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1.
Biomaterials ; 313: 122766, 2025 Feb.
Article de Anglais | MEDLINE | ID: mdl-39180916

RÉSUMÉ

The immune resistance of tumor microenvironment (TME) causes immune checkpoint blockade therapy inefficient to hepatocellular carcinoma (HCC). Emerging strategies of using chemotherapy regimens to reverse the immune resistance provide the promise for promoting the efficiency of immune checkpoint inhibitors. The induction of cyclic guanosine monophosphate-adenosine monophosphate synthase (cGAS)-stimulator of interferon genes (STING) in tumor cells evokes the adaptive immunity and remodels the immunosuppressive TME. In this study, we report that mitoxantrone (MIT, a chemotherapeutic drug) activates the cGAS-STING signaling pathway of HCC cells. We provide an approach to augment the efficacy of MIT using a signal transducer and activator of transcription 3 (STAT3) inhibitor called napabucasin (NAP). We prepare an aminoethyl anisamide (AEAA)-targeted polyethylene glycol (PEG)-modified poly (lactic-co-glycolic acid) (PLGA)-based nanocarrier for co-delivery of MIT and NAP. The resultant co-nanoformulation can elicit the cGAS-STING-based immune responses to reshape the immunoresistant TME in the mice orthotopically grafted with HCC. Consequently, the resultant co-nanoformulation can promote anti-PD-1 antibody for suppressing HCC development, generating long-term survival, and inhibiting tumor recurrence. This study reveals the potential of MIT to activate the cGAS-STING signaling pathway, and confirms the feasibility of nano co-delivery for MIT and NAP on achieving HCC chemo-immunotherapy.


Sujet(s)
Carcinome hépatocellulaire , Immunothérapie , Tumeurs du foie , Protéines membranaires , Mitoxantrone , Nucleotidyltransferases , Facteur de transcription STAT-3 , Mitoxantrone/pharmacologie , Mitoxantrone/usage thérapeutique , Carcinome hépatocellulaire/traitement médicamenteux , Carcinome hépatocellulaire/anatomopathologie , Animaux , Tumeurs du foie/traitement médicamenteux , Tumeurs du foie/anatomopathologie , Humains , Nucleotidyltransferases/métabolisme , Protéines membranaires/métabolisme , Facteur de transcription STAT-3/métabolisme , Souris , Immunothérapie/méthodes , Lignée cellulaire tumorale , Antinéoplasiques/pharmacologie , Antinéoplasiques/usage thérapeutique , Transduction du signal/effets des médicaments et des substances chimiques , Microenvironnement tumoral/effets des médicaments et des substances chimiques , Benzofuranes , Naphtoquinones
2.
Colloids Surf B Biointerfaces ; 245: 114305, 2024 Oct 08.
Article de Anglais | MEDLINE | ID: mdl-39383581

RÉSUMÉ

Forsythin, currently in phase II clinical trials in China for the treatment of the common cold and influenza, faces challenges in achieving adequate lung drug exposure due to its limited dissolution and permeability, thereby restricting its therapeutic efficacy. The objective of this work was to formulate a forsythin-phospholipid complex (FPC) to enhance its dissolution properties and lung affinity with a particular view to improving pulmonary drug exposure and anti-inflammatory response. The results revealed that forsythin reacted with dipalmitoyl-phosphatidylcholine to form a stable, nanosized FPC suspension. This formulation significantly improved the in vitro drug's dissolution, cellular uptake, and lung affinity compared to its uncomplexed form. Intratracheal administration of FPC in a mouse model of acute lung injury induced by lipopolysaccharide (LPS) resulted in a substantial increase in drug exposure to lung tissues (39.6-fold) and immune cells in the epithelial lining fluid (198-fold) compared to intraperitoneal injection. In addition, FPC instillation exhibited superior local anti-inflammatory effects, leading to improved survival rates among mice with LPS-induced acute respiratory distress syndrome, outperforming both instilled forsythin and injected FPC. Overall, this work demonstrated the potential of phospholipid complexes as a viable option for developing inhalation products for drugs with limited solubility and permeability properties.

3.
Bioorg Chem ; 153: 107864, 2024 Oct 02.
Article de Anglais | MEDLINE | ID: mdl-39383808

RÉSUMÉ

Garciyunnanol A (1), an unprecedented 1,2-seco-bicyclic polyprenylated acylphloroglucinol (BPAP) possessing a unique 6/6/6 tricyclic core, was characterized from Garcinia yunnanensis together with 16 BPAPs, including eight new compounds (garciyunnanols B-I, 2-9). Biogenetically, the bicyclo[3.3.1]nonane-2,4,9-trione moiety of 12 reconstructed the bicyclic δ-lactone core of 2 through Norrish type Ⅰ cleavage and cyclization, followed by a cyclization of two side chains to form an intriguing 6/6/6 tricyclic core of 1. Their structures were elucidated through analysis of spectroscopic data, calculation and comparison of ECD spectra. Bioactivity evaluation manifested that compounds 1, 2, 5, 6 and 14 demonstrated superior inhibition of NO production compared to the positive control dexamethasone. Notably, compound 5 exhibited a dose-dependent inhibitory effect on NO production, with an IC50 value of 0.25 ± 0.87 µM. Furthermore, experiments involving ELISA, Western blotting, and immunofluorescence staining revealed that 5 effectively reduced the secretion of interleukin-1ß in LPS plus nigericin-stimulated THP-1 macrophages by inhibiting the activation of the NLRP3 inflammasome.

4.
J Prosthodont Res ; 2024 Sep 03.
Article de Anglais | MEDLINE | ID: mdl-39231697

RÉSUMÉ

PURPOSE: To compare the effectiveness of keratinized mucosa (KM) augmentation with different techniques for the treatment of dental implants based on risk assessment. METHODS: Thirty-nine patients who underwent KM augmentation at implant sites in the posterior mandible were included. Three techniques were used based on anatomy-guided risk assessment: an apically positioned flap (APF) alone, an APF plus a free gingival graft (APF plus FGG), and an APF plus a collagen matrix (APF plus CM). Clinically effective KM augmentation was defined as remaining KM ≥ 2 mm after the intervention. The effective rate, implant/prosthesis survival rates, and bone/soft tissue parameters were analyzed. The correlation between local anatomical characteristics and different techniques was also determined. The associations between the effectiveness of KM augmentation and related factors were analyzed using a linear model. RESULTS: Overall, 74 sites received KM augmentation in the posterior mandible, for an effective rate of 94.6% at the 1-year follow-up and 93.2% at the 5-year follow-up. The KM width in the APF plus FGG group (3.85 ± 1.22 mm) was greater than that in the APF alone (3.05 ± 0.90 mm) (P = 0.016) and APF plus CM (3.21 ± 1.17 mm) groups (P = 0.038) at 5 years post-surgery. There was no significant difference in the effective/ineffective outcomes at the 1-year or 5-year follow-up among the three groups. CONCLUSIONS: Comparable effective outcomes were achieved with three KM augmentation techniques following the decision-making criterion based on risk assessment.

5.
Pharmaceuticals (Basel) ; 17(9)2024 Aug 30.
Article de Anglais | MEDLINE | ID: mdl-39338306

RÉSUMÉ

Hepatocellular carcinoma (HCC) is a highly aggressive liver malignancy and one of the most lethal cancers globally, with limited effective therapeutic options. Bile acids (BAs), as primary metabolites of hepatic cholesterol, undergo enterohepatic circulation involving secretion into the intestine and reabsorption into the liver, and their composition is modulated in this process. Recent clinical observations have revealed a correlation between alteration in the BAs profile and HCC incidence, and the effect of various species of BAs on HCC development has been investigated. The regulatory effect of different BA species on cell proliferation, migration, and apoptosis in tumor cells, as well as their interaction with gut microbiota, inflammation, and immunity have been identified to be involved in HCC progression. In this review, we summarize the current understanding of the diverse functions of BAs in HCC pathogenesis and therapy, from elucidating the fundamental mechanisms underlying both tumor-promoting and tumor-suppressive consequences of various BA species to exploring potential strategies for leveraging BAs for HCC therapy. We also discuss ongoing efforts to target specific BA species in HCC treatment while highlighting new frontiers in BA biology that may inspire further exploration regarding their connection to HCC.

6.
Front Endocrinol (Lausanne) ; 15: 1393137, 2024.
Article de Anglais | MEDLINE | ID: mdl-39345890

RÉSUMÉ

Objective: Insulin resistance (IR) is a well-established major risk factor for type 2 diabetes mellitus, nonalcoholic fatty liver disease, and atherosclerotic cardiovascular disease. Previous studies have shown an association between increased serum albumin (ALB) levels and the risk of IR. However, there is a lack of studies simultaneously evaluating the association of total protein (TP), ALB, and globulin (GLB) with IR. Methods: A total of 14,828 individuals (average age 49 ± 18 years) with complete data from the National Health and Nutrition Examination Survey (NHANES) were enrolled and divided into two groups (non-IR group, n = 8,653 and IR group, n = 6,175). Spearman's correlation analysis, multivariable logistic regression models, restricted cubic spline curves, and subgroup analysis were performed to explore those associations. Results: After adjustment for potential confounders, multivariable logistic regression analysis revealed that scaled per 10g/L increment, the fully adjusted odds ratios (ORs) (95% confidence interval (CI)) for IR prevalence were 1.54 (95% CI 1.41-1.69, P < 0.0001), 1.09 (95% CI 0.95-1.25), P = 0.1995), and 1.62 (95% CI 1.47-1.79, P < 0.0001) for TP, ALB, and GLB respectively. Compared to those in the lowest quantiles, the prevalence of IR in subjects in the highest TP and GLB quantiles was 2.06 and 1.91 times, respectively. Furthermore, restrictive cubic curves confirmed that the relationship of TP, ALB, and GLB with IR prevalence was a linear relationship. Conclusions: The present cross-sectional study, for the first time, provided supportive evidence of positive associations of TP and GLB with IR, but not ALB, and demonstrated that TP and GLB might be useful markers for IR prevalence.


Sujet(s)
Insulinorésistance , Enquêtes nutritionnelles , Sérumalbumine , Humains , Adulte d'âge moyen , Femelle , Mâle , Adulte , Études transversales , Sérumalbumine/métabolisme , Sujet âgé , Diabète de type 2/épidémiologie , Diabète de type 2/sang , Marqueurs biologiques/sang , Facteurs de risque , Globulines/métabolisme , Globulines/analyse , Sérum-globulines/analyse , Sérum-globulines/métabolisme
7.
J Ethnopharmacol ; 337(Pt 1): 118781, 2024 Sep 12.
Article de Anglais | MEDLINE | ID: mdl-39260708

RÉSUMÉ

ETHNOPHARMACOLOGICAL RELEVANCE: According to the Shen Nong Herbal Classic, Ginseng (Panax ginseng C.A. Meyer) is documented to possess life-prolonging effects and is extensively utilized in traditional Chinese medicine for the treatment of various ailments such as qi deficiency, temper deficiency, insomnia, and forgetfulness. Ginseng is commonly employed for replenishing qi and nourishing blood, fortifying the body and augmenting immunity; it has demonstrated efficacy in alleviating fatigue, enhancing memory, and retarding aging. Furthermore, it exhibits a notable ameliorative impact on age-related conditions including cardiovascular diseases and neurodegenerative disorders. One of its active constituents - ginsenoside Rg2 (G-Rg2) - exhibits potential therapeutic efficacy in addressing these ailments. AIM OF THE REVIEW: The aim of this review is to explore the traditional efficacy of ginseng in anti-aging diseases and the modern pharmacological mechanism of its potential active substance G-Rg2, in order to provide strong theoretical support for further elucidating the mechanism of its anti-aging effect. METHODS: This review provides a comprehensive analysis of the traditional efficacy of ginseng and the potential mechanisms underlying the anti-age-related disease properties of G-Rg2, based on an extensive literature review up to March 12, 2024, from PubMed, Web of Science, Scopus, Cochrane, and Google Scholar databases. Potential anti-aging mechanisms of G-Rg2 were predicted using network pharmacology and molecular docking analysis techniques. RESULTS: In traditional Chinese medicine theory, ginseng has been shown to improve aging-related diseases with a variety of effects, including tonifying qi, strengthening the spleen and stomach, nourishing yin, regulating yin and yang, as well as calming the mind. Its potential active ingredient G-Rg2 has demonstrated significant therapeutic potential in age-related diseases, especially central nervous system and cardiovascular diseases. G-Rg2 exhibited a variety of pharmacological activities, including anti-apoptotic, anti-inflammatory and antioxidant effects. Meanwhile, the network pharmacological analyses and molecular docking results were consistent with the existing literature review, further validating the potential efficacy of G-Rg2 as an anti-aging agent. CONCLUSION: The review firstly explores the ameliorative effects of ginseng on a wide range of age-related diseases based on TCM theories. Secondly, the article focuses on the remarkable significance and value demonstrated by G-Rg2 in age-related cardiovascular and neurodegenerative diseases. Consequently, G-Rg2 has broad prospects for development in intervening in aging and treating age-related health problems.

8.
Quant Imaging Med Surg ; 14(9): 6647-6659, 2024 Sep 01.
Article de Anglais | MEDLINE | ID: mdl-39281126

RÉSUMÉ

Background: The hemodynamic pathogenesis of venous pulsatile tinnitus (VPT) is still unclear. This study aimed to explore the mechanism of bone morphology and hemodynamic changes in transverse sigmoid sinus (TSS) on VPT patients. Methods: 49 patients with unilateral VPT, 26 patients with subjective tinnitus and 36 healthy controls were included in this retrospective clinical trial. Four-dimensional (4D) flow magnetic resonance imaging (MRI) was used to evaluate the hemodynamics of the TSS. High-resolution computed tomography was used to assess the perivenous bone structures. All images were independently assessed for each participant by two trained neuroradiologists. Kolmogorov-Smirnov test was used to determine the normal distribution of the data. Chi-square test and nonparametric test were used to compare classified or continuous variables. Stepwise linear regression and mediation effect analysis was used to explore the relationship between bone dehiscence (BD), hemodynamic factors and VPT symptoms. Results: Peak velocity (P=0.001) and maximum energy loss (P=0.041) in VPT group were risk factors for the severity of tinnitus. Energy loss [indirect effect =0.692, P<0.005, 95% confidence interval (CI): 0.201-1.377] and peak velocity (indirect effect =0.899, P<0.005, 95% CI: 0.406-1.582) demonstrated the complete mediation effect between the BD and VPT. BD showed a complete mediation effect between the wall shear stress (WSS) and VPT (indirect effect =15.181, P<0.005, 95% CI: 3.448-35.493). Conclusions: Cross-talk between the hemodynamic changes of TSS and BD can regulate the VPT symptoms. This type of analysis might be helpful in establishing the possible occurrence and development mechanism of the hemodynamics and bone morphology of the VPT.

9.
Cancer Innov ; 3(5): e144, 2024 Oct.
Article de Anglais | MEDLINE | ID: mdl-39290787

RÉSUMÉ

Liquid-liquid phase separation (LLPS) has emerged as a pivotal biological phenomenon involved in various cellular processes, including the formation of membrane-less organelles and the regulation of biomolecular condensates through precise spatiotemporal coordination of signaling pathways in cells. Dysregulation of LLPSs results in aberrant biomolecular condensates, which are widely implicated in tumorigenesis and cancer progression. Here, we comprehensively summarize the multifaceted roles of LLPS in tumor biology from the perspective of cancer hallmarks, including genomic stability, metabolic reprogramming progression, ferroptosis, and metastasis, to unveil the intricate mechanisms by which LLPS occurs in tumorigenesis. We discuss current discoveries related to therapeutic involvement and potential clinical applications of LLPS in cancer treatment, highlighting the potential of targeting LLPS-driven processes as novel therapeutic strategies. Additionally, we discuss the challenges associated with new approaches for cancer treatment based on LLPS. This in-depth discussion of the impact of LLPS on fundamental aspects of tumor biology provides new insights into overcoming cancer.

10.
J Inflamm Res ; 17: 5509-5519, 2024.
Article de Anglais | MEDLINE | ID: mdl-39170730

RÉSUMÉ

Purpose: To investigate the clinical value of adding Jin-gu-lian (JGL) capsules into rheumatoid arthritis (RA) treatment by examining its impact on disease activity and quality of life (QoL) through a real-world study (RWS). Patients and methods: RWS was conducted to compare the inflammatory markers, including IgM-RF, ESR, and CRP, between RA patients treated with only Western medicine (reference group) and Western medicine plus JGL (study group) during one-year follow-up. The clinical data was acquired from the hospital information system (HIS). Telephone call-based follow-up on QoL (SF-36) and accompanying symptoms, including gastrointestinal complaints, attacks of pneumonia, herpes zoster, URTIs, UTIs, and LTBIs. Finally, the anti-rheumatic drugs given to both groups were also compared. RWS was further validated for its feasibility by performing studies with hydroxychloroquine (HCQ) treatment, which is a commonly used anti-rheumatic drug for RA with mild effect. Results: The study group failed to show a significant effect on inflammatory markers, especially on the CRP levels, indicating no additional clinical value of supplementing with JGL. Similarly, at the endpoint, no significant differences between the two groups on QoL and related symptoms were observed. Our study suggests that the patients in the study group might need more anti-rheumatic drugs to fill the treatment insufficiency, and the application ratio of NSAIDs would be significantly higher than the reference group. By conducting this study on HCQ treatment, the positive aspects of controlling disease activity and reducing NSAIDs application were found, which demonstrates the utility of performing the RWS to evaluate the effect of JGL. Conclusion: Adding JGL did not significantly improve the clinical efficacy of RA treatment by this RWS. Folk herbal prescriptions such as JGL are suggested to underwent strict clinical trials before application.

11.
Fish Shellfish Immunol ; 153: 109853, 2024 Oct.
Article de Anglais | MEDLINE | ID: mdl-39173983

RÉSUMÉ

Inhibitors of NF-κB (IκBs) have been implicated as major components of the Rel/NF-κB signaling pathway, playing an important negative regulatory role in host antiviral immunity such as in the activation of interferon (IFN) in vertebrates. In the present study, the immunomodulatory effect of IκB (CgIκB2) on the expression of interferon-like protein (CgIFNLP) was evaluated in Pacific oyster (Crassostrea gigas). After poly (I:C) stimulation, the mRNA expression level of CgIκB2 in haemocytes was significantly down-regulated at 3-12 h while up-regulated at 48-72 h. The mRNA expression of CgIκB2 in haemocytes was significantly up-regulated at 3 h after rCgIFNLP stimulation. In the CgIκB2-RNAi oysters, the mRNA expression of CgIFNLP, interferon regulatory factor-8 (CgIRF8) and NF-κB subunit (CgRel), the abundance of CgIFNLP and CgIRF8 protein in haemocytes, as well as the abundance of CgRel protein in nucleus were significantly increased after poly (I:C) stimulation. Immunofluorescence assay showed that nuclear translocation of CgIRF8 and CgRel protein was promoted in CgIκB2-RNAi oysters compared with that in EGFP-RNAi group. In the CgRel-RNAi oysters, the mRNA and protein expression level of CgIFNLP significantly down-regulated after poly (I:C) stimulation. The collective results indicated that CgIκB2 plays an important role in regulating CgIFNLP expression through its effects on Rel/NF-κB and IRF signaling pathways.


Sujet(s)
Crassostrea , Régulation de l'expression des gènes , Interférons , Facteur de transcription NF-kappa B , Poly I-C , Transduction du signal , Animaux , Crassostrea/génétique , Crassostrea/immunologie , Poly I-C/pharmacologie , Facteur de transcription NF-kappa B/génétique , Facteur de transcription NF-kappa B/métabolisme , Régulation de l'expression des gènes/immunologie , Interférons/génétique , Interférons/immunologie , Interférons/métabolisme , Immunité innée/génétique , Protéines I-kappa B/génétique , Protéines I-kappa B/métabolisme , Hémocytes/immunologie , Hémocytes/métabolisme
12.
World J Clin Cases ; 12(21): 4673-4679, 2024 Jul 26.
Article de Anglais | MEDLINE | ID: mdl-39070849

RÉSUMÉ

BACKGROUND: Data from the World Health Organization's International Agency for Research on Cancer reported that China had the highest prevalence of cancer and cancer deaths in 2022. Liver and pancreatic cancers accounted for the highest number of new cases. Real-world data (RWD) is now widely preferred to traditional clinical trials in various fields of medicine and healthcare, as the traditional research approach often involves highly selected populations and interventions and controls that are strictly regulated. Additionally, research results from the RWD match global reality better than those from traditional clinical trials. AIM: To analyze the cost disparity between surgical treatments for liver and pancreatic cancer under various factors. METHODS: This study analyzed RWD 1137 cases within the HB1 group (patients who underwent pancreatectomy, hepatectomy, and/or shunt surgery) in 2023. It distinguished different expenditure categories, including medical, nursing, technical, management, drug, and consumable costs. Additionally, it assessed the contribution of each expenditure category to total hospital costs and performed cross-group comparisons using the non-parametric Kruskal-Wallis test. This study used the Steel-Dwass test for post-hoc multiple comparisons and the Spearman correlation coefficient to examine the relationships between variables. RESULTS: The study found that in HB11 and HB13, the total hospitalization costs were significantly higher for pancreaticoduodenectomy than for pancreatectomy and hepatectomy. Although no significant difference was observed in the length of hospital stay between patients who underwent pancreaticoduodenectomy and pancreatectomy, both were significantly longer than those who underwent liver resection. In HB15, no significant difference was observed in the total cost of hospitalization between pancreaticoduodenectomy and pancreatectomy; however, both were significantly higher than those in hepatectomy. Additionally, the length of hospital stay was significantly longer for patients who underwent pancreaticoduodenectomy than for those who underwent pancreatectomy or liver resection. CONCLUSION: China Healthcare Security Diagnosis Related Groups payment system positively impacts liver and pancreatic cancer surgeries by improving medical quality and controlling costs. Further research could refine this grouping system and ensure continuous effectiveness and sustainability.

13.
Cancer Innov ; 3(2): e94, 2024 Apr.
Article de Anglais | MEDLINE | ID: mdl-38946932

RÉSUMÉ

von Hippel-Lindau (VHL) disease is a rare autosomal dominant multiorgan disease characterized by several benign and malignant tumors rich in vascular, as well as cysts in other organs. A great clinical treatment strategy is significantly warranted for good prognosis of patients with VHL disease. Herein, we reported a case of a 45-year-old woman diagnosed with VHL disease with spinal hemangioblastoma (HB) and clear cell renal cell carcinoma (ccRCC). Four years after the resection of the right kidney, a recurrent RCC in the right kidney and a malignant lesion in the left kidney were observed. This patient was started on sorafenib (800 mg, daily) and tislelizumab (200 mg per 3 weeks). After 6 months of treatment, the size of renal cell carcinoma was dramatically reduced and renal function improved. More importantly, she achieved partial response during the whole treatment. Microscopically, intramedullary masses resection was done and the HB in T4-5 thoracic spinal was removed. Neurologic symptoms such as numbness and pain were remarkably alleviated. Additionally, tislelizumab-induced elevation in liver transaminase levels and hypothyroidism were revered by hepatoprotector and levothyroxine, respectively. In short, comprehensive treatment strategies may benefit patients with VHL disease, especially with HB and ccRCC.

14.
Sensors (Basel) ; 24(13)2024 Jun 28.
Article de Anglais | MEDLINE | ID: mdl-39000976

RÉSUMÉ

We developed a novel method based on self-supervised learning to improve the ghost imaging of occluded objects. In particular, we introduced a W-shaped neural network to preprocess the input image and enhance the overall quality and efficiency of the reconstruction method. We verified the superiority of our W-shaped self-supervised computational ghost imaging (WSCGI) method through numerical simulations and experimental validations. Our results underscore the potential of self-supervised learning in advancing ghost imaging.

15.
Int J Pharm ; 661: 124424, 2024 Aug 15.
Article de Anglais | MEDLINE | ID: mdl-38971510

RÉSUMÉ

Doxorubicin (DOX) is a chemotherapy drug used for hepatocellular carcinoma (HCC) treatment, but its effectiveness can be dramatically dampened by cancer cell chemoresistance. Signal transducer and activator of transcription 3 (STAT3) is implicated with drug resistance in a range of cancers (e.g., HCC), and the STAT3 inhibition can reverse the resistance of cancer cells to chemotherapeutic drugs. In the present study, a combination regimen to improve the efficiency of DOX was provided via the STAT3 blockade using plumbagin (PLB). A poly(lactic-co-glycolic acid) decorated by polyethylene glycol and aminoethyl anisamide was produced in the present study with the hope of generating the nanoparticles for co-delivery of DOX and PLB. The resulting co-formulation suppressed the STAT3 activity and achieved the synergistic chemotherapy, which led to tumor inhibition in the mice with subcutaneous DOX-resistant HCC, without causing any toxicity. The present study reveals the synergism of DOX and PLB, and demonstrates a promising combinatorial approach for treating HCC.


Sujet(s)
Carcinome hépatocellulaire , Doxorubicine , Synergie des médicaments , Tumeurs du foie , Naphtoquinones , Doxorubicine/administration et posologie , Doxorubicine/pharmacologie , Doxorubicine/composition chimique , Naphtoquinones/administration et posologie , Naphtoquinones/composition chimique , Naphtoquinones/pharmacologie , Animaux , Carcinome hépatocellulaire/traitement médicamenteux , Tumeurs du foie/traitement médicamenteux , Humains , Polyéthylène glycols/composition chimique , Polyéthylène glycols/administration et posologie , Souris de lignée BALB C , Copolymère d'acide poly(lactique-co-glycolique)/composition chimique , Facteur de transcription STAT-3/métabolisme , Facteur de transcription STAT-3/antagonistes et inhibiteurs , Lignée cellulaire tumorale , Souris , Nanoparticules/composition chimique , Résistance aux médicaments antinéoplasiques/effets des médicaments et des substances chimiques , Système d'administration de médicaments à base de nanoparticules/composition chimique , Souris nude , Antibiotiques antinéoplasiques/administration et posologie , Antibiotiques antinéoplasiques/pharmacologie , Mâle , Protocoles de polychimiothérapie antinéoplasique/administration et posologie , Protocoles de polychimiothérapie antinéoplasique/pharmacologie
16.
J Chromatogr A ; 1731: 465180, 2024 Aug 30.
Article de Anglais | MEDLINE | ID: mdl-39053255

RÉSUMÉ

Novel magnetic covalent organic frameworks (COFs) were prepared by one-pot synthetic strategy and employed as an efficient adsorbent for magnetic solid-phase extraction (MSPE) of naphthaleneacetic acid (NAA) in food samples. Depending on the predesigned the hydrogen bonding, π-π and hydrophobic interactions of magnetic COFs, the efficient and selective extraction process for NAA was achieved within 15 min. The magnetic COFs adsorbent combined with HPLC-UV was devoted to develop a novel quantitative method for NAA in complex food. The method afforded good coefficient in range of 0.002-10.0 µg mL-1 and low limit of detection was 0.0006 µg mL-1. And the newly established method afforded less adsorbent consumption, wider linearity and lower LODs than the reported analytical methods. Ultimately, the method was successfully applied to determine NAA in fresh pear, tomato and peach juice. The magnetic COFs based MSPE coupled with HPLC-UV method provided a simple, efficient and dependable alternative to monitor trace NAA in food samples.


Sujet(s)
Limite de détection , Réseaux organométalliques , Acides naphtalèneacétiques , Extraction en phase solide , Extraction en phase solide/méthodes , Chromatographie en phase liquide à haute performance/méthodes , Acides naphtalèneacétiques/analyse , Acides naphtalèneacétiques/composition chimique , Réseaux organométalliques/composition chimique , Adsorption , Contamination des aliments/analyse , Solanum lycopersicum/composition chimique , Jus de fruits et de légumes/analyse
17.
Cell Death Dis ; 15(7): 515, 2024 Jul 18.
Article de Anglais | MEDLINE | ID: mdl-39025844

RÉSUMÉ

Although multiple myeloma (MM) responds well to immunotherapeutic treatment, certain portions of MM are still unresponsive or relapse after immunotherapy. Other immune molecules are needed for the immunotherapy of MM. Here, we revealed that leukocyte immunoglobulin-like receptor B4 (LILRB4) was highly expressed in multiple myeloma cell lines and patient samples and that the expression of LILRB4 was adversely correlated with the overall survival of MM patients. Knockdown of LILRB4 efficiently delayed the growth of MM cells both in vitro and in vivo. Mechanistically, IKZF1 transactivated LILRB4 expression to trigger the downstream of STAT3-PFKFB1 pathways to support MM cell proliferation. Blockade of LILRB4 signaling by blocking antibodies can effectively inhibit MM progression. Our data show that targeting LILRB4 is potentially an additional therapeutic strategy for the immunotherapeutic treatment of MM.


Sujet(s)
Myélome multiple , Récepteurs immunologiques , Facteur de transcription STAT-3 , Transduction du signal , Myélome multiple/anatomopathologie , Myélome multiple/métabolisme , Myélome multiple/génétique , Humains , Facteur de transcription STAT-3/métabolisme , Animaux , Lignée cellulaire tumorale , Récepteurs immunologiques/métabolisme , Récepteurs immunologiques/génétique , Souris , Prolifération cellulaire , Facteur de transcription Ikaros/métabolisme , Facteur de transcription Ikaros/génétique , Glycoprotéines membranaires/métabolisme , Glycoprotéines membranaires/génétique , Femelle , Régulation de l'expression des gènes tumoraux , Mâle
18.
Clin Case Rep ; 12(6): e9031, 2024 Jun.
Article de Anglais | MEDLINE | ID: mdl-38883224

RÉSUMÉ

Key Clinical Message: Acute chest pain can be the first manifestation of multiple endocrine neoplasia type 1(MEN1)-associated thymic neuroendocrine neoplasms (NEN). Comprehensive treatment may be an effective strategy for MEN1-associated NEN. Abstract: Multiple endocrine neoplasia type 1(MEN1)-associated thymic neuroendocrine neoplasms (NEN) is caused by the mutation of tumor suppressor MEN1 gene. Patients with MEN1-associated NEN initially presenting with acute chest pain are very rare. In the manuscript, we reported a case of a 45-year-old man who developed MEN1-associated NEN with acute chest pain as initial symptom. Thoracoscopic thymotomy was performed and thymic NEN was successfully removed. Genetic test showed a germline mutation of MEN1 gene in this patient. Immunohistochemical staining exhibited Syn(+), CgA(+), INSM1(+), CD56(+) and Ki67-positive cells (2%) in MEN1-associated NEN. Further evaluation unveiled MEN1-associated benign tumors including digestive NEN and pituitary gland adenoma. The 99mTc-HYNIC-TOC scintigraphy showed that focally increased radioactivity in the mid-upper abdomen. This patient was administered with 50Gy/25F of radiation dose to treat the postoperative lesions. Subsequently, sandostatin LAR (30 mg per week) was used as systemic therapy. He had no recurrence or metastasis for 6-month follow-up. Thus, acute chest pain can be the first manifestation of MEN1-associated NEN, and comprehensive treatment including surgery, radiation and systemic treatment may be an effective strategy for MEN1-associated NEN.

19.
PLoS One ; 19(6): e0306041, 2024.
Article de Anglais | MEDLINE | ID: mdl-38941301

RÉSUMÉ

Based on 908 consumer questionnaire data from 15 urban areas in Shanghai, we use the binary logit model to empirically analyze the impact of traceability label trust on consumers' traceable pork purchase behavior and the moderating effect of food safety identification. After constructing the theoretical analysis framework, this paper verifies it from the two aspects of statistical analysis and econometric analysis and tests the robustness of the final results. The results show that: first, traceability label trust has a significant positive impact on consumers' traceability pork behavior. Second, food safety identification can significantly strengthen and promote this process. Third, consumers' purchasing behavior is significantly positively affected by traceable pork consumption scenarios and price labels, but the permanent elderly in the composition of family members significantly negative impact on it. Therefore, we put forward relevant policy suggestions, such as strengthening the knowledge popularization and publicity based on the advantageous commodity attributes of traceable pork, carrying out food safety knowledge popularization education, and enhancing consumers' risk perception and food safety identification ability.


Sujet(s)
Comportement du consommateur , Étiquetage des aliments , Sécurité des aliments , Confiance , Humains , Mâle , Femelle , Adulte d'âge moyen , Adulte , Enquêtes et questionnaires , Animaux , Suidae , Chine , Jeune adulte , Sujet âgé
20.
Chin Med ; 19(1): 83, 2024 Jun 11.
Article de Anglais | MEDLINE | ID: mdl-38862981

RÉSUMÉ

BACKGROUND: Respiratory syncytial virus (RSV)-induced lung inflammation is one of the main causes of hospitalization and easily causes disruption of intestinal homeostasis in infants, thereby resulting in a negative impact on their development. However, the current clinical drugs are not satisfactory. Zedoary turmeric oil injection (ZTOI), a patented traditional Chinese medicine (TCM), has been used for clinical management of inflammatory diseases. However, its in vivo efficacy against RSV-induced lung inflammation and the underlying mechanism remain unclear. PURPOSE: The present study was designed to confirm the in vivo efficacy of ZTOI against lung inflammation and intestinal disorders in RSV-infected young mice and to explore the potential mechanism. STUDY DESIGN AND METHODS: Lung inflammation was induced by RSV, and cytokine antibody arrays were used to clarify the effectiveness of ZTOI in RSV pneumonia. Subsequently, key therapeutic targets of ZTOI against RSV pneumonia were identified through multi-factor detection and further confirmed. The potential therapeutic material basis of ZTOI in target tissues was determined by non-target mass spectrometry. After confirming that the pharmacological substances of ZTOI can reach the intestine, we used 16S rRNA-sequencing technology to study the effect of ZTOI on the intestinal bacteria. RESULTS: In the RSV-induced mouse lung inflammation model, ZTOI significantly reduced the levels of serum myeloperoxidase, serum amyloid A, C-reactive protein, and thymic stromal lymphoprotein; inhibited the mRNA expression of IL-10 and IL-6; and decreased pathological changes in the lungs. Immunofluorescence and qPCR experiments showed that ZTOI reduced RSV load in the lungs. According to cytokine antibody arrays, platelet factor 4 (PF4), a weak chemotactic factor mainly synthesized by megakaryocytes, showed a concentration-dependent change in lung tissues affected by ZTOI, which could be the key target for ZTOI to exert anti-inflammatory effects. Additionally, sesquiterpenes were enriched in the lungs and intestines, thereby exerting anti-inflammatory and regulatory effects on gut microbiota. CONCLUSION: ZTOI can protect from lung inflammation via PF4 and regulate gut microbiota disorder in RSV-infected young mice by sesquiterpenes, which provides reference for its clinical application in RSV-induced lung diseases.

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