Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 14 de 14
Filtrar
Mais filtros











Base de dados
Intervalo de ano de publicação
1.
World J Gastrointest Surg ; 16(6): 1647-1659, 2024 Jun 27.
Artigo em Inglês | MEDLINE | ID: mdl-38983313

RESUMO

BACKGROUND: The neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) are novel inflammatory indicators that can be used to predict the severity and prognosis of various diseases. We categorize acute pancreatitis by etiology into acute biliary pancreatitis (ABP) and hypertriglyceridemia-induced acute pancreatitis (HTGP). AIM: To investigate the clinical significance of NLR and PLR in assessing persistent organ failure (POF) in HTGP and ABP. METHODS: A total of 1450 patients diagnosed with acute pancreatitis (AP) for the first time at Shanxi Bethune Hospital between January 2012 and January 2023 were enrolled. The patients were categorized into two groups according to the etiology of AP: ABP in 530 patients and HTGP in 241 patients. We collected and compared the clinical data of the patients, including NLR, PLR, and AP prognostic scoring systems, within 48 h of hospital admission. RESULTS: The NLR (9.1 vs 6.9, P < 0.001) and PLR (203.1 vs 160.5, P < 0.001) were significantly higher in the ABP group than in the HTGP group. In the HTGP group, both NLR and PLR were significantly increased in patients with severe AP and those with a SOFA score ≥ 3. Likewise, in the ABP group, NLR and PLR were significantly elevated in patients with severe AP, modified computed tomography severity index score ≥ 4, Japanese Severity Score ≥ 3, and modified Marshall score ≥ 2. Moreover, NLR and PLR showed predictive value for the development of POF in both the ABP and HTGP groups. CONCLUSION: NLR and PLR vary between ABP and HTGP, are strongly associated with AP prognostic scoring systems, and have predictive potential for the occurrence of POF in both ABP and HTGP.

2.
Front Oncol ; 14: 1370111, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38567163

RESUMO

Periampullary cancer is a malignant tumor occurring around the ampullary region of the liver and pancreas, encompassing a variety of tissue types and sharing numerous biological characteristics, including interactions with the nervous system. The nervous system plays a crucial role in regulating organ development, maintaining physiological equilibrium, and ensuring life process plasticity, a role that is equally pivotal in oncology. Investigations into nerve-tumor interactions have unveiled their key part in controlling cancer progression, inhibiting anti-tumor immune responses, facilitating invasion and metastasis, and triggering neuropathic pain. Despite many mechanisms by which nerve fibers contribute to cancer advancement still being incompletely understood, the growing emphasis on the significance of nerves within the tumor microenvironment in recent years has set the stage for the development of groundbreaking therapies. This includes combining current neuroactive medications with established therapeutic protocols. This review centers on the mechanisms of Periampullary cancer's interactions with nerves, the influence of various types of nerve innervation on cancer evolution, and outlines the horizons for ongoing and forthcoming research.

3.
Adv Biol (Weinh) ; 8(2): e2300301, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37863815

RESUMO

Liver cancer is one of the most common malignant tumors in the world, and its incidence and mortality are increasing year by year. The prognosis of liver cancer depends on the stage of liver cancer, the treatment method, the liver function, and individual differences. The prognosis of liver cancer mainly worsens with the progression of the stage. The prediction and staging system of liver cancer prognosis plays a very important role in the outcome of liver cancer prognosis, providing some guidance for clinical practice and bringing benefits for patients. This article reports on the prediction models and staging systems that have been applied in the field of liver cancer in the past 5 years, objectively analyzes the advantages and disadvantages, applicable population of each model and staging system, and searches for other patient and clinical characteristics that need to be considered for successfully establishing a prediction model, aiming to improve the specificity, sensitivity, and accuracy of liver cancer prediction and increase the overall survival rate of liver cancer.


Assuntos
Neoplasias Hepáticas , Humanos , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/terapia , Prognóstico
4.
SAGE Open Med Case Rep ; 11: 2050313X231207562, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37901593

RESUMO

Vanishing bile duct syndrome is a rare clinical manifestation, and many clinicians tend to classify vanishing bile duct syndrome as a surgical disease and perform emergency surgery, leading to poor prognosis for patients. In this report, we present a case of a patient initially diagnosed with probable vanishing bile duct syndrome. However, through a meticulous step-by-step investigation, we ultimately determined that the patient was suffering from Brucella infection-induced hemophagocytic syndrome, which contributed to the development of the probable vanishing bile duct syndrome. Once a definitive diagnosis was established, the patient underwent treatment following anti-Brucella and Hemophagocytic lymphohistiocytosis-2004 protocols, leading to an improvement in the patient's condition. We conducted a literature review on brucellosis, and it demonstrated the lack of specificity in diagnosing Brucella infections and the diverse range of clinical manifestations. Failure to arrive at a definitive diagnosis may result in clinical misdiagnosis and delayed treatment, thereby leading to grave consequences.

5.
Front Oncol ; 13: 1179947, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37152054

RESUMO

The ubiquitous expressed transcript (UXT), a member of the prefoldin-like protein family, modulates regulated cell death (RCD) such as apoptosis and autophagy-mediated cell death through nuclear factor-κB (NF-κB), tumor necrosis factor-α (TNF-α), P53, P62, and methylation, and is involved in the regulation of cell metabolism, thereby affecting tumor progression. UXT also maintains immune homeostasis and reduces proteotoxicity in neuro-degenerative diseases through selective autophagy and molecular chaperones. Herein, we review and further elucidate the mechanisms by which UXT affects the regulation of cell death, maintenance of immune homeostasis, and neurodegenerative diseases and discuss the possible UXT involvement in the regulation of ferroptosis and immunogenic cell death, and targeting it to improve cancer treatment outcomes by regulating cell death and immune surveillance.

6.
Anticancer Drugs ; 33(10): 1103-1113, 2022 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-36255069

RESUMO

Chemoresistance has limited clinical treatment of cancer patients. This study aimed to research the regulatory function of circ_0003998 in 5-Fluorouracil (5-FU) resistance. Circ_0003998, microRNA-513a-5p (miR-513a-5p) and AMPK-Related Protein Kinase 5 (ARK5) levels were assayed via the quantitative reverse transcription-PCR. Colony formation ability was assessed by colony formation assay. Flow cytometry was performed for cell cycle and cell apoptosis analysis. Caspase-3 activity was detected using a caspase-3 activity assay. Target analysis was conducted via RNA pull-down assay, a dual-luciferase reporter assay, and an RNA immunoprecipitation assay. In-vivo assay was performed by establishing a xenograft model in mice. Circ_0003998 was upregulated in 5-FU-resistant hepatocellular carcinoma (HCC) tissues and cells. Circ_0003998 downregulation repressed 5-FU resistance and cancer progression in 5-FU-resistant HCC cells. Circ_0003998 interacted with miR-513a-5p. Inhibition of miR-513a-5p reversed the regulation of sh-circ_0003998 in 5-FU resistance. ARK5 was a target of miR-513a-5p, and ARK5 was regulated by circ_0003998 via targeting miR-513a-5p. Circ_0003998 regulated 5-FU resistance partly by upregulating ARK5 expression. 5-FU sensitivity was enhanced after circ_0003998 level reduction in vivo. These findings unraveled that circ_0003998 elevated 5-FU resistance in HCC by sponging miR-513a-5p to upregulate the level of ARK5, indicating that circ_0003998 might be used as a target to improve 5-FU therapy for HCC.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , MicroRNAs , Proteínas Quinases , Proteínas Repressoras , Animais , Humanos , Camundongos , Proteínas Quinases Ativadas por AMP/metabolismo , Carcinoma Hepatocelular/tratamento farmacológico , Carcinoma Hepatocelular/genética , Caspase 3/metabolismo , Proliferação de Células/fisiologia , Fluoruracila/farmacologia , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/genética , MicroRNAs/genética , Proteínas Quinases/genética , Proteínas Repressoras/genética
7.
Future Oncol ; 18(29): 3335-3348, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-36000398

RESUMO

UXT is widely expressed in human and mouse tissues and aberrantly expressed in various tumor tissues. UXT may play a pro-cancer or tumor suppressor role in different tumor types and microenvironments with different mechanisms of action. Studies have shown that UXT can interact with related receptors to exert its functions and affect tumor proliferation and metastasis, leading to a poor prognosis when the biological functions of these tumors are changed. Interestingly, the signaling pathways and mechanism-related molecules that interact with UXT are closely related to the occurrence of hepatocellular carcinoma (HCC) during disease progression. This article reviews the research progress of UXT and prospects for its application in HCC, with the aim of providing possible scientific suggestions for the basic research, diagnosis and treatment of HCC.


Patients with hepatocellular carcinoma (HCC) have a poor overall prognosis. Surgical resection is the preferred treatment option for HCC; however, most patients are already in the middle and late stages of the disease at the time of diagnosis. Surgical resection cannot achieve a therapeutic effect, and targeted therapy has become a feasible alternative. In this review we summarize the expression and mechanisms of action of the protein UXT in a variety of tumors and discuss its potential for future development as a therapeutic target to further improve the targeted therapy of HCC.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Animais , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/terapia , Proteínas de Ciclo Celular/metabolismo , Linhagem Celular Tumoral , Proliferação de Células , Regulação Neoplásica da Expressão Gênica , Humanos , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/terapia , Camundongos , Chaperonas Moleculares/metabolismo , Prognóstico , Transdução de Sinais/fisiologia , Microambiente Tumoral/genética
8.
Int J Gen Med ; 15: 3077-3096, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35330878

RESUMO

Background: Pancreatic cancer is a common malignant tumor. Multiple studies have shown that procollagen lysyl-hydroxylase (PLOD) family genes were closely related to tumor progression and metastasis in a variety of human cancers. This study aimed to explore the prognosis and biological role of PLOD family genes in pancreatic adenocarcinoma (PAAD). Methods: GEPIA, GEO, HPA, CCLE, Kaplan-Meier plotter, cBioPortal, LinkedOmics, DAVID6.8, STRING, and TIMER were employed to determine the prognostic values and biological function of PLOD family members in PAAD. Results: The mRNA and protein expression patterns of PLOD family members were noticeably up-regulated in PAAD compared with normal tissues. PLOD family gene expression was also up-regulated in pancreatic cancer cell lines. PLOD1 was correlated with histological and pathological grades of pancreatic cancer. PLOD2 was related to histological grade. The high expression of PLOD1-2 was correlated with the poor overall survival rate and relapse-free survival rate in patients with PAAD. Additionally, PLODs showed high sensitivity and specificity in distinguishing pancreatic cancer from normal tissues. Through the functional enrichment analysis of PLOD-related genes in PAAD, we found that PLODs were enriched in collagen fiber tissue structure, lysine degradation, and collagen biosynthesis. Pathway analysis confirmed that PLODs regulated the proliferation, migration, and metastasis of pancreatic cancer through the RalGEF-Ral signaling pathway. Furthermore, the level of expression of PLOD1-2 was positively correlated with the activity of tumor-infiltrating immune cells, including CD8+T cells, neutrophils, macrophages, and dendritic cells. The level of expression of PLOD3 was inversely correlated with the level of infiltration of CD8+T cells. PLOD1 and PLOD2 were highly expressed in pancreatic cancer tissues with TP53 and KRAS mutations, respectively. However, the level of expression of PLOD3 in SMAD4 wild-type pancreatic cancer was increased. Conclusion: The findings showed that individual PLOD genes or PLOD family genes could be potential prognostic biomarkers for PAAD.

10.
Oncol Lett ; 22(2): 626, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-34267818

RESUMO

Aberrant expression of fibroblast growth factor 2 (FGF2) is a major cause of poor prognosis in patients with pancreatic cancer. MicroRNA (miRNA/miR) miR-203-3p is a newly identified miRNA that can affect the biological behavior of tumors. The present study investigated the function of miR-203-3p on the regulation of FGF2 expression, and its role in pancreatic cancer cell proliferation, apoptosis, invasion and migration. Reverse transcription-quantitative PCR was used to determine the mRNA expression levels of miR-203-3p and FGF2 in vitro. Cell Counting Kit-8, Annexin V-APC/7-AAD double-staining Apoptosis Detection kit, wound healing and Transwell assays were used to determine the proliferation, apoptosis, migration and invasion of pancreatic cancer cells. The binding of miR-203-3p to FGF2 was assessed by a luciferase reporter assay. The results demonstrated that miR-203-3p expression was downregulated in pancreatic cancer cells. Gain- and loss-of-function experiments indicated that miR-203-3p inhibited the proliferation, migration and invasion, and promoted the apoptosis of pancreatic cancer cells in vitro. In addition, it was found that alteration of miR-203-3p abolished the promoting effects of FGF2 on pancreatic cancer cells. The present study demonstrated that FGF2 significantly promoted the proliferation, invasion and migration of pancreatic cancer cells. The mechanism involved the binding of miR-203-3p to the 3'-untranslated region of FGF2 mRNA, resulting in the downregulation of FGF2. In conclusion, miR-203-3p inhibited FGF2 expression, regulated the proliferation and inhibited the invasion and migration of pancreatic cancer cells.

11.
DNA Cell Biol ; 2020 Oct 20.
Artigo em Inglês | MEDLINE | ID: mdl-33085544

RESUMO

The carbon catabolite repressor 4-negative on TATA (CCR4-NOT) complex, abbreviated CNOT, has deadenylation and 3'-5' exonuclease activity, mediates deadenylation in the degradation of RNA, initiates the exonuclease degradation pathway, and participates in tumor gene regulation. CNOT proteins comprise a family of global transcriptional regulators that are evolutionarily conserved in eukaryotic cells. Several subunit types of the CNOT complex have been discovered; however, little is known about the role of different subunits in tumorigenesis and development. We observed overexpression of CNOT1-11 in liver cancer and correlations with clinicopathological characteristics. The expression of some CNOTs subunits was associated with histological grades, lymph node metastasis, and tumor stages in patients with hepatocellular carcinoma (HCC). Our data suggested that some CNOTs can be used as predictors of poor prognosis in HCC patients. At the same time, we conducted an analysis of CNOTs mutations in HCC patients. Moreover, we selected CNOT6, CNOT10, and CNOT11 for protein interaction network analysis and Gene Ontology enrichment analysis to investigate their related biological processes and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways. Finally, the results of western blot and quantitative reverse transcription-PCR (qRT-PCR) experiments were consistent with the database findings. Results of this study suggest that CNOT6, CNOT10, and CNOT11, acting as regulators of transcription, may play an important role in the development of HCC and may serve as biological markers in the diagnosis and prognosis of HCC.

12.
FEBS Open Bio ; 10(5): 847-860, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-32160402

RESUMO

A major obstacle to effective cancer immunotherapy is the tumor immune microenvironment. Natural killer (NK) cell resistance has been suggested as a primary cause of poor prognosis in hepatocellular carcinoma (HCC), which seemingly correlates with CNOT7 overexpression. CNOT7, a cytoplasmic mRNA deadenylase that is highly expressed in HCC, may regulate cytokine transforming growth factor-ß1 (TGF-ß1) secretion by controlling nuclear factor-κB subunit p65 trafficking. CNOT7 depletion suppresses TGF-ß1 secretion in HCC and promotes interferon-γ (IFN-γ) secretion by NK cells, and we previously demonstrated that CNOT7 depletion reversed IFN-γ resistance in HCC cells. Therefore, we hypothesized that CNOT7 depletion might reverse NK cell resistance by influencing the tumor immune microenvironment of HCC. To test this hypothesis, we examined the correlation between CNOT7, STAT1, TGF-ß1 and IFN-γ expression with hepatitis B virus-related cirrhosis and HCC with hepatitis B virus-related cirrhosis. We found that modulation of CNOT7 expression alters TGF-ß1 secretion in HCC and IFN-γ secretion in NK cells. We also examined the effects of NK cells in HepG2 cells with CNOT7 knockdown, which showed that NK cell surface CD107a expression is up-regulated and caspase-3 expression is significantly enhanced in CNOT7-deficient HepG2 cells. Overall, our results show that knockdown of CNOT7 expression reverses NK cell resistance in HCC cells. Therefore, CNOT7 depletion has potential as a new adjuvant therapy in immunotherapy for HCC.


Assuntos
Carcinoma Hepatocelular/imunologia , Exorribonucleases/metabolismo , Proteínas Repressoras/metabolismo , Microambiente Tumoral/imunologia , Adulto , Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/patologia , Movimento Celular/genética , Proliferação de Células/genética , China , Exorribonucleases/fisiologia , Feminino , Expressão Gênica/genética , Células Hep G2 , Humanos , Interferon gama/metabolismo , Células Matadoras Naturais/citologia , Células Matadoras Naturais/imunologia , Cirrose Hepática/genética , Cirrose Hepática/metabolismo , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/imunologia , Neoplasias Hepáticas/patologia , Masculino , Pessoa de Meia-Idade , Proteínas Repressoras/fisiologia , Fator de Transcrição STAT1/metabolismo , Fator de Transcrição RelA/metabolismo , Fator de Crescimento Transformador beta1/metabolismo
13.
Oncol Lett ; 19(1): 211-220, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31897132

RESUMO

Pancreatic cancer is characterized by the absence of early specific clinical symptoms, accompanied with rapid metastasis and invasion. It is one of the most prevalent types of cancer and more importantly, one of the most common types of malignant cancer with the highest mortality rate of all cancer types. The heparanase (HPA)/syndecan-1 (SDC1) axis has been reported to promote tumor growth, invasion, metastasis and angiogenesis in a variety of cancer types; however, studies into the role and mechanism of the HPA/SDC1 axis in pancreatic cancer are limited. The present study aimed to investigate the biological function and clinical significance of the HPA/SDC1 axis in pancreatic cancer. The results demonstrated that HPA is elevated in pancreatic cancer tissues and cell lines, and that its high expression was associated with poor prognosis. HPA was revealed to mediate an increase in fibroblast growth factor 2 (FGF2) expression by upregulating the expression of SDC1. Conversely, silencing HPA mediated the suppression of FGF2 expression. Furthermore, upregulated FGF2 was observed to increase the expression of downstream Palladin proteins by activating the PI3K/Akt signaling pathway and also lead to the activation of epithelial-mesenchymal transition (EMT). Subsequently, EMT was found to promote the migration and invasion of pancreatic cancer cells. In summary, the HPA/SDC1 axis was revealed to serve an important role in the regulation of FGF2, and was found to promote the invasion and metastasis of pancreatic cancer cells. These findings indicated that the HPA/SDC1 axis may be used as an effective therapeutic target for pancreatic cancer.

14.
Int J Surg Case Rep ; 61: 218-221, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31377548

RESUMO

INTRODUCTION: Extrahepatic biliary non-Hodgkin's lymphoma (EBNHL) is rare, with a prevalence of 0.6% of malignant biliary tumors. Primary biliary non-Hodgkin's lymphoma accounts for 0.4% of extranodal non-Hodgkin's lymphoma (NHL), accounting for approximately 0.016% of all NHL cases. The patient presented with typical bile duct disappearance syndrome. The late performance is a bloodthirsty syndrome. PRESENTATION OF CASE: This patient was admitted to the hospital with "intermittent fever, abdominal pain for 19 days". The relevant laboratory tests showed severe infection. The patients were treated according to abdominal infection, and then laparoscopic cholecystectomy was performed. After the operation, the patient's condition did not relieve and further deteriorated. Postoperative patient performance was not based on preoperative estimates, and surgery did not achieve the desired results. Postoperative pathological diagnosis confirmed gallbladder non-Hodgkin's lymphoma. The patient eventually died. DISCUSSION: Non-calculus inflammation occurs more frequently in the gallbladder. Non-calculus infections are generally caused by bile stasis and ischemia, resulting in bacterial reproduction and reduced blood supply, and gangrene and perforation of the gallbladder are more likely to occur. This patient is also diagnosed and treated according to this idea. The development after surgery completely exceeded our expectations. Gallbladder non-Hodgkin's lymphoma is very rare, and this case also includes hemophagocytic syndrome and bile duct disappearance syndrome, which is rare. CONCLUSION: Malignant lymphoma of the extrahepatic biliary system is extremely rare, and its clinical manifestations are easily misdiagnosed. At the same time, non-calculous cholecystitis with fever, jaundice and hepatosplenomegaly should be considered.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA