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1.
Article de Anglais | MEDLINE | ID: mdl-39255899

RÉSUMÉ

PURPOSE: The long-term fertility impact of cancer treatments is a significant concern for young breast cancer survivors. These reproductive concerns often become a persistent source of stress, negatively affecting their quality of life. This study aims to explore the reproductive concerns experienced by young breast cancer survivors post-treatment and the factors influencing their perceptions. METHODS: This phenomenological study utilized semi-structured interviews to collect data. Eighteen participants were recruited from a tertiary hospital in Mainland China. The interviews were transcribed verbatim and analysed using Colaizzi's method. RESULTS: Data analysis revealed five themes and fourteen subthemes: (1) multiple emotional burdens interwoven with concerns about fertility; (2) concerns about risks associated with reproduction; (3) dilemma of childrearing; (4) the significance of reproduction; (5) support needs from family, peers, and professionals. CONCLUSIONS: Young breast cancer survivors in China face significant challenges related to reproductive issues. Reproductive health is a crucial aspect of breast cancer survivorship care. Healthcare providers must be attentive to the reproductive concerns of survivors, recognize the importance of multidimensional support for positive adaptation, and offer tailored and ongoing interventions to manage reproductive health in young breast cancer survivors.

2.
Bioorg Med Chem Lett ; 112: 129946, 2024 Sep 01.
Article de Anglais | MEDLINE | ID: mdl-39226996

RÉSUMÉ

High levels of extracellular adenosine in tumor microenvironment (TME) has extensive immunosuppressive effect. CD73 catalyzes the conversion of AMP into adenosine and regulates its production. Inhibiting CD73 can reduce the level of adenosine and reverse adenosine-mediated immune suppression. Therefore, CD73 has emerged as a valuable target for cancer immunotherapy. Here, a new series of malonic acid non-nucleoside derivatives were designed, synthesized and evaluated as CD73 inhibitors. Among them, compounds 18 and 19 exhibited significant inhibition activities against hCD73 with IC50 values of 0.28 µM and 0.10 µM, respectively, suggesting the feasibility of replacing the benzotriazole moiety in the lead compound. This study explored the novelty and structural diversity of CD73 inhibitors.

3.
Mol Med ; 30(1): 136, 2024 Sep 03.
Article de Anglais | MEDLINE | ID: mdl-39227768

RÉSUMÉ

Acute pancreatitis (AP) is a multifaceted inflammatory disorder stemming from the aberrant activation of trypsin within the pancreas. Despite the contribution of various factors to the pathogenesis of AP, such as trypsin activation, dysregulated increases in cytosolic Ca2+ levels, inflammatory cascade activation, and mitochondrial dysfunction, the precise molecular mechanisms underlying the disease are still not fully understood. Mitophagy, a cellular process that preserves mitochondrial homeostasis under stress, has emerged as a pivotal player in the context of AP. Research suggests that augmenting mitophagy can mitigate pancreatic injury by clearing away malfunctioning mitochondria. Elucidating the role of mitophagy in AP may pave the way for novel therapeutic strategies. This review article aims to synthesize the current research findings on mitophagy in AP and underscore its significance in the clinical management of the disorder.


Sujet(s)
Mitochondries , Mitophagie , Pancréatite , Humains , Pancréatite/métabolisme , Pancréatite/anatomopathologie , Animaux , Mitochondries/métabolisme , Maladie aigüe
4.
Sci China Life Sci ; 2024 Aug 29.
Article de Anglais | MEDLINE | ID: mdl-39235560

RÉSUMÉ

Targeting the PD-1/PD-L1 axis with small-molecular inhibitors is a promising approach for immunotherapy. Here, we identify a natural pentacyclic triterpenoid, Pygenic Acid A (PA), as a PD-1 signaling inhibitor. PA exerts anti-tumor activity in hPD-1 knock-in C57BL/6 mice and enhances effector functions of T cells to promote immune responses by disrupting the PD-1 signaling transduction. Furthermore, we identify SHP-2 as the direct molecular target of PA for inhibiting the PD-1 signaling transduction. Subsequently, mechanistic studies suggest that PA binds to a new druggable site in the phosphorylated PD-1 ITSM recognition site of SHP-2, inhibiting the recruitment of SHP-2 by PD-1. Taken together, our findings demonstrate that PA has a potential application in cancer immunotherapy and occupying the phosphorylated ITSM recognition site of SHP-2 may serve as an alternative strategy to develop PD-1 signaling inhibitors. In addition, our success in target recognition provides a paradigm of target identification and confirmation for natural products.

5.
Acupunct Med ; : 9645284241274158, 2024 Sep 01.
Article de Anglais | MEDLINE | ID: mdl-39219163

RÉSUMÉ

OBJECTIVE: To evaluate the efficacy of acupuncture in drinkers with chronic prostatitis / chronic pelvic pain syndrome (CP/CPPS). METHODS: We conducted a secondary analysis of a randomized controlled trial across multiple centers, involving 224 drinkers. Patients received either acupuncture or sham acupuncture treatment. The primary outcome was the proportion of responders, defined as participants who had a reduction of 6 points or more from baseline in the National Institute of Health-Chronic Prostatitis Symptom Index (NIH-CPSI) total score at weeks 8 and 32. Secondary outcomes measures included the Global Response Assessment (GRA), International Prostate Symptom Score (IPSS) and International Index of Erectile Function 5 (IIEF-5). RESULTS: One hundred and twelve drinkers were included in each group (n = 224 in total). The proportion of responders in terms of NIH-CPSI was 58.9% versus 40.3% in the acupuncture group (AG) and sham acupuncture group (SAG), respectively, with a statistically significant difference of 18.6% (p = 0.002) at week 8. Higher proportions of responders with respect to NIH-CPSI (p < 0.001 at week 32) and GRA (p < 0.001 at week 8 and p = 0.01 at week 32) were observed in the AG compared with the SAG. No between-group differences were found in the changes in IPSS at any assessment time point. Changes in IIEF-5 score were significantly higher in the AG than in the SAG at weeks 20 and 32, while the difference was not statistically significant at week 8. CONCLUSION: Acupuncture appeared to alleviate the symptoms of pain among drinkers with CP/CPPS and improve their quality of life, but had no demonstrable effect on urinary tract symptoms or erectile function among these patients. TRIAL REGISTRATION NUMBER: NCT03213938 (ClinicalTrials.gov).

6.
Apoptosis ; 2024 Sep 02.
Article de Anglais | MEDLINE | ID: mdl-39222275

RÉSUMÉ

Lung cancer is one of the most common malignant tumors. Despite decades of research, the treatment of lung cancer remains challenging. Non-small cell lung cancer (NSCLC) is the primary type of lung cancer and is a significant focus of research in lung cancer treatment. The deubiquitinase ubiquitin-specific protease 28 (USP28) plays a role in the progression of various tumors and serves as a potential therapeutic target. This study aims to determine the role of USP28 in the progression of NSCLC. We examined the impact of the USP28 inhibitor AZ1 on the cell cycle, apoptosis, DNA damage response, and cellular immunogenicity in non-small cell lung cancer. We observed that AZ1 and siUSP28 induce DNA damage, leading to the activation of Noxa-mediated mitochondrial apoptosis. The dsDNA and mtDNA released from DNA damage and mitochondrial apoptosis activate tumor cell immunogenicity through the cGAS-STING signaling pathway. Simultaneously, targeting USP28 promotes the degradation of c-MYC, resulting in cell cycle arrest and inhibition of DNA repair. This further promotes DNA damage-induced cell apoptosis mediated by the Noxa protein, thereby enhancing tumor cell immunogenicity mediated by dsDNA and mtDNA. Moreover, we found that the combination of AZ1 and cisplatin (DDP) can enhance therapeutic efficacy, thereby providing a new strategy to overcome cisplatin resistance in NSCLC. These findings suggest that targeting USP28 and combining it with cisplatin are feasible strategies for treating NSCLC.

7.
Heliyon ; 10(14): e34011, 2024 Jul 30.
Article de Anglais | MEDLINE | ID: mdl-39100456

RÉSUMÉ

Cancer is widely regarded as a leading cause of death in humans, with colon adenocarcinoma (COAD) ranking among the most prevalent types. Cuproptosis is a novel form of cell death mediated by protein lipoylation. Cuproptosis-related genes (CRGs) participate in tumourigenesis and development. Their role in pan-cancer and COAD require further investigation. This study comprehensively evaluated the relationship among CRGs, pan-cancer, and COAD. Our research revealed the differential expression of CRGs and the cuproptosis potential index (CPI) between normal and tumour tissues, and further explored the correlation of CRGs or CPI with prognosis, immune infiltration, tumor mutant burden(TMB), microsatellite instability (MSI), and drug sensitivity in pan-cancer. Gene set enrichment analysis (GSEA) revealed that oxidative phosphorylation and fatty acid metabolism pathways were significantly enriched in the high CPI group of most tumours. FDX1 and CDKN2A were chosen for further exploration, and we found an independent association between FDX1 and CDKN2A and prognosis, immune infiltration, TMB, and MSI in pan-cancer. Furthermore, a prognostic risk model based on the association between CRGs and COAD was built, and the correlations between the risk score and prognosis, immune-related characteristics, and drug sensitivity were analysed. COAD was then divided into three subtypes using cluster analysis, and the differences among the subtypes in prognosis, CPI, immune-related characteristics, and drug sensitivity were determined. Due to the level of LIPT1 was notably positive related with the risk score, the cytological identification was carried out to identify the association of LIPT1 with proliferation and migration of colon cancer cells. In summary, CRGs can be used as potential prognostic biomarkers to predict immune infiltration levels in patients with pan-cancer. In addition, the risk model could more accurately predict the prognosis and immune infiltration levels of COAD and better guide the direction of clinical medication. Thus, FDX1, CDKN2A, and LIPT1 may serve as prospective new targets for cancer therapy.

8.
J Gene Med ; 26(8): e3722, 2024 Aug.
Article de Anglais | MEDLINE | ID: mdl-39117601

RÉSUMÉ

BACKGROUND: Lovastatin, a type of statin usually considered as a lipid-lowering drug that lowers blood cholesterol and low-density lipoprotein cholesterol levels, has been rediscovered to have anticancer activity. Fewer studies exist regarding the effect of lovastatin on esophageal squamous cell carcinoma (ESCC). METHODS: Here, we report that lovastatin shows anticancer effect on ESCC By affecting the mitochondrial autophagy pathway. Moreover, based on proteomics and computer molecular simulations found that RAB38 and RAB27A may be a target of lovastatin. RESULTS: We observed that autophagy of mitochondria is inhibited by lovastatin, affecting esophageal squamous cell proliferation. There is a possible link between the expression of RAB38, RAB27A and immune cell invasion in esophageal cancer. CONCLUSIONS: These results demonstrate the huge potential of lovastatin as an RAB38, RAB27A inhibitor in esophageal cancer chemotherapy and chemoprevention.


Sujet(s)
Autophagie , Prolifération cellulaire , Tumeurs de l'oesophage , Carcinome épidermoïde de l'oesophage , Lovastatine , Protéomique , Lovastatine/pharmacologie , Humains , Carcinome épidermoïde de l'oesophage/traitement médicamenteux , Carcinome épidermoïde de l'oesophage/métabolisme , Carcinome épidermoïde de l'oesophage/anatomopathologie , Prolifération cellulaire/effets des médicaments et des substances chimiques , Protéomique/méthodes , Tumeurs de l'oesophage/traitement médicamenteux , Tumeurs de l'oesophage/métabolisme , Tumeurs de l'oesophage/anatomopathologie , Lignée cellulaire tumorale , Autophagie/effets des médicaments et des substances chimiques , Protéines G rab/métabolisme , Mitochondries/métabolisme , Mitochondries/effets des médicaments et des substances chimiques , Antinéoplasiques/pharmacologie , Antinéoplasiques/usage thérapeutique , Régulation de l'expression des gènes tumoraux/effets des médicaments et des substances chimiques , Simulation de docking moléculaire
9.
J Biopharm Stat ; : 1-15, 2024 Aug 11.
Article de Anglais | MEDLINE | ID: mdl-39127994

RÉSUMÉ

Dose optimization is a critical challenge in drug development. Historically, dose determination in oncology has followed a divergent path from other non-oncology therapeutic areas due to the unique characteristics and requirements in Oncology. However, with the emergence of new drug modalities and mechanisms of drugs in oncology, such as immune therapies, radiopharmaceuticals, targeted therapies, cytostatic agents, and others, the dose-response relationship for efficacy and toxicity could be vastly varied compared to the cytotoxic chemotherapies. The doses below the MTD may demonstrate similar efficacy to the MTD with an improved tolerability profile, resembling what is commonly observed in non-oncology treatments. Hence, alternate strategies for dose optimization are required for new modalities in oncology drug development. This paper delves into the historical evolution of dose finding methods from non-oncology to oncology, highlighting examples and summarizing the underlying drivers of change. Subsequently, a practical framework and guidance are provided to illustrate how dose optimization can be incorporated into various stages of the development program. We provide the following general recommendations: 1) The objective for phase I is to identify a dose range rather than a single MTD dose for subsequent development to better characterize the safety and tolerability profile within the dose range. 2) At least two doses separable by PK are recommended for dose optimization in phase II. 3) Ideally, dose optimization should be performed before launching the confirmatory study. Nevertheless, innovative designs such as seamless II/III design can be implemented for dose selection and may accelerate the drug development program.

10.
Quant Imaging Med Surg ; 14(8): 5803-5813, 2024 Aug 01.
Article de Anglais | MEDLINE | ID: mdl-39144027

RÉSUMÉ

Background: Parametrial infiltration (PMI) is an important indicator for staging and treatment of cervical cancer (CC). The potential of amide proton transfer-weighted (APTw) parameters of peritumor tissue in predicting PMI is still uncertain. This study aims to explore whether the APTw parameters of peritumor tissue can improve diagnostic value of diffusion-weighted imaging (DWI) in magnetic resonance imaging (MRI). Methods: Eighty-one patients with pathologic analysis-confirmed CC were enrolled in this retrospective study. All patients underwent APTw MRI and DWI. The APTw values of tumor (APTw-t), APTw values in peritumor tissues (APTw-p) and apparent diffusion coefficient (ADC) values were independently reviewed by two radiologists to map the regions of interest and measure the corresponding values. Receiver operating characteristic curves were generated to evaluate the diagnostic performance of these quantitative parameters. Results: The study patients were divided into the PMI group (n=22) and non-PMI group (n=59). The APTw-t and APTw-p values (%) of PMI group were higher than those of the non-PMI group [3.71 (interquartile range, IQR, 3.60-3.98) and 2.75 (IQR, 2.68-2.77) vs. 3.33 (IQR, 3.24-3.60) and 1.98 (IQR, 1.82-2.36); P<0.001]. The ADC values of PMI group were lower than those of non-PMI group [0.88 (IQR, 0.83-0.94) ×10-3 vs. 0.95 (IQR, 0.88-1.04)×10-3 mm2/sec; P<0.001]. The area under the curve (AUC) of APTw-t, APTw-p and ADC value for PMI diagnosis were 0.810, 0.831 and 0.806 respectively. In addition, the AUC value (0.918) of APTw-p + ADC was optimal, with a sensitivity and specificity of 91.20% and 87.20% respectively. Conclusions: APTw in peritumor tissues, combined with ADC value can be used to efficiently distinguish PMI of CC.

12.
Lancet Haematol ; 2024 Jul 23.
Article de Anglais | MEDLINE | ID: mdl-39059405

RÉSUMÉ

BACKGROUND: Some challenges still exist with single-target B-cell maturation antigen (BCMA) chimeric antigen receptor (CAR) T-cell therapies due to variable or negative BCMA expression, although they have yielded remarkable efficacy in relapsed or refractory multiple myeloma. We developed anti-BCMA/GPRC5D bispecific CARs to mitigate the limitations and potentiate the functions of CAR T cells. METHODS: This single-arm, phase 1 trial was conducted at the Affiliated Hospital of Xuzhou Medical University (Xuzhou, China). The trial enrolled patients aged 18-75 years with relapsed or refractory multiple myeloma and an Eastern Cooperative Oncology Group performance status of 0-3. Anti-BCMA/GPRC5D bispecific CAR T cells were administered at 0·5 × 106, 1·0 × 106, 2·0 × 106, and 4·0 × 106 CAR T cells per kg in the dose-escalation phase, with additional patients included at the dose selected for the dose-expansion phase. The primary endpoint was safety, which included dose-limiting toxicity and maximum tolerated dose. Activity was also evaluated as a secondary endpoint. The maximum tolerated dose was chosen for the dose-expansion phase. Safety and activity analyses were done in all patients who received anti-BCMA/GPRC5D bispecific CAR T cells as defined in the protocol. This trial is registered with ClinicalTrials.gov (NCT05509530) and is complete. FINDINGS: Between Sept 1, 2022, and Nov 3, 2023, 24 patients were enrolled and underwent apheresis. Three patients were excluded after apheresis (two patients discontinued due to rapid disease progression and one patient was withdrawn because of failed manufacture of CAR T cells), so 21 patients were infused with anti-BCMA/GPRC5D bispecific CAR T cells. Median follow-up was 5·8 months (IQR 5·2-6·7). Median age was 62 years (IQR 56-67). Eight (38%) patients were male, and 13 (62%) female. All patients were Chinese. At the 4·0 × 106 CAR T cells per kg dose, two patients had dose-limiting toxicities, of whom one died of subarachnoid haemorrhage (which was not considered to be related to the study treatment). The maximum tolerated dose was identified as 2·0 × 106 CAR T cells per kg. The most common grade 3 or worse adverse events were haematological toxicities in 19 (90%) patients (except lymphopenia). 15 (71%) patients had cytokine release syndrome, of which all cases were grade 1 or 2. One case of grade 1 immune effector cell-associated neurotoxicity syndrome (ICANS) was observed in a patient who received 4·0 × 106 CAR T cells per kg. No ICANS or grade 3 or worse organ toxicities were observed in patients who received 0·5-2·0 × 106 CAR T cells per kg. The overall response rate was 86% (18 of 21 patients), with 13 (62%) patients having a complete response or better, and 17 (81%) patients having measurable residual disease negativity. Of the 12 patients who received 2·0 × 106 CAR T cells per kg (three in the dose-escalation phase and an addition nine in the dose-expansion phase), the overall response rate was 92% (11 of 12 patients) with nine (75%) patients having a complete response or better. INTERPRETATION: Anti-BCMA/GPRC5D bispecific CAR T cells show a good safety profile and encouraging activity in patients with relapsed or refractory multiple myeloma. FUNDING: National Natural Science Foundation of China. TRANSLATION: For the Chinese translation of the abstract see Supplementary Materials section.

13.
J Clin Anesth ; 97: 111559, 2024 Jul 23.
Article de Anglais | MEDLINE | ID: mdl-39047532

RÉSUMÉ

BACKGROUND: Nasal cannulas and face masks are common oxygenation tools used in conventional oxygen therapy for patients undergoing endoscopic surgery with sedation. However, as a novel supraglottic ventilation technique, the application of supraglottic jet oxygenation and ventilation (SJOV) in endoscopic surgery has not been well established. METHOD: We searched six electronic databases from inception to January 16, 2024, to assess the oxygenation/ventilation efficacy and side effects of the of SJOV in endoscopic surgery. The primary outcome was the incidence of hypoxemia. The secondary outcomes were the incidence of respiratory depression and adverse effects (nasal bleeding, sore throat, and dry mouth). RESULTS: Nine trials involving 2017 patients were included. The results demonstrated that the incidence of hypoxemia was lower in the SJOV group compared with the conventional oxygen therapy (COT) group [9 trails; 2017 patients; risk ratio (RR) = 0.18; 95% confidence interval (CI), (0.11-0.28)]. Subgroup analyses showed that SJOV reduced the incidence of hypoxemia in the high-risk group but had no effect on the low-risk group. The incidence of respiratory depression is lower in SJOV than in COT, but has increased side effects such as dry mouth. There was no statistically significant difference in nose bleeding or sore throat between the two groups. CONCLUSION: Compared with the COT, the SJOV decreased the incidence of hypoxemia in high-risk patients during endoscopic surgery with sedation. There was an increased risk of dry mouth, but not of nose bleeding or sore throat, during endoscopic surgery under sedation.

14.
Ann Intern Med ; 177(8): 1048-1057, 2024 Aug.
Article de Anglais | MEDLINE | ID: mdl-38950397

RÉSUMÉ

BACKGROUND: Acupuncture may improve degenerative lumbar spinal stenosis (DLSS), but evidence is insufficient. OBJECTIVE: To investigate the effect of acupuncture for DLSS. DESIGN: Multicenter randomized clinical trial. (ClinicalTrials.gov: NCT03784729). SETTING: 5 hospitals in China. PARTICIPANTS: Patients with DLSS and predominantly neurogenic claudication pain symptoms. INTERVENTION: 18 sessions of acupuncture or sham acupuncture (SA) over 6 weeks, with 24-week follow-up after treatment. MEASUREMENTS: The primary outcome was change from baseline in the modified Roland-Morris Disability Questionnaire ([RMDQ] score range, 0 to 24; minimal clinically important difference [MCID], 2 to 3). Secondary outcomes were the proportion of participants achieving minimal (30% reduction from baseline) and substantial (50% reduction from baseline) clinically meaningful improvement per the modified RMDQ. RESULTS: A total of 196 participants (98 in each group) were enrolled. The mean modified RMDQ score was 12.6 (95% CI, 11.8 to 13.4) in the acupuncture group and 12.7 (CI, 12.0 to 13.3) in the SA group at baseline, and decreased to 8.1 (CI, 7.1 to 9.1) and 9.5 (CI, 8.6 to 10.4) at 6 weeks, with an adjusted difference in mean change of -1.3 (CI, -2.6 to -0.03; P = 0.044), indicating a 43.3% greater improvement compared with SA. The between-group difference in the proportion of participants achieving minimal and substantial clinically meaningful improvement was 16.0% (CI, 1.6% to 30.4%) and 12.6% (CI, -1.0% to 26.2%) at 6 weeks. Three cases of treatment-related adverse events were reported in the acupuncture group, and 3 were reported in the SA group. All events were mild and transient. LIMITATION: The SA could produce physiologic effects. CONCLUSION: Acupuncture may relieve pain-specific disability among patients with DLSS and predominantly neurogenic claudication pain symptoms, although the difference with SA did not reach MCID. The effects may last 24 weeks after 6-week treatment. PRIMARY FUNDING SOURCE: 2019 National Administration of Traditional Chinese Medicine "Project of building evidence-based practice capacity for TCM-Project BEBPC-TCM" (NO. 2019XZZX-ZJ).


Sujet(s)
Thérapie par acupuncture , Claudication intermittente , Vertèbres lombales , Sténose du canal vertébral , Humains , Sténose du canal vertébral/complications , Sténose du canal vertébral/thérapie , Mâle , Femelle , Adulte d'âge moyen , Claudication intermittente/thérapie , Sujet âgé , Résultat thérapeutique , Évaluation de l'invalidité
15.
BMJ Open ; 14(7): e080743, 2024 Jul 20.
Article de Anglais | MEDLINE | ID: mdl-39032929

RÉSUMÉ

INTRODUCTION: Benign prostatic hyperplasia (BPH) is a condition commonly seen among men aged over 40, significantly affecting their quality of life and typically accompanied by lower urinary tract symptoms (LUTS). Acupuncture presents a potentially effective treatment option; however, the exact effects remain uncertain. Therefore, we design this multicentre randomised trial to evaluate the efficacy and safety of electroacupuncture (EA) for relieving LUTS in men with BPH. METHODS AND ANALYSIS: A two-arm, sham-controlled, subject-blinded and assessor-blinded trial will be conducted in 11 hospitals in China to compare EA with sham electroacupuncture (SA) in treating moderate to severe LUTS of BPH among men aged 40-80. A total of 306 eligible male patients will be recruited and assigned at a 1:1 ratio to receive either EA or SA for 24 sessions over a succession of 8 weeks, with 24 weeks of follow-up. The primary outcome will be the proportions of participants with at least 30% reduction in the International Prostate Symptom Score total score from baseline at weeks 8 and 20. All statistical analyses will be conducted in accordance with the intention-to-treat principle, and a two-tailed p value less than 0.05 will be considered statistically significant. ETHICS AND DISSEMINATION: The trial has been approved by the institutional review board of Guang'anmen Hospital (2022-203-KY), as well as other recruitment centres. Each participant will receive the detailed information of the trial, and sign the written informed consent. The results of the trial are expected to be published in a peer-reviewed journal. TRIAL REGISTRATION NUMBER: NCT05585450.


Sujet(s)
Électroacupuncture , Symptômes de l'appareil urinaire inférieur , Hyperplasie de la prostate , Qualité de vie , Adulte , Sujet âgé , Sujet âgé de 80 ans ou plus , Humains , Mâle , Adulte d'âge moyen , Chine , Électroacupuncture/méthodes , Symptômes de l'appareil urinaire inférieur/thérapie , Symptômes de l'appareil urinaire inférieur/étiologie , Études multicentriques comme sujet , Hyperplasie de la prostate/complications , Hyperplasie de la prostate/thérapie , Essais contrôlés randomisés comme sujet , Résultat thérapeutique
16.
ACS Appl Mater Interfaces ; 16(28): 36142-36156, 2024 Jul 17.
Article de Anglais | MEDLINE | ID: mdl-38968001

RÉSUMÉ

There is an urgent need to develop phototherapeutic agents with imaging capabilities to assess the treatment process and efficacy in real-time during cancer phototherapy for precision cancer therapy. The safe near-infrared (NIR) fluorescent dyes have garnered significant attention and are desirable for theranostics agents. However, until now, achieving excellent photostability and fluorescence (FL) imaging capability in aggregation-caused quenching (ACQ) dyes remains a big challenge. Here, for the only FDA-approved NIR dye, indocyanine green (ICG), we developed a dual-ferrocene (Fc) chimeric nanonetwork ICG@HFFC based on the rigid-flexible strategy through one-step self-assembly, which uses rigid Fc-modified hyaluronic acid (HA) copolymer (HA-Fc) and flexible octadecylamine (ODA) bonded Fc (Fc-C18) as the delivery system. HA-Fc reserved the ability of HA to target the CD44 receptor of the tumor cell surface, and the dual-Fc region provided a rigid space for securely binding ICG through metal-ligand interaction and π-π conjugation, ensuring excellent photostability. Additionally, the alkyl chain provided flexible confinement for the remaining ICG through hydrophobic forces, preserving its FL. Thereby, a balance is achieved between outstanding photostability and FL imaging capability. In vitro studies showed improved photobleaching resistance, enhanced FL stability, and increased singlet oxygen (1O2) production efficiency in ICG@HFFC. Further in vivo results display that ICG@HFFC had good tumor tracing ability and significant tumor inhibition which also exhibited good biocompatibility.. Therefore, ICG@HFFC provides an encouraging strategy to realize simultaneous enhanced tumor tracing and photothermal/photodynamic therapy (PTT/PDT) and offers a novel approach to address the limitations of ACQ dyes.


Sujet(s)
Composés du fer II , Acide hyaluronique , Vert indocyanine , Métallocènes , Photothérapie dynamique , Composés du fer II/composition chimique , Humains , Métallocènes/composition chimique , Animaux , Souris , Vert indocyanine/composition chimique , Vert indocyanine/usage thérapeutique , Vert indocyanine/pharmacologie , Acide hyaluronique/composition chimique , Thérapie photothermique , Femelle , Colorants fluorescents/composition chimique , Colorants fluorescents/pharmacologie , Souris de lignée BALB C , Photosensibilisants/composition chimique , Photosensibilisants/pharmacologie , Photosensibilisants/usage thérapeutique , Souris nude , Lignée cellulaire tumorale , Tumeurs/imagerie diagnostique , Tumeurs/traitement médicamenteux , Tumeurs/thérapie , Tumeurs/anatomopathologie , Antinéoplasiques/composition chimique , Antinéoplasiques/pharmacologie , Antinéoplasiques/usage thérapeutique , Nanoparticules/composition chimique , Nanoparticules/usage thérapeutique
17.
Front Immunol ; 15: 1389967, 2024.
Article de Anglais | MEDLINE | ID: mdl-38979415

RÉSUMÉ

Background: Although inflammation has been linked to nonalcoholic fatty liver disease (NAFLD), most studies have focused only on a single indicator, leading to inconsistent results. Therefore, a large prospective study that includes a variety of well-documented single and composite indicators of inflammation is needed. This study aimed to thoroughly investigate the potential associations between different systemic inflammatory indicators and NAFLD in the UK Biobank cohort. Methods: After excluding ineligible participants, 378,139 individuals were included in the study. Associations between systemic inflammatory indicators and hepatic steatosis were assessed using multivariate logistic regression. The relationships between systemic inflammatory indicators and nonalcoholic fatty liver disease were analysed using Cox proportional hazards models, and nonlinear associations were investigated using restricted cubic splines. Results: According to the cross-sectional analysis, systemic inflammatory indicators significantly correlated with hepatic steatosis. Over a median follow-up of 13.9 years, 4,145 individuals developed NAFLD. After sufficient adjustment for confounding factors, CRP levels were found to be nonlinearly positively associated with NAFLD risk (P<0.001), representing the strongest correlation among the tested relationships; lymphocyte count and the LMR showed an L-shaped correlation; monocyte count and neutrophil count showed a linear positive correlation (all P< 0.001); and the NLR, PLR, and SII showed a U-shaped correlation (all P<0.001). Conclusions: Multiple systemic inflammatory indicators are strongly associated with the development of NAFLD, and aggressive systemic inflammation management may have a favourable impact on reducing the burden of NAFLD; further randomized controlled studies are needed.


Sujet(s)
Inflammation , Stéatose hépatique non alcoolique , Humains , Stéatose hépatique non alcoolique/sang , Mâle , Femelle , Études prospectives , Adulte d'âge moyen , Inflammation/sang , Sujet âgé , Marqueurs biologiques/sang , Études transversales , Adulte , Facteurs de risque , Protéine C-réactive/analyse , Protéine C-réactive/métabolisme
18.
Histol Histopathol ; : 18788, 2024 Jul 02.
Article de Anglais | MEDLINE | ID: mdl-39041213

RÉSUMÉ

Gallbladder neuroendocrine carcinomas (GB-NECs) are a rare subtype of malignant gallbladder cancer (GBC). The genetic and molecular characteristics of GB-NECs are rarely reported. This study aims to assess the frequency of microsatellite instability (MSI) in GB-NECs and characterize their clinicopathologic and molecular features in comparison with gallbladder adenocarcinomas (GB-ADCs). Data from six patients with primary GB-NECs and 13 with GB-ADCs were collected and reevaluated. MSI assay, immunohistochemistry for mismatch repair proteins (MLH1, MSH2, MSH6, and PMS2), comprehensive genomic profiling (CGP) via next-generation sequencing (NGS), and evaluation of tumor mutation burden (TMB) were conducted on these samples. The six GB-NEC cases were all female, with a mean age of 62.0±9.2 years. Of these, two cases were diagnosed as large cell neuroendocrine carcinomas (LCNECs), while the remaining four were small cell neuroendocrine carcinomas (SCNECs). Microsatellite states observed in both GB-NECs and GB-ADCs were consistently microsatellite stable (MSS). Notably, TP53 (100%, 6/6) and RB1 (100%, 6/6) exhibited the highest mutation frequency in GB-NECs, followed by SMAD4 (50%, 3/6), GNAS (50%, 3/6), and RICTOR (33%, 2/6), with RB1, GNAS, and RICTOR specifically present in GB-NECs. Immunohistochemical (IHC) assays of p53 and Rb in the six GB-NECs were highly consistent with genetic mutations detected by targeted NGS. Moreover, no statistical difference was observed in TMB between GB-NECs and GB-ADCs (P=0.864). Although overall survival in GB-NEC patients tended to be worse than in GB-ADC patients, this difference did not reach statistical significance (P=0.119). This study has identified the microsatellite states and molecular mutation features of GB-NECs, suggesting that co-mutations in TP53 and RB1 may signify a neuroendocrine inclination in GB-NECs. The IHC assay provides an effective complement to targeted NGS for determining the functional status of p53 and Rb in clinical practice.

19.
Eur J Obstet Gynecol Reprod Biol ; 301: 12-18, 2024 Jul 26.
Article de Anglais | MEDLINE | ID: mdl-39084181

RÉSUMÉ

BACKGROUND: This study aimed to elucidate the scope and nature of adverse events (AEs) associated with Yasmin. METHODS: Among the 17,035,572 AE reports collected from the Food and Drug Administration Adverse Event Reporting System (FAERS) database between January 2004 and September 2023, 25,949 reports involved Yasmin. The demographic details, clinical outcomes, and sources of reports were extracted, and four algorithms were used to evaluate adverse drug reactions. RESULTS: The majority of the AE reports involved females aged 18-45 years. Hospitalization was the most frequently reported serious outcome (46.84 %), with death occurring in 292 patients (1.82 %). The highest number of reports originated from the United States. Adverse reactions spanned across 24 system organ categories (SOCs), and hepatobiliary, vascular, and psychiatric disorders were the most frequently reported AEs. A total of 229 Preferred Terms (PTs) were identified for adverse reactions, with high signal strength observed for conditions such as post-cholecystectomy syndrome. In addition, fear of disease, which has not been previously identified as an AE related to Yasmin, was also identified as a high signal strength side effect. CONCLUSION: The findings of the present study underscore the importance of monitoring and identifying potential AEs in patients receiving Yasmin, including those not currently listed in the medication instructions.

20.
J Colloid Interface Sci ; 675: 192-206, 2024 Dec.
Article de Anglais | MEDLINE | ID: mdl-38968636

RÉSUMÉ

Chemotherapy is a widely used cancer treatment, however, it can have notable side effects owing to the high-doses of drugs administered. Sonodynamic therapy (SDT) induced by sonosensitizers has emerged as a promising approach to treat cancer, however, there is limited research evaluating its therapeutic effects on human tumors. In this study, we introduced a dual therapy that combines low-dose chemotherapeutic drugs with enhanced sonodynamic therapy, utilizing barium titanate (BaTiO3, BTO) nanoparticles (NPs) as sonosensitizers to treat tumor organoids. We demonstrated that ultrasound could improve the cellular uptake of chemotherapy drugs, while the chemotherapeutic effect of the drugs made it easier for BTO NPs to enter tumor cells, and the dual therapy synergistically inhibited tumor cell viability. Moreover, different patient-derived tumor organoids exhibited different sensitivities to this therapy, highlighting the potential to evaluate individual responses to combination therapies prior to clinical intervention. Furthermore, this dual therapy exhibited therapeutic effects equivalent to those of high-dose chemotherapy drugs on drug-resistant tumor organoids and showed the potential to enhance the efficacy of killing drug-resistant tumors. In addition, the biosafety of the BTO NPs was successfully verified in live mice via oral administration. This evidence confirms the reliable and safe nature of the dual therapy approach, making it a feasible option for precise and personalized therapy in clinical applications.


Sujet(s)
Antinéoplasiques , Composés du baryum , Survie cellulaire , Organoïdes , Médecine de précision , Titane , Humains , Organoïdes/effets des médicaments et des substances chimiques , Organoïdes/métabolisme , Animaux , Titane/composition chimique , Titane/pharmacologie , Antinéoplasiques/composition chimique , Antinéoplasiques/pharmacologie , Souris , Composés du baryum/composition chimique , Survie cellulaire/effets des médicaments et des substances chimiques , Tests de criblage d'agents antitumoraux , Ultrasonothérapie , Nanoparticules/composition chimique , Catalyse , Relation dose-effet des médicaments , Taille de particule , Lignée cellulaire tumorale , Propriétés de surface , Prolifération cellulaire/effets des médicaments et des substances chimiques , Tumeurs/traitement médicamenteux , Tumeurs/anatomopathologie , Tumeurs/thérapie
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