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1.
Transl Oncol ; 46: 102000, 2024 Jun 08.
Artigo em Inglês | MEDLINE | ID: mdl-38852278

RESUMO

Gastric cancer (GC) has become the first malignant tumor with highest incidence rate and mortality of cancer in China, finding therapeutic targets for gastric cancer is of great significant for improving the survival rate of patients with GC. Recently, many of studies have shown that LncRNAs is involved in multiple biological progresses in the development of GC. This study, we screened for abnormally high expression of LncSHANK3 in GC through the TCGA database, and found that LncSHANK3 sponge adsorbs miR-4530, further competing with MNX1 and binding to miR-4530. We demonstrated the interaction between LncSHANK3 and miR-4530 through luciferase reporting analysis, with miR-4530 negatively regulating MNX1.Through CCK8, colony formation, transwell, and wound healing assays, it was found that LncSHANK3 affects the occurrence of GC through cell proliferation, migration and invasion. In conclusion, LncSHANK3/miR-4530/MNX1 axis is a potential mechanism for the treatment of GC.

2.
Cardiovasc Res ; 2024 Apr 21.
Artigo em Inglês | MEDLINE | ID: mdl-38643484

RESUMO

AIMS: The vascular aging process accelerated by type 2 diabetes mellitus (T2DM) is responsible for the elevated risk of associated cardiovascular diseases (CVDs). Metabolic disorder-induced immune senescence has been implicated in multi-organ/tissue damage. Herein, we sought to determine the role of immunosenescence in diabetic vascular aging and to investigate the underlying mechanisms. METHODS AND RESULTS: Aging hallmarks of the immune system appear prior to the vasculature in streptozotocin (STZ)/high-fat diet (HFD)-induced T2DM mice or db/db mice. Transplantation of aged splenocytes or diabetic splenocytes into young mice triggered vascular senescence and injury compared to normal control splenocyte transfer. RNA-seq profile and validation in immune tissues revealed that the Toll-like receptor 4 (TLR4)- Nuclear factor-kappa B (NF-κB) -NLRP3 axis might be the mediator of diabetic premature immunosenescence. The absence of Nlrp3 attenuated immune senescence and vascular aging during T2DM. Importantly, senescent immune cells, particularly T cells, provoked perivascular adipose tissue (PVAT) dysfunction and alternations in its secretome, which in turn impair vascular biology. In addition, senescent immune cells may uniquely affect vasoconstriction via influencing PVAT. Lastly, rapamycin alleviated diabetic immune senescence and vascular aging, which may be partly due to NLRP3 signaling inhibition. CONCLUSION: These results indicated that NLRP3 inflammasome-mediated immunosenescence precedes and drives diabetic vascular aging. The contribution of senescent immune cells to vascular aging is a combined effect of their direct effects and induction of PVAT dysfunction, the latter of which can uniquely affect vasoconstriction. We further demonstrated that infiltration of senescent T cells in PVAT was increased and associated with PVAT secretome alterations. Our findings suggest that blocking the NLRP3 pathway may prevent early immunosenescence and thus mitigate diabetic vascular aging and damage, and targeting senescent T cells or PVAT might also be the potential therapeutic approach.

3.
Aging (Albany NY) ; 16(1): 285-298, 2024 Jan 04.
Artigo em Inglês | MEDLINE | ID: mdl-38180746

RESUMO

Gastric cancer poses a serious threat to human health and affects the digestive system. The lack of early symptoms and a dearth of effective identification methods make diagnosis difficult, with many patients only receiving a definitive diagnosis at a malignant stage, causing them to miss out on optimal therapeutic interventions. Melanoma-associated antigen-A (MAGE-A) is part of the MAGE family and falls under the cancer/testis antigen (CTA) category. The MAGE-A subfamily plays a significant role in tumorigenesis, proliferation and migration. The expression, prognosis and function of MAGE-A family members in GC, however, remain unclear. Our research and screening have shown that MAGE-A11 was highly expressed in GC tissues and was associated with poor patient prognosis. Additionally, MAGE-A11 functioned as an independent prognostic factor in GC through Cox regression analysis, and its expression showed significant correlation with both tumour immune cell infiltration and responsiveness to immunotherapy. Our data further indicated that MAGE-A11 regulated GC cell proliferation and migration. Subsequently, our findings propose that MAGE-A11 may operate as a prognostic factor, having potential as an immunotherapy target for GC.


Assuntos
Proteínas de Neoplasias , Neoplasias Gástricas , Masculino , Humanos , Proteínas de Neoplasias/metabolismo , Antígenos de Neoplasias/metabolismo , Prognóstico , Neoplasias Gástricas/patologia , Imunoterapia , Biomarcadores
4.
Acta Pharmacol Sin ; 44(11): 2282-2295, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37280363

RESUMO

Abnormalities of FGFR1 have been reported in multiple malignancies, suggesting FGFR1 as a potential target for precision treatment, but drug resistance remains a formidable obstacle. In this study, we explored whether FGFR1 acted a therapeutic target in human T-cell acute lymphoblastic leukemia (T-ALL) and the molecular mechanisms underlying T-ALL cell resistance to FGFR1 inhibitors. We showed that FGFR1 was significantly upregulated in human T-ALL and inversely correlated with the prognosis of patients. Knockdown of FGFR1 suppressed T-ALL growth and progression both in vitro and in vivo. However, the T-ALL cells were resistant to FGFR1 inhibitors AZD4547 and PD-166866 even though FGFR1 signaling was specifically inhibited in the early stage. Mechanistically, we found that FGFR1 inhibitors markedly increased the expression of ATF4, which was a major initiator for T-ALL resistance to FGFR1 inhibitors. We further revealed that FGFR1 inhibitors induced expression of ATF4 through enhancing chromatin accessibility combined with translational activation via the GCN2-eIF2α pathway. Subsequently, ATF4 remodeled the amino acid metabolism by stimulating the expression of multiple metabolic genes ASNS, ASS1, PHGDH and SLC1A5, maintaining the activation of mTORC1, which contributed to the drug resistance in T-ALL cells. Targeting FGFR1 and mTOR exhibited synergistically anti-leukemic efficacy. These results reveal that FGFR1 is a potential therapeutic target in human T-ALL, and ATF4-mediated amino acid metabolic reprogramming contributes to the FGFR1 inhibitor resistance. Synergistically inhibiting FGFR1 and mTOR can overcome this obstacle in T-ALL therapy.


Assuntos
Aminoácidos , Leucemia-Linfoma Linfoblástico de Células T Precursoras , Humanos , Leucemia-Linfoma Linfoblástico de Células T Precursoras/tratamento farmacológico , Serina-Treonina Quinases TOR/metabolismo , Transdução de Sinais , Linfócitos T/metabolismo , Linhagem Celular Tumoral , Antígenos de Histocompatibilidade Menor , Sistema ASC de Transporte de Aminoácidos/metabolismo , Receptor Tipo 1 de Fator de Crescimento de Fibroblastos/metabolismo , Fator 4 Ativador da Transcrição/metabolismo
5.
Int J Mol Sci ; 23(19)2022 Oct 09.
Artigo em Inglês | MEDLINE | ID: mdl-36233293

RESUMO

Thyroid cancer remains the most common endocrine malignancy worldwide, and its incidence has steadily increased over the past four years. Papillary Thyroid Cancer (PTC) is the most common differentiated thyroid cancer, accounting for 80-85% of all thyroid cancers. Mitochondrial proteins (MRPs) are an important part of the structural and functional integrity of the mitochondrial ribosomal complex. It has been reported that MRPL9 is highly expressed in liver cancer and promotes cell proliferation and migration, but it has not been reported in PTC. In the present study we found that MRPL9 was highly expressed in PTC tissues and cell lines, and lentivirus-mediated overexpression of MRPL9 promoted the proliferation and migration ability of PTC cells, whereas knockdown of MRPL9 had the opposite effect. The interaction between MRPL9 and GGCT (γ-glutamylcyclotransferase) was found by immunofluorescence and co-immunoprecipitation experiments (Co-IP). In addition, GGCT is highly expressed in PTC tissues and cell lines, and knockdown of GGCT/MRPL9 in vivo inhibited the growth of subcutaneous xenografts in nude mice and inhibited the formation of lung metastases. Mechanistically, we found that knockdown of GGCT/MRPL9 inhibited the MAPK/ERK signaling pathway. In conclusion, our study found that the interaction of GGCT and MRPL9 modulates the MAPK/ERK pathway, affecting the proliferation and migration of PTC cells. Therefore, GGCT/MRPL9 may serve as a potential biomarker for PTC monitoring and PTC treatment.


Assuntos
Sistema de Sinalização das MAP Quinases , Neoplasias da Glândula Tireoide , gama-Glutamilciclotransferase , Animais , Linhagem Celular Tumoral , Movimento Celular/genética , Proliferação de Células/genética , Regulação Neoplásica da Expressão Gênica , Humanos , Camundongos , Camundongos Nus , Proteínas Mitocondriais/genética , Proteínas Mitocondriais/metabolismo , Câncer Papilífero da Tireoide/patologia , Neoplasias da Glândula Tireoide/patologia , gama-Glutamilciclotransferase/genética
6.
Aging (Albany NY) ; 14(13): 5537-5553, 2022 07 11.
Artigo em Inglês | MEDLINE | ID: mdl-35816352

RESUMO

Lung adenocarcinoma is a malignant and fatal respiratory disease. However, due to its complex pathogenesis and poorly effective therapeutic options, accurate early diagnosis and prognosis remain elusive. Now, there is increasing evidence that tumor stem cells are involved in tumorigenesis, metastasis, relapse, resistance to chemotherapy and radiotherapy and are one of the reasons why tumors cannot be cured. The mRNA expression based-stemness index (mRNAsi) is a parameter obtained by Malta and his colleagues applying innovative one-class logistic regression machine learning algorithm (OCLR) on mRNA expression in normal stem cells and their progeny. It is a valid evaluation parameter and is currently employed to evaluate the degree of differentiation of a certain tumor. In this study, we first used WGCNA and the software Cytoscape to obtain key modules and hub genes. We then applied LASSO regression analysis to calculate the genes in the key module to obtain a six-gene risk model. Moreover, the accuracy of this model was validated. Finally, we took the intersection of hub genes and risk genes and validated CENPA as both a tumor stemness regulator and a tumor prognostic factor in lung cancer.


Assuntos
Adenocarcinoma de Pulmão , Neoplasias Pulmonares , Adenocarcinoma de Pulmão/genética , Biomarcadores Tumorais/genética , Proteínas de Ciclo Celular/metabolismo , Histonas , Humanos , Neoplasias Pulmonares/patologia , Recidiva Local de Neoplasia , Prognóstico , RNA Mensageiro/metabolismo
8.
Pharmacol Res ; 178: 106143, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35219871

RESUMO

Vascular senescence is inextricably linked to the onset and progression of cardiovascular diseases (CVDs), which are the main cause of mortality in people with Type 2 diabetes (T2DM). Previous studies have emphasized the importance of chronic aseptic inflammation in diabetic vasculopathy. Here, we found the abnormal activation of NLRP3 inflammasome in the aorta of both old and T2DM mice by immunofluorescence and Western Blot analysis. Histopathological and isometry tension analysis showed that the presence of T2DM triggered or aggravated the increase of vascular aging markers, as well as age-associated vascular impairment and vasomotor dysfunction, which were improved by NLRP3 deletion or inhibition. Differential expression of aortic genes links to senescence activation and vascular remodeling supports the favorable benefits of NLRP3-/- during T2DM. In vitro results based on primary mice aortic endothelial cells (MAECs) and vascular smooth muscle cells (VSMCs) demonstrate that NLRP3 deficiency attenuated premature senescence and restored proliferation and migration capability under-stimulation, and partially ameliorated replicative senescence. These results provide an insight into the critical role of NLRP3 signaling in T2DM-induced vascular aging and loss of vascular homeostasis, and provide the possibility that targeting NLRP3 inflammasome might be a promising strategy to prevent diabetic vascular senescence and associated vascular lesions.


Assuntos
Diabetes Mellitus Tipo 2 , Inflamassomos , Animais , Diabetes Mellitus Tipo 2/metabolismo , Células Endoteliais/metabolismo , Inflamassomos/metabolismo , Inflamação/metabolismo , Camundongos , Miócitos de Músculo Liso/metabolismo , Proteína 3 que Contém Domínio de Pirina da Família NLR/genética , Proteína 3 que Contém Domínio de Pirina da Família NLR/metabolismo
9.
Pathol Res Pract ; 230: 153740, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35007850

RESUMO

Metformin is an oral biguanide used to treat diabetes. Recent study showed it may interfere was related to cancer progression and has a positive effect on cancer prevention and treatment, which attracts a new hot research topic. Here we show that Metformin suppressed the proliferation but induced apoptosis of gastric cells. Notably, Metformin enhanced gastriccell apoptosis via modulating AMPK signaling. Furthermore, Metformin and miR-365 synergistically promote the apoptosis of gastric cancer cells by miR-365-PTEN-AMPK axis. Our study unraveled a novel signaling axis in the regulation in gastric cancer, which could be amplified by the application of metformin. The new effect of metformin potentiates its novel therapeutic application in the future. AVAILABILITY OF DATA AND MATERIALS: The data generated during this study are included in this article and its supplementary information files are available from the corresponding author on reasonable request.


Assuntos
Proteínas Quinases Ativadas por AMP/metabolismo , Antineoplásicos/farmacologia , Apoptose/efeitos dos fármacos , Metformina/farmacologia , MicroRNAs/metabolismo , PTEN Fosfo-Hidrolase/metabolismo , Neoplasias Gástricas/tratamento farmacológico , Regiões 3' não Traduzidas , Animais , Linhagem Celular Tumoral , Regulação Neoplásica da Expressão Gênica , Humanos , Masculino , Camundongos Endogâmicos BALB C , Camundongos Nus , MicroRNAs/genética , PTEN Fosfo-Hidrolase/genética , Fosforilação , Transdução de Sinais , Neoplasias Gástricas/genética , Neoplasias Gástricas/metabolismo , Neoplasias Gástricas/patologia , Carga Tumoral/efeitos dos fármacos , Ensaios Antitumorais Modelo de Xenoenxerto
10.
Oncol Res ; 28(9): 885-897, 2022 Jan 31.
Artigo em Inglês | MEDLINE | ID: mdl-34321149

RESUMO

Abnormal cell proliferation caused by abnormal transcription regulation mechanism seems to be one of the reasons for the progression of breast cancer and also the pathological basis. MicroRNA-142-5p (miR-142-5p) is a low-expressed miRNA in breast cancer. The role of MKL-1s regulation of DNMT1 in breast cancer cell proliferation and migration is still unclear. MKL-1 (myocardin related transcription factor A) can bind to the conserved cis-regulatory element CC (A/T) 6GG (called CarG box) in the promoter to regulate the transcription of miR-142-5p. The expressions of miR-142-5p and MKL-1 are positively correlated. In addition, it has been proved that DNMT1 is the target of miR-142-5p, which inhibits the expression of DNMT1 by targeting the 3-UTR of DNMT1, thereby forming a feedback loop and inhibiting the migration and proliferation of breast cancer. Our data provide important and novel insights into the MKL-1/miR-142-5p/DNMT1/maspin signaling pathway and may become a new idea for breast cancer diagnosis, treatment, and prognosis.


Assuntos
Neoplasias da Mama , MicroRNAs , Regiões 3' não Traduzidas , Neoplasias da Mama/genética , Linhagem Celular Tumoral , Movimento Celular/genética , Proliferação de Células , DNA (Citosina-5-)-Metiltransferase 1 , Feminino , Regulação Neoplásica da Expressão Gênica , Humanos , MicroRNAs/genética
11.
Shanghai Kou Qiang Yi Xue ; 30(4): 444-448, 2021 Aug.
Artigo em Chinês | MEDLINE | ID: mdl-34693443

RESUMO

PURPOSE: To investigate the clinical efficacy and safety of bipolar coagulation forceps combined with 1% lauromacrogol foam sclerotherapy in the treatment of microcystic lymphatic malformation of tongue. METHODS: The clinical data of 16 patients with microcystic lymphatic malformation of the tongue admitted to the Department of Stomatology of Foshan First People's Hospital from April 2017 to April 2020 were retrospectively analyzed, including 7 males and 9 females, aging from 15 months to 21 years. The average age of patients was 8.32±1.21 years. The efficacy and complications of the patients were evaluated. RESULTS: All 16 patients were followed up for 6 to 12 months. The clinical response was evaluated as eleven patients (68.75%) for grade Ⅳ, three (18.75%) for grade Ⅲ, two (12.5%) for grade Ⅱ, and the effective rate was 87.5%. Necrosis of tongue mucosa and muscle occurred in 1 patient. CONCLUSIONS: Bipolar coagulation forceps combined with 1% lauromacrogol foam sclerotherapy is a minimally invasive, safe and effective treatment for tongue microcystic lymphatic malformation.


Assuntos
Escleroterapia , Língua , Criança , Feminino , Humanos , Masculino , Polidocanol , Estudos Retrospectivos , Instrumentos Cirúrgicos
12.
Aging (Albany NY) ; 13(20): 23588-23602, 2021 10 20.
Artigo em Inglês | MEDLINE | ID: mdl-34670872

RESUMO

UCEC is one of the three common malignant tumors of the female reproductive tract. According to reports, the cure rate of early UCEC can reach 95%. Therefore, the development of prognostic markers will help UCEC patients to find the disease earlier and develop treatment earlier. The ALDH family was first discovered to be the essential gene of the ethanol metabolism pathway in the body. Recent studies have shown that ALDH can participate in the regulation of cancer. In our research, we explored the expression of the ALDH family in 33 cancers. It was found that ALDH2 was abnormally expressed in UCEC. Besides, in vivo and in vitro experiments were conducted to explore the effect of ALDH2 expression on the proliferation of UCEC cell lines. Meanwhile, the change of its expression is not due to gene mutations, but is regulated by miR-135-3p. At the same time, the impact of ALDH2 changes on the survival of UCEC patients is deeply discussed. Finally, a nomogram for predicting survival was constructed, with a C-index of 0.798 and AUC of 0.764. This study suggests that ALDH2 may play a crucial role in UCEC progression and has the potential as a prognostic biomarker of UCEC.


Assuntos
Aldeído-Desidrogenase Mitocondrial/genética , Neoplasias do Endométrio , Biomarcadores Tumorais/genética , Linhagem Celular Tumoral , Proliferação de Células/genética , Neoplasias do Endométrio/diagnóstico , Neoplasias do Endométrio/genética , Neoplasias do Endométrio/mortalidade , Neoplasias do Endométrio/patologia , Feminino , Humanos , Modelos Estatísticos , Prognóstico , Mapas de Interação de Proteínas/genética , Análise de Sobrevida
13.
Aging (Albany NY) ; 13(16): 20302-20318, 2021 08 23.
Artigo em Inglês | MEDLINE | ID: mdl-34425560

RESUMO

Cancer development and progression can be regulated by the levels of endogenous factors. Gastric cancer is an aggressive disease state with poor patient prognosis, needing the development of new diagnostics and therapeutic strategies. We investigated the close association between follistatin-like 3 (FSTL3) and different cancers, and focused on its role in gastric cancer cell function. Using cancer bioinformatics, we found that FSTL3 expression is elevated in a large majority of the 33 cancers we analyzed in publicly available cancer databases. Elevated levels of FSTL3 is associated with poor patient prognosis in gastric cancer. In a comparison of normal gastric epithelial cells and gastric cancer cell lines, FSTL3 expression was consistently elevated in gastric cancer cells. Overexpression of FSTL3 promoted gastric cancer cell viability, proliferation and migration. Conversely, FSTL3 knockdown inhibits these cellular processes. Using bioinformatics, we found that the FSTL3 mRNA has a potential binding site in the 3'-UTR for a small microRNA, miR-486-5p. Further bioinformatics revealed significant negative correlation between FSTL3 and miR-486-5p levels. Using luciferase reporter constructs, we provide evidence that the 3'UTR from the FSTL3 mRNA can confer downregulation in the presence of miR-486-5p. These studies lead us to conclude that FSTL3 has oncogenic properties and increased expression of this gene product promotes gastric cancer development and progression.


Assuntos
Proteínas Relacionadas à Folistatina/metabolismo , MicroRNAs/metabolismo , Neoplasias Gástricas/metabolismo , Neoplasias Gástricas/fisiopatologia , Animais , Apoptose , Linhagem Celular Tumoral , Movimento Celular , Proliferação de Células , Proteínas Relacionadas à Folistatina/genética , Humanos , Camundongos , Camundongos Endogâmicos BALB C , MicroRNAs/genética , Estadiamento de Neoplasias , Neoplasias Gástricas/genética , Neoplasias Gástricas/patologia
14.
Zhongguo Ying Yong Sheng Li Xue Za Zhi ; 37(3): 300-304, 2021 May.
Artigo em Chinês | MEDLINE | ID: mdl-34374244

RESUMO

Objective: To investigate the effect of different arterial occlusion pressure and intermittent time on KAATSU-loaded deep-squat exercise on the characteristics of thigh muscle activation, find out the suitable relative value of personal blood pressure limit causing the maximum activation, and to provide some theoretical basis and practical reference for athletes to carry on the KAATSU Training scientifically. Methods: Ten elite male players were recruited, four kinds of external pressure condition with 0% arterial occlusion pressure (AOP), 40%AOP, 50%AOP, 60%AOP, respectively, were performed with 30%1RM(One repetition maximum)intensity of intermittent and continuous KAASTU-loaded deep-squat exercise. Wave plus wireless surface electromyography instrument was used to collect the surface EMG signals of the lower thigh muscle group. Root mean square (RMS) calculation was used to estimate muscle activity level. The normalized RMS values of the anterior thigh group and posterior thigh group were calculated by RMS of MVC, two-factor ANOVA analysis of variance were used to explore the effect of the activation of various muscle on external express and intermittent mode, to analyze the discrepancy during different external pressure. Results: ①A two-factor analysis of variance showed that different %AOP had significant effect on the normalized values of RMS of muscle measured by KAATSU deep-squat exercise(P<0.05), but intermittent mode had no significant effect on the standard value of RMS of muscle(P>0.05). The interaction of external pressure and intermittent mode on muscle RMS was not significant(P>0.05); ②The normalized RMS values of Rectus Femoris, Vastus Medialis, Vastus Lateralis, Biceps Femoris, Semitendinosus were significantly increased (P<0.05)in 50% AOP pressure condition during intermittent and continuous exercise; ③ The normalized RMS values of RF and VL were significantly increased(P<0.05)in 50% AOP pressure condition during intermittent and continuous exercise. The %MVC values of Vastus Medialis and Semitendinosus were significantly increased(P<0.05)in 60% AOP pressure condition during intermittent exercise. Conclusion: This study further verified that 50% AOP pressure can significantly improve the optimal activation quadriceps and posterior thigh groups and produce the best training effect for the high level handball players. It can not only promote the coordinated development of the agonist and antagonist, but also avoid overloading and prevent hamstring injury. At the same time, the intermittent mode is recommended to adopt the decompression intermittent mode.


Assuntos
Músculo Esquelético , Coxa da Perna , Eletromiografia , Exercício Físico , Humanos , Masculino , Músculo Quadríceps
15.
Int J Biol Sci ; 17(9): 2278-2293, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34239355

RESUMO

Effectively targeting cancer stem cells to treat cancer has great therapeutic prospects. However, the effect of microRNA miR-17/MKL-1 on gastric cancer stem cells has not been studied yet. This study preliminarily explored the mechanism of miR-17/MKL-1 in gastric cancer stem cells. Many previous reports have indicated that microRNA and EMT regulated cancer stem cell characteristics, and miR-17 and MKL-1 were involved as a critical gene in migration and invasion in the EMT pathway. Through RT-PCR, Western Blot, flow cytometry, immunofluorescence, sphere formation xenograft tumor assays and drug resistance, the role of miR-17-5p and MKL-1 on promoting stem cell-like properties of gastric cancer were verified in vivo and vitro. Next, MKL-1 targets CD44, EpCAM, and miR -17-5p promoter verified by luciferase assay and ChIP. Besides, the TCGA database analysis found that both miR-17-5p and MKL-1 increased in gastric cancer, and the prognostic survival of the MKL-1 high expression group was reduced. It is found that MKL-1 promotes expression by targeting miR-17, CD44 and EpCAM promoters. Besides, the TCGA database analysis found that both miR-17-5p and MKL-1 increased in gastric cancer, and the prognostic survival of the MKL-1 high expression group was reduced. These findings reveal new regulatory signaling pathways for gastric cancer stem cells, thus it give new insights on potential early diagnosis and/or molecular therapy for gastric cancer.


Assuntos
MicroRNAs/metabolismo , Células-Tronco Neoplásicas/patologia , Neoplasias Gástricas/patologia , Transativadores/metabolismo , Animais , Linhagem Celular Tumoral , Regulação Neoplásica da Expressão Gênica , Humanos , Receptores de Hialuronatos/metabolismo , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Nus , MicroRNAs/genética , Prognóstico , Regiões Promotoras Genéticas , Transdução de Sinais , Neoplasias Gástricas/genética , Neoplasias Gástricas/metabolismo , Transativadores/genética , Ensaios Antitumorais Modelo de Xenoenxerto
16.
Chem Commun (Camb) ; 57(56): 6907-6910, 2021 Jul 13.
Artigo em Inglês | MEDLINE | ID: mdl-34151913

RESUMO

Five new zero-dimensional hybrid manganese halides based on discrete [MnCl4]2- tetrahedrons were prepared and used as highly efficient green-light emitters. Through rational management of organic cations to tailor the MnMn separation distances between neighboring [MnCl4]2- tetrahedrons, the photoluminescence quantum yield increased significantly from 7.98% to 81.11%.

17.
Shanghai Kou Qiang Yi Xue ; 30(2): 145-150, 2021 Apr.
Artigo em Chinês | MEDLINE | ID: mdl-34109352

RESUMO

PURPOSE: To explore the DSA classification and treatment strategy of tongue venous malformation. METHODS: From February 2016 to February 2019, the DSA manifestations of 132 cases with venous malformations of the tongue were summarized. They were classified into 4 types according to imaging characteristics: typeⅠ(non-drainage type), typeⅡ(lower- drainage type), type Ⅲ (higher-drainage type), type Ⅳ(extensive type). Different therapeutic schemes were selected according to the types. The non- drainage type was treated with pingyangmycin alone, the lower-drainage type was treated with lauromacrogol foam alone, the higher- drainage type was treated with absolute alcohol combined with lauromacrogol foam, the extensive type was treated as higher-drainage type first and then combined with plastic resection. Among the cases, therapeutic effects and adverse reactions of each group were recorded and compared. RESULTS: One hundred and thirty-two cases in this study were followed up for 12 to 41 months with an average of 15.8 months. After sclerosing therapy, the venous malformations of the tongue of all patients significantly reduced or even disappeared. Type Ⅰincluded 8 cases with an efficiency of 100%, type Ⅱ included 17 cases with an efficiency of 100%, type Ⅲ included 98 cases with an efficiency of 90.8%, typeⅣincluded 9 cases, with an efficiency of 77.8%.The main adverse reactions were tissue necrosis: 0 in typeⅠ, 1(5.88%) in typeⅡ, 16(16.33%) in type Ⅲ, and 7(77.78%) in type Ⅳ. CONCLUSIONS: The classification of venous malformations of the tongue based on DSA is significant and valuable in guiding clinical treatment. The majority of tongue venous malformations are type Ⅲ, and the smallest propotion is type Ⅰ. Transmucosal sclerotherapy with absolute ethanol is of significance for the treatment of venous malformations of the tongue classified in type Ⅲ and type Ⅳ.


Assuntos
Soluções Esclerosantes , Malformações Vasculares , Humanos , Soluções Esclerosantes/uso terapêutico , Escleroterapia , Língua/diagnóstico por imagem , Resultado do Tratamento , Malformações Vasculares/tratamento farmacológico , Malformações Vasculares/terapia
18.
Aging (Albany NY) ; 13(10): 13876-13897, 2021 05 07.
Artigo em Inglês | MEDLINE | ID: mdl-33962392

RESUMO

Bladder cancer (BLCA) is one of the common malignant tumors of the urinary system. The poor prognosis of BLCA patients is due to the lack of early diagnosis and disease recurrence after treatment. Increasing evidence suggests that gene products of the nuclear factor of activated T-cells (NFAT) family are involved in BLCA progression and subsequent interaction(s) with immune surveillance. In this study, we carried out a pan-cancer analysis of the NFAT family and found that NFAT2 is an independent prognostic factor for BLCA. We then screened for differentially expressed genes (DEGs) and further analyzed such candidate gene loci using gene ontology enrichment to curate the KEGG database. We then used Lasso and multivariate Cox regression to identify 4 gene loci (FER1L4, RNF128, EPHB6, and FN1) which were screened together with NFAT2 to construct a prognostic model based on using Kaplan-Meier analysis to predict the overall survival of BLCA patients. Moreover, the accuracy of our proposed model is supported by deposited datasets in the Gene Expression Omnibus (GEO) database. Finally, a nomogram of this prognosis model for BLCA was established which could help to provide better disease management and treatment.


Assuntos
Modelos Biológicos , Fatores de Transcrição NFATC/metabolismo , Neoplasias da Bexiga Urinária/diagnóstico , Neoplasias da Bexiga Urinária/metabolismo , Linhagem Celular Tumoral , Perfilação da Expressão Gênica , Regulação Neoplásica da Expressão Gênica , Ontologia Genética , Humanos , Estimativa de Kaplan-Meier , Fatores de Transcrição NFATC/genética , Oncogenes , Prognóstico , Modelos de Riscos Proporcionais , Mapas de Interação de Proteínas/genética , Reprodutibilidade dos Testes , Fatores de Risco , Neoplasias da Bexiga Urinária/genética , Neoplasias da Bexiga Urinária/patologia
19.
Int J Med Sci ; 18(4): 964-974, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33456354

RESUMO

Endothelial cell proliferation disorder caused by vascular injury seems to be one of the causes of atherosclerosis, which is the pathological basis of coronary heart disease. The role of STAT3 in the regulation of microRNAs and endothelial dysfunction in atherosclerosis is unclear. STAT3 can be activated by cytokine IL-6 and up regulate the expression of CX3CL1. In addition, microRNA-15a-5p (miR-15a-5p) inhibited the transcription of CX3CL1, the proliferation of vascular endothelial cells and the proliferation of STAT3 regulated vascular endothelial cells. STAT3 positively regulates the expression of CX3CL1, and then down-regulates the inhibition of CX3CL1 by over-expression of miR-15a-5p, thus forming an elimination feedback loop to control the proliferation of HUVECs and affect the progression of atherosclerosis. In conclusion, miR-15a-5p may be the therapeutic target of the pathological basis of coronary atherosclerosis.


Assuntos
Aterosclerose/genética , Quimiocina CX3CL1/genética , Endotélio Vascular/patologia , MicroRNAs/metabolismo , Fator de Transcrição STAT3/metabolismo , Animais , Aterosclerose/sangue , Aterosclerose/patologia , Linhagem Celular , Movimento Celular/genética , Proliferação de Células/genética , Quimiocina CX3CL1/sangue , Quimiocina CX3CL1/metabolismo , Modelos Animais de Doenças , Regulação para Baixo , Endotélio Vascular/citologia , Retroalimentação Fisiológica , Células Endoteliais da Veia Umbilical Humana , Humanos , Camundongos Knockout para ApoE , MicroRNAs/genética , Fator de Transcrição STAT3/genética , Regulação para Cima , Fator A de Crescimento do Endotélio Vascular/sangue , Fator A de Crescimento do Endotélio Vascular/metabolismo
20.
Medicine (Baltimore) ; 99(44): e22861, 2020 Oct 30.
Artigo em Inglês | MEDLINE | ID: mdl-33126329

RESUMO

The lack of effective markers leads to missed optimal treatment times, resulting in poorer prognosis in most cancers. Drosophila mothers against decapentaplegic protein (SMAD) family members are important cytokines in the transforming growth factor-beta family. They jointly regulate the processes of cell growth, differentiation, and apoptosis. However, the expression of SMAD family genes in pan-cancers and their impact on prognosis have not been elucidated. Perl software and R software were used to perform expression analysis and survival curve analysis on the data collected by TCGA, GTEx, and GEO, and the potential regulatory pathways were determined through gene ontology enrichment and kyoto encyclopedia of genes and genomes enrichment analysis. It was found that SMAD7 and SMAD9 expression decreased in lung adenocarcinoma (LUAD), and their expression was positively correlated with survival time. Additionally, SMAD7 could be used as an independent prognostic factor for LUAD. In general, SMAD7 and SMAD9 can be used as prognostic markers of LUAD. Further, SMAD7 is expected to become a therapeutic target for LUAD.


Assuntos
Adenocarcinoma de Pulmão/genética , Prognóstico , Proteína Smad7/análise , Biomarcadores Tumorais/análise , Biomarcadores Tumorais/sangue , Expressão Gênica/genética , Humanos , Proteína Smad7/sangue
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