved by inhibiting lipid peroxidation and pro-inflammatory markers. METHODS: Rats were exposed to cognitive impairment produced by MA. The Morris water maze (MWM) is utilized for evaluating behavioral parameters. Tests were conducted on malondialdehyde (MDA), catalase (CAT), interleukins-1ß (IL-1ß), reduced glutathione (GSH), tumor necrosis factor-α (TNF-α), superoxide dismutase (SOD), and the expression of neurotransmitters (Norepinephrine [NE], dopamine [DA], glutamate, and gamma-aminobutyric acid [GABA]) as well as cAMP response element-binding protein (CREB), IL-6, brain-derived neurotrophic factor (BDNF), and caspase 3 proteins. An investigation was carried out using docking methodology to ascertain whether Eu interacts with relevant molecular targets. RESULTS: Significant decline in the transfer latency and there were significant changes in the amount of SOD, GSH, CAT, and MDA and alterations in levels of IL-6, IL-1ß, CREB, TNF-α, BDNF, and Caspase 3 proteins expression, as well as considerably alterations in level of neurotransmitters (NE, DA, Glutamate, and GABA) were observed in the Eu-treated rats compared to the MA-induced rats. Eu had a favorable affinity towards BDNF with docking scores of -9.486 kcal/mol. CONCLUSION: The experiment found that administering Eu to rats improved cognitive abilities by changing antioxidant enzymes, reducing cytokines, and modifying neurotransmitter levels, compared to rats in the control group treated with MA.

4.
Pharmaceuticals (Basel) ; 17(6)2024 May 28.
Artículo en Inglés | MEDLINE | ID: mdl-38931365

RESUMEN

BACKGROUND: Epilepsy is defined by an excessive level of activity in the neurons and coordinated bursts of electrical activity, resulting in the occurrence of seizure episodes. The precise cause of epileptogenesis remains uncertain; nevertheless, the etiology of epilepsy may involve neuroinflammation, oxidative stress, and malfunction of the neurotransmitter system. OBJECTIVE: The goal of this investigation was to assess barbaloin's protective properties with respect to pentylenetetrazol (PTZ)-)-induced cognitive deficits in rats via antioxidative, anti-inflammatory, and neurotransmitter-modulating effects. METHODS: Wistar rats were subjected to PTZ [40 mg/kg (i.p.)], which induced cognitive decline. Behavior assessment using a kindling score, open-field test (OFT), novel object recognition test (NORT), and assays for superoxide dismutase (SOD), reduced glutathione (GSH), catalase (CAT), malondialdehyde (MDA), acetylcholinesterase (AChE), caspase-3, nitric oxide (NO), interleukins-1ß (IL-1ß), tumor necrosis factor-α (TNF-α), IL-6, nuclear factor kappa-B (NF-κB), Bcl-2 and Bax, and neurotransmitter levels [GABA, DA, NE, and serotonin (5-HT)] were performed. RESULTS: The treatment of rats with barbaloin resulted in behavior improvement and significant changes in the levels of GSH, SOD, CAT, MDA, AChE, NO, IL-6, IL-1ß, TNF-α, NF-κB, caspase-3, Bcl-2, and Bax compared to the PTZ control group. Barbaloin treatment resulted in notable changes in neurotransmitter levels (GABA, NE, 5-HT, DA) compared to the PTZ group. CONCLUSIONS: The ongoing study has gathered evidence indicating that the injection of barbaloin has resulted in significant improvements in cognitive performance in rats. This is achieved by inhibiting oxidative stress, enhancing the activity of natural antioxidant enzymes, reducing cytokine levels, and increasing the levels of neurotransmitters in the brain. These results were detected in comparison to a PTZ control and can be attributed to the potent anti-inflammatory and antioxidant capabilities of barbaloin, which could be linked to its neuroprotective properties. Barbaloin may potentially increase cognitive decline and boost neuronal survival by altering the expression of Bax, caspase-3, Bcl-2.

5.
Brain Res ; 1841: 149089, 2024 Jun 14.
Artículo en Inglés | MEDLINE | ID: mdl-38880410

RESUMEN

Epilepsy is a prevalent neurological illness which is linked with high worldwide burdens. Oxidative stress (OS) is recognized to be among the contributors that trigger the advancement of epilepsy, affecting neuronal excitability and synaptic transmission. Various types of non-coding RNAs (ncRNAs) are known to serve vital functions in many disease mechanisms, including epilepsy. The current review sought to understand better the mechanisms through which these ncRNAs regulate epilepsy's OS-related pathways. We investigated the functions of microRNAs in controlling gene expression at the post-translatory stage and their involvement in OS and neuroinflammation. We also looked at the different regulatory roles of long ncRNAs, including molecular scaffolding, enhancer, and transcriptional activator, during OS. Circular RNAs and their capability to act as miRNA decoys and their consequential impact on epilepsy development were also explored. Our review aimed to improve the current understanding of novel therapies for epilepsy based on the role of ncRNAs in OS pathways. We also demonstrated the roles of ncRNAs in epilepsy treatment and diagnosis, explaining that these molecules play vital roles that could be used in therapy as biomarkers.

6.
EXCLI J ; 23: 570-599, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38887390

RESUMEN

Cancer poses intricate challenges to treatment due to its complexity and diversity. Ferroptosis and circular RNAs (circRNAs) are emerging as innovative therapeutic avenues amid the evolving landscape of cancer therapy. Extensive investigations into circRNAs reveal their diverse roles, ranging from molecular regulators to pivotal influencers of ferroptosis in cancer cell lines. The results underscore the significance of circRNAs in modulating molecular pathways that impact crucial aspects of cancer development, including cell survival, proliferation, and metastasis. A detailed analysis delineates these pathways, shedding light on the molecular mechanisms through which circRNAs influence ferroptosis. Building upon recent experimental findings, the study evaluates the therapeutic potential of targeting circRNAs to induce ferroptosis. By identifying specific circRNAs associated with the etiology of cancer, this analysis paves the way for the development of targeted therapeutics that exploit vulnerabilities in cancer cells. This review consolidates the existing understanding of ferroptosis and circRNAs, emphasizing their role in cancer therapy and providing impetus for ongoing research in this dynamic field. See also the graphical abstract(Fig. 1).

7.
Pathol Res Pract ; 258: 155329, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38692083

RESUMEN

Fibrosarcoma is a challenging cancer originating from fibrous tissues, marked by aggressive growth and limited treatment options. The discovery of non-coding RNAs (ncRNAs), including long non-coding RNAs (lncRNAs), microRNAs (miRNAs), and small interfering RNAs (siRNAs), has opened new pathways for understanding and treating this malignancy. These ncRNAs play crucial roles in gene regulation, cellular processes, and the tumor microenvironment. This review aims to explore the impact of ncRNAs on fibrosarcoma's pathogenesis, progression, and resistance to treatment, focusing on their mechanistic roles and therapeutic potential. A comprehensive review of literature from databases like PubMed and Google Scholar was conducted, focusing on the dysregulation of ncRNAs in fibrosarcoma, their contribution to tumor growth, metastasis, drug resistance, and their cellular pathway interactions. NcRNAs significantly influence fibrosarcoma, affecting cell proliferation, apoptosis, invasion, and angiogenesis. Their function as oncogenes or tumor suppressors makes them promising biomarkers and therapeutic targets. Understanding their interaction with the tumor microenvironment is essential for developing more effective treatments for fibrosarcoma. Targeting ncRNAs emerges as a promising strategy for fibrosarcoma therapy, offering hope to overcome the shortcomings of existing treatments. Further investigation is needed to clarify specific ncRNAs' roles in fibrosarcoma and to develop ncRNA-based therapies, highlighting the significance of ncRNAs in improving patient outcomes in this challenging cancer.


Asunto(s)
Fibrosarcoma , ARN no Traducido , Humanos , Fibrosarcoma/genética , Fibrosarcoma/patología , ARN no Traducido/genética , Regulación Neoplásica de la Expresión Génica , Oncogenes/genética , Microambiente Tumoral/genética , Genes Supresores de Tumor/fisiología , MicroARNs/genética , MicroARNs/metabolismo , Animales
8.
Pathol Res Pract ; 258: 155333, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38723325

RESUMEN

Long non-coding RNAs (lncRNAs) are a diverse class of RNA molecules that do not code for proteins but play critical roles in gene regulation. One such role involves the modulation of cell cycle progression and proliferation through interactions with cyclin-dependent kinases (CDKs), key regulators of cell division. Dysregulation of CDK activity is a hallmark of cancer, contributing to uncontrolled cell growth and tumor formation. These lncRNA-CDK interactions are part of a complex network of molecular mechanisms underlying cancer pathogenesis, involving various signaling pathways and regulatory circuits. Understanding the interplay between lncRNAs, CDKs, and cancer biology holds promise for developing novel therapeutic strategies targeting these molecular targets for more effective cancer treatment. Furthermore, targeting CDKs, key cell cycle progression and proliferation regulators, offers another avenue for disrupting cancer pathways and overcoming drug resistance. This can open new possibilities for individualized treatment plans and focused therapeutic interventions.


Asunto(s)
Quinasas Ciclina-Dependientes , Progresión de la Enfermedad , Neoplasias , ARN Largo no Codificante , Humanos , Neoplasias/genética , Neoplasias/patología , Neoplasias/enzimología , ARN Largo no Codificante/genética , ARN Largo no Codificante/metabolismo , Quinasas Ciclina-Dependientes/genética , Quinasas Ciclina-Dependientes/metabolismo , Regulación Neoplásica de la Expresión Génica , Animales , Transducción de Señal/genética , Proliferación Celular/genética , Ciclo Celular/genética , Ciclo Celular/fisiología
9.
Pathol Res Pract ; 258: 155303, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38728793

RESUMEN

Hepatocellular carcinoma (HCC) is among the primary reasons for fatalities caused by cancer globally, highlighting the need for comprehensive knowledge of its molecular aetiology to develop successful treatment approaches. The PI3K/Akt system is essential in the course of HCC, rendering it an intriguing candidate for treatment. Non-coding RNAs (ncRNAs), such as long ncRNAs (lncRNAs), microRNAs (miRNAs), and circular RNAs (circRNAs), are important mediators of the PI3K/Akt network in HCC. The article delves into the complex regulatory functions of ncRNAs in influencing the PI3K/Akt system in HCC. The study explores how lncRNAs, miRNAs, and circRNAs impact the expression as well as the function of the PI3K/Akt network, either supporting or preventing HCC growth. Additionally, treatment strategies focusing on ncRNAs in HCC are examined, such as antisense oligonucleotide-based methods, RNA interference, and small molecule inhibitor technologies. Emphasizing the necessity of ensuring safety and effectiveness in clinical settings, limitations, and future approaches in using ncRNAs as therapies for HCC are underlined. The present study offers useful insights into the complex regulation system of ncRNAs and the PI3K/Akt cascade in HCC, suggesting possible opportunities for developing innovative treatment approaches to address this lethal tumor.


Asunto(s)
Carcinoma Hepatocelular , Neoplasias Hepáticas , Fosfatidilinositol 3-Quinasas , Proteínas Proto-Oncogénicas c-akt , ARN no Traducido , Transducción de Señal , Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/patología , Humanos , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/patología , Proteínas Proto-Oncogénicas c-akt/metabolismo , Proteínas Proto-Oncogénicas c-akt/genética , Fosfatidilinositol 3-Quinasas/metabolismo , Fosfatidilinositol 3-Quinasas/genética , Transducción de Señal/genética , ARN no Traducido/genética , Regulación Neoplásica de la Expresión Génica/genética , ARN Circular/genética , ARN Circular/metabolismo , ARN Largo no Codificante/genética , ARN Largo no Codificante/metabolismo
10.
ACS Omega ; 9(18): 19741-19755, 2024 May 07.
Artículo en Inglés | MEDLINE | ID: mdl-38737049

RESUMEN

In recent years, the development of biomaterials from green organic sources with nontoxicity and hyposensitivity has been explored for a wide array of biotherapeutic applications. Polyphenolic compounds have unique structural features, and self-assembly by oxidative coupling allows molecular species to rearrange into complex biomaterial that can be used for multiple applications. Self-assembled polyphenolic structures, such as hollow spheres, can be designed to respond to various chemical and physical stimuli that can release therapeutic drugs smartly. The self-assembled metallic-phenol network (MPN) has been used for modulating interfacial properties and designing biomaterials, and there are several advantages and challenges associated with such biomaterials. This review comprehensively summarizes current challenges and prospects of self-assembled polyphenolic hollow spheres and MPN coatings and self-assembly for biomedical applications.

11.
CNS Neurosci Ther ; 30(5): e14763, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38790149

RESUMEN

BACKGROUND: Parkinson's disease (PD) is a degenerative neurological condition marked by the gradual loss of dopaminergic neurons in the substantia nigra pars compacta. The precise etiology of PD remains unclear, but emerging evidence suggests a significant role for disrupted autophagy-a crucial cellular process for maintaining protein and organelle integrity. METHODS: This review focuses on the role of non-coding RNAs (ncRNAs) in modulating autophagy in PD. We conducted a comprehensive review of recent studies to explore how ncRNAs influence autophagy and contribute to PD pathophysiology. Special attention was given to the examination of ncRNAs' regulatory impacts in various PD models and patient samples. RESULTS: Findings reveal that ncRNAs are pivotal in regulating key processes associated with PD progression, including autophagy, α-synuclein aggregation, mitochondrial dysfunction, and neuroinflammation. Dysregulation of specific ncRNAs appears to be closely linked to these pathogenic processes. CONCLUSION: ncRNAs hold significant therapeutic potential for addressing autophagy-related mechanisms in PD. The review highlights innovative therapeutic strategies targeting autophagy-related ncRNAs and discusses the challenges and prospective directions for developing ncRNA-based therapies in clinical practice. The insights from this study underline the importance of ncRNAs in the molecular landscape of PD and their potential in novel treatment approaches.


Asunto(s)
Autofagia , Enfermedad de Parkinson , ARN no Traducido , Humanos , Enfermedad de Parkinson/genética , Enfermedad de Parkinson/patología , Enfermedad de Parkinson/metabolismo , Autofagia/fisiología , Autofagia/genética , ARN no Traducido/genética , Animales
12.
Ageing Res Rev ; 98: 102327, 2024 07.
Artículo en Inglés | MEDLINE | ID: mdl-38734148

RESUMEN

Parkinson's Disease (PD) is a complex neurological illness that causes severe motor and non-motor symptoms due to a gradual loss of dopaminergic neurons in the substantia nigra. The aetiology of PD is influenced by a variety of genetic, environmental, and cellular variables. One important aspect of this pathophysiology is autophagy, a crucial cellular homeostasis process that breaks down and recycles cytoplasmic components. Recent advances in genomic technologies have unravelled a significant impact of ncRNAs on the regulation of autophagy pathways, thereby implicating their roles in PD onset and progression. They are members of a family of RNAs that include miRNAs, circRNA and lncRNAs that have been shown to play novel pleiotropic functions in the pathogenesis of PD by modulating the expression of genes linked to autophagic activities and dopaminergic neuron survival. This review aims to integrate the current genetic paradigms with the therapeutic prospect of autophagy-associated ncRNAs in PD. By synthesizing the findings of recent genetic studies, we underscore the importance of ncRNAs in the regulation of autophagy, how they are dysregulated in PD, and how they represent novel dimensions for therapeutic intervention. The therapeutic promise of targeting ncRNAs in PD is discussed, including the barriers that need to be overcome and future directions that must be embraced to funnel these ncRNA molecules for the treatment and management of PD.


Asunto(s)
Autofagia , Neuronas Dopaminérgicas , Enfermedad de Parkinson , ARN no Traducido , Enfermedad de Parkinson/genética , Enfermedad de Parkinson/metabolismo , Enfermedad de Parkinson/patología , Humanos , Autofagia/fisiología , Neuronas Dopaminérgicas/metabolismo , Neuronas Dopaminérgicas/patología , ARN no Traducido/genética , Animales
13.
Chem Biol Interact ; 394: 111002, 2024 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-38604395

RESUMEN

Lung inflammatory disorders are a major global health burden, impacting millions of people and raising rates of morbidity and death across many demographic groups. An industrial chemical and common environmental contaminant, formaldehyde (FA) presents serious health concerns to the respiratory system, including the onset and aggravation of lung inflammatory disorders. Epidemiological studies have shown significant associations between FA exposure levels and the incidence and severity of several respiratory diseases. FA causes inflammation in the respiratory tract via immunological activation, oxidative stress, and airway remodelling, aggravating pre-existing pulmonary inflammation and compromising lung function. Additionally, FA functions as a respiratory sensitizer, causing allergic responses and hypersensitivity pneumonitis in sensitive people. Understanding the complicated processes behind formaldehyde-induced lung inflammation is critical for directing targeted strategies aimed at minimizing environmental exposures and alleviating the burden of formaldehyde-related lung illnesses on global respiratory health. This abstract explores the intricate relationship between FA exposure and lung inflammatory diseases, including asthma, bronchitis, allergic inflammation, lung injury and pulmonary fibrosis.


Asunto(s)
Asma , Bronquitis , Formaldehído , Fibrosis Pulmonar , Formaldehído/toxicidad , Formaldehído/efectos adversos , Humanos , Asma/inducido químicamente , Fibrosis Pulmonar/inducido químicamente , Bronquitis/inducido químicamente , Animales , Exposición a Riesgos Ambientales/efectos adversos , Pulmón/efectos de los fármacos , Pulmón/patología , Neumonía/inducido químicamente , Estrés Oxidativo/efectos de los fármacos , Inflamación/inducido químicamente
14.
Life Sci ; 345: 122613, 2024 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-38582393

RESUMEN

Glioblastoma (GBM) is the most prevalent and deadly primary brain tumor type, with a discouragingly low survival rate and few effective treatments. An important function of the EGFR signalling pathway in the development of GBM is to affect tumor proliferation, persistence, and treatment resistance. Advances in molecular biology in the last several years have shown how important ncRNAs are for controlling a wide range of biological activities, including cancer progression and development. NcRNAs have become important post-transcriptional regulators of gene expression, and they may affect the EGFR pathway by either directly targeting EGFR or by modifying important transcription factors and downstream signalling molecules. The EGFR pathway is aberrantly activated in response to the dysregulation of certain ncRNAs, which has been linked to GBM carcinogenesis, treatment resistance, and unfavourable patient outcomes. We review the literature on miRNAs, circRNAs and lncRNAs that are implicated in the regulation of EGFR signalling in GBM, discussing their mechanisms of action, interactions with the signalling pathway, and implications for GBM therapy. Furthermore, we explore the potential of ncRNA-based strategies to overcome resistance to EGFR-targeted therapies, including the use of ncRNA mimics or inhibitors to modulate the activity of key regulators within the pathway.


Asunto(s)
Neoplasias Encefálicas , Glioblastoma , MicroARNs , Humanos , Receptores ErbB/metabolismo , Glioblastoma/tratamiento farmacológico , Glioblastoma/genética , Glioblastoma/metabolismo , Transducción de Señal , MicroARNs/metabolismo , ARN no Traducido/genética , Neoplasias Encefálicas/tratamiento farmacológico , Neoplasias Encefálicas/genética , Neoplasias Encefálicas/metabolismo
15.
Exp Gerontol ; 188: 112389, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38432575

RESUMEN

Aging-related diseases (ARDs) are a major global health concern, and the development of effective therapies is urgently needed. Kaempferol, a flavonoid found in several plants, has emerged as a promising candidate for ameliorating ARDs. This comprehensive review examines Kaempferol's chemical properties, safety profile, and pharmacokinetics, and highlights its potential therapeutic utility against ARDs. Kaempferol's therapeutic potential is underpinned by its distinctive chemical structure, which confers antioxidative and anti-inflammatory properties. Kaempferol counteracts reactive oxygen species (ROS) and modulates crucial cellular pathways, thereby combating oxidative stress and inflammation, hallmarks of ARDs. Kaempferol's low toxicity and wide safety margins, as demonstrated by preclinical and clinical studies, further substantiate its therapeutic potential. Compelling evidence supports Kaempferol's substantial potential in addressing ARDs through several mechanisms, notably anti-inflammatory, antioxidant, and anti-apoptotic actions. Kaempferol exhibits a versatile neuroprotective effect by modulating various proinflammatory signaling pathways, including NF-kB, p38MAPK, AKT, and the ß-catenin cascade. Additionally, it hinders the formation and aggregation of beta-amyloid protein and regulates brain-derived neurotrophic factors. In terms of its anticancer potential, kaempferol acts through diverse pathways, inducing apoptosis, arresting the cell cycle at the G2/M phase, suppressing epithelial-mesenchymal transition (EMT)-related markers, and affecting the phosphoinositide 3-kinase/protein kinase B signaling pathways. Subsequent studies should focus on refining dosage regimens, exploring innovative delivery systems, and conducting comprehensive clinical trials to translate these findings into effective therapeutic applications.


Asunto(s)
Quempferoles , Síndrome de Dificultad Respiratoria , Humanos , Quempferoles/farmacología , Quempferoles/uso terapéutico , Quempferoles/química , Fosfatidilinositol 3-Quinasas , Antioxidantes/farmacología , Antioxidantes/uso terapéutico , Antiinflamatorios/farmacología , Antiinflamatorios/uso terapéutico , Envejecimiento , Síndrome de Dificultad Respiratoria/tratamiento farmacológico
16.
Pathol Res Pract ; 256: 155224, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38452584

RESUMEN

Sepsis, a potentially fatal illness caused by an improper host response to infection, remains a serious problem in the world of healthcare. In recent years, the role of ncRNA has emerged as a pivotal aspect in the intricate landscape of cellular regulation. The exploration of ncRNA-mediated regulatory networks reveals their profound influence on key molecular pathways orchestrating pyroptotic responses during septic conditions. Through a comprehensive analysis of current literature, we navigate the diverse classes of ncRNAs, including miRNAs, lncRNAs, and circRNAs, elucidating their roles as both facilitators and inhibitors in the modulation of pyroptotic processes. Furthermore, we highlight the potential diagnostic and therapeutic implications of targeting these ncRNAs in the context of sepsis, aiming to cover the method for novel and effective strategies to mitigate the devastating consequences of septic pathogenesis. As we unravel the complexities of this regulatory axis, a deeper understanding of the intricate crosstalk between ncRNAs and pyroptosis emerges, offering promising avenues for advancing our approach to sepsis intervention. The intricate pathophysiology of sepsis is examined in this review, which explores the dynamic interaction between ncRNAs and pyroptosis, a highly regulated kind of programmed cell death.


Asunto(s)
MicroARNs , ARN Largo no Codificante , Sepsis , Humanos , Piroptosis/fisiología , ARN no Traducido/genética , ARN no Traducido/metabolismo , MicroARNs/genética , ARN Largo no Codificante/genética
17.
Pathol Res Pract ; 256: 155260, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38493726

RESUMEN

Lung cancer is a malignant tumor that develops in the lungs due to the uncontrolled growth of aberrant cells. Heavy metals, such as arsenic, cadmium, mercury, and lead, are metallic elements characterized by their high atomic weights and densities. Anthropogenic activities, such as industrial operations and pollution, have the potential to discharge heavy metals into the environment, hence presenting hazards to ecosystems and human well-being. The TGF-ß signalling pathways have a crucial function in controlling several cellular processes, with the ability to both prevent and promote tumor growth. TGF-ß regulates cellular responses by interacting in both canonical and non-canonical signalling pathways. Research employing both in vitro and in vivo models has shown that heavy metals may trigger TGF-ß signalling via complex molecular pathways. Experiments conducted in a controlled laboratory environment show that heavy metals like cadmium and arsenic may directly bind to TGF-ß receptors, leading to alterations in their structure that enable the receptor to be phosphorylated. Activation of this route sets in motion subsequent signalling cascades, most notably the canonical Smad pathway. The development of lung cancer has been linked to heavy metals, which are ubiquitous environmental pollutants. To grasp the underlying processes, it is necessary to comprehend their molecular effect on TGF-ß pathways. With a particular emphasis on its consequences for lung cancer, this abstract delves into the complex connection between exposure to heavy metals and the stimulation of TGF-ß signalling.


Asunto(s)
Arsénico , Contaminantes Ambientales , Neoplasias Pulmonares , Metales Pesados , Humanos , Cadmio/análisis , Arsénico/toxicidad , Arsénico/análisis , Contaminantes Ambientales/toxicidad , Contaminantes Ambientales/análisis , Ecosistema , Metales Pesados/toxicidad , Metales Pesados/metabolismo , Pulmón/metabolismo
18.
Pathol Res Pract ; 256: 155259, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38503004

RESUMEN

Circular RNAs (circRNAs) have been recognized as key components in the intricate regulatory network of the KRAS pathway across various cancers. The KRAS pathway, a central signalling cascade crucial in tumorigenesis, has gained substantial emphasis as a possible therapeutic target. CircRNAs, a subgroup of non-coding RNAs known for their closed circular arrangement, play diverse roles in gene regulation, contributing to the intricate landscape of cancer biology. This review consolidates existing knowledge on circRNAs within the framework of the KRAS pathway, emphasizing their multifaceted functions in cancer progression. Notable circRNAs, such as Circ_GLG1 and circITGA7, have been identified as pivotal regulators in colorectal cancer (CRC), influencing KRAS expression and the Ras signaling pathway. Aside from their significance in gene regulation, circRNAs contribute to immune evasion, apoptosis, and drug tolerance within KRAS-driven cancers, adding complexity to the intricate interplay. While our comprehension of circRNAs in the KRAS pathway is evolving, challenges such as the diverse landscape of KRAS mutant tumors and the necessity for synergistic combination therapies persist. Integrating cutting-edge technologies, including deep learning-based prediction methods, holds the potential for unveiling disease-associated circRNAs and identifying novel therapeutic targets. Sustained research efforts are crucial to comprehensively unravel the molecular mechanisms governing the intricate interplay between circRNAs and the KRAS pathway, offering insights that could potentially revolutionize cancer diagnostics and treatment strategies.


Asunto(s)
Neoplasias , ARN Circular , Humanos , ARN Circular/metabolismo , Proteínas Proto-Oncogénicas p21(ras)/genética , Proteínas Proto-Oncogénicas p21(ras)/metabolismo , Neoplasias/genética , Procesos Neoplásicos
19.
Pathol Res Pract ; 256: 155257, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38537524

RESUMEN

Circular RNAs (circRNAs) constitute a recently identified category of closed continuous loop RNA transcripts, serving as a subset of competing endogenous RNAs (ceRNAs) with the capacity to modulate genes by acting as microRNA sponges. In the context of cancer growth, numerous investigations have explored the potential functions of circRNAs, revealing their diverse functions either as oncogenes, promoting cancer progression, or as tumor suppressors, mitigating disease development. Among these, circRNA ADAM9 (Circ-ADAM9) is now recognized as an important player in a variety of mechanisms, both physiological and pathological, especially in cancer. The aberrant expression of Circ-ADAM9 has been observed across multiple human malignancies, implying a significant involvement in tumorigenesis. This comprehensive review aims to synthesize recent findings elucidating the function of Circ-ADAM9 in many malignancies. Additionally, the review explores the possibility of Circ-ADAM9 as a valuable biomarker, offering insights into its prognostic, diagnostic, and therapeutic implications. By summarizing the latest discoveries in this field, the review contributes to our understanding of the multifaceted contribution of Circ-ADAM9 in tumor biology and its potential applications in clinical settings.


Asunto(s)
MicroARNs , Neoplasias , Humanos , ARN Circular/genética , Neoplasias/genética , MicroARNs/genética , Carcinogénesis/genética , Transformación Celular Neoplásica , Proteínas de la Membrana/genética , Proteínas ADAM
20.
Pathol Res Pract ; 255: 155157, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38320440

RESUMEN

Lung cancer (LCs) is still a serious health problem globally, with many incidences attributed to environmental triggers such as Volatile Organic Compounds (VOCs). VOCs are a broad class of compounds that can be released via various sources, including industrial operations, automobile emissions, and indoor air pollution. VOC exposure has been linked to an elevated risk of lung cancer via multiple routes. These chemicals can be chemically converted into hazardous intermediate molecules, resulting in DNA damage and genetic alterations. VOCs can also cause oxidative stress, inflammation, and a breakdown in the cellular protective antioxidant framework, all of which contribute to the growth of lung cancer. Moreover, VOCs have been reported to alter critical biological reactions such as cell growth, apoptosis, and angiogenesis, leading to tumor development and metastasis. Epidemiological investigations have found a link between certain VOCs and a higher probability of LCs. Benzene, formaldehyde, and polycyclic aromatic hydrocarbons (PAHs) are some of the most well-researched VOCs, with comprehensive data confirming their cancer-causing potential. Nevertheless, the possible health concerns linked with many more VOCs and their combined use remain unknown, necessitating further research. Identifying the toxicological consequences of VOCs in LCs is critical for establishing focused preventative tactics and therapeutic strategies. Better legislation and monitoring mechanisms can limit VOC contamination in occupational and environmental contexts, possibly reducing the prevalence of LCs. Developing VOC exposure indicators and analyzing their associations with genetic susceptibility characteristics may also aid in early identification and targeted therapies.


Asunto(s)
Contaminantes Atmosféricos , Contaminación del Aire Interior , Neoplasias Pulmonares , Compuestos Orgánicos Volátiles , Humanos , Compuestos Orgánicos Volátiles/efectos adversos , Compuestos Orgánicos Volátiles/análisis , Contaminantes Atmosféricos/efectos adversos , Contaminantes Atmosféricos/análisis , Monitoreo del Ambiente/métodos , Contaminación del Aire Interior/efectos adversos , Contaminación del Aire Interior/análisis
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA