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1.
Endocr Regul ; 58(1): 101-104, 2024 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-38656253

RESUMO

Diabetes mellitus type 3 refers to diabetes secondary to an existing disease or condition of the exocrine pancreas and is an uncommon cause of diabetes occurring due to pancreatogenic pathology. It accounts for 15-20% of diabetic patients in Indian and Southeast Asian continents. This is case report of a rare case of type 3 diabetes mellitus (T3DM) presenting with diabetic ketoacidosis (DKA). The patient was admitted for DKA along with complaint of hyperglycemia, blood glucose of 405 mg/dl with HbA1c level of 13.7%. Computed tomography evidence revealed chronic calcific pancreatitis with intraductal calculi and dilated pancreatic duct.


Assuntos
Calcinose , Cálculos , Cetoacidose Diabética , Ductos Pancreáticos , Pancreatite Crônica , Humanos , Cetoacidose Diabética/complicações , Cetoacidose Diabética/diagnóstico , Pancreatite Crônica/complicações , Pancreatite Crônica/diagnóstico , Pancreatite Crônica/diagnóstico por imagem , Cálculos/complicações , Cálculos/diagnóstico por imagem , Cálculos/diagnóstico , Ductos Pancreáticos/patologia , Ductos Pancreáticos/diagnóstico por imagem , Calcinose/etiologia , Calcinose/diagnóstico , Calcinose/complicações , Calcinose/diagnóstico por imagem , Masculino , Adulto , Tomografia Computadorizada por Raios X
2.
BMC Cancer ; 24(1): 478, 2024 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-38622651

RESUMO

BACKGROUND: Pancreatic cancer is the foremost contributor to cancer-related deaths globally, and its prevalence continues to rise annually. Nevertheless, the underlying mechanisms behind its development remain unclear and necessitate comprehensive investigation. METHODS: In this study, a total of 29 fresh stool samples were collected from patients diagnosed with pancreatic cancer. The gut microbial data of healthy controls were obtained from the SRA database (SRA data number: SRP150089). Additionally, 28 serum samples and diseased tissues were collected from 14 patients with confirmed pancreatic cancer and 14 patients with chronic pancreatitis. Informed consent was obtained from both groups of patients. Microbial sequencing was performed using 16s rRNA. RESULTS: The results showed that compared with healthy controls, the species abundance index of intestinal flora in patients with pancreatic cancer was increased (P < 0.05), and the number of beneficial bacteria at the genus level was reduced (P < 0.05). Compared with patients with chronic pancreatitis, the expression levels of CA242 and CA199 in the serum of patients with pancreatic cancer were increased (P < 0.05). The bacterial richness index of tumor microorganisms in patients with pancreatic cancer increased, while the diversity index decreased(P < 0.05). Furthermore, there was a change in the species composition at the genus level. Additionally, the expression level of CA242 was found to be significantly positively correlated with the relative abundance of Acinetobacter(P < 0.05). CONCLUSION: Over all, the expression levels of serum tumor markers CA242 and CA19-9 in patients with pancreatic cancer are increased, while the beneficial bacteria in the intestine and tumor microenvironment are reduced and pathogenic bacteria are increased. Acinetobacter is a specific bacterial genus highly expressed in pancreatic cancer tissue.


Assuntos
Microbiota , Neoplasias Pancreáticas , Pancreatite Crônica , Humanos , Antígenos Glicosídicos Associados a Tumores , RNA Ribossômico 16S/genética , Neoplasias Pancreáticas/diagnóstico , Bactérias/genética , Pancreatite Crônica/genética , Microambiente Tumoral
3.
Cell Transplant ; 33: 9636897241243014, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38659255

RESUMO

Stress-induced islet graft loss during the peri-transplantation period reduces the efficacy of islet transplantation. In this prospective, randomized, double-blind clinical trial, we evaluated the safety and efficacy of 60 mg/kg human alpha-1 antitrypsin (AAT) or placebo infusion weekly for four doses beginning before surgery in chronic pancreatitis (CP) patients undergoing total pancreatectomy and islet autotransplantation (TP-IAT). Subjects were followed for 12 months post-TP-IAT. The dose of AAT was safe, as there was no difference in the types and severity of adverse events in participants from both groups. There were some biochemical signals of treatment effect with a higher oxygen consumption rate in AAT islets before transplantation and a lower serum C-peptide (an indicator of islet death) in the AAT group at 15 min after islet infusion. Findings per the statistical analysis plan using a modified intention to treat analysis showed no difference in the C-peptide area under the curve (AUC) following a mixed meal tolerance test at 12 months post-TP-IAT. There was no difference in the secondary and exploratory outcomes. Although AAT therapy did not show improvement in C-peptide AUC in this study, AAT therapy is safe in CP patients and there are experiences gained on optimal clinical trial design in this challenging disease.


Assuntos
Transplante das Ilhotas Pancreáticas , Pancreatectomia , Pancreatite Crônica , Transplante Autólogo , alfa 1-Antitripsina , Humanos , Transplante das Ilhotas Pancreáticas/métodos , Pancreatite Crônica/cirurgia , Pancreatite Crônica/terapia , alfa 1-Antitripsina/uso terapêutico , Masculino , Feminino , Pancreatectomia/métodos , Pessoa de Meia-Idade , Transplante Autólogo/métodos , Adulto , Método Duplo-Cego , Peptídeo C/sangue , Peptídeo C/metabolismo , Estudos Prospectivos
4.
Am J Case Rep ; 25: e942725, 2024 Apr 14.
Artigo em Inglês | MEDLINE | ID: mdl-38615191

RESUMO

BACKGROUND Pancreatic calculi (PC) or pancreatolithiasis refers to the presence of stones in the main pancreatic duct (MPD), side branches, or parenchyma of the pancreas. It is highly associated with chronic pancreatitis (CP), and is present in 50-90% of those patients. The stone formation can be attributed to a diversity of factors, all of them leading to obstruction in the duct, hypertension of its distal part, increased intraductal and parenchymal pressure, and inflammation, causing the standard symptom, epigastric pain. Immediate restoration of pancreatic secretion flow is of utmost importance and can be achieved with both endoscopic and surgical techniques. Endoscopic techniques include endoscopic retrograde cholangiopancreatography (ERCP) combined, if possible, with extracorporeal shock wave lithotripsy (ESWL), while surgical techniques consist of drainage and resection procedures. The choice of treatment for PC depends on the location, size, and number of stones, and the existence of other complications. CASE REPORT We present 2 cases that were diagnosed with PC, in which clinical symptoms, laboratory results, and imaging examinations were different, suggesting the variety of manifestations pancreatolithiasis can cause. Each patient was treated differently, according to their clinical situation and the presence or absence of complications. Both patients were discharged and fully recovered. CONCLUSIONS The management of pancreatolithiasis can be demanding in some cases, mostly when there are complications. The purpose of this case report is to indicate the importance of personalized treatment for each patient, as different approaches to the same medical condition should be easily identified and successfully treated.


Assuntos
Litotripsia , Pancreatopatias , Pancreatite Crônica , Humanos , Pancreatopatias/terapia , Pancreatite Crônica/diagnóstico , Pancreatite Crônica/terapia , Pâncreas , Colangiopancreatografia Retrógrada Endoscópica
5.
Am Fam Physician ; 109(3): 245-250, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38574214

RESUMO

Pancreatic cancer is relatively uncommon and carries a poor prognosis because patients often develop signs or symptoms at a late stage of illness. Patients with a family history, especially those with genetic syndromes, are at a significantly increased risk of pancreatic cancer. Modifiable risk factors include smoking, heavy alcohol use, and obesity. Although patients at increased risk should be screened, screening is not recommended for asymptomatic people at average risk. The differential diagnosis for a symptomatic patient is broad, including gastroesophageal reflux disease, gastritis, peptic ulcer disease, chronic pancreatitis, biliary dyskinesia, cholelithiasis, gastroparesis, or constipation. Initial serologic testing should include transaminase and bilirubin levels, and in patients with midepigastric pain, lipase levels. Pancreas-protocol, contrast-enhanced abdominal computed tomography is the imaging test of choice. Carbohydrate antigen 19-9 is the most studied cancer marker and moderately accurate in patients suspected of having cancer; however, the positive predictive value is 0.9% in asymptomatic patients. Treatment includes neoadjuvant or adjuvant chemotherapy and surgery if the cancer is resectable. The treatment approach is best determined by a multidisciplinary, high-volume center. For a patient undergoing chemotherapy, nutritional and psychosocial support and palliation of symptoms should be goals during treatment.


Assuntos
Neoplasias Pancreáticas , Pancreatite Crônica , Humanos , Neoplasias Pancreáticas/diagnóstico , Neoplasias Pancreáticas/terapia , Pâncreas , Fatores de Risco , Pancreatite Crônica/diagnóstico , Pancreatite Crônica/etiologia , Pancreatite Crônica/terapia , Tomografia Computadorizada por Raios X
7.
Sci Rep ; 14(1): 9382, 2024 04 23.
Artigo em Inglês | MEDLINE | ID: mdl-38654064

RESUMO

Acute Pancreatitis (AP) is associated with high mortality and current treatment options are limited to supportive care. We found that blockade of activin A (activin) in mice improves outcomes in two murine models of AP. To test the hypothesis that activin is produced early in response to pancreatitis and is maintained throughout disease progression to stimulate immune cells, we first performed digital spatial profiling (DSP) of human chronic pancreatitis (CP) patient tissue. Then, transwell migration assays using RAW264.7 mouse macrophages and qPCR analysis of "neutrophil-like" HL-60 cells were used for functional correlation. Immunofluorescence and western blots on cerulein-induced pancreatitis samples from pancreatic acinar cell-specific Kras knock-in (Ptf1aCreER™; LSL-KrasG12D) and functional WT Ptf1aCreER™ mouse lines mimicking AP and CP to allow for in vivo confirmation. Our data suggest activin promotes neutrophil and macrophage activation both in situ and in vitro, while pancreatic activin production is increased as early as 1 h in response to pancreatitis and is maintained throughout CP in vivo. Taken together, activin is produced early in response to pancreatitis and is maintained throughout disease progression to promote neutrophil and macrophage activation.


Assuntos
Ativinas , Movimento Celular , Macrófagos , Ativação de Neutrófilo , Pancreatite , Transdução de Sinais , Animais , Ativinas/metabolismo , Camundongos , Humanos , Macrófagos/metabolismo , Macrófagos/imunologia , Pancreatite/metabolismo , Pancreatite/patologia , Neutrófilos/metabolismo , Neutrófilos/imunologia , Modelos Animais de Doenças , Células RAW 264.7 , Ativação de Macrófagos , Células HL-60 , Pancreatite Crônica/metabolismo , Pancreatite Crônica/patologia , Masculino
8.
Front Immunol ; 15: 1326370, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38566993

RESUMO

Background: While a few case-control studies indicated a possible correlation of IgG N-glycosylation patterns with pancreatitis, their restricted sample sizes and methodologies prevented conclusive insights into causality or distinguishing traits across pancreatitis types. Method: We conducted a two-sample Mendelian Randomization (MR) analysis to investigate the causal relationship between 77 IgG N-glycosylation traits and various types of pancreatitis, including acute pancreatitis (AP), chronic pancreatitis (CP), alcohol acute pancreatitis (AAP), and alcohol chronic pancreatitis (ACP). This analysis utilized summary-level data from genome-wide association studies (GWAS), employing methods such as IVW, MR-Egger, and weighted median. To ensure the robustness of our findings, several sensitivity analyses, including Cochran's Q statistic, leave-one-out, MR-Egger intercept, and MR-PRESSO global test were conducted. Result: Our study uncovered the causal relationship between specific IgG N-glycosylation traits and various types of pancreatitis. Notably, an increase in genetically predicted IGP7 levels was associated with a decreased risk of developing AP. For CP, our data suggested a protective effect associated with higher levels of both IGP7 and IGP31, contrasting with increased levels of IGP27 and IGP65, which were linked to a heightened risk. Moreover, in the case of AAP, elevated IGP31 levels were causatively associated with a lower incidence, while higher IGP26 levels correlated with an increased risk for ACP. Conclusion: This study establishes causal relationship between specific IgG N-glycosylation patterns and varying risks of different pancreatitis forms, underscoring their potential as predictive biomarkers. These findings necessitate further exploration into the underlying mechanisms, promising to inform more personalized diagnostic and therapeutic strategies in pancreatitis management.


Assuntos
Imunoglobulina G , Pancreatite Crônica , Humanos , Doença Aguda , Etanol , Estudo de Associação Genômica Ampla , Glicosilação , Pancreatite Crônica/genética , Análise da Randomização Mendeliana
9.
Ann Ital Chir ; 95(1): 17-21, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38469606

RESUMO

OBJECTIVE: The etiology, clinical presentation, diagnosis, and treatment strategies of chronic pancreatitis (CP) vary significantly between countries. Specifically, the etiology and surgical approaches to treating CP differ between China and Western countries. Therefore, this study aims to compare the disparities in CP profiles and management based on our single-center experience and recent data from the West. METHODS: From January 2007 to December 2017, a total of 130 consecutive patients with histologically confirmed chronic pancreatitis (CP) underwent surgical treatment at the First Affiliated Hospital of Nanjing Medical University. The clinical features, etiology, risk factors, and operative procedures of these CP patients were analyzed and compared with recent data from Western countries. RESULTS: Our patient cohort was predominantly male (3.19:1), with a median age of 50.2 ± 9.8 years. Upper abdominal pain was the most common symptom, present in 102 patients (78.5%). The most common etiology was obstructive factors (47.7%), followed by alcohol (34.6%). The incidence of genic mutation was 2%, significantly lower than rates reported in Western research. Steatorrhea, weight loss, and jaundice were present in 6.9%, 18.5%, and 17.7% of patients, respectively. Pancreatic cysts or pseudocysts were diagnosed in 7 patients (5.4%). The following procedures were performed: Partington procedure in 33 patients (25.4%), Frey procedure in 17 patients (13.2%), Berne procedure in 5 patients (3.9%), Beger procedure in 1 patient (0.8%), pancreaticoduodenectomy in 17 patients (13.1%), pylorus-preserving pancreaticoduodenectomy in 18 patients (13.9%), middle pancreatectomy in 1 patient (0.8%), and distal pancreatectomy in 9 patients (6.9%). Choledochojejunostomy was performed in 14 patients (10.8%), gastroenterostomy in 2 (1.5%), and 15 patients (11.5%) underwent aspiration biopsy. CONCLUSION: Our study confirms that, etiologically, obstructive chronic pancreatitis (CP) is more frequent in the Chinese population than in Western populations. Although diagnostic instruments and operative procedures in China and Western countries are roughly comparable, slight differences exist in relation to diagnostic flowcharts/criteria and the indications and optimal timing of surgery.


Assuntos
Pancreatite Crônica , Humanos , Masculino , Adulto , Pessoa de Meia-Idade , Feminino , Pancreatite Crônica/diagnóstico , Pancreatite Crônica/epidemiologia , Pancreatite Crônica/etiologia , Pancreaticoduodenectomia/métodos , Pancreatectomia/métodos , Fatores de Risco , China/epidemiologia , Resultado do Tratamento
10.
Arq Gastroenterol ; 61: e24003, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38451674

RESUMO

BACKGROUND: The treatment of chronic pancreatitis does not consistently solve intestinal abnormalities, and despite the implementation of various therapeutic measures, patients often continue to experience persistent diarrhea. Therefore, it is imperative to recognize that diarrhea may stem from factors beyond pancreatic insufficiency, and intestinal inflammation emerges as a potential contributing factor. OBJECTIVE: The aim of this study was to assess fecal lactoferrin and calprotectin levels as indicators of intestinal inflammation in patients with chronic pancreatitis experiencing persistent diarrhea. METHODS: In this study, 23 male patients with chronic pancreatitis primarily attributed to alcohol consumption and presenting with diarrhea (classified as Bristol stool scale type 6 or 7), underwent a comprehensive evaluation of their clinical and nutritional status. Fecal lactoferrin and calprotectin levels were mea-sured utilizing immunoassay techniques. RESULTS: The average age of the participants was 54.8 years, 43.5% had diabetes, and 73.9% were smokers. Despite receiving enzyme replacement therapy and refraining from alcohol for over 4 years, all participants exhibited persistent diarrhea, accompanied by elevated calprotectin and lactoferrin levels indicative of ongoing intestinal inflammation. CONCLUSION: The findings of this study underscore that intestinal inflammation, as evidenced by elevated fecal biomarkers calprotectin and lactoferrin, may contribute to explaining the persistence of diarrhea in patients with chronic pancreatitis. BACKGROUND: • Exploration of intestinal inflammation in chronic pancreatitis patients with altered bowel habits. BACKGROUND: • Assessment of 23 patients using lactoferrin and calprotectin as intestinal inflammation biomarkers. BACKGROUND: • Intestinal inflammation was detected in all patients; positive correlation between both biomarkers. BACKGROUND: • Established connection between altered bowel habits and intestinal inflammation in chronic pancreatitis.


Assuntos
Lactoferrina , Pancreatite Crônica , Humanos , Masculino , Pessoa de Meia-Idade , Pancreatite Crônica/complicações , Diarreia/etiologia , Complexo Antígeno L1 Leucocitário , Biomarcadores , Inflamação
11.
BMJ Open ; 14(3): e081505, 2024 Mar 21.
Artigo em Inglês | MEDLINE | ID: mdl-38514147

RESUMO

INTRODUCTION: Treatment for abdominal pain in patients with chronic pancreatitis (CP) remains challenging in the setting of central nervous system sensitisation, a phenomenon of remodelling and neuronal hyperexcitability resulting from persistent pain stimuli. This is suspected to render affected individuals less likely to respond to conventional therapies. Endotherapy or surgical decompression is offered to patients with pancreatic duct obstruction. However, the response to treatment is unpredictable. Pancreatic quantitative sensory testing (P-QST), an investigative technique of standardised stimulations to test the pain system in CP, has been used for phenotyping patients into three mutually exclusive groups: no central sensitisation, segmental sensitisation (pancreatic viscerotome) and widespread hyperalgesia suggestive of supraspinal central sensitisation. We will test the predictive capability of the pretreatment P-QST phenotype to predict the likelihood of pain improvement following invasive treatment for painful CP. METHODS AND ANALYSIS: This observational clinical trial will enrol 150 patients from the University of Pittsburgh, Johns Hopkins and Indiana University. Participants will undergo pretreatment phenotyping with P-QST. Treatment will be pancreatic endotherapy or surgery for clearance of painful pancreatic duct obstruction. PRIMARY OUTCOME: average pain score over the preceding 7 days measured by Numeric Rating Scale at 6 months postintervention. Secondary outcomes will include changes in opioid use during follow-up, and patient-reported outcomes in pain and quality of life at 3, 6 and 12 months after the intervention. Exploratory outcomes will include creation of a model for individualised prediction of response to invasive treatment. ETHICS AND DISSEMINATION: The trial will evaluate the ability of P-QST to predict response to invasive treatment for painful CP and develop a predictive model for individualised prediction of treatment response for widespread use. This trial was approved by the University of Pittsburgh Institutional Review Board. Data and results will be reported and disseminated in conjunction with National Institutes of Health policies. TRIAL REGISTRATION NUMBER: NCT04996628.


Assuntos
Pancreatopatias , Pancreatite Crônica , Humanos , Qualidade de Vida , Pancreatite Crônica/complicações , Pancreatite Crônica/cirurgia , Pâncreas/cirurgia , Dor Abdominal/etiologia , Ductos Pancreáticos/cirurgia , Estudos Observacionais como Assunto
12.
Pancreatology ; 24(3): 384-393, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38461145

RESUMO

OBJECTIVE: To investigate profiles of circulating immune signatures in healthy controls and chronic pancreatitis patients (CP) with and without a preceding history of acute pancreatitis (AP). METHODS: We performed a phase 1, cross-sectional analysis of prospectively collected serum samples from the PROspective Evaluation of Chronic Pancreatitis for EpidEmiologic and Translation StuDies (PROCEED) study. All samples were collected during a clinically quiescent phase. CP subjects were categorized into two subgroups based on preceding episode(s) of AP. Healthy controls were included for comparison. Blinded samples were analyzed using an 80-plex Luminex assay of cytokines, chemokines, and adhesion molecules. Group and pairwise comparisons of analytes were performed between the subgroups. RESULTS: In total, 133 patients with CP (111 with AP and 22 without AP) and 50 healthy controls were included. Among the 80 analytes studied, CP patients with a history of AP had significantly higher serum levels of pro-inflammatory cytokines (interleukin (IL)-6, IL-8, IL-1 receptor antagonist, IL-15) and chemokines (Cutaneous T-Cell Attracting Chemokine (CTACK), Monokine induced Gamma Interferon (MIG), Macrophage-derived Chemokine (MDC), Monocyte Chemoattractant Protein-1 (MCP-1)) compared to CP without preceding AP and controls. In contrast, CP patients without AP had immune profiles characterized by low systemic inflammation and downregulation of anti-inflammatory mediators, including IL-10. CONCLUSION: CP patients with a preceding history of AP have signs of systemic inflammatory activity even during a clinically quiescent phase. In contrast, CP patients without a history of AP have low systemic inflammatory activity. These findings suggest the presence of two immunologically diverse subtypes of CP.


Assuntos
Citocinas , Pancreatite Crônica , Humanos , Projetos Piloto , Doença Aguda , Estudos Transversais , Quimiocinas , Interleucina-6
14.
Pancreas ; 53(4): e368-e377, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38518063

RESUMO

ABSTRACT: There exists no cure for acute, recurrent acute or chronic pancreatitis and treatments to date have been focused on managing symptoms. A recent workshop held by the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) focused on interventions that might disrupt or perhaps even reverse the natural course of this heterogenous disease, aiming to identify knowledge gaps and research opportunities that might inform future funding initiatives for NIDDK. The breadth and variety of identified active or planned clinical trials traverses the spectrum of the disease and was conceptually grouped for the workshop into behavioral, nutritional, pharmacologic and biologic, and mechanical interventions. Cognitive and other behavioral therapies are proven interventions for pain and addiction, but barriers exist to their use. Whilst a disease specific instrument quantifying pain is now validated, an equivalent is lacking for nutrition - and both face challenges in ease and frequency of administration. Multiple pharmacologic agents hold promise. Ongoing development of Patient Reported Outcome (PRO) measurements can satisfy Investigative New Drug (IND) regulatory assessments. Despite multiple randomized clinical trials demonstrating benefit, great uncertainty remains regarding patient selection, timing of intervention, and type of mechanical intervention (endoscopic versus surgery). Challenges and opportunities to establish beneficial interventions for patients were identified.


Assuntos
Diabetes Mellitus , Pancreatite Crônica , Humanos , Diabetes Mellitus/diagnóstico , Diabetes Mellitus/terapia , National Institute of Diabetes and Digestive and Kidney Diseases (U.S.) , Dor , Pancreatite Crônica/terapia , Pancreatite Crônica/tratamento farmacológico , Estados Unidos
16.
Cell Signal ; 118: 111135, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38479555

RESUMO

BACKGROUND: Pancreatic fibrosis is one of the most important pathological features of chronic pancreatitis (CP) and pancreatic stellate cells (PSCs) are the key cells of fibrosis. As an extracellular matrix (ECM) glycoprotein, cartilage oligomeric matrix protein (COMP) is critical for collagen assembly and ECM stability and recent studies showed that COMP exert promoting fibrosis effect in the skin, lungs and liver. However, the role of COMP in activation of PSCs and pancreatic fibrosis remain unclear. We aimed to investigate the role and specific mechanisms of COMP in regulating the profibrotic phenotype of PSCs and pancreatic fibrosis. METHODS: ELISA method was used to determine serum COMP in patients with CP. Mice model of CP was established by repeated intraperitoneal injection of cerulein and pancreatic fibrosis was evaluated by Hematoxylin-Eosin staining (H&E) and Sirius red staining. Immunohistochemical staining was used to detect the expression changes of COMP and fibrosis marker such as α-SMA and Fibronectin in pancreatic tissue of mice. Cell Counting Kit-8, Wound Healing and Transwell assessed the proliferation and migration of human pancreatic stellate cells (HPSCs). Western blotting, qRT-PCR and immunofluorescence staining were performed to detect the expression of fibrosis marker, AKT and MAPK family proteins in HPSCs. RNA-seq omics analysis as well as small interfering RNA of COMP, recombinant human COMP (rCOMP), MEK inhibitors and PI3K inhibitors were used to study the effect and mechanism of COMP on activation of HPSCs. RESULTS: ELISA showed that the expression of COMP significantly increased in the serum of CP patients. H&E and Sirius red staining analysis showed that there was a large amount of collagen deposition in the mice in the CP model group and high expression of COMP, α-SMA, Fibronectin and Vimentin were observed in fibrotic tissues. TGF-ß1 stimulates the activation of HPSCs and increases the expression of COMP. Knockdown of COMP inhibited proliferation and migration of HPSCs. Further, RNA-seq omics analysis and validation experiments in vitro showed that rCOMP could significantly promote the proliferation and activation of HPSCs, which may be due to promoting the phosphorylation of ERK and AKT through membrane protein receptor CD36. rCOMP simultaneously increased the expression of α-SMA, Fibronectin and Collagen I in HPSCs. CONCLUSION: In conclusion, this study showed that COMP was up-regulated in CP fibrotic tissues and COMP induced the activation, proliferation and migration of PSCs through the CD36-ERK/AKT signaling pathway. COMP may be a potential therapeutic candidate for the treatment of CP. Interfering with the expression of COMP or the communication between COMP and CD36 on PSCs may be the next direction for therapeutic research.


Assuntos
Pancreatopatias , Pancreatite Crônica , Animais , Humanos , Camundongos , Proteína de Matriz Oligomérica de Cartilagem/metabolismo , Proteína de Matriz Oligomérica de Cartilagem/farmacologia , Proteína de Matriz Oligomérica de Cartilagem/uso terapêutico , Células Cultivadas , Colágeno Tipo I/metabolismo , Fibronectinas/metabolismo , Fibrose , Pancreatopatias/metabolismo , Células Estreladas do Pâncreas/metabolismo , Células Estreladas do Pâncreas/patologia , Pancreatite Crônica/tratamento farmacológico , Pancreatite Crônica/metabolismo , Pancreatite Crônica/patologia , Fosfatidilinositol 3-Quinases/metabolismo , Proteínas Proto-Oncogênicas c-akt/metabolismo , Transdução de Sinais
17.
Int J Biol Sci ; 20(5): 1707-1728, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38481805

RESUMO

Acute pancreatitis (AP) is a common abdominal disease that typically resolves on its own, but the mortality rate dramatically increases when it progresses to severe acute pancreatitis (SAP). In this study, we investigated the molecular mechanism underlying the development of SAP from AP. We utilized two SAP models induced by pancreatic duct ligation and caerulein administration. Transcriptomic and proteomic analyses were subsequently performed to determine the mRNA and protein expression profiles of pancreatic samples from SAP and AP model and normal mice. To explore the role of Hspb1 in SAP, we used Hspb1 knockout (KO) mice, a genetically engineered chronic pancreatitis strain (T7D23A), Anxa2 KO mice, and acinar cell-specific Prdx1 knockout mice. Additionally, various in vivo and in vitro assays were performed to elucidate the molecular events and direct targets of Hspb1 in acinar cells. We found that Hspb1 expression was upregulated in AP samples but significantly reduced in acinar cells from SAP samples. KO or inhibition of Hspb1 worsened AP, while AAV8-Hspb1 administration mitigated the severity of SAP and reduced remote organ damage in mice. Furthermore, AAV8-Hspb1 treatment prevented the development of chronic pancreatitis. We found that KO or inhibition of Hspb1 promoted acinar cell death through apoptosis and ferroptosis but not necroptosis or autophagy by increasing reactive oxygen species (ROS) and lipid ROS levels. Mechanistically, Hspb1 directly interacted with Anxa2 to decrease its aggregation and phosphorylation, interact with the crucial antioxidant enzyme Prdx1, and maintain its antioxidative activity by decreasing Thr-90 phosphorylation. Notably, the overexpression of Hspb1 did not have a protective effect on acinar-specific Prdx1 knockout mice. In summary, our findings shed light on the role of Hspb1 in acinar cells. We showed that targeting Hspb1/Anxa2/Prdx1 could serve as a potential therapeutic strategy for SAP.


Assuntos
Ferroptose , Pancreatite Crônica , Animais , Camundongos , Doença Aguda , Antioxidantes/farmacologia , Apoptose/genética , Camundongos Knockout , Peroxirredoxinas/genética , Peroxirredoxinas/farmacologia , Proteômica , Espécies Reativas de Oxigênio
18.
Pancreatology ; 24(2): 211-219, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38302312

RESUMO

BACKGROUND: Fatigue is a debilitating symptom found in various chronic diseases and is associated with more severe symptoms and worse quality of life (QoL). However, this symptom has not been adequately addressed in chronic pancreatitis (CP), and there have been no studies on fatigue in patients with CP. METHODS: This cross-sectional study was conducted at the Changhai Hospital in Shanghai, China. Data on the patients' sociodemographic, disease, and therapeutic characteristics were collected. Fatigue was assessed using the Multidimensional Fatigue Inventory-20. QoL was assessed utilizing the European Organization for the Research and Treatment of Cancer of QoL questionnaire (EORTC-QLQ-C30). Sleep quality, anxiety and depression, and pain was assessed using Pittsburgh Sleep Quality Index, the Hospital Anxiety and Depression Scale, and the Brief Pain Inventory, respectively. RESULTS: The prevalence of fatigue among Chinese patients with CP was 35.51 % (87/245). Multivariate analysis showed that steatorrhea (OR = 2.638, 95 % CI: 1.117-6.234), history of smoking (OR = 4.627, 95 % CI: 1.202-17.802), history of endoscopic treatment (OR = 0.419, 95 % CI: 0.185-0.950), depression (OR = 5.924, 95 % CI: 2.462-14.255), and sleep disorder (OR = 6.184, 95 % CI: 2.543-15.034) were influencing factors for the presence of fatigue. The scores for global health and all functional dimensions in the EORTC-QLQ-C30 significantly decreased, whereas the scores for all symptom dimensions significantly increased in patients with fatigue. CONCLUSIONS: This study indicated that Fatigue is a common symptom and has a negative impact on the QoL of patients with CP. Steatorrhea, smoking history, endoscopic treatment, depression, and sleep disorders were associated with fatigue.


Assuntos
Pancreatite Crônica , Esteatorreia , Humanos , Estudos Transversais , Qualidade de Vida , Prevalência , China/epidemiologia , Fatores de Risco , Pancreatite Crônica/complicações , Pancreatite Crônica/epidemiologia , Fadiga/epidemiologia , Fadiga/etiologia , Dor , Inquéritos e Questionários
19.
Clin Transl Gastroenterol ; 15(4): e00691, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38334943

RESUMO

INTRODUCTION: The effects of genetic factors on pregnancy outcomes in chronic pancreatitis (CP) patients remain unclear. We evaluated the impacts of clinical features and mutations in main CP-susceptibility genes ( SPINK1 , PRSS1 , CTRC , and CFTR ) on pregnancy outcomes in Chinese CP patients. METHODS: This was a prospective cohort study with 14-year follow-up. The sample comprised female CP patients with documented pregnancy and known genetic backgrounds. Adverse pregnancy outcomes were compared between patients with and without gene mutations. Univariate and multivariate analyses were performed to determine the impact factors for adverse pregnancy outcomes. RESULTS: Totally, 160 female CP patients with a pregnancy history were enrolled; 59.4% of patients carried pathogenic mutations in CP-susceptibility genes. Adverse pregnancy outcomes occurred in 38 patients (23.8%); the prevalence of adverse outcomes was significantly higher in those harboring gene mutations than those without (30.5% vs 13.8%, P = 0.015). Notably, the rates of preterm delivery (12.6% vs 3.1%, P = 0.036) and abortion (17.9% vs 4.6%, P = 0.013) were remarkably higher in patients with gene mutations (especially SPINK1 mutations) than those without. In multivariate analyses, both CP-susceptibility gene mutations (odds ratio, 2.52; P = 0.033) and SPINK1 mutations (odds ratio, 2.60; P = 0.037) significantly increased the risk of adverse pregnancy outcomes. Acute pain attack during pregnancy was another risk factor for adverse pregnancy outcomes. DISCUSSION: Pathogenic mutations in CP-susceptibility genes, especially SPINK1 , were independently related to adverse pregnancy outcomes in CP patients. Significant attention should be paid to pregnant females harboring CP-susceptibility gene mutations (ClinicalTrials.gov: NCT06055595).


Assuntos
Quimotripsina , Regulador de Condutância Transmembrana em Fibrose Cística , Predisposição Genética para Doença , Mutação , Pancreatite Crônica , Complicações na Gravidez , Resultado da Gravidez , Inibidor da Tripsina Pancreática de Kazal , Tripsina , Humanos , Feminino , Gravidez , Adulto , Inibidor da Tripsina Pancreática de Kazal/genética , Pancreatite Crônica/genética , Pancreatite Crônica/complicações , Estudos Prospectivos , Tripsina/genética , Complicações na Gravidez/genética , Regulador de Condutância Transmembrana em Fibrose Cística/genética , China/epidemiologia , Nascimento Prematuro/epidemiologia , Nascimento Prematuro/genética , Adulto Jovem , Seguimentos , Fatores de Risco , Aborto Espontâneo/genética , Aborto Espontâneo/epidemiologia
20.
Clin Transl Gastroenterol ; 15(4): e00685, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38299610

RESUMO

INTRODUCTION: This study explores how chronic pancreatitis (CP) relates to subclinical cognitive impairment (SCI) and its prevalence, characteristics, risk factors, and effects on patients' quality of life (QoL) and physical performance. METHODS: Patients with fulfilled CP criteria in imaging were prospectively enrolled. Overt encephalopathy, neurodegenerative disorders, decompensated cirrhosis, and sepsis were exclusion criteria. All patients underwent psychometric testing and assessment of health-related QoL, such as mobility and strength. SCI was diagnosed when at least 1 test of the psychometric test battery was pathological. RESULTS: Seventy-one patients were enrolled. The etiology was toxic (alcohol/smoking) in most (49%) of the cases. SCI was prevalent in 41% of the patients while 25% had only 1 and 16% had 2 or more pathological tests. Patients with SCI exhibited diminished overall QoL scores ( P = 0.048), primarily affecting physical functionality ( P < 0.001). This was reaffirmed in mobility tests, where patients with SCI were slower in the timed up-and-go test ( P = 0.008) and showed increased prevalence of abnormal chair rising tests ( P = 0.004). Among all variables analyzed, only alcohol abuse was an independent risk factor of SCI (odds ratio 3.46; P = 0.02) in a multivariable regression model together with the variables age, sex, education, and compensated cirrhosis. Despite SCI affecting global QoL, sleep disturbance seemed to be the strongest variable independently associated with impaired QoL (odds ratio 9.9; P = 0.001). DISCUSSION: The largest study to the subject to date shows that SCI is common in patients with CP and is linked to significant morbidity. These findings suggest the need for addressing modifiable risk factors in patients with CP to improve outcomes.


Assuntos
Disfunção Cognitiva , Pancreatite Crônica , Qualidade de Vida , Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Pancreatite Crônica/complicações , Pancreatite Crônica/psicologia , Pancreatite Crônica/epidemiologia , Fatores de Risco , Disfunção Cognitiva/etiologia , Disfunção Cognitiva/epidemiologia , Disfunção Cognitiva/diagnóstico , Estudos Prospectivos , Adulto , Prevalência , Idoso , Limitação da Mobilidade , Psicometria , Desempenho Físico Funcional , Testes Neuropsicológicos
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