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1.
Zhongguo Yi Xue Ke Xue Yuan Xue Bao ; 45(1): 77-79, 2023 Feb.
Artigo em Chinês | MEDLINE | ID: mdl-36861159

RESUMO

We provided the palliative care of a multiple disciplinary team care mode to a patient diagnosed with advanced head and neck cancer and her caregivers.People-centered integrated health services were provided according to the specific needs and preferences of individuals.The team-based palliative care relieved the suffering and improved the quality of life of the patient and that of her family who were facing challenges associated with life-threatening illness.


Assuntos
Neoplasias de Cabeça e Pescoço , Cuidados Paliativos , Humanos , Feminino , Qualidade de Vida , Neoplasias de Cabeça e Pescoço/terapia
2.
Anticancer Drugs ; 32(1): 11-21, 2021 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-33290312

RESUMO

Lung cancer is one of the most common human cancers. Long noncoding RNA AFAP1-AS1 (LncRNA AFAP1-AS1) and microRNA-545-3p (miR-545-3p) were reported to play important roles in lung cancer development. This study aimed to elucidate the functional mechanisms of AFAP1-AS1 and miR-545-3p in lung cancer. Quantitative real time polymerase chain reaction was carried out to determine the levels of AFAP1-AS1, miR-545-3p and hepatoma-derived growth factor (HDGF). Cell proliferation, apoptosis, migration and invasion were detected by 3-(4, 5-dimethyl-2-thiazolyl)-2, 5-diphenyl-2-H-tetrazolium bromide assay, flow cytometry, and transwell migration and invasion assays, respectively. Furthermore, the interaction between miR-545-3p and AFAP1-AS1 or HDGF was predicted by bioinformatics analysis software starbase and confirmed by the dual luciferase reporter assay. Western blot assay was used to detect the protein level of HDGF. Besides, murine xenograft model was conducted through injecting A549 cells transfected with sh-AFAP1-AS1. The expression levels of AFAP1-AS1 and HDGF were increased, while miR-545-3p was decreased in lung cancer tissues and cells. AFAP1-AS1 knockdown suppressed lung cancer cell proliferation, migration, and invasion and induced apoptosis. Furthermore, AFAP1-AS1 mediated cell progression through regulating miR-545-3p expression. In addition, miR-545-3p negatively regulated the expression level of HDGF via binding 3'-untranslated region of HDGF. As expected, AFAP1-AS1 knockdown inhibited lung cancer progression via affecting miR-545-3p/HDGF axis. Besides, AFAP1-AS1 knockdown suppressed lung cancer tumor growth in vivo. Collectively, our results suggested that AFAP1-AS1 promoted the development of lung cancer via regulating miR-545-3p/HDGF axis, providing a potential target for the treatment of lung cancer.


Assuntos
Biomarcadores Tumorais/metabolismo , Regulação Neoplásica da Expressão Gênica , Peptídeos e Proteínas de Sinalização Intercelular/metabolismo , Neoplasias Pulmonares/patologia , MicroRNAs/genética , RNA Longo não Codificante/genética , Animais , Apoptose , Biomarcadores Tumorais/genética , Movimento Celular , Proliferação de Células , Feminino , Humanos , Peptídeos e Proteínas de Sinalização Intercelular/genética , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/metabolismo , Camundongos , Camundongos Nus , Invasividade Neoplásica , Prognóstico , Taxa de Sobrevida , Células Tumorais Cultivadas , Ensaios Antitumorais Modelo de Xenoenxerto
3.
Med Sci Monit ; 26: e924187, 2020 Sep 03.
Artigo em Inglês | MEDLINE | ID: mdl-32879299

RESUMO

BACKGROUND lncRNA MALAT1 is one of the most widely studied lncRNAs associated with various human cancers. The present study explored the functions and potential regulatory mechanisms of MALAT1 in oral squamous cell carcinoma (OSCC). MATERIAL AND METHODS We assessed levels of MALAT1, miR-143-3p, and MAGEA9 expression in OSCC tissues and cell lines by quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot assay. Proliferation and migration of CAL-27 cells were detected via CCK-8 and transwell assays, respectively. To study the relationships among MALAT1, miR-143-3p, and MAGEA9, we performed dual-luciferase assay and assessed the results using Spearman correlation analysis. RESULTS QRT-PCR results showed that MALAT1 and MAGEA9 were expressed at higher levels and miR-143-3p was expressed at lower levels in OSCC tissues. Dramatic suppression of cell proliferation and migration abilities were caused by MALAT1 knockdown or miR-143-3p overexpression in CAL-27 cells. MALAT1 directly interacted with and negatively regulated miR-143-3p. Moreover, MAGEA9 was validated as a miR-143-3p target gene and was found to be negatively regulated by it. MALAT1 knockdown suppressed MAGEA9 protein expression and had the same effect as MAGEA9 knockdown. Additionally, MAGEA9 knockdown inhibited CAL-27 cell proliferation and migration abilities. Finally, in OSCC tissues, MALAT1 and miR-143-3p expression were negatively correlated and MALAT1 was positively correlated with MAGEA9 expression, while an inverse correlation between MAGEA9 and miR-143-3p expression was observed. CONCLUSIONS Taken together, our results suggest that MALAT1 functions as a competing endogenous RNA (ceRNA) in promoting OSCC cell proliferation and migration abilities through the miR-143-3p/MAGEA9 axis, thus providing new therapeutic targets for treatment of OSCC.


Assuntos
Antígenos de Neoplasias/genética , Proliferação de Células/genética , MicroRNAs/genética , Neoplasias Bucais/patologia , Proteínas de Neoplasias/genética , RNA Longo não Codificante/fisiologia , Carcinoma de Células Escamosas de Cabeça e Pescoço/patologia , Linhagem Celular Tumoral , Regulação Neoplásica da Expressão Gênica , Técnicas de Silenciamento de Genes , Humanos , Neoplasias Bucais/genética , Invasividade Neoplásica , Reação em Cadeia da Polimerase em Tempo Real , Carcinoma de Células Escamosas de Cabeça e Pescoço/genética
4.
Lipids Health Dis ; 18(1): 108, 2019 May 10.
Artigo em Inglês | MEDLINE | ID: mdl-31077212

RESUMO

BACKGROUND: This study aims to investigate the effect of lipid metabolism disorder on liver function in patients with malignant tumors after chemotherapy. METHOD: A total of 428 patients with malignant tumors with normal liver function in our hospital between May 2013 to June 2018 were divided into an observation group (lipid metabolism disorder, n = 265) and control group (normal lipid metabolism, n = 163). The lipid metabolism levels and liver damage of the two groups were compared before and after chemotherapy. RESULTS: No significant differences in age, gender, body mass index, tumor types, history of surgery, levels of alanine aminotransferase (ALT; an indicator of liver function), and chemotherapy regimen were observed between the two groups. However, the observation group showed increased levels of total cholesterol (P = 0.000), triglycerides (P = 0.000), and low-density lipoprotein (P = 0.01), as well as decreased levels of high-density lipoprotein (P = 0.000) before chemotherapy compared with the control group. Furthermore, patients with lipid metabolism disorders were more likely to develop abnormal liver function after chemotherapy. Moreover, mixed lipid metabolism disorder was more likely to cause severe liver damage after chemotherapy. Additionally, the number of patients with lipid metabolism disorders after chemotherapy (n = 367) was significantly increased compared with before chemotherapy (n = 265) (P < 0.01), indicating that chemotherapy might induce or aggravate an abnormal lipid metabolism. CONCLUSIONS: After receiving chemotherapy, patients with malignant tumors presenting lipid metabolism disorders are more prone to liver damage and lipid metabolism disorders than patients with a normal lipid metabolism.


Assuntos
Metabolismo dos Lipídeos , Fígado/fisiopatologia , Neoplasias/tratamento farmacológico , Neoplasias/metabolismo , Estudos de Casos e Controles , Feminino , Humanos , Lipídeos/sangue , Fígado/patologia , Masculino , Pessoa de Meia-Idade , Neoplasias/sangue , Neoplasias/fisiopatologia
5.
Zhongguo Yi Xue Ke Xue Yuan Xue Bao ; 39(4): 573-577, 2017 Aug 20.
Artigo em Inglês | MEDLINE | ID: mdl-28877838

RESUMO

Pathological scars,including keloids and hypertrophic scars,result from aberrations in the process of physiologic wound healing.An exaggerated inflammatory process is one of the main pathophysiological contributors.Pathological scars may cause pain and pruritis,limit joint mobility,and cause a range of cosmetic deformities that affect the patient's quality of life.However,the effectiveness of currently available prevention and treatment measures remains unsatisfactory.Mesenchymal stem cells,among their multifunctional roles,have the functions of immunomodulation and promotion of angiogenesis.Thus,they have been proposed to be a major candidate for cell therapy to treat or prevent pathologicalscars.This article reviews the mechanism and potentials of stem cell therapy in the prevention and treatment of pathological scars.


Assuntos
Cicatriz Hipertrófica/terapia , Queloide/terapia , Células-Tronco Mesenquimais , Humanos , Qualidade de Vida , Cicatrização
6.
Tumour Biol ; 36(1): 271-8, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25245333

RESUMO

Histone demethylase KDM2A has been reported to be dysregulated in lung cancer. However, its function in gastric cancer remains poorly understood. Here, it was found that the expression level of KDM2A was increased in gastric cancer tissues. Moreover, forced expression of KDM2A in gastric cancer cells promoted cell growth and migration, while the knockdown expression of KDM2A inhibited the tumorigenicity of gastric cancer cells. Mechanistically, KDM2A regulated the growth and motility of gastric cancer cells through downregulating the expression of programmed cell death 4 (PDCD4), a known tumor suppressor in the progression of gastric cancer. Taken together, our study suggested that upregulation of KDM2A was very important in the progression of gastric cancer, and KDM2A might be a promising therapeutic target.


Assuntos
Proteínas Reguladoras de Apoptose/metabolismo , Movimento Celular , Proteínas F-Box/fisiologia , Histona Desmetilases com o Domínio Jumonji/fisiologia , Proteínas de Ligação a RNA/metabolismo , Neoplasias Gástricas/enzimologia , Animais , Proteínas Reguladoras de Apoptose/genética , Linhagem Celular Tumoral , Proliferação de Células , Regulação Neoplásica da Expressão Gênica , Humanos , Camundongos Nus , Metástase Neoplásica , Transplante de Neoplasias , Proteínas de Ligação a RNA/genética , Neoplasias Gástricas/patologia , Regulação para Cima
7.
Zhong Yao Cai ; 38(3): 457-9, 2015 Mar.
Artigo em Chinês | MEDLINE | ID: mdl-26495641

RESUMO

OBJECTIVE: T0 understand the population distribution, species abundance and habitats requirement of a medicinal animal, Centropus sinensis, in Guangxi Province. METHODS: Line transect methods were used to census population number and habitat types in 18 counties or cities of Guangxi. RESULTS: Centropus sinensis distributed in all study area, with a higher population density in the south than in the north. Among seven habitat types, the species preferred living in forest-farmland ecotone, while seldom in broad-leaves forest or plantations. CONCLUSION: The results of habitat preference show an advantage to the population recovering for forest-farmland ecotone commonly existing in Guangxi Province. But the speed of population recovering is slowly under illegal hunting pressure. More attention should be paid to protect this species.


Assuntos
Aves , Ecossistema , Agricultura , Animais , China , Florestas , Densidade Demográfica
8.
Animals (Basel) ; 13(18)2023 Sep 18.
Artigo em Inglês | MEDLINE | ID: mdl-37760356

RESUMO

Mallards (Anas platyrhynchos) are currently one of the most popular species in rare bird breeding in several southern provinces of China, but there have been no studies comparing the gut microbial communities of domestic and wild mallards. In this study, 16S rRNA gene high-throughput sequencing technology was used to compare the composition and diversity of gut microbial communities in domestic and wild mallards. Alpha diversity analysis showed significant differences in gut microbial communities between the two groups of mallards, and the diversity and richness of gut microbial communities were significantly higher in wild mallards than in domestic mallards. Beta diversity analysis showed that the two groups of stool samples were mostly separated on the principal coordinate analysis (PCoA) plot. In domestic mallards, Firmicutes (68.0% ± 26.5%) was the most abundant bacterial phylum, followed by Proteobacteria (24.5% ± 22.9%), Bacteroidetes (3.1% ± 3.2%), Fusobacteria (2.2% ± 5.9%), and Actinobacteria (1.1% ± 1.8%). The dominant bacterial phyla in wild mallards were Firmicutes (79.0% ± 10.2%), Proteobacteria (12.9% ± 9.5%), Fusobacteria (3.4% ± 2.5%), and Bacteroidetes (2.8% ± 2.4%). At the genus level, a total of 10 dominant genera (Streptococcus, Enterococcus, Clostridium, Lactobacillus, Soilbacillus, Bacillus, Acinetobacter, Comamonas, Shigella, and Cetobacterium) with an average relative abundance greater than 1% were detected in the fecal samples of both groups. The average relative abundance of five potential pathogenic genera (Streptococcus, Enterococcus, Acinetobacter, Comamonas, and Shigella) was higher in domestic mallards than in wild mallards. The enrichment of pathogenic bacteria in the intestinal tract of domestic mallards should be of sufficient concern.

9.
Front Oncol ; 13: 1259713, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38125935

RESUMO

Background: This study aimed to explore the clinical efficacy and safety of a modified FOLFOX6 (oxaliplatin + leucovorin + 5-fluorouracil) plus bevacizumab regimen after deep hyperthermia in advanced colorectal cancer. Methods: A total of 80 colorectal cancer patients treated at our hospital were selected as research subjects. According to the random number table method, patients were divided into a control group (mFOLFOX6 plus bevacizumab) and a combination group (mFOLFOX6 plus bevacizumab after deep hyperthermia treatment), with 40 patients in each group. After six cycles of treatment, the objective response rate (ORR), disease control rate (DCR), levels of serum tumor markers carcinoembryonic antigen (CEA), vascular epidermal growth factor (VEGF), Karnofsky performance status (KPS) scores, and the occurrence of adverse events were compared between the two groups. Results: After six cycles of treatment, the ORR in the combination group was higher than that in the control group, but the difference was not statistically significant (P>0.05). The DCR in the combination group was significantly higher than that in the control group (P<0.05). The serum CEA levels in the control and combination groups after treatment were significantly lower than those before treatment, and the serum CEA and VEGF levels in the combination group were significantly lower than those in the control group (all P<0.001). The KPS scores in both groups after treatment were higher than those before treatment, and the KPS scores in the combination group after treatment were significantly higher than those in the control group (all P<0.001). The incidence of fatigue and pain in the combination group was significantly lower than that in the control group (P<0.05). Conclusion: mFOLFOX6 plus bevacizumab after deep hyperthermia is effective in advanced colorectal cancer patients, which can effectively improve their quality of life, and the adverse events are controllable and tolerable. A randomized or prospective trial will be required to further prove these data and explore its potentiality, especially if compared to conventional treatment.

10.
Pathol Oncol Res ; 29: 1611114, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37465317

RESUMO

Aim: To observe the efficacy of the low dose apatinib plus deep hyperthermia as third-line or later treatment for patients with human epidermal growth factor receptor 2 (HER-2) negative advanced gastric cancer. Methods: 80 eligible patients with HER-2 negative advanced gastric cancer admitted to Jingjiang People's Hospital Affiliated with Yangzhou University-from March 2021 to March 2022 were selected, and they were divided into the control group (n = 40, apatinib) and experimental group (n = 40, apatinib plus deep hyperthermia) on the basis of random number table method. The levels of serum carcinoembryonic antigen (CEA), carbohydrate antigen 199 (CA199), and vascular endothelial growth factor (VEGF) were monitored, and the efficacy of the two groups was analyzed by referring to Karnofsky performance status (KPS), overall survival (OS) and disease control rate (DCR) before and after treatment. Results: The levels of CEA, CA199, and VEGF in both groups were lower after treatment than before (p < 0.05), and lower (CEA: 8.85 ± 1.36 vs. 12.87 ± 1.23, CA199: 34.19 ± 4.68 vs. 50.11 ± 5.73, VEGF: 124.8 ± 18.03 vs. 205.9 ± 19.91) in the experimental group than in the control group (p < 0.05). The DCR and KPS of the patients in the experimental group were significantly higher (DCR: 62.50% vs. 40.00%; KPS: 83.25 ± 1.15 vs. 76.25 ± 1.17) than in the control group (p < 0.05). In survival analysis, patients with control group had shorter OS than the experimental group. (median 5.65 vs. 6.50 months; hazard ratio [HR], 1.63 [95% confidence interval (CI) 1.02-2.60], p = 0.0396). Conclusion: The application of low-dose apatinib plus deep hyperthermia for patients with HER-2 negative gastric cancer who failed second-line treatment should be a promising option.


Assuntos
Antineoplásicos , Hipertermia Induzida , Neoplasias Gástricas , Humanos , Neoplasias Gástricas/tratamento farmacológico , Neoplasias Gástricas/induzido quimicamente , Fator A de Crescimento do Endotélio Vascular , Antineoplásicos/uso terapêutico , Antígeno Carcinoembrionário
11.
Heliyon ; 9(7): e17087, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37456024

RESUMO

Calcifying Epithelial Odontogenic Tumor (CEOT), also known as Pindborg tumor, is a rare odontogenic benign tumor. It was first reported by Thoma and Goldman in 1946 and defined as an independent tumor by Pindborg in 1957. Herein, we reported a CEOT case involving most of the mandible after I-125 implantation in a 53-year-old man. We cooperated with governmental and hospital departments to resect the tumors, reconstruct the mandible with a fibular flap graft, and properly dispose of the radioactive particles.

12.
Food Funct ; 14(2): 1238-1247, 2023 Jan 23.
Artigo em Inglês | MEDLINE | ID: mdl-36625098

RESUMO

Global warming makes humans and animals more vulnerable to heat stress. Heat stress can cause multiorgan dysfunction, especially in the intestine, primarily via oxidative stress and inflammation. Mogroside-rich extract (MGE) is the active ingredient of Siraitia grosvenorii and has significant antioxidant and anti-inflammatory activity. However, whether MGE can alleviate the intestinal damage caused by heat stress has not been explored. In this study, mice were given 600 mg kg-1 MGE followed by exposure to high temperature (40 °C for 2 h per day), and the structures and molecular changes in the ileum were examined. Our findings showed that body weight was decreased by heat stress, while the activity of serum superoxide dismutase (SOD) was increased. We further found that heat stress impaired the intestinal barrier by reducing the number of goblet cells and mRNA levels of the tight junction proteins zona occludens protein 1 (ZO-1), Occludin (OCLD) and recombinant mucin 2 (MUC2 mucin), but it increased the mRNA level of trefoil factor 3 (TFF3). Interestingly, MGE treatment reversed these changes. Furthermore, heat stress increased the activity of SOD in the intestine, downregulated the expression of the oxidative stress-related genes glutathione peroxidase 1 (GPX1), SOD2 and nuclear factor erythroid 2-related factor 2 (NRF2), and upregulated the expression of catalase (CAT). Moreover, heat stress increased tumor necrosis factor-α (TNF-α) levels in the intestine and upregulated the expression of the inflammation-related genes interleukin 10 (IL-10), TNF-α, Interferon-γ (IFN-γ), toll like receptor 4 (TLR4) and nuclear factor-kappa B (NF-kB). However, MGE treatment effectively reduced TNF-α levels and restored the normal activity of SOD and normal mRNA levels for both oxidative stress-related and inflammation-related genes. In summary, our results showed that MGE can protect against heat stress-induced intestinal damage by ameliorating inflammation and oxidative stress.


Assuntos
Frutas , Fator de Necrose Tumoral alfa , Humanos , Camundongos , Animais , Fator de Necrose Tumoral alfa/metabolismo , Frutas/metabolismo , Intestinos , Estresse Oxidativo , Inflamação , NF-kappa B/metabolismo , Superóxido Dismutase/metabolismo , RNA Mensageiro/metabolismo , Resposta ao Choque Térmico
13.
Zootaxa ; 5169(1): 93-96, 2022 Jul 27.
Artigo em Inglês | MEDLINE | ID: mdl-36101251

RESUMO

This paper describes one new species of Metriogryllacris (Metriogryllacris) amitarum group from Guangxi Huaping National Nature Reserve. A key to the species group is provided. The examined specimen is deposited in Guangxi Normal University.


Assuntos
Ortópteros , Distribuição Animal , Estruturas Animais , Animais , Tamanho Corporal , China , Humanos , Tamanho do Órgão
14.
J Oncol ; 2022: 9538384, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35685424

RESUMO

Objective: To evaluate the value of cell-free DNA (cfDNA) for the diagnosis and prognosis of colorectal cancer (CRC). Methods: Peripheral blood specimens of 120 CRC patients and 90 healthy volunteers (as a control cohort) were extracted. A quantitative real-time polymerase chain reaction (qRT-PCR) was performed to determine the cfDNA expression. Following correlation analyses for cfDNA and clinical endpoints, a receiver operator characteristic (ROC) curve was established to assess the sensitivity and specificity of cfDNA, CEA, VEGF, and CA125 and for evaluating the disease-free survival (DFS) of patients. Results: The plasma cfDNA level of colorectal cancer patients was significantly higher than that of healthy subjects (P < 0.05), and after chemotherapy, cfDNA level was significantly lower than that before chemotherapy (P < 0.05). CA125/CEA/VEGF expression significantly correlated with cfDNA level, but not with cfDNA integrity. There was also a significant correlation between tumor differentiation and the cfDNA level. cfDNA has a higher ROC value than the current tumor biomarkers. Survival analysis showed that the DFS of the low cfDNA expression group was longer (29.99 ± 0.78 months) than that of the high cfDNA expression group (27.66 ± 1.05 months, P=0.031). Conclusion: The blood cfDNA is associated with the pathological features of CRC clinical cases and represents a possible indicator for CRC diagnosis and prognosis.

15.
Int J Mol Sci ; 12(6): 3635-47, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21747699

RESUMO

Recent phylogeographical studies indicated that glacial oscillations played a key role on the phylogeographic pattern of extant species. As most studies have previously been carried out on heavily ice-covered regions, such as in European and North American regions, potential effects of climatic oscillations on species that are distributed on ice-free regions are less known. To address this, we investigated the phylogeographic pattern of an avian species endemic to South China, which was not glaciated during the Pleistocene glaciations. By using 2142 bp mitochondrial DNA, we identified 89 haplotypes defined by 39 polymorphic sites. A combination of high haplotype diversity (0.786-1.00) and low nucleotide diversity (0.00132-0.00252) was detected among geographic populations. Explicit genetic divergence was observed between S. s. semitorques and S. s. cinereicapillus but not detected among geographic populations of S. s. semitorques. Divergence time of the two subspecies was dated back to 87 Kyr which is congruent with the interglacial MIS 5. A weak phylogeographic structure due to strong gene flow among geographic populations was identified in this species, suggesting complex topography of South China has not formed barriers for this species.


Assuntos
Aves/genética , DNA Mitocondrial/genética , Fluxo Gênico , Animais , Aves/classificação , China , DNA Mitocondrial/análise , Variação Genética , Genética Populacional , Haplótipos , Método de Monte Carlo , Filogeografia , Análise de Sequência de DNA
16.
Oncol Lett ; 22(1): 503, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33986864

RESUMO

Radiotherapy is an effective therapeutic strategy in esophageal squamous cell carcinoma (ESCC). However, acquired radioresistance of cancer cells leads to radiotherapy failure. The present study aimed to investigate the mechanisms of the effect of high mobility group box 1 (HMGB1) on the radiation sensitivity of ESCC. Small interfering RNA (si) transfection was used to generate three groups of TE-1 cells (TE-1, negative control and TE-1+siHMGB1), and the protein expression levels of HMGB1 in TE-1 cells were detected by western blotting. These groups of TE-1 cells were irradiated with different doses (0, 2, 4, 6 and 8 Gy) of X-rays after transfection. Subsequently, the viability of TE-1 cells was detected using an MTT assay, and the survival fraction of TE-1 cells was observed using a colony formation assay. The apoptotic rate, reactive oxygen species (ROS) content and levels of phosphorylated (p)-histone H2AX at S139 (p-γH2AX) of the cells were detected by flow cytometry. The alterations in mRNA expression levels of nicotinamide adenine nucleotide phosphate oxidase (NOX)1 and NOX5 were detected by reverse transcription-quantitative PCR, while the changes in protein levels of caspase-3, poly(ADP-ribose) polymerase, p-p38, p-ERK1/2 and p-JNK were detected by western blotting. The results revealed that HMGB1 knockdown significantly decreased cell viability, and the apoptosis rate of TE-1 cells transfected with siHMGB1 combined with radiation treatment was increased compared with that in cells with either siHMGB1 transfection or radiation treatment alone. HMGB1 knockdown increased nicotinamide adenine nucleotide phosphate oxidase-mediated ROS production and induced DNA damage via the MAPK signaling pathway, which may promote apoptosis and radiosensitivity after radiation in TE-1 cells. In conclusion, targeting HMGB1 may represent a promising strategy to increase the efficacy of radiation therapy for ESCC.

17.
World J Clin Cases ; 9(14): 3350-3355, 2021 May 16.
Artigo em Inglês | MEDLINE | ID: mdl-34002144

RESUMO

BACKGROUND: MET fusion is a key driver mutation, but it is rare in gastric cancer (GC). Several MET (hepatocyte growth factor receptor) inhibitors have been approved for the treatment of MET-positive patients, but the tumor response is heterogeneous. With the development of next-generation sequencing, diverse MET fusion partner genes have been identified. We herein report a fusion variant involving KIF5B-MET in GC. CASE SUMMARY: After thoracoscopic inferior lobectomy plus lymph node dissection under general anesthesia, a "tumor within a tumor" was found in the lung tumor tissue of a 64-year-old non-smoking male patient. Combining the medical history and the results of enzyme labeling, the focal area was considered to be GC. To seek potential therapeutic regimens, an intergenic region between KIF5B and MET fusion was identified. This fusion contains a MET kinase domain and coil-coiled domains encoded by KIF5B exons 1-25, which might drive the oncogenesis. CONCLUSION: Our finding could extend the spectrum and genomic landscape of MET fusions in GC and favor the development of personalized therapy.

18.
Oral Radiol ; 37(4): 658-668, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-33428106

RESUMO

OBJECTIVES: To explore the effectiveness of magnetic resonance image (MRI)-based biomarkers for identifying benign and malignant parotid tumors via diagnostic model analysis. METHODS: This retrospective study included 109 patients (development cohort and validation cohort) who underwent MRI preoperatively, including T1- and T2-weighted images. Parameters based on 2D or 3D texture analysis were extracted from tumor lesions by MaZda software, fisher discriminant and bootstrap method were used to perform parameter reduction, diagnostic models with the selected biomarkers were established along with clinical data, model performance (discrimination and calibration) was furtherly evaluated by internal and external validation, decision curve analysis was applied to measure the improvement of clinical benefits. RESULTS: S(5,5) Entrop, S(0,1) ASM, WavEnHH (s-4), S(1,1,0) Entropy and Perc.10% were significantly associated with the pathological diagnosis of parotid tumor (benign versus malignancy), when adding these biomarkers to the regression analysis, model performance significantly improved in the development cohort (likelihood-ratio-test; p < 0.05, with an increase of AUC from 0.72 (reference model) to 0.85), and these results were maintained in a small external validation cohort. Decision curve analysis indicated that clinical benefit was greater with the application of MRI-based biomarkers. CONCLUSIONS: MRI-based texture analysis is proven to be an effective tool in differentiating benign and malignant parotid tumors, preoperative diagnosis was improved with the selected biomarkers compared to the reference model.


Assuntos
Neoplasias Parotídeas , Biomarcadores , Diagnóstico Diferencial , Humanos , Imageamento por Ressonância Magnética , Neoplasias Parotídeas/diagnóstico por imagem , Estudos Retrospectivos
19.
Artigo em Inglês | MEDLINE | ID: mdl-33602604

RESUMO

OBJECTIVE: The objective of this study was to compare the diagnostic performance of magnetic resonance imaging (MRI) and computed tomography (CT) in differentiating pleomorphic adenomas from Warthin tumors using radiomics. STUDY DESIGN: We retrospectively reviewed 626 patients who underwent preoperative MRI or CT for parotid tumor diagnosis. Patient groups were balanced by propensity score matching (PSM) and 123 radiomic features were extracted from tumor images. Radiomic signatures (rad-scores) were generated using a least absolute shrinkage and selection operator logistic regression model. The Canny edge detector was used to define tumor borders (border index). The diagnostic performance of rad-score and border index before and after PSM was evaluated with area under the receiver operating characteristic curve analysis. RESULTS: For differentiation of pleomorphic adenomas and Warthin tumors, rad-score and border index areas under the curve for MRI after PSM were 0.911 (95% confidence interval [CI], 0.871-0.951) and 0.716 (95% CI, 0.646-0.787), respectively; those for CT were 0.876 (95% CI, 0.829-0.923) and 0.608 (95% CI, 0.527-0.690), respectively. Tumor border index on MRI, but not CT, had superior diagnostic performance (P < .05); MRI- and CT-based rad-scores showed similar performance (P >.05). CONCLUSIONS: MRI is superior to CT for tumor margin examination; however, the radiomics features of both modalities showed no difference.


Assuntos
Adenoma Pleomorfo , Neoplasias Parotídeas , Adenoma Pleomorfo/diagnóstico por imagem , Humanos , Imageamento por Ressonância Magnética , Neoplasias Parotídeas/diagnóstico por imagem , Estudos Retrospectivos , Tomografia Computadorizada por Raios X
20.
Cell Death Dis ; 12(4): 354, 2021 04 06.
Artigo em Inglês | MEDLINE | ID: mdl-33824271

RESUMO

As a result of mutations in the upstream components of the Wnt/ß-catenin signaling pathway, this cascade is abnormally activated in colon cancer. Hence, identifying the activation mechanism of this pathway is an urgent need for the treatment of colon cancer. Here, we found an increase in ADCK1 (AarF domain-containing kinase 1) expression in clinical specimens of colon cancer and animal models. Upregulation of ADCK1 expression promoted the colony formation and infiltration of cancer cells. Downregulation of ADCK1 expression inhibited the colony formation and infiltration of cancer cells, in vivo tumorigenesis, migration, and organoid formation. Molecular mechanistic studies demonstrated that ADCK1 interacted with TCF4 (T-cell factor 4) to activate the ß-catenin/TCF signaling pathway. In conclusion, our research revealed the functions of ADCK1 in the development of colon cancer and provided potential therapeutic targets.


Assuntos
Colo/metabolismo , Neoplasias do Colo/metabolismo , Regulação Neoplásica da Expressão Gênica/fisiologia , Proteínas Quinases/metabolismo , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinogênese/genética , Linhagem Celular Tumoral , Proliferação de Células/fisiologia , Transformação Celular Neoplásica/genética , Neoplasias do Colo/patologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Transcrição TCF/metabolismo , Ativação Transcricional/fisiologia
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