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1.
NPJ Precis Oncol ; 8(1): 216, 2024 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-39353991

RESUMEN

We aimed to investigate the genomic and tumor microenvironmental (TME) profiles in non-muscle invasive bladder cancer (NMIBC) and explore potential predictive markers for Bacillus Calmette-Guérin (BCG) treatment response in high-risk NMIBC patients (according to European Association of Urology (EAU) risk stratification). 40 patients with high-risk NMIBC (cTis-T1N0M0) who underwent en bloc resection followed by BCG instillation were retrospectively enrolled. Surgical samples were subjected to Next Generation Sequencing (NGS) and multiplex immunofluorescence (mIF) assay. Genomic profiling revealed high prevalences of alterations in TERT (55%), KDM6A (32.5%), FGFR3(30%), PIK3CA (30%), TP53(27.5%) and ARID1A (20%). TME analysis showed different proportions of macrophages, NK cells, T cells subsets in tumoral and stromal compartment. Multivariate analysis identified TERT C228T and alteration in KDM6A as two independent factors associated with inferior RFS. The study comprehensively depicted the genomic and TME profiles in NMIBC and identified potential predictive biomarkers for BCG treatment.

2.
Radiol Case Rep ; 19(12): 6591-6595, 2024 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-39380813

RESUMEN

Pancreatic pseudocysts have a high amylase concentration and are surrounded by a fibrous capsule without a true epithelial lining. They are most frequently located in the peripancreatic region, and rarely extend into the mediastinum. We report a case of a 46-year-old male patient with a history of pancreatitis due to eat and drink too much presented with nausea and vomiting, MRI of the abdominal demonstrated a cystic mass connecting the abdominal cavity to posterior mediastinum and compressing the heart and stomach, ultrasound-guided aspiration of the cystic mass revealed high levels of amylase, conffrming that the mass was a rare pancreatic pseudocyst extending into the mediastinum. He was admitted for expectant management and was successfully treated with cystojejunostomy. This case aims to illustrate the possibility of rare pancreatic pseudocysts when a cystic mass is found that penetrates the abdominal and thoracic cavities.

3.
Lancet Reg Health West Pac ; 49: 101090, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39381018

RESUMEN

The development of targeted drugs in the Eastern Asia region is going through a flourishing stage. With the continuous advancement of technology and medical research, biotechnology companies and research institutions in the region have made significant progress in cancer field. The Eastern Asian region not only actively participates in clinical trials, but is also committed to developing personalized medical plans to meet the diverse genotypes and phenotypes of patients. The governments and enterprises are increasingly valuing innovation, strengthening international cooperation, and promoting drug development. This paper summarizes the development of genetic testing technology, targeted drugs approval, ongoing promising clinical trials in the field of lung cancer and the important progress made by governments in the Eastern Asian region, and proposed key factors that will contribute to the promising future prospects in the region. The targeted drug market in the Eastern Asian region is expected to drive the medical field forward.

4.
Acta Neuropathol Commun ; 12(1): 151, 2024 Sep 17.
Artículo en Inglés | MEDLINE | ID: mdl-39289779

RESUMEN

The characterization of genetic alterations in tumor samples has become standard practice for many human cancers to achieve more precise disease classification and guide the selection of targeted therapies. Cerebrospinal fluid (CSF) can serve as a source of tumor DNA in patients with central nervous system (CNS) cancer. We performed comprehensive profiling of CSF circulating tumor DNA (ctDNA) in 711 patients using an FDA-authorized platform (MSK-IMPACT™) in a hospital laboratory. We identified genetic alterations in 489/922 (53.0%) CSF samples with clinically documented CNS tumors. None of 85 CSF samples from patients without CNS tumors had detectable ctDNA. The distribution of clinically actionable somatic alterations was consistent with tumor-type specific alterations across the AACR GENIE cohort. Repeated CSF ctDNA examinations from the same patients identified clonal evolution and emergence of resistance mechanisms. ctDNA detection was associated with shortened overall survival following CSF collection. Next-generation sequencing of CSF, collected through a minimally invasive lumbar puncture in a routine hospital setting, provides clinically actionable cancer genotype information in a large fraction of patients with CNS tumors.


Asunto(s)
Neoplasias del Sistema Nervioso Central , ADN Tumoral Circulante , Humanos , ADN Tumoral Circulante/líquido cefalorraquídeo , ADN Tumoral Circulante/sangre , ADN Tumoral Circulante/genética , Neoplasias del Sistema Nervioso Central/líquido cefalorraquídeo , Neoplasias del Sistema Nervioso Central/genética , Neoplasias del Sistema Nervioso Central/sangre , Masculino , Femenino , Persona de Mediana Edad , Anciano , Adulto , Anciano de 80 o más Años , Adulto Joven , Adolescente , Biomarcadores de Tumor/líquido cefalorraquídeo , Biomarcadores de Tumor/sangre , Biomarcadores de Tumor/genética , Secuenciación de Nucleótidos de Alto Rendimiento , Niño
6.
Eur J Cancer ; 210: 114257, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39151324

RESUMEN

INTRODUCTION: No definitive answers currently exist regarding optimal first-line therapy for HER2-mutant NSCLC. Access to rapid tissue sequencing is a major barrier to precision drug development in the first-line setting. ctDNA analysis has the potential to overcome these obstacles and guide treatment. METHODS: We retrospectively analyzed patients with metastatic HER2-mutant NSCLC who underwent prospective clinical ctDNA sequencing and received systemic therapy at Memorial Sloan Kettering Cancer Center (MSK) from January 2016 to September 2022. HER2 mutations were identified by next-generation sequencing through MSK-IMPACT, MSK-ACCESS or Resolution ctDx LungTM assay. Primary endpoints were time to the next treatment (TTNT) and overall survival (OS). RESULTS: Sixty-three patients were included in the primary analysis. Chemoimmunotherapy (33/63, 52.4 %) was the predominant first-line treatment with a median TTNT of 5.1 months (95 %CI 4.1 - 6.1) whereas 55.0 % (22/40) of patients who received second-line T-DXd obtained a median TTNT of 9.2 m (95 % CI, 0-22.2). Plasma ctDNA was tested before first-line therapy in 40 patients with a median OS of 28.0 months (95 % CI 21-34), in whom 31 patients (78.0 %) had detectable ctDNA. HER2 mutations were detected on ctDNA with a median turnaround time of 13 days, occasionally co-occurred with EGFR and MET alterations and were tracked longitudinally correlating with treatment response. Patients with detectable baseline ctDNA had significantly shorter OS (hazard ratio (HR), 5.25; 95 % CI, 1.2-23.9; p = 0.019). CONCLUSION: Chemoimmunotherapy remains a major treatment option for metastatic HER2-mutant NSCLC. ctDNA can rapidly detect HER2 and co-mutations, and it has the potential to guide and monitor optimal first-line therapy. As a negative prognostic biomarker, detectable ctDNA at baseline would need to be taken into account for patient selection in future studies.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas , ADN Tumoral Circulante , Neoplasias Pulmonares , Mutación , Receptor ErbB-2 , Humanos , Femenino , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/tratamiento farmacológico , Neoplasias Pulmonares/patología , ADN Tumoral Circulante/genética , ADN Tumoral Circulante/sangre , Masculino , Persona de Mediana Edad , Receptor ErbB-2/genética , Anciano , Estudios Retrospectivos , Carcinoma de Pulmón de Células no Pequeñas/genética , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Carcinoma de Pulmón de Células no Pequeñas/patología , Adulto , Biomarcadores de Tumor/genética , Anciano de 80 o más Años
7.
Huan Jing Ke Xue ; 45(8): 4847-4859, 2024 Aug 08.
Artículo en Chino | MEDLINE | ID: mdl-39168701

RESUMEN

Studying the status and source analysis of heavy metal pollution in farmland in typical mining and processing areas is an important prerequisite for promoting farmland soil ecological restoration and farmland protection in concentrated mining areas. In this study, the heavy metal content of farmland soil around a mining area in southwest China was detected, and the pollution status, distribution law, health risks, and sources of heavy metals were studied by using the land accumulation index method, comprehensive pollution index method, kriging interpolation method, health risk assessment method, and PMF receptor model on the sampling data. The results showed that the mean values of eight heavy metals in farmland soil except Ni exceeded the local soil background values, and the results of the ground accumulation index evaluation showed that Cd and Hg were extremely polluted; Pb and As showed medium pollution-heavy pollution; and Cr, Zn, Ni, and Cu were lightly polluted. In the health risk assessment, oral ingestion was the main exposure route posing a health risk to the human body; the main element that constituted non-carcinogenic health risks was As, and the carcinogenic risks were from As and Cd. PMF model analysis showed that the contribution rate of weathering natural sources of iron-bearing ore was 28.02%, and the main factors were Ca and Fe. The contribution rate of agricultural sources was 3.02%, and the main factors were Pb and As. The contribution rate of industrial and atmospheric deposition composite sources was 33.09%, and the main factor was Hg. The contribution rate of the parent material source was 17.27%, and the main factor was Ca. The contribution rate of mining activities such as mining and smelting was 18.60%, and the main factors were Zn and Cd.


Asunto(s)
Monitoreo del Ambiente , Metales Pesados , Minería , Contaminantes del Suelo , Estaño , Metales Pesados/análisis , Contaminantes del Suelo/análisis , China , Medición de Riesgo , Estaño/análisis , Productos Agrícolas/crecimiento & desarrollo
8.
Cell Rep ; 43(8): 114613, 2024 Aug 27.
Artículo en Inglés | MEDLINE | ID: mdl-39116206

RESUMEN

Leptomeningeal metastases (LMs) remain a devastating complication of non-small cell lung cancer (NSCLC), particularly following osimertinib resistance. We conducted single-cell RNA sequencing on cerebrospinal fluid (CSF) from EGFR-mutant NSCLC with central nervous system metastases. We found that macrophages of LMs displayed functional and phenotypic heterogeneity and enhanced immunosuppressive properties. A population of lipid-associated macrophages, namely RNASE1_M, were linked to osimertinib resistance and LM development, which was regulated by Midkine (MDK) from malignant epithelial cells. MDK exhibited significant elevation in both CSF and plasma among patients with LMs, with higher MDK levels correlating to poorer outcomes in an independent cohort. Moreover, MDK could promote macrophage M2 polarization with lipid metabolism and phagocytic function. Furthermore, malignant epithelial cells in CSF, particularly after resistance to osimertinib, potentially achieved immune evasion through CD47-SIRPA interactions with RNASE1_M. In conclusion, we revealed a specific subtype of macrophages linked to osimertinib resistance and LM development, providing a potential target to overcome LMs.


Asunto(s)
Acrilamidas , Compuestos de Anilina , Carcinoma de Pulmón de Células no Pequeñas , Resistencia a Antineoplásicos , Neoplasias Pulmonares , Macrófagos , Carcinoma de Pulmón de Células no Pequeñas/patología , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Carcinoma de Pulmón de Células no Pequeñas/genética , Humanos , Neoplasias Pulmonares/patología , Neoplasias Pulmonares/tratamiento farmacológico , Compuestos de Anilina/farmacología , Compuestos de Anilina/uso terapéutico , Acrilamidas/farmacología , Acrilamidas/uso terapéutico , Macrófagos/metabolismo , Macrófagos/efectos de los fármacos , Animales , Ratones , Línea Celular Tumoral , Femenino , Carcinomatosis Meníngea/tratamiento farmacológico , Carcinomatosis Meníngea/patología , Carcinomatosis Meníngea/secundario , Metabolismo de los Lípidos/efectos de los fármacos , Antígeno CD47/metabolismo , Antígeno CD47/genética , Masculino , Fagocitosis/efectos de los fármacos , Receptores ErbB/metabolismo , Receptores ErbB/genética , Indoles , Pirimidinas
9.
Foodborne Pathog Dis ; 2024 Aug 12.
Artículo en Inglés | MEDLINE | ID: mdl-39133119

RESUMEN

Toxoplasma gondii is a widespread protozoan parasite approximately infecting one-third of the world population and can cause serious public health problems. In this study, we investigated the protective effect of the attenuated vaccine Pru:Δcdpk2 against acute toxoplasmosis and explored the underlying immune mechanisms of the protection in pigs. The systemic T-cell and natural killer (NK) cell responses were analyzed, including kinetics, phenotype, and multifunctionality (interferon [IFN]-γ, tumor necrosis factor [TNF]-α), and the IFN-γ levels were analyzed in PBMCs. Our results showed that T. gondii-specific antibodies were induced by Pru:Δcdpk2. After challenging with RH, the antibodies were able to respond quickly in the immunized group, and the expression level was significantly higher than that in the unimmunized group. The expression level of IFN-γ significantly increased after vaccination, and the CD3+ γδ-, NK, and CD3+ γδ+ cell subsets also significantly increased. At the same time, functional analysis indicated that these cells were polarized toward a Th1 phenotype, showing the ability to secrete IFN-γ and TNF-α. The CD4+CD8α-T cell population exhibited a higher frequency of IFN-γ+ producing cells compared with the CD4-CD8α+ and CD4+CD8α+ cell populations during the early days of vaccination. Our results indicated that the attenuated vaccine could induce the expression of NK, γδ, and CD3αß cells in pigs, and IFN-γ and TNF-α secreted by these cells are important for resistance to T. gondii infection.

10.
Res Pract Thromb Haemost ; 8(4): 102443, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38993621

RESUMEN

Background: Salvianolic acid B (SAB) is a major component of Salvia miltiorrhiza root (Danshen), widely used in East/Southeast Asia for centuries to treat cardiovascular diseases. Danshen depside salt, 85% of which is made up of SAB, is approved in China to treat chronic angina. Although clinical observations suggest that Danshen extracts inhibited arterial and venous thrombosis, the exact mechanism has not been adequately elucidated. Objective: To delineate the antithrombotic mechanisms of SAB. Methods: We applied platelet aggregation and coagulation assays, perfusion chambers, and intravital microscopy models. The inhibition kinetics and binding affinity of SAB to thrombin are measured by thrombin enzymatic assays, intrinsic fluorescence spectrophotometry, and isothermal titration calorimetry. We used molecular in silico docking models to predict the interactions of SAB with thrombin. Results: SAB dose-dependently inhibited platelet activation and aggregation induced by thrombin. SAB also reduced platelet aggregation induced by adenosine diphosphate and collagen. SAB attenuated blood coagulation by modifying fibrin network structures and significantly decreased thrombus formation in mouse cremaster arterioles and perfusion chambers. The direct SAB-thrombin interaction was confirmed by enzymatic assays, intrinsic fluorescence spectrophotometry, and isothermal titration calorimetry. Interestingly, SAB shares key structural similarities with the trisubstituted benzimidazole class of thrombin inhibitors, such as dabigatran. Molecular docking models predicted the binding of SAB to the thrombin active site. Conclusion: Our data established SAB as the first herb-derived direct thrombin catalytic site inhibitor, suppressing thrombosis through both thrombin-dependent and thrombin-independent pathways. Purified SAB may be a cost-effective agent for treating arterial and deep vein thrombosis.

11.
Lancet Respir Med ; 12(9): 671-680, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39059398

RESUMEN

BACKGROUND: Currently approved targeted treatment for ROS1-rearranged non-small-cell lung cancer (NSCLC) has either inadequate intracranial activity or CNS-related toxicities. We evaluated the efficacy and safety of foritinib, a novel ALK and ROS1 inhibitor, in patients with advanced ROS1-rearranged NSCLC. METHODS: This two-part (phase 2a and 2b), multicentre, single-arm, open-label, phase 2 study was done in 29 centres in China. Eligible participants were adults (aged ≥18 years) with histologically or cytologically confirmed ROS1-rearranged, locally advanced or metastatic stage IIIB-IV NSCLC, with an Eastern Cooperative Oncology Group performance status of 2 or less. Patients who had previously received no or one ROS1 inhibitor were enrolled into phase 2a, and patients who were naive to ROS1 inhibitor therapy were enrolled into phase 2b cohort 1. Participants in phase 2a received 80, 120, 160, or 210 mg foritinib succinate (foritinib) orally once daily over 21-day cycles; patients in phase 2b received the recommended phase 2 dose of 160 mg. The primary endpoint was objective response rate, assessed by the independent review committee in the full analysis set (ie, all participants who received at least one dose of study treatment). The safety analysis set included all participants who received at least one dose of study treatment and had available safety assessments. This study is ongoing and is registered with ClinicalTrials.gov, NCT04237805. FINDINGS: Between March 26, 2020, and Dec 29, 2022, 104 patients were enrolled and treated. Six patients who had previously received more than one ROS1 inhibitor were enrolled in phase 2a before a protocol amendment stating that patients in this phase should have received no more than one ROS1 inhibitor; these patients were included in the safety analysis but excluded from the efficacy analysis of the ROS1-inhibitor-pretreated cohort. Therefore, the efficacy analysis set (n=98) included 42 patients from phase 2a (17 who were ROS1 inhibitor naive and 25 who had previously received ROS1 inhibitor) and 56 patients from phase 2b cohort 1. In phase 2a, the objective response rate was 94% (95% CI 71-100; 16 of 17 patients) in patients who were ROS1 inhibitor naive and 40% (21-61; ten of 25) in patients who had previously received ROS1 inhibitor. In phase 2b cohort 1, the objective response rate was 88% (95% CI 76-95; 49 of 56 patients). In a prespecified exploratory analysis in 41 patients with CNS metastases at baseline, the objective response rate was 100% (95% CI 48-100; five of five patients) in patients in phase 2a who were ROS1 inhibitor naive, 40% (16-68; six of 15) in patients in phase 2a who had previously received ROS1 inhibitor, and 90% (70-99; 19 of 21) in patients in phase 2b cohort 1. Grade 3-4 treatment-related adverse events occurred in 33 (32%) of 104 patients; the most common were hyperglycaemia (12 [12%] patients) and electrocardiogram prolonged QT interval (six [6%]). Serious treatment-related adverse events occurred in 11 (11%) patients, with hyperglycaemia (six [6%]) being most common. No treatment-related adverse events led to death. INTERPRETATION: Foritinib showed systemic and intracranial antitumour activity and good tolerability in ROS1-inhibitor-naive patients with ROS1-rearranged NSCLC. Foritinib represents a promising treatment for these patients, especially in those with CNS metastases. FUNDING: Fosun Pharma, Wanbang Biopharmaceuticals, and Guangdong Provincial Key Lab of Translational Medicine in Lung Cancer.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas , Neoplasias Pulmonares , Proteínas Tirosina Quinasas , Proteínas Proto-Oncogénicas , Humanos , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Carcinoma de Pulmón de Células no Pequeñas/genética , Carcinoma de Pulmón de Células no Pequeñas/patología , Masculino , Femenino , Persona de Mediana Edad , Neoplasias Pulmonares/tratamiento farmacológico , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/patología , Proteínas Proto-Oncogénicas/genética , Proteínas Tirosina Quinasas/antagonistas & inhibidores , Anciano , China , Adulto , Reordenamiento Génico , Resultado del Tratamiento , Inhibidores de Proteínas Quinasas/uso terapéutico , Inhibidores de Proteínas Quinasas/efectos adversos , Inhibidores de Proteínas Quinasas/administración & dosificación
12.
Front Med (Lausanne) ; 11: 1422895, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39050537

RESUMEN

Laparoscopic surgery is extensively applied in the treatment of hepatobiliary diseases. Hepatic artery pseudoaneurysm (HAP) is a rare complication following hepatic biliary surgery through laparoscopy. The clinical manifestations of HAP are diverse and can be fatal. Given its severity, rapid assessment and management are crucial to ensuring a good prognosis. Here, we report three cases of HAP; two underwent laparoscopic surgery due to cholelithiasis, and another caused by trauma. The first case exhibited a pseudoaneurysm involving the distal portion of the right hepatic artery main trunk. The second patient had a pseudoaneurysm at the bifurcation of the left and right hepatic arteries. The third case involved a patient with a pseudoaneurysm involving a branch of the right hepatic artery. The main clinical manifestations of all three cases were bleeding from the biliary tract (the first two cases showed postoperative bleeding in the T-tube, while the third case exhibited gastrointestinal bleeding). The final diagnosis was obtained through digital subtraction angiography. The three patients underwent successful transcatheter arterial embolization operation and a follow-up revealed they were disease-free and alive. This article aims to highlight a rare complication of laparoscopic hepatobiliary surgery and share our experience in early diagnosis and treatment of HAP.

13.
Int J Ophthalmol ; 17(7): 1273-1282, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39026905

RESUMEN

AIM: To evaluate the trending visual performance of different intraocular lenses (IOLs) over time after implantation. METHODS: Ninety-one patients received cataract surgery with implantations of monofocal (Mon) IOLs, segmental refractive (SegRef) IOLs, diffractive (Dif) IOLs, and extended-depth-of-focus (EDoF) IOLs were included. The aberrations and optical quality collected with iTrace and OQAS within postoperative 6mo were followed and compared. RESULTS: Most of the visual parameters improved over the postoperative 6mo. The postoperative visual acuity (POVA) of the Mon IOL, SegRef IOL, and EDoF IOL groups achieved relative stability in earlier states compared with the Dif IOL group. Nevertheless, the overall visual performance of the 3 IOLs continued to upturn in small extents within the postoperative 6mo. The optical quality initially improved in the EDoF IOL group, then in the Mon IOL, SegRef IOL, and Dif IOL groups. POVA and objective visual performance of the Mon IOL and EDoF IOL groups, as well as POVA and visual quality of the Dif IOL group, improved in the postoperative 1mo and stabilized. Within the postoperative 6mo, gradual improvements were observed in the visual acuity and objective visual performance of the SegRef IOL group, as well as in the postoperative optical quality of the Dif IOL group. CONCLUSION: The visual performance is different among eyes implanted with different IOLs. The findings of the current study provide a potential reference for ophthalmologists to choose suitable IOLs for cataract patients in a personalized solution.

14.
JAMA Oncol ; 10(7): 932-940, 2024 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-38869865

RESUMEN

Importance: Uninterrupted targeted therapy until disease progression or intolerable toxic effects is currently the routine therapy for advanced non-small cell lung cancer (NSCLC) involving driver gene variations. However, drug resistance is inevitable. Objective: To assess the clinical feasibility of adaptive de-escalation tyrosine kinase inhibitor (TKI) treatment guided by circulating tumor DNA (ctDNA) for achieving complete remission after local consolidative therapy (LCT) in patients with advanced NSCLC. Design, Setting, and Participants: This prospective nonrandomized controlled trial was conducted at a single center from June 3, 2020, to July 19, 2022, and included 60 patients with advanced NSCLC with driver variations without radiologically detectable disease after TKI and LCT. The median (range) follow-up time was 19.2 (3.8-29.7) months. Data analysis was conducted from December 15, 2022, to May 10, 2023. Intervention: Cessation of TKI treatment and follow-up every 3 months. Treatment was restarted in patients with progressive disease (defined by the Response Evaluation Criteria in Solid Tumors 1.1 criteria), detectable ctDNA, or elevated carcinoembryonic antigen (CEA) levels, whichever manifested first, and treatment ceased if all indicators were negative during follow-up surveillance. Main Outcomes and Measures: Progression-free survival (PFS). Secondary end points were objective response rate, time to next treatment, and overall survival. Results: Among the total study sample of 60 participants (median [range] age, 55 [21-75] years; 33 [55%] were female), the median PFS was 18.4 (95% CI, 12.6-24.2) months and the median (range) total treatment break duration was 9.1 (1.5-28.1) months. Fourteen patients (group A) remained in TKI cessation with a median (range) treatment break duration of 20.3 (6.8-28.1) months; 31 patients (group B) received retreatment owing to detectable ctDNA and/or CEA and had a median PFS of 20.2 (95% CI, 12.9-27.4) months with a median (range) total treatment break duration of 8.8 (1.5-20.6) months; and 15 patients (group C) who underwent retreatment with TKIs due to progressive disease had a median PFS of 5.5 (95% CI, 1.5-7.2) months. For all participants, the TKI retreatment response rate was 96%, the median time to next treatment was 29.3 (95% CI, 25.3-35.2) months, and the data for overall survival were immature. Conclusions and Relevance: The findings of this nonrandomized controlled trial suggest that this adaptive de-escalation TKI strategy for patients with NSCLC is feasible in those with no lesions after LCT and a negative ctDNA test result. This might provide a de-escalation treatment strategy guided by ctDNA for the subset of patients with advanced NSCLC. Trial Registration: ClinicalTrials.gov Identifier: NCT03046316.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas , ADN Tumoral Circulante , Neoplasias Pulmonares , Inhibidores de Proteínas Quinasas , Humanos , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Carcinoma de Pulmón de Células no Pequeñas/genética , Carcinoma de Pulmón de Células no Pequeñas/patología , Femenino , Masculino , ADN Tumoral Circulante/sangre , ADN Tumoral Circulante/genética , Neoplasias Pulmonares/tratamiento farmacológico , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/patología , Persona de Mediana Edad , Anciano , Adulto , Inhibidores de Proteínas Quinasas/uso terapéutico , Inhibidores de Proteínas Quinasas/administración & dosificación , Estudios Prospectivos , Terapia Molecular Dirigida/métodos
15.
J Nanobiotechnology ; 22(1): 361, 2024 Jun 23.
Artículo en Inglés | MEDLINE | ID: mdl-38910236

RESUMEN

Recently, environmental temperature has been shown to regulate bone homeostasis. However, the mechanisms by which cold exposure affects bone mass remain unclear. In our present study, we observed that exposure to cold temperature (CT) decreased bone mass and quality in mice. Furthermore, a transplant of exosomes derived from the plasma of mice exposed to cold temperature (CT-EXO) can also impair the osteogenic differentiation of BMSCs and decrease bone mass by inhibiting autophagic activity. Rapamycin, a potent inducer of autophagy, can reverse cold exposure or CT-EXO-induced bone loss. Microarray sequencing revealed that cold exposure increases the miR-25-3p level in CT-EXO. Mechanistic studies showed that miR-25-3p can inhibit the osteogenic differentiation and autophagic activity of BMSCs. It is shown that inhibition of exosomes release or downregulation of miR-25-3p level can suppress CT-induced bone loss. This study identifies that CT-EXO mediates CT-induced osteoporotic effects through miR-25-3p by inhibiting autophagy via targeting SATB2, presenting a novel mechanism underlying the effect of cold temperature on bone mass.


Asunto(s)
Autofagia , Frío , Exosomas , Ratones Endogámicos C57BL , MicroARNs , Osteogénesis , Animales , Autofagia/efectos de los fármacos , Ratones , Exosomas/metabolismo , MicroARNs/metabolismo , MicroARNs/genética , Osteogénesis/efectos de los fármacos , Células Madre Mesenquimatosas/metabolismo , Osteoporosis/patología , Diferenciación Celular/efectos de los fármacos , Huesos/metabolismo , Femenino , Densidad Ósea , Sirolimus/farmacología
16.
Front Immunol ; 15: 1395047, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38694500

RESUMEN

The emergence of resistance to prostate cancer (PCa) treatment, particularly to androgen deprivation therapy (ADT), has posed a significant challenge in the field of PCa management. Among the therapeutic options for PCa, radiotherapy, chemotherapy, and hormone therapy are commonly used modalities. However, these therapeutic approaches, while inducing apoptosis in tumor cells, may also trigger stress-induced premature senescence (SIPS). Cellular senescence, an entropy-driven transition from an ordered to a disordered state, ultimately leading to cell growth arrest, exhibits a dual role in PCa treatment. On one hand, senescent tumor cells may withdraw from the cell cycle, thereby reducing tumor growth rate and exerting a positive effect on treatment. On the other hand, senescent tumor cells may secrete a plethora of cytokines, growth factors and proteases that can affect neighboring tumor cells, thereby exerting a negative impact on treatment. This review explores how radiotherapy, chemotherapy, and hormone therapy trigger SIPS and the nuanced impact of senescent tumor cells on PCa treatment. Additionally, we aim to identify novel therapeutic strategies to overcome resistance in PCa treatment, thereby enhancing patient outcomes.


Asunto(s)
Senescencia Celular , Resistencia a Antineoplásicos , Neoplasias de la Próstata , Humanos , Senescencia Celular/efectos de los fármacos , Masculino , Neoplasias de la Próstata/tratamiento farmacológico , Neoplasias de la Próstata/patología , Neoplasias de la Próstata/terapia , Neoplasias de la Próstata/metabolismo , Animales
17.
Cancer Immunol Immunother ; 73(7): 125, 2024 May 11.
Artículo en Inglés | MEDLINE | ID: mdl-38733402

RESUMEN

BACKGROUND: Despite the success of PD-1 blockade in recurrent/metastatic nasopharyngeal carcinoma (NPC), its effect for locoregionally advanced NPC (LANPC) remains unclear. This study aimed to evaluate the benefit of adding PD-1 blockade to the current standard treatment (gemcitabine and cisplatin IC  plus cisplatin CCRT ) for LANPC patients. METHODS: From January 2020 to November 2022, 347 patients with non-metastatic high-risk LANPC (stage III-IVA, excluding T3-4N0) were included. Of the 347 patients, 268 patients were treated with standard treatment (IC-CCRT), and 79 received PD-1 blockade plus IC-CCRT (PD-1 group). For the PD-1 group, PD-1 blockade was given intravenously once every 3 weeks for up to 9 cycles (3 induction and 6 adjuvant). The primary endpoint was disease-free survival (DFS) (i.e. freedom from local/regional/distant failure or death). The propensity score matching (PSM) with the ratio of 1:2 was performed to control confounding factors. RESULTS: After PSM analysis, 150 patients receiving standard treatment and 75 patients receiving additional PD-1 blockade remained in the current analysis. After three cycles of IC, the PD-1 group had significantly higher rates of complete response (defined as disappearance of all target lesions; 24% vs. 9%; P = 0.006) and complete biological response (defined as undetectable cell-free Epstein-Barr virus DNA, cfEBV DNA; 79% vs. 65%; P = 0.046) than that in the standard group. And the incidence of grade 3-4 toxicity during IC was 47% in the PD-1 group and 41% in the standard group, with no significant difference (P = 0.396). During follow-up period, additional PD-1 blockade to standard treatment improved 3-year DFS from 84 to 95%, with marginal statistical significance (HR, 0.28; 95%CI, 0.06-1.19; P = 0.064). CONCLUSION: Additiaonl PD-1 blockade to gemcitabine and cisplatin IC and adjuvant treatment results in significant improvement in tumor regression, cfEBV DNA clearance, superior DFS, and comparable toxicity profiles in high-risk LANPC patients.


Asunto(s)
Quimioradioterapia , Quimioterapia de Inducción , Carcinoma Nasofaríngeo , Neoplasias Nasofaríngeas , Puntaje de Propensión , Humanos , Masculino , Femenino , Carcinoma Nasofaríngeo/terapia , Carcinoma Nasofaríngeo/mortalidad , Carcinoma Nasofaríngeo/tratamiento farmacológico , Persona de Mediana Edad , Quimioradioterapia/métodos , Adulto , Neoplasias Nasofaríngeas/terapia , Neoplasias Nasofaríngeas/mortalidad , Neoplasias Nasofaríngeas/tratamiento farmacológico , Quimioterapia de Inducción/métodos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Receptor de Muerte Celular Programada 1/antagonistas & inhibidores , Inhibidores de Puntos de Control Inmunológico/uso terapéutico , Anciano , Cisplatino/uso terapéutico , Cisplatino/administración & dosificación , Cisplatino/efectos adversos , Desoxicitidina/análogos & derivados , Desoxicitidina/uso terapéutico , Desoxicitidina/administración & dosificación , Estudios Retrospectivos , Gemcitabina
18.
Cancer Cell ; 42(5): 727-731, 2024 May 13.
Artículo en Inglés | MEDLINE | ID: mdl-38701791

RESUMEN

As immunotherapy makes its way into the perioperative setting, a growing number of clinical trials are expanding the evidence base for resectable non-small cell lung cancer (NSCLC) management. Identifying the optimal treatment pattern-whether it's neoadjuvant, adjuvant, or a combination of both-is a crucial next step, particularly in pinpointing which patients benefit the most. This decision-making process requires a multi-disciplinary treatment team capable of utilizing tissue and plasma genomic testing to inform therapeutic choices. Leveraging the perioperative treatment platform, it remains pivotal to integrate circulating tumor DNA (ctDNA) monitoring into clinical trial design efficiently and provide clear guidance on treatment.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas , Inmunoterapia , Neoplasias Pulmonares , Humanos , Biomarcadores de Tumor/genética , Carcinoma de Pulmón de Células no Pequeñas/inmunología , Carcinoma de Pulmón de Células no Pequeñas/terapia , Carcinoma de Pulmón de Células no Pequeñas/genética , ADN Tumoral Circulante/sangre , ADN Tumoral Circulante/genética , Ensayos Clínicos como Asunto , Inmunoterapia/métodos , Neoplasias Pulmonares/inmunología , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/terapia , Terapia Neoadyuvante/métodos
19.
Phytochemistry ; 223: 114132, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38714288

RESUMEN

Honokiol (HK) and magnolol (MAG) are typical representatives of neolignans possessing a wide range of biological activities and are employed as traditional medicines in Asia. In the past few decades, HK and MAG have been proven to be promising chemical scaffolds for the development of novel neolignan drugs. This review focuses on recent advances in the medicinal chemistry of HK and MAG derivatives, especially their structure-activity relationships. In addition, it also presents a comprehensive summary of the pharmacology, biosynthetic pathways, and metabolic characteristics of HK and MAG. This review can provide pharmaceutical chemists deeper insights into medicinal research on HK and MAG, and a reference for the rational design of HK and MAG derivatives.


Asunto(s)
Compuestos de Bifenilo , Lignanos , Lignanos/química , Lignanos/farmacología , Compuestos de Bifenilo/antagonistas & inhibidores , Compuestos de Bifenilo/farmacología , Compuestos de Bifenilo/química , Relación Estructura-Actividad , Humanos , Estructura Molecular , Compuestos Alílicos , Fenoles
20.
Exp Hematol Oncol ; 13(1): 47, 2024 Apr 25.
Artículo en Inglés | MEDLINE | ID: mdl-38664743

RESUMEN

Enhanced cellular therapy has emerged as a novel concept following the basis of cellular therapy. This treatment modality applied drugs or biotechnology to directly enhance or genetically modify cells to enhance the efficacy of adoptive cellular therapy (ACT). Drugs or biotechnology that enhance the killing ability of immune cells include immune checkpoint inhibitors (ICIs) / antibody drugs, small molecule inhibitors, immunomodulatory factors, proteolysis targeting chimera (PROTAC), oncolytic virus (OV), etc. Firstly, overcoming the inhibitory tumor microenvironment (TME) can enhance the efficacy of ACT, which can be achieved by blocking the immune checkpoint. Secondly, cytokines or cytokine receptors can be expressed by genetic engineering or added directly to adoptive cells to enhance the migration and infiltration of adoptive cells to tumor cells. Moreover, multi-antigen chimeric antigen receptors (CARs) can be designed to enhance the specific recognition of tumor cell-related antigens, and OVs can also stimulate antigen release. In addition to inserting suicide genes into adoptive cells, PROTAC technology can be used as a safety switch or degradation agent of immunosuppressive factors to enhance the safety and efficacy of adoptive cells. This article comprehensively summarizes the mechanism, current situation, and clinical application of enhanced cellular therapy, describing potential improvements to adoptive cellular therapy.

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