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1.
BMC Cancer ; 24(1): 372, 2024 Mar 25.
Artículo en Inglés | MEDLINE | ID: mdl-38528507

RESUMEN

BACKGROUND: Epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) recommended for the patients with subsolid nodule in early lung cancer stage is not routinely. The clinical value and impact in patients with EGFR mutation on survival outcomes is further needed to be elucidated to decide whether the application of EGFR-TKIs was appropriate in early lung adenocarcinoma (LUAD) stage appearing as subsolid nodules. MATERIALS AND METHODS: The inclusion of patients exhibiting clinical staging of IA-IIB subsolid nodules. Clinical information, computed tomography (CT) features before surgical resection and pathological characteristics including tertiary lymphoid structures of the tumors were recorded for further exploration of correlation with EGFR mutation and prognosis. RESULTS: Finally, 325 patients were enrolled into this study, with an average age of 56.8 ± 9.8 years. There are 173 patients (53.2%) harboring EGFR mutation. Logistic regression model analysis showed that female (OR = 1.944, p = 0.015), mix ground glass nodule (OR = 2.071, p = 0.003, bubble-like lucency (OR = 1.991, p = 0.003) were significant risk factors of EGFR mutations. Additionally, EGFR mutations were negatively correlated with TLS presence and density. Prognosis analysis showed that the presence of TLS was associated with better recurrence-free survival (RFS)(p = 0.03) while EGFR mutations were associated with worse RFS(p = 0.01). The RFS in patients with TLS was considerably excel those without TLS within EGFR wild type group(p = 0.018). Multivariate analyses confirmed that EGFR mutation was an independent prognostic predictor for RFS (HR = 3.205, p = 0.037). CONCLUSIONS: In early-phase LUADs, subsolid nodules with EGFR mutation had specific clinical and radiological signatures. EGFR mutation was associated with worse survival outcomes and negatively correlated with TLS, which might weaken the positive impact of TLS on prognosis. Highly attention should be paid to the use of EGFR-TKI for further treatment as agents in early LUAD patients who carrying EGFR mutation.


Asunto(s)
Adenocarcinoma del Pulmón , Neoplasias Pulmonares , Estructuras Linfoides Terciarias , Humanos , Femenino , Persona de Mediana Edad , Anciano , Estudios Retrospectivos , Adenocarcinoma del Pulmón/diagnóstico por imagen , Adenocarcinoma del Pulmón/tratamiento farmacológico , Adenocarcinoma del Pulmón/genética , Neoplasias Pulmonares/diagnóstico por imagen , Neoplasias Pulmonares/tratamiento farmacológico , Neoplasias Pulmonares/genética , Pronóstico , Mutación , Receptores ErbB/genética , Receptores ErbB/uso terapéutico
2.
BMC Cancer ; 23(1): 203, 2023 Mar 03.
Artículo en Inglés | MEDLINE | ID: mdl-36869304

RESUMEN

BACKGROUND: With the application of immune checkpoint inhibitors (ICIs) in cancer treatment, more and more attention has been paid to checkpoint inhibitor-related pneumonitis (CIP), which requires a better understanding of its clinical characteristics and therapeutic effects. METHODS: The clinical and imaging data of 704 patients with non-small cell lung cancer (NSCLC) who received immunotherapy were analyzed retrospectively; the clinical characteristics of CIP were summarized, and the therapeutic regimens and effects of the patients were summarized. RESULTS: 36 CIP patients were included in the research. The most common clinical symptoms were cough, shortness of breath and fever. The CT manifestations were summarized as follows: Organizing pneumonia (OP) in 14 cases (38.9%), nonspecific interstitial pneumonia (NSIP) in 14 cases (38.9%), hypersensitiviy pneumonitis(HP) in 2 cases (6.3%), diffuse alveolar damage in 1 case (3.1%) and atypical imaging manifestations in 5 cases (13.9%). 35 cases received glucocorticoid therapy, 6 patients were treated with gamma globulin and 1 patient was treated with tocilizumab. There were no deaths in CIP G1-2 patients and 7 deaths occured in CIP G3-4 patients. 4 patients were treated again with ICIs. CONCLUSION: We found that glucocorticoid 1-2 mg/kg was effective for most patients with moderate to severe CIP, and a few patients with hormone insensitivity needed early immunosuppressive therapy. A few patients can be rechallenged with ICIs, but CIP recurrence needs to be closely monitored.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas , Neoplasias Pulmonares , Neumonía , Humanos , Glucocorticoides , Estudios Retrospectivos
3.
BMC Infect Dis ; 23(1): 174, 2023 Mar 22.
Artículo en Inglés | MEDLINE | ID: mdl-36949406

RESUMEN

BACKGROUND: Human adenovirus (HAdV) infection outbreak causes community-acquired pneumonia. Cellular immune dysfunction and hypercytokinemia play important roles in the pathogenesis of adenovirus respiratory infection. Some soluble factors in peripheral blood can assist in judging the virus-induced disease severity. The expression levels of inflammatory cytokines differ among patients with different disease severity. However, whether and how HAdV-7 infection influences the composition of blood immune cells and serum cytokine levels in patients at different disease stages, as well as the diagnosis values of these parameters, have rarely been intensively studied. We aimed to investigate lymphocytes profiles and cytokines levels in blood of patients at different disease stages upon human adenovirus type 7 (HAdV-7) infections, and explored the diagnosis values of the investigated parameters. METHODS: Patients from two outbreaks of HAdV-7 in military of China were categorized into upper respiratory infection (URI) group, common pneumonia (CP) group and severe pneumonia (SP) group according to disease severity. Peripheral blood samples were subjected to routine laboratory tests, while flow cytometry and ELISA were used to measure the lymphocyte subsets and cytokines in blood, respectively. The receiver operating characteristic (ROC) curves were performed to examine the diagnostic of these blood parameters. RESULTS: Signs of imbalanced lymphocytes composition and hypercytokinemia were observed in HAdV-7-infected patients. The percentages of CD3+ T cells and NK cells were significantly decreased along with the aggravation of the disease, particularly for NK cells and CD4+ T cells. The neutrophil to lymphocyte ratio (NLR) increased significantly in patients with more severe disease. In addition, the levels of serum CXCL10, IL-2 and TNF-α were positively correlated with disease severity, while reduced levels of IFN-γ and IL-10 were found in SP patients. Furthermore, analysis of ROC showed that multiple parameters including the percentage of blood CD3+ cells and serum CXCL10 level could predict the progression of HAdV-7 infection. CONCLUSION: Imbalance of immune state with hypercytokinemia occurred during HAdV-7 infection. The percentages of blood immune cells such as CD3+ T cells and the levels of serum cytokines such as CXCL10 showed potential diagnosis values in HAdV-7 infection.


Asunto(s)
Infecciones por Adenoviridae , Infecciones por Adenovirus Humanos , Adenovirus Humanos , Neumonía , Infecciones del Sistema Respiratorio , Humanos , Citocinas , Síndrome de Liberación de Citoquinas , Linfocitos/patología , Infecciones por Adenoviridae/epidemiología , Infecciones por Adenovirus Humanos/epidemiología , Infecciones del Sistema Respiratorio/epidemiología
4.
BMC Cancer ; 22(1): 919, 2022 Aug 25.
Artículo en Inglés | MEDLINE | ID: mdl-36008784

RESUMEN

OBJECTIVES: There are increasing numbers of studies of pleural tags (PTs). The purpose of this case series was to classify the PTs in patients with peripheral pulmonary adenocarcinoma based on radiologic-pathologic comparison and to study the prognosis. METHODS: The clinical, imaging, pathological and prognostic data of 161 patients with peripheral pulmonary adenocarcinoma in three hospitals were analyzed retrospectively. We classified PTs using computed tomography (CT) for pathologic comparison. RESULTS: According to the relationship between tumors and pleural on CT images, PTs were classified into four types: type 1, one or more linear pleural tag; type 2, one or more linear pleural tag with soft tissue component at the pleural end; type 3, one soft tissue cord-like pleural tag; type 4, directly abutting the visceral pleura, pulling or pushing the visceral pleura. In these PTs, the incidence of visceral pleural invasion (VPI) was high in type 2 (46.88%) and type 3 (56.41%) of PTs. Our prognostic analysis showed that micropapillary or solid histological subtype (HR = 5.766, 95% CI: 1.435-23.159, P = 0.014) and type 3 of PTs (HR = 11.058, 95% CI: 1.349-90.623, P = 0.025) were two independent risk factors for tumor progression. CONCLUSIONS: PT is a risk factor for poor prognosis in patients with peripheral pulmonary adenocarcinoma, the presence of which on CT images can remind us to provide patients with a more reasonable treatment.


Asunto(s)
Adenocarcinoma del Pulmón , Adenocarcinoma , Neoplasias Pulmonares , Adenocarcinoma/diagnóstico por imagen , Adenocarcinoma/patología , Adenocarcinoma del Pulmón/diagnóstico por imagen , Adenocarcinoma del Pulmón/patología , Humanos , Neoplasias Pulmonares/diagnóstico por imagen , Neoplasias Pulmonares/patología , Invasividad Neoplásica/patología , Estadificación de Neoplasias , Pleura/diagnóstico por imagen , Pleura/patología , Pronóstico , Estudios Retrospectivos
5.
Med Mycol ; 60(7)2022 Jul 08.
Artículo en Inglés | MEDLINE | ID: mdl-35641230

RESUMEN

Azoles were used as the primary antifungal agents to treat the Cryptococcus gattii infection. Evidence showed that subtypes of C. gattii respond differently to azoles, but the mechanism is largely elusive. In this study, we aimed to find the mechanisms of differences in azole drug susceptibility in different subtypes of C. gattii. Eight clinical strains of C. gattii were collected for molecular typing, multilocus sequence typing (MLST) analysis, and antifungal susceptibility testing. Based on drug susceptibility differences, the RNA sequencing data were analyzed to find candidate azole drug susceptibility genes, and qPCR validation was performed. Five VGI subtypes and three VGII subtypes were identified among the eight strains of C. gattii. The clinical isolates showed high genetic diversity, and seven sequence types (STs) were identified. The geometric mean (GM) of minimum inhibitory concentration (MIC) for fluconazole, voriconazole, and itraconazole of VGI subtype was significantly lower than that of VGII subtype, and genes related to transporter activities were differentially expressed between VGI and VGII strains. The results of the Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis showed that the DEGs (differential expressed genes) were found to be enriched in multiple ABC transporters. We further performed qPCR to quantify the expression level of seven ABC transporters. We found that ABC transporters ATM1, MDR1, PDR5, PDR5-3, and PXA2 were expressed significantly higher in VGII strains than in VGI strains. Our work revealed four novel ABC transporters, ATM1, PDR5, PDR5-3, and PXA2, promising candidate targets regulating azole susceptibility in C. gattii strains. LAY SUMMARY: Azoles were used as the primary antifungal agents for treating Cryptococuss gattii infection. Since subtypes of C. gattii respond differently to azoles. We analyzed mRNA expression profiles of different subtypes and identified four ABC transporters that could be potential genes regulating azole sensitivity.


Asunto(s)
Criptococosis , Cryptococcus gattii , Cryptococcus neoformans , Transportadoras de Casetes de Unión a ATP/genética , Animales , Antifúngicos/farmacología , Azoles/farmacología , Criptococosis/microbiología , Criptococosis/veterinaria , Pruebas de Sensibilidad Microbiana/veterinaria , Tipificación de Secuencias Multilocus/veterinaria
6.
BMC Pulm Med ; 22(1): 369, 2022 Sep 28.
Artículo en Inglés | MEDLINE | ID: mdl-36171571

RESUMEN

BACKGROUND: Part-solid nodules (PSNs) have gradually shifted to defining special clinical subtypes. Commonly, the solid portions of PSNs show various radiological morphologies, of which the corresponding pathological basis and prognosis are unclear. We conducted a radiological-pathological evaluation to determine the histopathologic basis of different consolidation radiographic morphologies related to prognosis. MATERIALS AND METHODS: A cohort of 275 patients with a surgical pathological diagnosis of lung adenocarcinoma were enrolled. Preoperative computed tomography (CT) images of the PSNs were recorded and assessed. A panel of 103 patients with complete pathological specimens was selected to examine the radiological-pathological associations, and follow-up was performed to identify the prognosis. RESULTS: Of the 275 patients, punctate consolidation was observed radiologically in 43/275 (15.7%), stripe consolidation in 68/275 (24.7%), and irregular consolidation in 164/275 (59.6%) patients. The radiological morphology of the solid components was significantly associated with the histopathological subtypes (P < 0.001). Visual punctate solid components on CT correlated with tertiary lymphoid structures, stripe solid components on CT correlated with fibrotic scar, and irregular solid components on CT correlated with invasion. PSNs with regular consolidation had a better prognosis than those with irregular consolidation. CONCLUSION: Radiological morphology of solid components in PSNs can indicate the pathological basis and is valuable for prognosis. In particular, irregular solid components in PSNs usually indicate serious invasive growth, which should be taken with caution during assessment.


Asunto(s)
Adenocarcinoma del Pulmón , Neoplasias Pulmonares , Nódulo Pulmonar Solitario , Adenocarcinoma del Pulmón/diagnóstico por imagen , Adenocarcinoma del Pulmón/patología , Humanos , Neoplasias Pulmonares/diagnóstico por imagen , Neoplasias Pulmonares/patología , Pronóstico , Radiografía , Nódulo Pulmonar Solitario/diagnóstico por imagen , Nódulo Pulmonar Solitario/patología
7.
Acta Biochim Biophys Sin (Shanghai) ; 54(5): 593-603, 2022 May 25.
Artículo en Inglés | MEDLINE | ID: mdl-35593469

RESUMEN

Cryptococcus gattii is a kind of basidiomycetous yeast, which grows in human and animal hosts. C. gattii has four distinct genomes, VGI/AFLP4, VGII/AFLP6, VGIII/AFLP5, and VGIV/AFLP7. The virulence of C. gattii is closely associated with genotype and related stress-signaling pathways, but the pathogenic mechanism of C. gattii has not been fully identified. With the development of genomics and transcriptomics, the relationship among genes, regulatory mechanisms, virulence, and treatment is gradually being recognized. In this review, to better understand how C. gattii causes disease and to characterize hypervirulent C. gattii strains, we summarize the current understanding of C. gattii genotypes, phenotypes, virulence, and the regulatory mechanisms.


Asunto(s)
Cryptococcus gattii , Humanos , Animales , Cryptococcus gattii/genética , Virulencia/genética , ADN de Hongos/genética , Genotipo
8.
BMC Cancer ; 21(1): 634, 2021 May 29.
Artículo en Inglés | MEDLINE | ID: mdl-34051746

RESUMEN

BACKGROUND: Immunotherapy is becoming a standard of care for non-small cell lung cancer (NSCLC). Checkpoint inhibitor-associated pneumonia (CIP) is a rare and potentially life-threatening event that can occur at any time during tumor immunotherapy. However, there may be differences in the radiological patterns and prognosis of CIP during different periods. This study aimed to investigate the radiographic features and prognosis of early- and late-onset immune-related pneumonitis. METHODS: We retrospectively analyzed the clinical data of 677 NSCLC patients receiving immunotherapy to identify 32 patients with CIP, analyzed the clinical and radiographic data, and summarized the radiological features and prognosis of early- and late-onset CIP. RESULTS: CIP had an incidence of 4.7%, a median onset time of 10 weeks, and a mortality of 28.1%. Among these, CIP included 14 early-onset cases, where grade ≥ 3 CIP accounted for 92.9%, main radiographic pattern was organizing pneumonia (OP)-like pattern, and mortality was 50.0%. We also identified 18 late-onset CIPs, where grade ≥ 3 CIP accounted for 50.0%, main radiographic pattern was nonspecific interstitial pneumonia (NSIP)-like pattern, and mortality was 11.1%. The overall survival rate of the early-onset group was significantly lower than that of the late-onset group (P < 0.05). CONCLUSION: Early-onset CIP cases were higher in the Common Terminology Criteria for Adverse Events (CTCAE v5.0) grade and mainly presented with an OP-like radiographic pattern; whereas, late-onset CIP cases were lower in CTCAE grade and mainly presented with an NSIP-like radiographic pattern. Finally, the prognosis of the early-onset CIP group was poorer than that of the late-onset CIP group. We believe that this study will be helpful for clinicians for making early diagnosis and deciding treatment modalities for patients with CIP.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Inhibidores de Puntos de Control Inmunológico/efectos adversos , Neoplasias Pulmonares/tratamiento farmacológico , Pulmón/diagnóstico por imagen , Neumonía/epidemiología , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma de Pulmón de Células no Pequeñas/inmunología , Femenino , Humanos , Incidencia , Pulmón/efectos de los fármacos , Pulmón/inmunología , Neoplasias Pulmonares/inmunología , Masculino , Persona de Mediana Edad , Neumonía/inducido químicamente , Neumonía/inmunología , Pronóstico , Estudios Retrospectivos , Medición de Riesgo/métodos , Factores de Tiempo
9.
J Surg Oncol ; 123(5): 1336-1344, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-33523526

RESUMEN

BACKGROUND: Pulmonary mucosa-associated lymphoid tissue lymphoma (MALToma) is the most frequent subset of primary pulmonary lymphoma. This study aimed to identify radiologic characteristics of pulmonary MALToma based on computed tomography (CT) observations and pathologic features, and further investigate its prognosis. METHODS: Sixty-six patients (55.4 ± 10.9 years; 51.5% male) diagnosed as pulmonary MALToma by pathology were retrospectively enrolled. According to distributions and features of lesions shown on CT, patients were divided into three patterns, including single nodular/mass, multiple nodular/mass, and pneumonia-like consolidative. RESULTS: Variety of the location and extent of the lymphomatous infiltration accounted for different characteristics demonstrated at CT. The pneumonia-like consolidative pattern was the most frequent pattern observed in 42 patients (63.6%), followed by single nodular/mass (21.2%) and multiple nodular/mass (15.2%). CT features included air bronchogram (72.7%), well-marginated halo sign (53.0%), coarse spiculate with different lengths (72.7%), angiogram sign (77.1% of 35 patients), peribronchovascular thickening (48.5%), irregular cavitation (16.7%) and pulmonary cyst (7.6%). The estimated 5-year cumulative overall survival rate of pulmonary MALToma was 100.0%. CONCLUSIONS: Pulmonary MALToma demonstrates several characteristics at CT. Identification of the significant pulmonary abnormalities of this indolent disease entity might be helpful for early diagnosis and optimal treatment.


Asunto(s)
Neoplasias Pulmonares/diagnóstico por imagen , Neoplasias Pulmonares/patología , Linfoma de Células B de la Zona Marginal/diagnóstico por imagen , Linfoma de Células B de la Zona Marginal/patología , Tomografía Computarizada por Rayos X/métodos , Femenino , Estudios de Seguimiento , Humanos , Neoplasias Pulmonares/cirugía , Linfoma de Células B de la Zona Marginal/cirugía , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Retrospectivos
10.
Acta Biochim Biophys Sin (Shanghai) ; 52(3): 281-293, 2020 Mar 18.
Artículo en Inglés | MEDLINE | ID: mdl-32073597

RESUMEN

Exosome is a crucial manner for cancer cell to cell communication and circulating exosomes sever as promising diagnostic and prognostic markers for various types of diseases. A predominant type of cargo of exosome is small RNAs, especially miRNAs. Here, we profiled plasma exosomal miRNAs of six lung adenocarcinoma patients before and after surgery, as well as six healthy individuals as normal control. Our profiling revealed 38 upregulated and 37 downregulated exosomal miRNAs in the plasma of lung adenocarcinoma patients. Additionally, we found that most upregulated miRNAs were increased in the lung adenocarcinoma samples of TCGA database. We further evaluated the correlation between the upregulated exosomal miRNAs and overall survival with Kaplan-Meier survival analysis using online databases. Our results suggested that exosomal miR-151a-5p, miR-10b-5p, miR-192-5p, miR-106b-3p, and miR-484 are potential prognostic markers for lung adenocarcinoma. Importantly, we validated candidate miRNAs in lung adenocarcinoma patients before and after surgery as well as in healthy controls and found that miR-484 was significantly increased in the plasma of lung adenocarcinoma patients and strikingly decreased post-surgery. Hence, we provided novel information on lung adenocarcinoma-derived exosomal miRNA and potential non-invasive diagnostic and prognostic markers for lung adenocarcinoma.


Asunto(s)
Adenocarcinoma del Pulmón/genética , Complejo Multienzimático de Ribonucleasas del Exosoma/genética , MicroARNs/genética , Adenocarcinoma/patología , Adenocarcinoma del Pulmón/diagnóstico , Adenocarcinoma del Pulmón/mortalidad , Adulto , Anciano , Biomarcadores de Tumor/genética , Carcinoma de Pulmón de Células no Pequeñas/genética , Complejo Multienzimático de Ribonucleasas del Exosoma/sangre , Complejo Multienzimático de Ribonucleasas del Exosoma/metabolismo , Exosomas/genética , Femenino , Perfilación de la Expresión Génica/métodos , Regulación Neoplásica de la Expresión Génica/genética , Humanos , Estimación de Kaplan-Meier , Neoplasias Pulmonares/patología , Masculino , MicroARNs/sangre , MicroARNs/metabolismo , Persona de Mediana Edad , Pronóstico , Curva ROC
11.
Trends Cancer ; 2024 Aug 03.
Artículo en Inglés | MEDLINE | ID: mdl-39097431

RESUMEN

The evolution of antitumor therapies has significantly improved cancer prognosis but has concurrently resulted in cardiovascular toxicities. Understanding the biological mechanisms behind these toxicities is crucial for effective management. Immunotherapy-related cardiovascular toxicities are primarily mediated by immune cells and secreted cytokines. Chemotherapy may cause cardiovascular damage through autophagy disruption and mitochondrial dysfunction. Targeted therapies can induce toxicity through endothelin-1 (ET-1) production and cardiac signaling disruption. Radiotherapy may lead to cardiomyopathy and myocardial fibrosis by affecting endothelial cells, triggering inflammatory responses and accelerating atherosclerosis. This review provides insights into these mechanisms and strategies, aiming to enhance the clinical prevention and treatment of cardiovascular toxicities.

12.
Clin Respir J ; 18(4): e13750, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38616354

RESUMEN

BACKGROUND: Pulmonary mucinous adenocarcinoma is a special type of lung cancer. Its imaging manifestations are diverse, which brings challenges to clinical diagnosis. However, its formation mechanism is unclear. OBJECTIVE: The objective of this study is to analyse the relevant mechanisms of the formation of pulmonary mucinous adenocarcinoma by observing its different imaging and pathological manifestations. DATA AND METHODS: Retrospective analysis was conducted on imaging manifestations and pathological data of 103 patients with pulmonary mucinous adenocarcinoma confirmed intraoperatively or pathologically. RESULTS: Forty-three patients had pulmonary mucinous adenocarcinoma with a solitary nodule/mass, 41 patients with localized pneumonia and 19 patients with diffuse pneumonia. Their CT manifestations included 'falling snowflake sign', ground-glass opacity close to the heart, vacuous signs/honeycombing and withered tree branches. Under the microscope, all the three types of pulmonary mucinous adenocarcinoma had visibly formed mucus lakes but were made of tumour cells with totally different shapes, which included the goblet-like shape (tall column-like shape) and quasi-circular shape. Tall column-shaped tumour cells were negative or weakly positive for thyroid transcription factor-1 (TTF-1) and strongly positive for ALK mutation, whereas quasi-circular tumour cells were positive for TTF-1 and less positive for ALK mutation. CONCLUSION: The different imaging manifestations of mucinous adenocarcinoma are possibly due to the different amounts or viscosity of mucus produced, and the mechanisms of its formation may include (1) tumour cells in different shapes have different abilities to produce mucus; (2) tumours in different stages produce different amounts or viscosity of mucus; and (3) the TTF-1 and ALK genes affect the production of mucus.


Asunto(s)
Adenocarcinoma del Pulmón , Neoplasias Pulmonares , Neumonía , Humanos , Estudios Retrospectivos , Neoplasias Pulmonares/diagnóstico por imagen , Proteínas Tirosina Quinasas Receptoras
13.
Arch Bronconeumol ; 2024 Jul 27.
Artículo en Inglés, Español | MEDLINE | ID: mdl-39174437

RESUMEN

Immune checkpoint inhibitors have opened an era of lung cancer therapy. However, a notable disparity exists in the efficacy of immunotherapy among individual patients. The tertiary lymphoid structure (TLS) is an ectopic lymphocyte aggregation that appears under pathological conditions and is the primary site of action for anti-tumor immunity. It is commonly reported that the presence of TLS within the tumor microenvironment (TME) relates to a favorable clinical prognosis and an excellent response to immunotherapy in lung cancer patients. A thorough understanding of TLS and its dynamic changes in TME has become an attractive focus for optimizing immunotherapy strategies for lung cancer. In this review, we comprehensively generalize the composition, formation, mechanism, detection methods of TLS, and summarize the role of TLS in lung cancer immunotherapy. Finally, induction of TLS is also discussed, which may provide more effective therapeutic strategies for lung cancer therapy.

14.
Biomed Pharmacother ; 174: 116558, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38603887

RESUMEN

Human adenovirus (HAdV) infection is a major cause of respiratory disease, yet no antiviral drugs have been approved for its treatment. Herein, we evaluated the antiviral and anti-inflammatory effects of cyclin-dependent protein kinase (CDK) inhibitor indirubin-3'-monoxime (IM) against HAdV infection in cells and a transgenic mouse model. After evaluating its cytotoxicity, cytopathic effect reduction, antiviral replication kinetics, and viral yield reduction assays were performed to assess the anti-HAdV activity of IM. Quantitative real-time polymerase chain reaction (qPCR), quantitative reverse transcription PCR (qRT-PCR), and western blotting were used to assess the effects of IM on HAdV DNA replication, transcription, and protein expression, respectively. IM significantly inhibited HAdV DNA replication as well as E1A and Hexon transcription, in addition to significantly suppressing the phosphorylation of the RNA polymerase II C-terminal domain (CTD). IM mitigated body weight loss, reduced viral burden, and lung injury, decreasing cytokine and chemokine secretion to a greater extent than cidofovir. Altogether, IM inhibits HAdV replication by downregulating CTD phosphorylation to suppress viral infection and corresponding innate immune reactions as a promising therapeutic agent.


Asunto(s)
Adenovirus Humanos , Antiinflamatorios , Antivirales , Indoles , Oximas , Replicación Viral , Indoles/farmacología , Animales , Oximas/farmacología , Humanos , Antivirales/farmacología , Adenovirus Humanos/efectos de los fármacos , Replicación Viral/efectos de los fármacos , Antiinflamatorios/farmacología , Ratones , Ratones Transgénicos , Infecciones por Adenovirus Humanos/tratamiento farmacológico , Infecciones por Adenovirus Humanos/virología , Células A549 , Citocinas/metabolismo , Fosforilación/efectos de los fármacos
15.
Front Immunol ; 15: 1413067, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39026670

RESUMEN

Tertiary lymphoid structures (TLS) represent the ectopic aggregations of immune cells arising during chronic inflammation or tumor progression. In cancer, TLS are often associated with beneficial clinical outcomes in patients undergoing immunotherapy, underscoring their prognostic and predictive significance. Mature TLS, characterized by germinal centers and areas of T-cell and B-cell aggregation, are considered primary locations for activating and maintaining both humoral and cellular anti-tumor immune effects. Despite their recognized importance, the mechanisms driving the formation of mature TLS in cancer and their influence on the immune response within tumors remain insufficiently understood. Therefore, this review aims to comprehensively explore the structural composition, development mechanisms, maturity impact factors, immunological function, and innovative therapeutic strategies of mature TLS within the tumor microenvironment. The research summarized herein offers novel insights and considerations for therapeutic approaches to promote TLS generation and maturation in patients with cancer, representing a promising avenue for future cancer therapies.


Asunto(s)
Neoplasias , Estructuras Linfoides Terciarias , Microambiente Tumoral , Humanos , Estructuras Linfoides Terciarias/inmunología , Estructuras Linfoides Terciarias/patología , Neoplasias/inmunología , Neoplasias/terapia , Neoplasias/patología , Microambiente Tumoral/inmunología , Animales , Inmunoterapia/métodos , Linfocitos B/inmunología , Linfocitos T/inmunología
16.
Clin Transl Med ; 14(3): e1613, 2024 03.
Artículo en Inglés | MEDLINE | ID: mdl-38451000

RESUMEN

The emergence of immune checkpoint inhibitors (ICIs) has heralded a transformative era in the therapeutic landscape of non-small cell lung cancer (NSCLC). While ICIs have demonstrated clinical efficacy in a portion of patients with NSCLC, these treatments concurrently precipitate a spectrum of immune-related adverse events (irAEs), encompassing mild to severe manifestations, collectively posing a risk of significant organ damage. Consequently, there exists an imperative to augment our comprehension of the pathophysiological underpinnings of irAEs and to formulate more efficacious preventive and ameliorative strategies. In this comprehensive review, we delineate the clinical presentation of organ-specific irAEs in patients with NSCLC and provide an in-depth analysis of recent advancements in understanding the mechanisms driving ICI-induced toxicity. Furthermore, we discuss potential strategies and targets for ameliorating these irAEs. Ultimately, this review aims to furnish valuable insights to guide further research endeavours in the context of irAEs in NSCLC patients.


Asunto(s)
Carcinoma de Pulmón de Células no Pequeñas , Neoplasias Pulmonares , Humanos , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Neoplasias Pulmonares/tratamiento farmacológico , Inhibidores de Puntos de Control Inmunológico/efectos adversos
17.
Int Immunopharmacol ; 140: 112790, 2024 Oct 25.
Artículo en Inglés | MEDLINE | ID: mdl-39088920

RESUMEN

Tertiary lymphoid structures (TLSs) are ectopic lymphocyte aggregates formed in non-lymphoid tissues, including cancers, and are loci for the generation of in situ anti-tumor immune responses, which play a crucial role in cancer control. The state of TLS presence in cancer and its composition can significantly impact the treatment response and prognosis of patients. TLSs have the potential to serve as predictive and prognostic biomarkers for cancer. However, the mechanisms underlying TLS formation in cancer and how the essential components of TLSs affect cancer are not fully understood. In this review, we summarized TLS formation in cancer, the value of the TLS in different states of existence, and its key constituents for cancer prediction and prognosis. Finally, we discussed the impact of cancer treatment on TLSs.


Asunto(s)
Biomarcadores de Tumor , Neoplasias , Estructuras Linfoides Terciarias , Humanos , Estructuras Linfoides Terciarias/inmunología , Neoplasias/inmunología , Neoplasias/diagnóstico , Pronóstico , Animales , Biomarcadores de Tumor/metabolismo , Microambiente Tumoral/inmunología , Linfocitos/inmunología
18.
Quant Imaging Med Surg ; 13(7): 4339-4349, 2023 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-37456298

RESUMEN

Background: Ciliated muconodular papillary tumor (CMPT) is a rare pulmonary tumor with papillary architecture. Most studies have focused on the clinicopathological features of CMPT, while computed tomography (CT) characteristics have rarely been systematically described. Methods: A cohort of 27 patients with surgically resected CMPT were identified. Clinical and demographic features were recorded. Preoperative CT images of the CMPTs and the corresponding histopathological basis were also retrospectively analyzed. Results: All of the tumors appeared as solitary nodules. Pure ground glass, part-solid nodules and solid nodules were detected in 2/27 (7.4%), 17/27 (63.0%), and 8/27 (29.6%) patients, respectively. Twenty-one tumors (77.8%) were located in the lower lobe. The average tumor size was 1.21±0.74 (range, 0.44-3.46) cm. Eighteen (66.7%) of the 27 patients had tumors with well-defined margins and lobulated contours. Fifteen patients (55.6%) had air bronchograms in the tumor, and 19 patients (70.4%) had air-containing space. There were two patients whose tumor size was enlarged and accompanied by an increase in solid components, and one patient simply had an increase in tumor size at the preoperative follow-up duration. Notably, one patient with solid tumor components was finally diagnosed with CMPT accompanied by adenocarcinoma. Conclusions: CMPTs of the lung mostly manifest as solitary, lobulated, well-defined tumors with air-containing spaces on CT and often occur in the periphery of the pulmonary lower lobe. When CT findings meet these criteria, the possibility of CMPT should be considered. Additionally, CMPT can coexist with adenocarcinoma. Further investigation will contribute significantly to the biological properties of CMPT and its relationship to the potential for malignant transformation.

19.
Artículo en Inglés | MEDLINE | ID: mdl-35805272

RESUMEN

It is widely believed that outdoor environmental design contributes to outdoor violence prevention. To enhance the effectiveness of environmental design, the intrinsic link between the outdoor school violence distribution (OSVD) and the outdoor campus environment (OCE) should be fully considered. For this purpose, this study investigated boarding school L, located in southern Zhejiang Province of China, through a questionnaire and Spatial Syntax theory. Based on the questionnaire marker method (N = 338, 50.59% female), the OSVD was mapped using the kernel density estimation in ArcGIS, including four types of teacher-student conflict: verbal bullying, physical conflict, and external intrusion. The spatial analysis of the OCE (spatial configuration and spatial visibility) then was generated by the DepthmapX, involving four spatial attributes such as integration, mean depth, connectivity, and visibility connectivity. Statistical analysis results indicated the correlation between the OSVD and both the spatial configuration and spatial visibility of the OCE. For the different violence types, there were differences in the impact relationships, with integration being a significant predictor of teacher-student conflict and physical conflict (p < 0.01) and a general predictor of verbal bullying (p < 0.05), while mean depth was a significant predictor of physical conflict (p < 0.01), but not recommended as a predictor of external intrusion. This study explores and predicts the relationship between the OSVD and the OCE, providing guidance and evidence for school violence prevention environmental design. It is a novel attempt, but still challenging and requires more research to refine.


Asunto(s)
Acoso Escolar , Violencia , China , Femenino , Humanos , Masculino , Servicios de Salud Escolar , Instituciones Académicas
20.
Comput Biol Med ; 151(Pt A): 106213, 2022 12.
Artículo en Inglés | MEDLINE | ID: mdl-36306573

RESUMEN

BACKGROUND: To explore the expression of hyaluronan mediated motility receptor (HMMR) in lung adenocarcinoma (LUAD) and its relationship with clinicopathological features and tumor-infiltrating is not clear. METHODS: The expression of HMMR in Cancer Cell Line Encyclopedia (CCLE) and The Cancer Genome Atlas (TCGA)-LUAD. TCGA was employed to examine the relationship between the clinicopathological characteristics and HMMR expression and the LUAD patients' prognosis. Tumor Immune Estimation Resource (TIMER)database was employed to analyze the relationship between immune infiltration and HMMR. Gene Set Enrichment Analysis was explored through gene enrichment. Gene Expression Omnibus (GEO) data and our hospital data were utilized to confirm the findings. RESULTS: The expression level of HMMR in lung adenocarcinoma tissue and cells was greater than that in the normal group, which was linked to clinical stage, smoking history, and recurrence, and could increase the progression or recurrence of LUAD. Patients in the pathological grade had a significant expression of HMMR in moderately differentiated LUAD tissues. In addition, HMMR has an impact on LUAD patients' overall survival rate [P = 9.5e-06; hazard ratio (HR) = 2]. The level of HMMR expression in LUAD was significantly linked to neutrophils, CD8+T, and CD4+T cells. TMB analysis showed that HMMR could also affect the tumor microenvironment in LUAD. HMMR might be employed as an independent predictive biomarker of LUAD, according to a multivariate COX regression analysis. The findings of GSEA analysis showed that the samples with high HMMR expression levels were rich in cell cycle, cell metabolism, and DNA replication. The analysis results of GSE31210 data are basically consistent with those of TCGA-LUAD. CONCLUSIONS: It is suggested that HMMR has an effect on the occurrence and development of lung adenocarcinoma. Besides, HMMR is also linked to the level of immune infiltration of neutrophils, CD8+T cells, and CD4+T cells and LUAD patients' prognosis. HMMR was suggested to be utilized as a biomarker or therapeutic target to judge the prognosis and immune infiltration of LUAD.


Asunto(s)
Adenocarcinoma del Pulmón , Adenocarcinoma , Neoplasias Pulmonares , Humanos , Pronóstico , Adenocarcinoma del Pulmón/genética , Adenocarcinoma/genética , Neoplasias Pulmonares/genética , Microambiente Tumoral
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