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Meloni A, Pistoia L, Putti MC, Longo F, Corigliano E, Ricchi P, Rossi V, Casini T, Righi R, Renne S, Peritore G, Barbuto L, Positano V, Cademartiri F. Pancreatic iron in pediatric transfusion-dependent beta-thalassemia patients: A longitudinal MRI study. Pediatr Blood Cancer 2024; 71:e30923. [PMID: 38385860 DOI: 10.1002/pbc.30923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 02/02/2024] [Accepted: 02/08/2024] [Indexed: 02/23/2024]
Abstract
BACKGROUND In pediatric transfusion-dependent thalassemia (TDT) patients, we evaluated the prevalence, pattern, and clinical associations of pancreatic siderosis and the changes in pancreatic iron levels and their association with baseline and changes in total body iron balance. PROCEDURE We considered 86 pediatric TDT patients consecutively enrolled in the Extension-Myocardial Iron Overload in Thalassemia Network. Iron overload (IO) was quantified by R2* magnetic resonance imaging (MRI). RESULTS Sixty-three (73%) patients had pancreatic IO (R2* > 38 Hz). Global pancreas R2* values were significantly correlated with mean serum ferritin levels, MRI liver iron concentration (LIC) values, and global heart R2* values. Global pancreas R2* values were significantly higher in patients with altered versus normal glucose metabolism. Thirty-one patients also performed the follow-up MRI at 18 ± 3 months. Higher pancreatic R2* values were detected at the follow-up, but the difference versus the baseline MRI was not significant. The 20% of patients with baseline pancreatic IO showed no pancreatic IO at the follow-up. The 46% of patients without baseline pancreatic IO developed pancreatic siderosis. The changes in global pancreas R2* between the two MRIs were not correlated with baseline serum ferritin levels, baseline, final, and changes in MRI LIC values, or baseline pancreatic iron levels. CONCLUSIONS In children with TDT, pancreatic siderosis is a frequent finding associated with hepatic siderosis and represents a risk factor for myocardial siderosis and alterations of glucose metabolism. Iron removal from the pancreas is exceptionally challenging and independent from hepatic iron status.
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Affiliation(s)
- Antonella Meloni
- Bioengineering Unit, Fondazione G. Monasterio CNR-Regione Toscana, Pisa, Italy
- Department of Radiology, Fondazione G. Monasterio CNR-Regione Toscana, Pisa, Italy
| | - Laura Pistoia
- Department of Radiology, Fondazione G. Monasterio CNR-Regione Toscana, Pisa, Italy
- U.O.C. Ricerca Clinica, Fondazione G. Monasterio CNR-Regione Toscana, Pisa, Italy
| | - Maria Caterina Putti
- Dipartimento della Salute della Donna e del Bambino, Clinica di Emato-Oncologia Pediatrica, Azienda Ospedaliero-Università di Padova, Padua, Italy
| | - Filomena Longo
- Unità Operativa Day Hospital della Talassemia e delle Emoglobinopatie, Azienda Ospedaliero-Universitaria "S. Anna,", Cona, Ferrara, Italy
| | | | - Paolo Ricchi
- U.O.S.D. Malattie Rare del Globulo Rosso, Azienda Ospedaliera di Rilievo Nazionale "A. Cardarelli", Naples, Italy
| | | | - Tommaso Casini
- SOC Oncologia, Ematologia e Trapianto di Cellule Staminali Emopoietiche, Meyer Children's Hospital IRCCS, Florence, Italy
| | - Riccardo Righi
- Diagnostica per Immagini e Radiologia Interventistica, Ospedale del Delta, Lagosanto, Ferrara, Italy
| | - Stefania Renne
- Struttura Complessa di Cardioradiologia-UTIC, Presidio Ospedaliero "Giovanni Paolo II,", Lamezia Terme, Italy
| | - Giuseppe Peritore
- Unità Operativa Complessa di Radiologia, "ARNAS" Civico, Di Cristina Benfratelli, Palermo, Italy
| | - Luigi Barbuto
- U.O.C. Radiologia Generale e di Pronto Soccorso, Azienda Ospedaliera di Rilievo Nazionale "A. Cardarelli", Naples, Italy
| | - Vincenzo Positano
- Bioengineering Unit, Fondazione G. Monasterio CNR-Regione Toscana, Pisa, Italy
- Department of Radiology, Fondazione G. Monasterio CNR-Regione Toscana, Pisa, Italy
| | - Filippo Cademartiri
- Department of Radiology, Fondazione G. Monasterio CNR-Regione Toscana, Pisa, Italy
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Heard JC, Smith GH, Tolman A, Karumuri JS, Osman HG, Jeyarajah RD. No Drain, No Problem: Serum-Based Marker Prediction of Clinically Relevant Postoperative Pancreatic Fistula. Am Surg 2024; 90:1074-1081. [PMID: 38149405 DOI: 10.1177/00031348231204917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
BACKGROUND Postoperative day (POD) 1 drain amylase concentration (DAC) is considered the most accurate predictor for the development of a clinically relevant postoperative pancreatic fistula (CR-POPF) after pancreaticoduodenectomy (PD). Recent studies have associated drain placement with negative postoperative outcomes. This study aims to evaluate multiple biochemical markers and their associations with CR-POPF development in order to identify a reliable, non-drain dependent alternative to DAC. METHODS This is a review of 53 consecutive PD patients between 2021 and 2022. Albumin, C-reactive protein (CRP), C-reactive protein-to-albumin ratio (CAR), DAC, white blood cell count, and procalcitonin values were compared by CR-POPF status. The discriminatory abilities of CAR, CRP, and DAC for CR-POPF were compared using receiver operating characteristic (ROC) curves. RESULTS Six of 51 included patients developed a CR-POPF. Receiver operating characteristic curve analysis produced an area under the curve of .977 for POD 1 DAC (cut-off 5131.0 IU/L, sensitivity 100%, specificity 95.5%), .858 for POD 1 CRP (cut-off 52.5 mg/L, sensitivity 100%, specificity 72.7%), and 1.000 for POD 3 CAR (cut-off 99.2, sensitivity and specificity 100%). POD 3 CAR produced a positive and negative predictive value of 100%. CONCLUSION The CAR and CRP provide early and accurate identification of patients with post-PD CR-POPFs. These markers offer a method of safe CR-POPF detection, when the gold standard DAC is unavailable, ultimately allowing for early intervention and patient rescue.
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Affiliation(s)
- Jessica C Heard
- Department of Hepatobiliary Surgery, Methodist Richardson Medical Center, Richardson, TX, USA
| | - Glen H Smith
- Burnett School of Medicine at TCU, Fort Worth, TX, USA
| | - Alex Tolman
- Burnett School of Medicine at TCU, Fort Worth, TX, USA
| | - Jashwanth S Karumuri
- Department of Hepatobiliary Surgery, Methodist Richardson Medical Center, Richardson, TX, USA
| | - Houssam G Osman
- Department of Hepatobiliary Surgery, Methodist Richardson Medical Center, Richardson, TX, USA
- Burnett School of Medicine at TCU, Fort Worth, TX, USA
| | - Rohan D Jeyarajah
- Department of Hepatobiliary Surgery, Methodist Richardson Medical Center, Richardson, TX, USA
- Burnett School of Medicine at TCU, Fort Worth, TX, USA
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3
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Khater SI, El-Emam MMA, Abdellatif H, Mostafa M, Khamis T, Soliman RHM, Ahmed HS, Ali SK, Selim HMRM, Alqahtani LS, Habib D, Metwally MMM, Alnakhli AM, Saleh A, Abdelfattah AM, Abdelnour HM, Dowidar MF. Lipid nanoparticles of quercetin (QU-Lip) alleviated pancreatic microenvironment in diabetic male rats: The interplay between oxidative stress - unfolded protein response (UPR) - autophagy, and their regulatory miRNA. Life Sci 2024; 344:122546. [PMID: 38462227 DOI: 10.1016/j.lfs.2024.122546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 02/20/2024] [Accepted: 03/04/2024] [Indexed: 03/12/2024]
Abstract
BACKGROUND Autophagy is a well-preserved mechanism essential in minimizing endoplasmic reticulum stress (ER)-related cell death. Defects in β-cell autophagy have been linked to type 1 diabetes, particularly deficits in the secretion of insulin, boosting ER stress sensitivity and possibly promoting pancreatic β-cell death. Quercetin (QU) is a potent antioxidant and anti-diabetic flavonoid with low bioavailability, and the precise mechanism of its anti-diabetic activity is still unknown. Aim This study aimed to design an improved bioavailable form of QU (liposomes) and examine the impact of its treatment on the alleviation of type 1 diabetes induced by STZ in rats. METHODS Seventy SD rats were allocated into seven equal groups 10 rats of each: control, STZ, STZ + 3-MA, STZ + QU-Lip, and STZ + 3-MA + QU-Lip. Fasting blood glucose, insulin, c-peptide, serum IL-6, TNF-α, pancreatic oxidative stress, TRAF-6, autophagy, endoplasmic reticulum stress (ER stress) markers expression and their regulatory microRNA (miRNA) were performed. As well as, docking analysis for the quercetin, ER stress, and autophagy were done. Finally, the histopathological and immunohistochemical analysis were conducted. SIGNIFICANCE QU-Lip significantly decreased glucose levels, oxidative, and inflammatory markers in the pancreas. It also significantly downregulated the expression of ER stress and upregulated autophagic-related markers. Furthermore, QU-Lip significantly ameliorated the expression of several MicroRNAs, which both control autophagy and ER stress signaling pathways. However, the improvement of STZ-diabetic rats was abolished upon combination with an autophagy inhibitor (3-MA). The findings suggest that QU-Lip has therapeutic promise in treating type 1 diabetes by modulating ER stress and autophagy via an epigenetic mechanism.
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Affiliation(s)
- Safaa I Khater
- Department of Biochemistry and Molecular Biology, Zagazig University, Zagazig 44511, Egypt.
| | | | - Hussein Abdellatif
- Department of Human and Clinical Anatomy, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Sultanate of Oman; Human Anatomy and Embryology Department, Faculty of Medicine, Mansoura University, Egypt
| | - Mahmoud Mostafa
- Department of Pharmaceutics, Faculty of Pharmacy, Minia University, Minia 61519, Egypt
| | - Tarek Khamis
- Department of Pharmacology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt; Laboratory of Biotechnology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt.
| | | | - Heba S Ahmed
- Department of Clinical Pharmacology, Faculty of Medicine, Zagazig University, Zagazig 44519, Egypt
| | - Sahar K Ali
- Department of Clinical Pharmacology, Faculty of Medicine, Zagazig University, Zagazig 44519, Egypt
| | - Heba Mohammed Refat M Selim
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, AlMaarefa University, Diriyah 13713, Riyadh, Saudi Arabia; Microbiology and Immunology Department, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo 35527, Egypt
| | - Leena S Alqahtani
- Department of Biochemistry, College of Science, University of Jeddah, Jeddah 23445, Saudi Arabia
| | - Doaa Habib
- Department of Biochemistry and Molecular Biology, Zagazig University, Zagazig 44511, Egypt
| | - Mohamed M M Metwally
- Department of Pathology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt; Department of pathology and clinical pathology, faculty of veterinary medicine, King Salman international University, Ras sidr, Egypt
| | - Anwar M Alnakhli
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, 84428, Riyadh 11671, Saudi Arabia
| | - Asmaa Saleh
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, 84428, Riyadh 11671, Saudi Arabia
| | | | - Hanim M Abdelnour
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Zagazig University, Zagazig 44519, Egypt
| | - Mohamed F Dowidar
- Department of Biochemistry and Molecular Biology, Zagazig University, Zagazig 44511, Egypt
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4
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Lu C, Gu Q, Yu X. Effect of in vitro simulated digestion on the physicochemical properties and pancreatic lipase inhibitory activity of fucoidan. J Sci Food Agric 2024; 104:4157-4164. [PMID: 38284513 DOI: 10.1002/jsfa.13297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 01/30/2024]
Abstract
BACKGROUND Fucoidan has an anti-obesity effect. However, there are few studies on its mechanism. In this study, we investigated the in vitro and in silico inhibitory properties of fucoidan against pancreatic lipase for the first time. We examined the changes in composition, structure, and pancreatic lipase inhibition of fucoidan during in vitro digestion. RESULTS Simulated saliva-gastrointestinal digestion resulted in a slight decrease in the molecular weight of fucoidan but no significant changes in the monosaccharide composition, sulfate content, and functional groups. Moreover, the digestion process significantly increased the inhibition of pancreatic lipase by fucoidan. The study on the type of inhibition showed that the inhibition of pancreatic lipase by fucoidan belonged to mixed inhibition with competitive inhibition. Molecular docking analysis showed that fucoidan could bind to the active site of pancreatic lipase. CONCLUSION This study indicates that fucoidan can be a potential functional food for anti-obesity. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Chunqi Lu
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, P. R. China
| | - Qiuya Gu
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, P. R. China
| | - Xiaobin Yu
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, P. R. China
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Lehrstrand J, Davies WIL, Hahn M, Korsgren O, Alanentalo T, Ahlgren U. Illuminating the complete ß-cell mass of the human pancreas- signifying a new view on the islets of Langerhans. Nat Commun 2024; 15:3318. [PMID: 38632302 PMCID: PMC11024155 DOI: 10.1038/s41467-024-47686-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 04/10/2024] [Indexed: 04/19/2024] Open
Abstract
Pancreatic islets of Langerhans play a pivotal role in regulating blood glucose homeostasis, but critical information regarding their mass, distribution and composition is lacking within a whole organ context. Here, we apply a 3D imaging pipeline to generate a complete account of the insulin-producing islets throughout the human pancreas at a microscopic resolution and within a maintained spatial 3D context. These data show that human islets are far more heterogenous than previously accounted for with regards to their size distribution and cellular make up. By deep tissue 3D imaging, this in-depth study demonstrates that 50% of the human insulin-expressing islets are virtually devoid of glucagon-producing α-cells, an observation with significant implications for both experimental and clinical research.
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Affiliation(s)
- Joakim Lehrstrand
- Department of Medical and Translational Biology, Umeå University, Umeå, Sweden
| | - Wayne I L Davies
- Department of Medical and Translational Biology, Umeå University, Umeå, Sweden
| | - Max Hahn
- Department of Medical and Translational Biology, Umeå University, Umeå, Sweden
| | - Olle Korsgren
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Tomas Alanentalo
- Department of Medical and Translational Biology, Umeå University, Umeå, Sweden
| | - Ulf Ahlgren
- Department of Medical and Translational Biology, Umeå University, Umeå, Sweden.
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6
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D'Amico S, Kirillov V, Petrenko O, Reich NC. STAT3 is a genetic modifier of TGF-beta induced EMT in KRAS mutant pancreatic cancer. eLife 2024; 13:RP92559. [PMID: 38573819 PMCID: PMC10994661 DOI: 10.7554/elife.92559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024] Open
Abstract
Oncogenic mutations in KRAS are among the most common in cancer. Classical models suggest that loss of epithelial characteristics and the acquisition of mesenchymal traits are associated with cancer aggressiveness and therapy resistance. However, the mechanistic link between these phenotypes and mutant KRAS biology remains to be established. Here, we identify STAT3 as a genetic modifier of TGF-beta-induced epithelial to mesenchymal transition. Gene expression profiling of pancreatic cancer cells identifies more than 200 genes commonly regulated by STAT3 and oncogenic KRAS. Functional classification of the STAT3-responsive program reveals its major role in tumor maintenance and epithelial homeostasis. The signatures of STAT3-activated cell states can be projected onto human KRAS mutant tumors, suggesting that they faithfully reflect characteristics of human disease. These observations have implications for therapeutic intervention and tumor aggressiveness.
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Affiliation(s)
- Stephen D'Amico
- Department of Microbiology and Immunology, Stony Brook UniversityStony BrookUnited States
| | - Varvara Kirillov
- Department of Microbiology and Immunology, Stony Brook UniversityStony BrookUnited States
| | - Oleksi Petrenko
- Department of Microbiology and Immunology, Stony Brook UniversityStony BrookUnited States
| | - Nancy C Reich
- Department of Microbiology and Immunology, Stony Brook UniversityStony BrookUnited States
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7
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Alseud K, Ostlund T, Durymanov M, Reineke J, Halaweish F. Synthesis and biological activity of 11-Oxygenated and heterocyclic estrone analogs in pancreatic cancer monolayers and 3D spheroids. Bioorg Med Chem 2024; 103:117678. [PMID: 38489997 DOI: 10.1016/j.bmc.2024.117678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/01/2024] [Accepted: 03/04/2024] [Indexed: 03/17/2024]
Abstract
Pancreatic Ductal Adenocarcinoma (PDAC), representing over 90 % of pancreatic cancer diagnoses, is an aggressive disease with survivability among the worst of all cancers due to its difficulty in detection and its high metastatic properties. Current therapies for PDAC show limited success at extending life expectancies, primarily due to cancer resistance and lack of patient-specific targeted therapies. This work highlights the design and evaluation of estrone-derived analogs with both heterocyclic side-chain functionality and 11-oxygenated functionality for use in pancreatic cancer. First-round heterocyclic analogs show preliminary promise in AsPC-1 and Panc-1 cell lines, with IC50 values as low as 10.16 ± 0.83 µM. Their success, coupled with design choices from other studies, led to the synthesis of novel 11-hydroxyl and 11-keto estrone analogs that show potent in-vitro toxicity against various pancreatic cancer models. The three most cytotoxic analogs, KA1, KA2, and KA9 demonstrated low micromolar activities in both MTT and CellTiter assays in three pancreatic cancer cell lines: AsPC-1, Panc-1, and BxPC-3, as well as in a co-culture of Panc-1 and pancreatic stellate cells. IC50 values for KA9 (4.17 ± 0.90, 5.28 ± 1.87, and 5.70 ± 0.65 µM respectively) shows consistency in all cell lines tested. KA9 is also able to cause an increase in caspases 3 and 7 activity, key markers for apoptosis, at non-cytotoxic concentrations. Additional work was performed by generating 3D pancreatic cancer spheroids to better modulate the pancreatic tumor microenvironment, and KA9 continued to show the best IC50 values (21.0 and 24.3 µM) in both cell types tested. KA9 was also able to prevent the growth of spheroids whereas the standard chemotherapy, Gemcitabine, could not, suggesting that it may be a potent analog for future development of treatments. Molecular dynamic simulations were also performed to confirm biological findings and uncovered that KA9's preferential binding location is in the active site pocket of key proteins involved in cytotoxicity.
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Affiliation(s)
- Khaled Alseud
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, SD 57006, USA; Department of Pharmaceutical Chemistry, College of Pharmacy, King Khalid University, Abha 61421, Saudi Arabia
| | - Trevor Ostlund
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, SD 57006, USA
| | - Mikhail Durymanov
- Department of Pharmaceutical Sciences, South Dakota State University, Brookings, SD 57006, USA
| | - Joshua Reineke
- Department of Pharmaceutical Sciences, South Dakota State University, Brookings, SD 57006, USA
| | - Fathi Halaweish
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, SD 57006, USA.
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8
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Fang X, Zhang Y, Miao R, Zhang Y, Yin R, Guan H, Huang X, Tian J. Single-cell sequencing: A promising approach for uncovering the characteristic of pancreatic islet cells in type 2 diabetes. Biomed Pharmacother 2024; 173:116292. [PMID: 38394848 DOI: 10.1016/j.biopha.2024.116292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/03/2024] [Accepted: 02/17/2024] [Indexed: 02/25/2024] Open
Abstract
Single-cell sequencing is a novel and rapidly advancing high-throughput technique that can be used to investigating genomics, transcriptomics, and epigenetics at a single-cell level. Currently, single-cell sequencing can not only be used to draw the pancreatic islet cells map and uncover the characteristics of cellular heterogeneity in type 2 diabetes, but can also be used to label and purify functional beta cells in pancreatic stem cells, improving stem cells and islet organoids therapies. In addition, this technology helps to analyze islet cell dedifferentiation and can be applied to the treatment of type 2 diabetes. In this review, we summarize the development and process of single-cell sequencing, describe the potential applications of single-cell sequencing in the field of type 2 diabetes, and discuss the prospects and limitations of single-cell sequencing to provide a new direction for exploring the pathogenesis of type 2 diabetes and finding therapeutic targets.
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Affiliation(s)
- Xinyi Fang
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China; Graduate College, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yanjiao Zhang
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Runyu Miao
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China; Graduate College, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yuxin Zhang
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Ruiyang Yin
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Huifang Guan
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Jilin 130117, China
| | - Xinyue Huang
- First Clinical Medical College, Changzhi Medical College, Shanxi 046013, China
| | - Jiaxing Tian
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China.
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9
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Tsvilovskyy V, Ottenheijm R, Kriebs U, Schütz A, Diakopoulos KN, Jha A, Bildl W, Wirth A, Böck J, Jaślan D, Ferro I, Taberner FJ, Kalinina O, Hildebrand S, Wissenbach U, Weissgerber P, Vogt D, Eberhagen C, Mannebach S, Berlin M, Kuryshev V, Schumacher D, Philippaert K, Camacho-Londoño JE, Mathar I, Dieterich C, Klugbauer N, Biel M, Wahl-Schott C, Lipp P, Flockerzi V, Zischka H, Algül H, Lechner SG, Lesina M, Grimm C, Fakler B, Schulte U, Muallem S, Freichel M. OCaR1 endows exocytic vesicles with autoregulatory competence by preventing uncontrolled Ca2+ release, exocytosis, and pancreatic tissue damage. J Clin Invest 2024; 134:e169428. [PMID: 38557489 PMCID: PMC10977991 DOI: 10.1172/jci169428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 02/13/2024] [Indexed: 04/04/2024] Open
Abstract
Regulated exocytosis is initiated by increased Ca2+ concentrations in close spatial proximity to secretory granules, which is effectively prevented when the cell is at rest. Here we showed that exocytosis of zymogen granules in acinar cells was driven by Ca2+ directly released from acidic Ca2+ stores including secretory granules through NAADP-activated two-pore channels (TPCs). We identified OCaR1 (encoded by Tmem63a) as an organellar Ca2+ regulator protein integral to the membrane of secretory granules that controlled Ca2+ release via inhibition of TPC1 and TPC2 currents. Deletion of OCaR1 led to extensive Ca2+ release from NAADP-responsive granules under basal conditions as well as upon stimulation of GPCR receptors. Moreover, OCaR1 deletion exacerbated the disease phenotype in murine models of severe and chronic pancreatitis. Our findings showed OCaR1 as a gatekeeper of Ca2+ release that endows NAADP-sensitive secretory granules with an autoregulatory mechanism preventing uncontrolled exocytosis and pancreatic tissue damage.
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Affiliation(s)
- Volodymyr Tsvilovskyy
- Institute of Pharmacology, Heidelberg University, Heidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Heidelberg/Mannheim, Heidelberg, Germany
| | - Roger Ottenheijm
- Institute of Pharmacology, Heidelberg University, Heidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Heidelberg/Mannheim, Heidelberg, Germany
| | - Ulrich Kriebs
- Institute of Pharmacology, Heidelberg University, Heidelberg, Germany
| | - Aline Schütz
- Institute of Pharmacology, Heidelberg University, Heidelberg, Germany
| | - Kalliope Nina Diakopoulos
- Comprehensive Cancer Center München, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Archana Jha
- Epithelial Signaling and Transport Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, USA
| | - Wolfgang Bildl
- Institute for Physiology, University of Freiburg, Freiburg, Germany
| | - Angela Wirth
- Institute of Pharmacology, Heidelberg University, Heidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Heidelberg/Mannheim, Heidelberg, Germany
| | - Julia Böck
- Walther-Straub-Institut für Pharmakologie und Toxikologie, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Dawid Jaślan
- Walther-Straub-Institut für Pharmakologie und Toxikologie, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Irene Ferro
- Walther-Straub-Institut für Pharmakologie und Toxikologie, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Francisco J. Taberner
- Institute of Pharmacology, Heidelberg University, Heidelberg, Germany
- Instituto de Neurociencias de Alicante, Universidad Miguel Hernández–Consejo Superior de Investigaciones Científicas, Sant Joan d’Alacant, Spain
| | - Olga Kalinina
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarbrücken, Germany
| | - Staffan Hildebrand
- Institut für Pharmakologie und Toxikologie, Universität Bonn, Bonn, Germany
| | - Ulrich Wissenbach
- Experimental and Clinical Pharmacology and Toxicology, Center for Molecular Signaling (PZMS), Saarland University, Homburg, Germany
| | - Petra Weissgerber
- Experimental and Clinical Pharmacology and Toxicology, Center for Molecular Signaling (PZMS), Saarland University, Homburg, Germany
| | - Dominik Vogt
- Institute of Pharmacology, Heidelberg University, Heidelberg, Germany
| | - Carola Eberhagen
- Institute of Molecular Toxicology and Pharmacology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
| | - Stefanie Mannebach
- Experimental and Clinical Pharmacology and Toxicology, Center for Molecular Signaling (PZMS), Saarland University, Homburg, Germany
| | - Michael Berlin
- Institute of Pharmacology, Heidelberg University, Heidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Heidelberg/Mannheim, Heidelberg, Germany
| | - Vladimir Kuryshev
- Institute of Pharmacology, Heidelberg University, Heidelberg, Germany
| | - Dagmar Schumacher
- Institute of Pharmacology, Heidelberg University, Heidelberg, Germany
| | - Koenraad Philippaert
- Institute of Pharmacology, Heidelberg University, Heidelberg, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Heidelberg/Mannheim, Heidelberg, Germany
| | | | - Ilka Mathar
- Institute of Pharmacology, Heidelberg University, Heidelberg, Germany
| | - Christoph Dieterich
- University Hospital Heidelberg, Department of Medicine III: Cardiology, Angiology and Pneumology, Heidelberg, Germany
| | - Norbert Klugbauer
- Institut für Experimentelle und Klinische Pharmakologie und Toxikologie, Fakultät für Medizin, Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
| | - Martin Biel
- Center for Integrated Protein Science Munich (CIPS-M) and Center for Drug Research, Department of Pharmacy, Ludwig-Maximilians-Universität München, and DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany
| | - Christian Wahl-Schott
- Walter Brendel Centre of Experimental Medicine, Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Medical Faculty, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
| | - Peter Lipp
- Institute for Molecular Cell Biology, Center for Molecular Signaling (PZMS), Universität des Saarlandes, Homburg, Germany
| | - Veit Flockerzi
- Experimental and Clinical Pharmacology and Toxicology, Center for Molecular Signaling (PZMS), Saarland University, Homburg, Germany
| | - Hans Zischka
- Institute of Molecular Toxicology and Pharmacology, Helmholtz Center Munich, German Research Center for Environmental Health, Neuherberg, Germany
- Institute of Toxicology and Environmental Hygiene, Technical University Munich, School of Medicine, Munich, Germany
| | - Hana Algül
- Comprehensive Cancer Center München, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Stefan G. Lechner
- Institute of Pharmacology, Heidelberg University, Heidelberg, Germany
| | - Marina Lesina
- Comprehensive Cancer Center München, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Christian Grimm
- Walther-Straub-Institut für Pharmakologie und Toxikologie, Ludwig-Maximilians-Universität München, Munich, Germany
- Immunology, Infection and Pandemic Research (IIP), Fraunhofer Institute for Translational Medicine and Pharmacology (ITMP), Munich, Germany
| | - Bernd Fakler
- Institute for Physiology, University of Freiburg, Freiburg, Germany
| | - Uwe Schulte
- Institute for Physiology, University of Freiburg, Freiburg, Germany
| | - Shmuel Muallem
- Epithelial Signaling and Transport Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, USA
| | - Marc Freichel
- Institute of Pharmacology, Heidelberg University, Heidelberg, Germany
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10
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Zhang S, Liu Q, Yang C, Li X, Chen Y, Wu J, Fan W, Liu Y, Lin J. Poorly controlled type 1 diabetes mellitus seriously impairs female reproduction via immune and metabolic disorders. Reprod Biomed Online 2024; 48:103727. [PMID: 38402677 DOI: 10.1016/j.rbmo.2023.103727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 10/15/2023] [Accepted: 11/09/2023] [Indexed: 02/27/2024]
Abstract
RESEARCH QUESTION Does type 1 diabetes mellitus (T1DM) affect reproductive health of female patients? What is the potential mechanism of reproductive dysfunction in female patients caused by T1DM? DESIGN Preliminary assessment of serum levels of female hormones in women with or without T1DM. Then histological and immunological examinations were carried out on the pancreas, ovaries and uteri at different stages in non-obese diabetic (NOD) and Institute of Cancer Research (ICR) mice, as well as assessment of their fertility. A protein array was carried out to detect the changes in serum inflammatory cytokines. Furthermore, RNA-sequencing was used to identify the key abnormal genes/pathways in ovarian and uterine tissues of female NOD mice, which were further verified at the protein level. RESULTS Testosterone levels were significantly increased (P = 0.0036) in female mice with T1DM. Increasing age in female NOD mice was accompanied by obvious lymphocyte infiltration in the pancreatic islets. Moreover, the levels of serum inflammatory factors in NOD mice were sharply increased with increasing age. The fertility of female NOD mice declined markedly, and most were capable of conceiving only once. Furthermore, ovarian and uterine morphology and function were severely impaired in NOD female mice. Additionally, ovarian and uterine tissues revealed that the differentially expressed genes were primarily enriched in metabolism, cytokine-receptor interactions and chemokine signalling pathways. CONCLUSION T1DM exerts a substantial impairment on female reproductive health, leading to diminished fertility, potentially associated with immune disorders and alterations in energy metabolism.
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Affiliation(s)
- Shenghui Zhang
- Stem Cell and Biotherapy Technology Research Center, College of Life Science and Technology, Xinxiang Medical University, Xinxiang 453003, China.; Department of Biomedical Sciences, Advanced Medical and Dental Institute (IPPT), Universiti Sains Malaysia, Penang, Malaysia
| | - Qin Liu
- Stem Cell and Biotherapy Technology Research Center, College of Life Science and Technology, Xinxiang Medical University, Xinxiang 453003, China
| | - Cuicui Yang
- The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang 453000, China
| | - Xinyi Li
- Stem Cell and Biotherapy Technology Research Center, College of Life Science and Technology, Xinxiang Medical University, Xinxiang 453003, China
| | - Yufeng Chen
- Xinxiang Central Hospital, Xinxiang 453000, China
| | - Jie Wu
- Xinxiang Central Hospital, Xinxiang 453000, China
| | - Wenqiang Fan
- Xinxiang Central Hospital, Xinxiang 453000, China..
| | - Yanli Liu
- Stem Cell and Biotherapy Technology Research Center, College of Life Science and Technology, Xinxiang Medical University, Xinxiang 453003, China..
| | - Juntang Lin
- Stem Cell and Biotherapy Technology Research Center, College of Life Science and Technology, Xinxiang Medical University, Xinxiang 453003, China.; College of Biomedical Engineering, Xinxiang Medical University, Xinxiang 453003, China
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11
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Drawshy Z, Neiman D, Fridlich O, Peretz A, Magenheim J, Rozo AV, Doliba NM, Stoffers DA, Kaestner KH, Schatz DA, Wasserfall C, Campbell-Thompson M, Shapiro J, Kaplan T, Shemer R, Glaser B, Klochendler A, Dor Y. DNA Methylation-Based Assessment of Cell Composition in Human Pancreas and Islets. Diabetes 2024; 73:554-564. [PMID: 38266068 PMCID: PMC10958580 DOI: 10.2337/db23-0704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 01/21/2024] [Indexed: 01/26/2024]
Abstract
Assessment of pancreas cell type composition is crucial to the understanding of the genesis of diabetes. Current approaches use immunodetection of protein markers, for example, insulin as a marker of β-cells. A major limitation of these methods is that protein content varies in physiological and pathological conditions, complicating the extrapolation to actual cell number. Here, we demonstrate the use of cell type-specific DNA methylation markers for determining the fraction of specific cell types in human islet and pancreas specimens. We identified genomic loci that are uniquely demethylated in specific pancreatic cell types and applied targeted PCR to assess the methylation status of these loci in tissue samples, enabling inference of cell type composition. In islet preparations, normalization of insulin secretion to β-cell DNA revealed similar β-cell function in pre-type 1 diabetes (T1D), T1D, and type 2 diabetes (T2D), which was significantly lower than in donors without diabetes. In histological pancreas specimens from recent-onset T1D, this assay showed β-cell fraction within the normal range, suggesting a significant contribution of β-cell dysfunction. In T2D pancreata, we observed increased α-cell fraction and normal β-cell fraction. Methylation-based analysis provides an accurate molecular alternative to immune detection of cell types in the human pancreas, with utility in the interpretation of insulin secretion assays and the assessment of pancreas cell composition in health and disease. ARTICLE HIGHLIGHTS
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Affiliation(s)
- Zeina Drawshy
- Department of Developmental Biology and Cancer Research, The Institute for Medical Research Israel-Canada (IMRIC), Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Daniel Neiman
- Department of Developmental Biology and Cancer Research, The Institute for Medical Research Israel-Canada (IMRIC), Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Ori Fridlich
- Department of Developmental Biology and Cancer Research, The Institute for Medical Research Israel-Canada (IMRIC), Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Ayelet Peretz
- Department of Developmental Biology and Cancer Research, The Institute for Medical Research Israel-Canada (IMRIC), Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Judith Magenheim
- Department of Developmental Biology and Cancer Research, The Institute for Medical Research Israel-Canada (IMRIC), Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Andrea V. Rozo
- Human Pancreas Analysis Program, University of Pennsylvania, Philadelphia, PA
- Department of Genetics and Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Nicolai M. Doliba
- Human Pancreas Analysis Program, University of Pennsylvania, Philadelphia, PA
- Department of Genetics and Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Doris A. Stoffers
- Human Pancreas Analysis Program, University of Pennsylvania, Philadelphia, PA
- Department of Genetics and Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Klaus H. Kaestner
- Human Pancreas Analysis Program, University of Pennsylvania, Philadelphia, PA
- Department of Genetics and Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | | | - Clive Wasserfall
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL
| | - Martha Campbell-Thompson
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL
| | - James Shapiro
- Surgery Department, Faculty of Medicine and Dentistry, Li Ka Shing Centre for Research, Edmonton, Alberta, Canada
| | - Tommy Kaplan
- Department of Developmental Biology and Cancer Research, The Institute for Medical Research Israel-Canada (IMRIC), Hebrew University-Hadassah Medical School, Jerusalem, Israel
- School of Computer Science and Engineering, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Ruth Shemer
- Department of Developmental Biology and Cancer Research, The Institute for Medical Research Israel-Canada (IMRIC), Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Benjamin Glaser
- Department of Developmental Biology and Cancer Research, The Institute for Medical Research Israel-Canada (IMRIC), Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Agnes Klochendler
- Department of Developmental Biology and Cancer Research, The Institute for Medical Research Israel-Canada (IMRIC), Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Yuval Dor
- Department of Developmental Biology and Cancer Research, The Institute for Medical Research Israel-Canada (IMRIC), Hebrew University-Hadassah Medical School, Jerusalem, Israel
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12
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Frendi S, Martineau C, Cazier H, Nicolle R, Chassac A, Albuquerque M, Raffenne J, Le Faouder J, Paradis V, Cros J, Couvelard A, Rebours V. Role of the fatty pancreatic infiltration in pancreatic oncogenesis. Sci Rep 2024; 14:6582. [PMID: 38503902 PMCID: PMC10951200 DOI: 10.1038/s41598-024-57294-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 03/16/2024] [Indexed: 03/21/2024] Open
Abstract
Although pancreatic precancerous lesions are known to be related to obesity and fatty pancreatic infiltration, the mechanisms remain unclear. We assessed the role of fatty infiltration in the process of pancreatic oncogenesis and obesity. A combined transcriptomic, lipidomic and pathological approach was used to explore neoplastic transformations. Intralobular (ILF) and extralobular (ELF) lipidomic profiles were analyzed to search for lipids associated with pancreatic intraepithelial neoplasia (PanINs) and obesity; the effect of ILF and ELF on acinar tissue and the histopathological aspects of pancreatic parenchyma changes in obese (OB) and non-obese patients. This study showed that the lipid composition of ILF was different from that of ELF. ILF was related to obesity and ELF-specific lipids were correlated to PanINs. Acinar cells were shown to have different phenotypes depending on the presence and proximity to ILF in OB patients. Several lipid metabolic pathways, oxidative stress and inflammatory pathways were upregulated in acinar tissue during ILF infiltration in OB patients. Early acinar transformations, called acinar nodules (AN) were linked to obesity but not ELF or ILF suggesting that they are the first reversible precancerous pancreatic lesions to occur in OB patients. On the other hand, the number of PanINs was higher in OB patients and was positively correlated to ILF and ELF scores as well as to fibrosis. Our study suggests that two types of fat infiltration must be distinguished, ELF and ILF. ILF plays a major role in acinar modifications and the development of precancerous lesions associated with obesity, while ELF may play a role in the progression of PDAC.
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Affiliation(s)
- Sonia Frendi
- Inflammation Research Center (CRI), INSERM, U1149, Paris-Cité University, 75018, Paris, France
| | - Chloé Martineau
- Pancreatology and digestive oncology Department - DMU Digest, Beaujon Hospital, AP-HP, Paris-Cité University, 100 Boulevard du Général Leclerc, 92110, Clichy, France
| | - Hélène Cazier
- Inflammation Research Center (CRI), INSERM, U1149, Paris-Cité University, 75018, Paris, France
| | - Rémy Nicolle
- INSERM U1149, CNRS ERL 8252, Inflammation Research Center (CRI), Paris-Cité University, 75018, Paris, France
| | - Anaïs Chassac
- Pathology Department, Bichat Hospital, AP-HP, Paris-Cité University, Paris, France
| | - Miguel Albuquerque
- Inflammation Research Center (CRI), INSERM, U1149, Paris-Cité University, 75018, Paris, France
- Pathology Department, FHU MOSAIC, AP-HP, Beaujon Hospital, Clichy, France
| | | | - Julie Le Faouder
- Inflammation Research Center (CRI), INSERM, U1149, Paris-Cité University, 75018, Paris, France
| | - Valérie Paradis
- Inflammation Research Center (CRI), INSERM, U1149, Paris-Cité University, 75018, Paris, France
- Pathology Department, FHU MOSAIC, AP-HP, Beaujon Hospital, Clichy, France
| | - Jérôme Cros
- Inflammation Research Center (CRI), INSERM, U1149, Paris-Cité University, 75018, Paris, France
- Pathology Department, FHU MOSAIC, AP-HP, Beaujon Hospital, Clichy, France
| | - Anne Couvelard
- Inflammation Research Center (CRI), INSERM, U1149, Paris-Cité University, 75018, Paris, France
- Pathology Department, Bichat Hospital, AP-HP, Paris-Cité University, Paris, France
| | - Vinciane Rebours
- Inflammation Research Center (CRI), INSERM, U1149, Paris-Cité University, 75018, Paris, France.
- Pancreatology and digestive oncology Department - DMU Digest, Beaujon Hospital, AP-HP, Paris-Cité University, 100 Boulevard du Général Leclerc, 92110, Clichy, France.
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13
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Szlapinski SK, Hill DJ. In vivo models of gestational and type 2 diabetes mellitus characterized by endocrine pancreas cell impairments. J Endocrinol 2024; 260:e230317. [PMID: 38197871 DOI: 10.1530/joe-23-0317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 01/10/2024] [Indexed: 01/11/2024]
Abstract
Insulin resistance contributes to the development of various diseases, including type 2 diabetes and gestational diabetes. Even though gestational diabetes is specific to pregnancy, it can result in long-term glucose intolerance and type 2 diabetes after delivery. Given the substantial health and economic burdens associated with diabetes, it is imperative to better understand the mechanisms leading to insulin resistance and type 2 diabetes so that treatments targeted at reversing symptoms can be developed. Considering that the endocrine cells of the pancreas (islets of Langerhans) largely contribute to the pathogenesis of diabetes (beta-cell insufficiency and dysfunction), the elucidation of the various mechanisms of endocrine cell plasticity is important to understand. By better defining these mechanisms, targeted therapeutics can be developed to reverse symptoms of beta-cell deficiency and insulin resistance in diabetes. Animal models play an important role in better understanding these mechanisms, as techniques for in vivo imaging of endocrine cells in the pancreas are limited. Therefore, this review article will discuss the available rodent models of gestational and type 2 diabetes that are characterized by endocrine cell impairments in the pancreas, discuss the models with a comparison to human diabetes, and explore the potential mechanisms of endocrine cell plasticity that contribute to these phenotypes, as these mechanisms could ultimately be used to reverse blood glucose dysregulation in diabetes.
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Affiliation(s)
| | - David J Hill
- Diabetes, Endocrinology and Metabolism, Lawson Health Research Institute, London, Ontario, Canada
- Physiology and Pharmacology, Western University, London, Ontario, Canada
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14
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Goodarzi N, Bashiri A. Histology and immunofluorescent study of the pancreas in lovebird (Agapornis personatus). Vet Med Sci 2024; 10:e1394. [PMID: 38459816 PMCID: PMC10924273 DOI: 10.1002/vms3.1394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2024] Open
Abstract
BACKGROUND Lovebird (Agapornis personatus) is a monotypic species of bird of the lovebird genus in the parrot family Psittaculidae and order Psittaciformes. OBJECTIVES The present study was designed to investigate the histology and immunohistochemistry of the pancreas in the lovebird. METHODS Totally, three adult birds were used. The pancreas was assessed using histological and immunofluorescent staining to detect insulin, glucagon, somatostatin, pancreatic polypeptide (PP) and neuropeptide Y (NY). RESULTS The exocrine pancreas was composed of pyramidal acinar cells with zymogen granules at the apical cytoplasm. The endocrine pancreas was identified as large alpha, small beta and mixed islets of Langerhans. No intercalated duct was observed. Alpha cells with a density of 28.55% were the most numerous cell type, which were populated throughout the large islets, especially at the periphery. The beta cells with a density of 15.78% were accumulated mostly at the periphery of islets. The delta cells exhibited 17.81% intensity. Despite their lower density, the distribution of delta cells was like that of A cells throughout the islets. PP and NY cells were distinguished with densities of 14.69% and 20.63%, respectively. CONCLUSIONS Although the arrangement of acinar cells, ductal systems and endocrine islets reflects patterns observed in various avian species, the absence of intercalated duct, the presence of three types of Langerhans islets as alpha, beta and mixed islets and the high expression of NY in the islets were some unique features observed in the current study. These findings contribute to the broader understanding of avian pancreas histology.
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Affiliation(s)
- Nader Goodarzi
- Department of Basic Sciences and Pathobiology, Faculty of Veterinary MedicineRazi UniversityKermanshahIran
| | - Ayda Bashiri
- Faculty of Veterinary Medicine, Islamic Azad UniversitySanandaj BranchSanandajIran
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15
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Zeng S, Wang Y, Ai L, Huang L, Liu Z, He C, Bai Q, Li Y. Chronic intermittent hypoxia-induced oxidative stress activates TRB3 and phosphorylated JNK to mediate insulin resistance and cell apoptosis in the pancreas. Clin Exp Pharmacol Physiol 2024; 51:e13843. [PMID: 38302075 DOI: 10.1111/1440-1681.13843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 01/03/2024] [Accepted: 01/04/2024] [Indexed: 02/03/2024]
Abstract
This study explores the potential mechanisms of obstructive sleep apnoea (OSA) complicates type 2 diabetes mellitus (T2DM) by which chronic intermittent hypoxia (CIH) induces insulin resistance and cell apoptosis in the pancreas through oxidative stress. Four- and eight-week CIH rat models were established, and Tempol (100 mg/kg/d), was used as an oxidative stress inhibitor. This study included five groups: 4-week CIH, 4-week CIH-Tempol, 8-week CIH, 8-week CIH-Tempol and normal control (NC) groups. Fasting blood glucose and insulin levels were measured in the serum. The expression levels of 8-hidroxy-2-deoxyguanosine (8-OHdG), tribbles homologue 3 (TRB3), c-Jun N-terminal kinase (JNK), phosphorylated JNK (p-JNK), insulin receptor substrate-1 (IRS-1), phosphorylated IRS-1 (Ser307) (p-IRS-1ser307 ), protein kinase B (AKT), phosphorylated AKT (Ser473) (p-AKTser473 ), B cell lymphoma protein-2 (Bcl-2), cleaved-caspase-3 (Cl-caspase-3), and the islet cell apoptosis were detected in the pancreas. CIH induced oxidative stress in the pancreas. Compared with that in the NC group and CIH-Tempol groups individually, the homeostasis model assessment of insulin resistance (HOMA-IR) and apoptosis of islet cells was increased in the CIH groups. CIH-induced oxidative stress increased the expression of p-IRS-1Ser307 and decreased the expression of p-AKTSer473 . The expression levels of TRB3 and p-JNK were higher in the CIH groups than in both the CIH-Tempol and NC groups. Meanwhile, the expressions of Cl-caspase-3 and Bcl-2 were upregulated and downregulated, respectively, in the CIH groups. Hence, the present study demonstrated that CIH-induced oxidative stress might not only induce insulin resistance but also islet cell apoptosis in the pancreas through TRB3 and p-JNK.
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Affiliation(s)
- Shan Zeng
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yeying Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Kunming Medical University, Kunming, China
| | - Li Ai
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Liwei Huang
- Department of Epidemiology and Biostatistics, School of Public Health, Kunming Medical University, Kunming, China
| | - Zhijuan Liu
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Chunxia He
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Qiaohui Bai
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yongxia Li
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
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16
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Virostko J, Wright JJ, Williams JM, Hilmes MA, Triolo TM, Broncucia H, Du L, Kang H, Nallaparaju S, Valencia LG, Reyes D, Hammel B, Russell WE, Philipson LH, Waibel M, Kay TW, Thomas HE, Greeley SAW, Steck AK, Powers AC, Moore DJ. Longitudinal Assessment of Pancreas Volume by MRI Predicts Progression to Stage 3 Type 1 Diabetes. Diabetes Care 2024; 47:393-400. [PMID: 38151474 PMCID: PMC10909689 DOI: 10.2337/dc23-1681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 11/30/2023] [Indexed: 12/29/2023]
Abstract
OBJECTIVE This multicenter prospective cohort study compared pancreas volume as assessed by MRI, metabolic scores derived from oral glucose tolerance testing (OGTT), and a combination of pancreas volume and metabolic scores for predicting progression to stage 3 type 1 diabetes (T1D) in individuals with multiple diabetes-related autoantibodies. RESEARCH DESIGN AND METHODS Pancreas MRI was performed in 65 multiple autoantibody-positive participants enrolled in the Type 1 Diabetes TrialNet Pathway to Prevention study. Prediction of progression to stage 3 T1D was assessed using pancreas volume index (PVI), OGTT-derived Index60 score and Diabetes Prevention Trial-Type 1 Risk Score (DPTRS), and a combination of PVI and DPTRS. RESULTS PVI, Index60, and DPTRS were all significantly different at study entry in 11 individuals who subsequently experienced progression to stage 3 T1D compared with 54 participants who did not experience progression (P < 0.005). PVI did not correlate with metabolic testing across individual study participants. PVI declined longitudinally in the 11 individuals diagnosed with stage 3 T1D, whereas Index60 and DPTRS increased. The area under the receiver operating characteristic curve for predicting progression to stage 3 from measurements at study entry was 0.76 for PVI, 0.79 for Index60, 0.79 for DPTRS, and 0.91 for PVI plus DPTRS. CONCLUSIONS These findings suggest that measures of pancreas volume and metabolism reflect distinct components of risk for developing stage 3 type 1 diabetes and that a combination of these measures may provide superior prediction than either alone.
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Affiliation(s)
- John Virostko
- Department of Diagnostic Medicine, Dell Medical School, University of Texas at Austin, Austin, TX
- Livestrong Cancer Institutes, Dell Medical School, University of Texas at Austin, Austin, TX
- Department of Oncology, Dell Medical School, University of Texas at Austin, Austin, TX
- Oden Institute for Computational Engineering and Sciences, University of Texas at Austin, Austin, TX
| | - Jordan J. Wright
- Department of Medicine, Division of Diabetes, Endocrinology, and Metabolism, Vanderbilt University Medical Center, Nashville, TN
- VA Tennessee Valley Healthcare System, Nashville, TN
| | - Jonathan M. Williams
- Department of Medicine, Division of Diabetes, Endocrinology, and Metabolism, Vanderbilt University Medical Center, Nashville, TN
| | - Melissa A. Hilmes
- Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN
| | - Taylor M. Triolo
- Barbara Davis Center for Childhood Diabetes, University of Colorado, Aurora, CO
| | - Hali Broncucia
- Barbara Davis Center for Childhood Diabetes, University of Colorado, Aurora, CO
| | - Liping Du
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN
| | - Hakmook Kang
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN
| | - Shreya Nallaparaju
- Department of Diagnostic Medicine, Dell Medical School, University of Texas at Austin, Austin, TX
| | | | - Demetra Reyes
- Section of Adult and Pediatric Endocrinology, Diabetes and Metabolism, Kovler Diabetes Center, University of Chicago, Chicago, IL
| | - Brenna Hammel
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN
| | - William E. Russell
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN
| | - Louis H. Philipson
- Section of Adult and Pediatric Endocrinology, Diabetes and Metabolism, Kovler Diabetes Center, University of Chicago, Chicago, IL
| | - Michaela Waibel
- Immunology and Diabetes Unit, St Vincent’s Institute, Fitzroy, Victoria, Australia
| | - Thomas W.H. Kay
- Immunology and Diabetes Unit, St Vincent’s Institute, Fitzroy, Victoria, Australia
- Department of Medicine, St Vincent’s Hospital, University of Melbourne, Fitzroy, Victoria, Australia
| | - Helen E. Thomas
- Immunology and Diabetes Unit, St Vincent’s Institute, Fitzroy, Victoria, Australia
- Department of Medicine, St Vincent’s Hospital, University of Melbourne, Fitzroy, Victoria, Australia
| | - Siri Atma W. Greeley
- Section of Adult and Pediatric Endocrinology, Diabetes and Metabolism, Kovler Diabetes Center, University of Chicago, Chicago, IL
| | - Andrea K. Steck
- Barbara Davis Center for Childhood Diabetes, University of Colorado, Aurora, CO
| | - Alvin C. Powers
- Department of Medicine, Division of Diabetes, Endocrinology, and Metabolism, Vanderbilt University Medical Center, Nashville, TN
- VA Tennessee Valley Healthcare System, Nashville, TN
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN
| | - Daniel J. Moore
- Department of Pathology, Immunology, and Microbiology, Vanderbilt University, Nashville, TN
- Department of Pediatrics, Ian Burr Division of Endocrinology and Diabetes, Monroe Carell Jr Children's Hospital, Vanderbilt University Medical Center, Nashville, TN
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17
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Yan J, Wang M, Lv S, Chen D, Wu Z, Zhou D, Zhang S, Lv J, Xu K, Xu C, Wei Y. SiATG5-loaded cancer cell membrane-fused liposomes induced increased uptake of albumin-bound chemotherapeutics by pancreatic cancer cells. J Control Release 2024; 367:620-636. [PMID: 38311244 DOI: 10.1016/j.jconrel.2024.01.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 01/24/2024] [Accepted: 01/25/2024] [Indexed: 02/10/2024]
Abstract
Chemotherapeutic efficacy for pancreatic cancer is severely compromised by limited drug availability to tumor cells. Herein, we constructed a cancer cell membrane-fused liposome containing a siATG5-loaded calcium phosphate (CaP) core, termed CLip@siATG5. Through cancer cell membrane camouflage, the liposomes evaded immune clearance, actively infiltrated tumor tissues, and were preferentially taken up by homotypic tumor cells. Then, siATG5 escaped from the endosomes and was liberated in the cytoplasm, mainly benefiting from CaP dissolution-induced endosome rupture and liposome disassembly in acidic endosomes. The released siATG5 silenced autophagy protein 5 (ATG5) to inhibit autophagy, starving tumor cells. An alternative nutrient procurement pathway, macropinocytosis, was then upregulated in the cells, leading to increased uptake of the albumin-bound chemotherapeutic agent (nanoparticle albumin-bound paclitaxel (Nab-PTX)). Finally, in a murine pancreatic cancer model, CLip@siATG5 combined with Nab-PTX exerted superior efficacy to a twofold dose of Nab-PTX while avoiding its toxicity. Overall, we justified enhancing chemotherapeutic delivery by modulating the pancreatic cancer cell metabolism, which will enlighten the development of more effective chemotherapeutic adjuvants for pancreatic cancer in the future.
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Affiliation(s)
- Jing Yan
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China; Institute of Medicine, Shanghai University, Shanghai 200444, China
| | - Miaomiao Wang
- Department of Rehabilitation Medicine, Shanghai Zhongye Hospital, Shanghai 200941, China
| | - Shunli Lv
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - Dagui Chen
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China
| | - Ziqing Wu
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China; Institute of Medicine, Shanghai University, Shanghai 200444, China
| | - Dongyang Zhou
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China; Institute of Medicine, Shanghai University, Shanghai 200444, China
| | - Shudong Zhang
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China; Institute of Medicine, Shanghai University, Shanghai 200444, China
| | - Jiajing Lv
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China; Institute of Medicine, Shanghai University, Shanghai 200444, China
| | - Ke Xu
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China; Organoid Research Center, Shanghai University, Shanghai 200444, China; Wenzhou Institute of Shanghai University, Wenzhou 325000, China.
| | - Can Xu
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai 200433, China.
| | - Yan Wei
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China; Organoid Research Center, Shanghai University, Shanghai 200444, China.
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18
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Sun Y, Li G, Hong H, Zhu L, Kung HF, Zhang Y, Zhu J. Serotonin transporter imaging agent as a probe for β-cells of pancreas. Nucl Med Biol 2024; 130-131:108894. [PMID: 38422917 DOI: 10.1016/j.nucmedbio.2024.108894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 02/22/2024] [Accepted: 02/23/2024] [Indexed: 03/02/2024]
Abstract
OBJECTIVE Diabetes mellitus (DM) is one of the major diseases in the world. Nuclear medicine imaging may be able to detect functional status of pancreatic β cells in vivo, which might elucidate the pathological mechanisms of diabetes and develop individualized treatment plans. In this study, we evaluated the ability of [125I]ADAM, a serotonin transporter (SERT) imaging agent, as a probe for detecting pancreatic β-cell mass (BCM). METHODS In vitro cell studies were evaluated in INS-1 cells (rat islet β cell line). Biodistribution studies were performed in male normal Sprague-Dawley rats and alloxan-induced type 1 diabetes mellitus (T1DM) rats. Distribution and expression of SERT protein in pancreas of rats were also measured by immunofluorescence staining and Western blot. RESULTS In vitro cell studies showed that the concentration of [125I]ADAM associated with the INS-1 cells was increased gradually with incubation time, and the SERT specific inhibitor, escitalopram, exhibited the inhibitory effect on this interaction. Biodistribution studies also showed that the uptake of [125I]ADAM in the pancreas of normal rats was decreased in the presence of escitalopram. However, in the T1DM rat model with a significant β cells reduction, the uptake of pancreas was increased when compared with the control. Through immunofluorescence staining and Western blot, it was found that both the endocrine and exocrine cells of the normal pancreas expressed SERT protein, and the level of SERT protein in the exocrine cells was higher than islets. In the diabetic state, the expression of SERT in the exocrine cells was further increased. CONCLUSIONS The SERT imaging agent, [125I]ADAM, at the present form will not be suitable for imaging β cells, specifically because there were extraordinarily high non-specific signals contributing from the exocrine cells of pancreas. In addition, we noticed that the level of SERT expression was abnormally elevated in the diabetic state, which might provide an unexpected target for studying the pathological mechanisms of diabetes.
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Affiliation(s)
- Yuli Sun
- Department of Physiology and Pathophysiology, School of Basic Medical Science, Capital Medical University, Beijing 100069, China
| | - Guangwen Li
- Department of Physiology and Pathophysiology, School of Basic Medical Science, Capital Medical University, Beijing 100069, China
| | - Haiyan Hong
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Lin Zhu
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Hank F Kung
- Department of Radiology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Yan Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Science, Capital Medical University, Beijing 100069, China.
| | - Jinxia Zhu
- Department of Physiology and Pathophysiology, School of Basic Medical Science, Capital Medical University, Beijing 100069, China.
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19
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Routh S, Manickam V. Epigenetic alterations dictating the inflammation: A view through pancreatitis. Life Sci 2024; 338:122383. [PMID: 38158041 DOI: 10.1016/j.lfs.2023.122383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/16/2023] [Accepted: 12/20/2023] [Indexed: 01/03/2024]
Abstract
Pancreatitis is a severe inflammation in the pancreas and accounts for one of the leading gastrointestinal disorders worldwide, and presently pacing up with the morbidity and mortality rates. It has been noted that severe recurrences of acute pancreatitis lead to chronic inflammation and fibrosis of the pancreas which may further result to a long-term risk of pancreatic carcinogenesis which has a lower survival rate and worse prognosis. Several genetic and epigenetic mechanisms have been reported to orchestrate disease development. Intriguingly, concurrent epigenetic alterations can also control the genes responsible for the pathophysiology of several inflammatory pathways. Deciphering how epigenetic changes affect the inflammatory processes in pancreatitis and body's response to various therapeutic modalities may help to manage the condition more effectively. The current review will concentrate on several epigenetic changes in general and how specifically they are implicated in pancreatitis pathogenesis. Further, this review summarizes the involvement of inflammation in pancreatitis from an epigenetic perspective.
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Affiliation(s)
- Sreyoshi Routh
- School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Venkatraman Manickam
- School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India.
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20
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Li J, Ye E, Huang J, Xu M, Zhang J, Zhang J, Cai H, Zhang J. Cysteine-modified PEGylated nanoparticles for targeted delivery of methylprednisolone to pancreatitis. Eur J Pharm Biopharm 2024; 195:114179. [PMID: 38199584 DOI: 10.1016/j.ejpb.2024.114179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 11/24/2023] [Accepted: 01/03/2024] [Indexed: 01/12/2024]
Abstract
The timely suppression of inflammatory mediator production and mitigation of their effects on pancreatic acinar cells are crucial for the successful management of acute pancreatitis. To achieve effective treatment, we present a novel approach utilizing cysteine modified PEG nanoparticles for both precise accumulation at the site of pancreatitis and specific targeting of acinar cells. Methylprednisolone, a nonsteroidal anti-inflammatory drug, was tailored to enhance its circulation time in the bloodstream, preferentially accumulate in the pancreas and enhance cell uptake efficiency by acinar cells through specifically targeting L-Type amino acid transporter 1. The nanosystem significantly downregulated pro-inflammatory cytokines in plasma, resulting in the effective suppression of inflammation in acinar cells within an acute pancreatitis rat model. The utilization of the dual targeted therapy strategy holds considerable potential for the clinical management of pancreatitis.
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Affiliation(s)
- Jianbo Li
- Henan Key Laboratory for Pharmacology of Liver Diseases, BGI College & Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Ertai Ye
- Henan Key Laboratory for Pharmacology of Liver Diseases, BGI College & Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Jingwen Huang
- Henan Key Laboratory for Pharmacology of Liver Diseases, BGI College & Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Meng Xu
- Henan Key Laboratory for Pharmacology of Liver Diseases, BGI College & Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China; School of Basic Medical Science, Academy of Medical Science, Zhengzhou University, Zhengzhou 450001, China
| | - Jieke Zhang
- Henan Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Junrong Zhang
- Department of Pathogen Biology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Huijie Cai
- Henan Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Jinjie Zhang
- Henan Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China.
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21
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Sun J, Wang Y, Fu H, Kang F, Song J, Xu M, Ning G, Wang J, Wang W, Wang Q. Mettl3-Mediated m6A Methylation Controls Pancreatic Bipotent Progenitor Fate and Islet Formation. Diabetes 2024; 73:237-249. [PMID: 37963393 DOI: 10.2337/db23-0360] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 11/06/2023] [Indexed: 11/16/2023]
Abstract
The important role of m6A RNA modification in β-cell function has been established; however, how it regulates pancreatic development and endocrine differentiation remains unknown. Here, we generated transgenic mice lacking RNA methyltransferase-like 3 (Mettl3) specifically in Pdx1+ pancreatic progenitor cells and found the mice with the mutation developed hyperglycemia and hypoinsulinemia at age 2 weeks, along with an atrophic pancreas, reduced islet mass, and abnormal increase in ductal formation. At embryonic day 15.5, Mettl3 deletion had caused a significant loss of Ngn3+ endocrine progenitor cells, which was accompanied by increased Sox9+ ductal precursor cells. We identified histone deacetylase 1 (Hdac1) as the critical direct m6A target in bipotent progenitors, the degeneration of which caused abnormal activation of the Wnt/Notch signaling pathway and blocked endocrine differentiation. This transformation could be manipulated in embryonic pancreatic culture in vitro through regulation of the Mettl3-Hdac1-Wnt/Notch signaling axis. Our finding that Mettl3 determines endocrine lineage by modulating Hdac1 activity during the transition of bipotent progenitors might help in the development of targeted endocrine cell protocols for diabetes treatment. ARTICLE HIGHLIGHTS
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Affiliation(s)
- Jiajun Sun
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the People's Republic of China, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yanqiu Wang
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the People's Republic of China, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hui Fu
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the People's Republic of China, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fuyun Kang
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the People's Republic of China, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiaxi Song
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the People's Republic of China, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Min Xu
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the People's Republic of China, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Guang Ning
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the People's Republic of China, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jian Wang
- International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weiqing Wang
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the People's Republic of China, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qidi Wang
- Department of Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai National Clinical Research Center for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the People's Republic of China, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory for Endocrine Tumor, State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Sino-French Research Center for Life Sciences and Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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22
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Lu J, Pan T, Gao J, Cai X, Zhang H, Sha W, Lei T. Reduced Branched-Chain Amino Acid Intake Improved High-Fat Diet-Induced Nonalcoholic Fatty Pancreas Disease in Mice. Pancreas 2024; 53:e157-e163. [PMID: 38227616 DOI: 10.1097/mpa.0000000000002281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
OBJECTIVE To explore the effects of branched-chain amino acids (BCAAs) on nonalcoholic fatty pancreas disease (NAFPD) and its possible mechanism in high-fat diet (HFD) induced mice. MATERIALS AND METHODS Pancreatic morphology and lipid infiltration was assessed by hematoxylin-eosin staining and immunohistochemistry, and lipid levels in the pancreas were determined using colorimetric enzymatic method. Relevant mechanism was investigated using western blotting and biochemical test. RESULTS In HFD-fed mice, dietary BCAAs restriction could attenuate body weight increase, improve glucose metabolism, and reduce excessive lipid accumulation in the pancreas. Furthermore, expression of AMPKα and downstream uncoupling protein 1 were upregulated, while genes related to mammalian target of rapamycin complex 1 (mTORC1) signal pathway and lipid de novo synthesis were suppressed in HFD-BCAA restriction group compared with HFD and HFD-high BCAAs fed mice. In addition, BCAA restriction upregulated expression of BCAAs related metabolic enzymes including PPM1K and BCKDHA, and decreased the levels of BCAAs and branched chain keto acid in the pancreas. However, there was no difference in levels of lipid content in the pancreas and gene expression of AMPKα and mTORC1 between HFD and HFD-high BCAAs groups. CONCLUSIONS Branched-chain amino acid restriction ameliorated HFD-induced NAFPD in mice by activation of AMPKα pathway and suppression of mTORC1 pathway.
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Affiliation(s)
| | - Ting Pan
- Department of Endocrinology, West China Hospital, Sichuan University, Chengdu
| | - Jie Gao
- From the Department of Endocrinology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai
| | - Xinghua Cai
- Shanghai Putuo Central School of Clinical Medicine, Anhui Medical University, Anhui; and §School of Medical and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | | | - Wenjun Sha
- From the Department of Endocrinology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai
| | - Tao Lei
- From the Department of Endocrinology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai
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23
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El-Nagdy SA, Elfakharany YM, Morsy MM, Ahmad MM, Abd El-Fatah SS, Khayal EES. The role of fenugreek seed extract in alleviating pancreatic toxic effects and altering glucose homeostasis induced by acetamiprid via modulation of oxidative stress, apoptosis, and autophagy. Tissue Cell 2024; 86:102265. [PMID: 37948956 DOI: 10.1016/j.tice.2023.102265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 11/02/2023] [Accepted: 11/03/2023] [Indexed: 11/12/2023]
Abstract
Acetamiprid (ACMP) is a second-generation neonicotinoid that has been extensively used in the last few years. The present study examined the toxic effects of ACMP on the pancreas and glucose homeostasis through the evaluation of histological and biochemical changes and the possible ameliorative role of fenugreek seed extract (FG). Fifty adult albino rats were divided into 5 groups: negative control, positive control, FG-treated, ACMP-treated, and ACMP + FG-treated groups by oral gavage for 12 weeks. The ACMP-treated group highlighted significant elevations in plasma glucose, glycosylated haemoglobin levels (HbA1c), serum amylase, and serum lipase, along with a decrease in plasma insulin levels. In addition, significant increases in tumour necrosis factor- alpha (TNF-α) and malondialdehyde (MDA) were associated with reductions in the levels of interleukin 10 (IL-10), glutathione peroxidase, and catalase. Moreover, glucose-6-phosphatase and glycogen phosphorylase were significantly increased, with a significant reduction in hexokinase and liver glycogen stores. These biochemical changes were associated with histological changes in pancreatic sections stained by haematoxylin and eosin, Masson stain, and Orcein stain. ACMP-treated cells showed a marked reduction in β- cell immune reactivity to insulin, with pronounced p53, and beclin 1 immune expression. The use of FG with ACMP induced partial protection except for hexokinase and glycogen phosphorylase.
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Affiliation(s)
- Samah A El-Nagdy
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Zagazig University, Egypt
| | - Yara M Elfakharany
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Zagazig University, Egypt
| | - Manal Mohammad Morsy
- Department of Human Anatomy and Embryology, Faculty of Medicine, Zagazig University, Egypt
| | - Marwa M Ahmad
- Department of Human Anatomy and Embryology, Faculty of Medicine, Zagazig University, Egypt.
| | | | - Eman El-Sayed Khayal
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Zagazig University, Egypt
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24
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Murthy MHS, Jasbi P, Lowe W, Kumar L, Olaosebikan M, Roger L, Yang J, Lewinski N, Daniels N, Cowen L, Klein-Seetharaman J. Insulin signaling and pharmacology in humans and in corals. PeerJ 2024; 12:e16804. [PMID: 38313028 PMCID: PMC10838073 DOI: 10.7717/peerj.16804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 12/27/2023] [Indexed: 02/06/2024] Open
Abstract
Once thought to be a unique capability of the Langerhans islets in the pancreas of mammals, insulin (INS) signaling is now recognized as an evolutionarily ancient function going back to prokaryotes. INS is ubiquitously present not only in humans but also in unicellular eukaryotes, fungi, worms, and Drosophila. Remote homologue identification also supports the presence of INS and INS receptor in corals where the availability of glucose is largely dependent on the photosynthetic activity of the symbiotic algae. The cnidarian animal host of corals operates together with a 20,000-sized microbiome, in direct analogy to the human gut microbiome. In humans, aberrant INS signaling is the hallmark of metabolic disease, and is thought to play a major role in aging, and age-related diseases, such as Alzheimer's disease. We here would like to argue that a broader view of INS beyond its human homeostasis function may help us understand other organisms, and in turn, studying those non-model organisms may enable a novel view of the human INS signaling system. To this end, we here review INS signaling from a new angle, by drawing analogies between humans and corals at the molecular level.
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Affiliation(s)
| | - Paniz Jasbi
- School of Molecular Sciences, Arizona State University, Phoenix, AZ, USA
| | - Whitney Lowe
- Departments of Chemistry & Physics, Colorado School of Mines, Golden, CO, United States
| | - Lokender Kumar
- Departments of Chemistry & Physics, Colorado School of Mines, Golden, CO, United States
| | | | - Liza Roger
- School of Molecular Sciences, Arizona State University, Phoenix, AZ, USA
- School of Ocean Futures, Arizona State University, Tempe, AZ, United States of America
| | - Jinkyu Yang
- Department of Aeronautics & Astronautics, University of Washington, Seattle, WA, USA
| | - Nastassja Lewinski
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, VA, USA
| | - Noah Daniels
- Department of Computer Science, University of Rhode Island, Kingston, RI, USA
| | - Lenore Cowen
- Department of Computer Science, Tufts University, Medford, MA, USA
| | - Judith Klein-Seetharaman
- School of Molecular Sciences, Arizona State University, Phoenix, AZ, USA
- Departments of Chemistry & Physics, Colorado School of Mines, Golden, CO, United States
- College of Health Solutions, Arizona State University, Phoenix, AZ, United States
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25
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An Q, Zhang QH, Wang Y, Zhang HY, Liu YH, Zhang ZT, Zhang ML, Lin LJ, He H, Yang YF, Sun P, Zhou ZY, Song QW, Liu AL. Association between type 2 diabetes mellitus and body composition based on MRI fat fraction mapping. Front Public Health 2024; 12:1332346. [PMID: 38322122 PMCID: PMC10846073 DOI: 10.3389/fpubh.2024.1332346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 01/02/2024] [Indexed: 02/08/2024] Open
Abstract
Purpose To explore the association between type 2 diabetes mellitus (T2DM) and body composition based on magnetic resonance fat fraction (FF) mapping. Methods A total of 341 subjects, who underwent abdominal MRI examination with FF mapping were enrolled in this study, including 68 T2DM patients and 273 non-T2DM patients. The FFs and areas of visceral adipose tissue (VAT), subcutaneous adipose tissue (SAT) and abdominal muscle (AM) were measured at the level of the L1-L2 vertebral. The FF of bone marrow adipose tissue (BMAT) was determined by the averaged FF values measured at the level of T12 and L1 vertebral, respectively. The whole hepatic fat fraction (HFF) and pancreatic fat fraction (PFF) were measured based on 3D semi-automatic segmentation on the FF mapping. All data were analyzed by GraphPad Prism and MedCalc. Results VAT area, VAT FF, HFF, PFF of T2DM group were higher than those of non-T2DM group after adjusting for age and sex (P < 0.05). However, there was no differences in SAT area, SAT FF, BMAT FF, AM area and AM FF between the two groups (P > 0.05). VAT area and PFF were independent risk factors of T2DM (all P < 0.05). The area under the curve (AUC) of the receiver operating characteristic (ROC) for VAT area and PFF in differentiating between T2DM and non-T2DM were 0.685 and 0.787, respectively, and the AUC of PFF was higher than VAT area (P < 0.05). Additionally, in seemingly healthy individuals, the SAT area, VAT area, and AM area were found to be significantly associated with being overweight and/or obese (BMI ≥ 25) (all P < 0.05). Conclusions In this study, it was found that there were significant associations between T2DM and VAT area, VAT FF, HFF and PFF. In addition, VAT area and PFF were the independent risk factors of T2DM. Especially, PFF showed a high diagnostic performance in discrimination between T2DM and non-T2DM. These findings may highlight the crucial role of PFF in the pathophysiology of T2DM, and it might be served as a potential imaging biomarker of the prevention and treatment of T2DM. Additionally, in individuals without diabetes, focusing on SAT area, VAT area and AM area may help identify potential health risks and provide a basis for targeted weight management and prevention measures.
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Affiliation(s)
- Qi An
- Department of Radiology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Qin-He Zhang
- Department of Radiology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yue Wang
- Department of Radiology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Han-Yue Zhang
- Department of Radiology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yu-Hui Liu
- Department of Medical Imaging, Dalian Medical University, Dalian, China
| | - Zi-Ting Zhang
- Department of Medical Imaging, Dalian Medical University, Dalian, China
| | - Mei-Ling Zhang
- Department of Medical Imaging, Dalian Medical University, Dalian, China
| | | | - Hui He
- Department of Thyroid, Metabolic Diseases and Hernia Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yi-Fan Yang
- Department of Thyroid, Metabolic Diseases and Hernia Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Peng Sun
- Philips Healthcare, Beijing, China
| | | | - Qing-Wei Song
- Department of Radiology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Ai-Lian Liu
- Department of Radiology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
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Li X, Ren H, Xu H, Han X, Lu J, Yang Z. Behind BMI: The Potential Indicative Role of Abdominal Ectopic Fat on Glucose Metabolism. Obes Facts 2024; 17:158-168. [PMID: 38246158 PMCID: PMC10987183 DOI: 10.1159/000536160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 01/04/2024] [Indexed: 01/23/2024] Open
Abstract
INTRODUCTION The purpose of this study was to compare the difference in abdominal fat distribution between different metabolic groups and find the ectopic fat with the most risk significance. METHODS A total of 98 subjects were enrolled; there were 53 cases in the normal glucose metabolism group and 45 cases in the abnormal glucose metabolism group. Chemical shift-encoded magnetic resonance imaging was applied for quantification of pancreatic fat fraction (PFF) and hepatic fat fraction (HFF), subcutaneous adipose tissue (SAT), and visceral adipose tissue (VAT). The correlation and the difference of fat distribution between different metabolism groups were analyzed. The receiver operating characteristic (ROC) curve was used to analyze the suggestive effect of different body fat fraction. RESULTS Correlation analysis showed that body mass index (BMI) had the strongest correlation with fasting insulin (r = 0.473, p < 0.001), HOMA-IR (r = 0.363, p < 0.001), and C-reactive protein (r = 0.245, p < 0.05). Pancreatic fat has a good correlation with fasting blood glucose (r = 0.247, p < 0.05) and HbA1c (r = 0.363, p < 0.001). With the increase of BMI, PFF, VAT, and SAT showed a clear upward trend, but liver fat was distributed relatively more randomly. The pancreatic fat content in the abnormal glucose metabolism group is significantly higher than that in the normal group, and pancreatic fat is also a reliable indicator of abnormal glucose metabolism, especially in the normal and overweight groups (the area under the curve was 0.859 and 0.864, respectively). CONCLUSION MR-based fat quantification techniques can provide additional information on fat distribution. There are differences in fat distribution among people with different metabolic status. People with more severe pancreatic fat deposition have a higher risk of glucose metabolism disorders.
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Affiliation(s)
- Xiaoyang Li
- Beijing Friendship Hospital, Capital Medical University, Beijing, China,
| | - Hao Ren
- Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Hui Xu
- Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Xinjun Han
- Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Jun Lu
- Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Zhenghan Yang
- Beijing Friendship Hospital, Capital Medical University, Beijing, China
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Klug N, Burke J, Scott E. Rational Engineering of Islet Tolerance via Biomaterial-Mediated Immune Modulation. J Immunol 2024; 212:216-224. [PMID: 38166244 PMCID: PMC10766078 DOI: 10.4049/jimmunol.2300527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 10/17/2023] [Indexed: 01/04/2024]
Abstract
Type 1 diabetes (T1D) onset is characterized by an autoimmune attack on β islet cells within the pancreas, preventing the insulin secretion required to maintain glucose homeostasis. Targeted modulation of key immunoregulatory cell populations is a promising strategy to restore tolerance to β cells. This strategy can be used to prevent T1D onset or reverse T1D with transplanted islets. To this end, drug delivery systems can be employed to transport immunomodulatory cargo to specific cell populations that inhibit autoreactive T cell-mediated destruction of the β cell mass. The rational engineering of biomaterials into nanoscale and microscale drug carriers can facilitate targeted interactions with immune cells. The physicochemical properties of the biomaterial, the delivered immunomodulatory agent, and the target cell populations are critical variables in the design of these delivery systems. In this review, we discuss recent biomaterials-based drug delivery approaches to induce islet tolerance and the need to consider both immune and metabolic markers of disease progression.
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Affiliation(s)
- Natalie Klug
- Department of Biomedical Engineering, Robert R. McCormick School of Engineering and Applied Science, Northwestern University, Evanston, IL
| | - Jacqueline Burke
- Department of Biomedical Engineering, Robert R. McCormick School of Engineering and Applied Science, Northwestern University, Evanston, IL
| | - Evan Scott
- Department of Microbiology-Immunology, Northwestern University Feinberg School of Medicine, Chicago, IL
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28
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He Q, Xu S, He F, Wu Z, Wu F, Zhou R, Zhou B, Li F, Yang X. Combined Proteomic and Phosphoproteomic Characterization of the Molecular Regulators and Functional Modules During Pancreatic Progenitor Cell Development. J Proteome Res 2024; 23:40-51. [PMID: 37993262 DOI: 10.1021/acs.jproteome.3c00309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
Differentiated multipotent pancreatic progenitors have major advantages for both modeling pancreas development and preventing or treating diabetes. Despite significant advancements in inducing the differentiation of human pluripotent stem cells into insulin-producing cells, the complete mechanism governing proliferation and differentiation remains poorly understood. This study used large-scale mass spectrometry to characterize molecular processes at various stages of human embryonic stem cell (hESC) differentiation toward pancreatic progenitors. hESCs were induced into pancreatic progenitor cells in a five-stage differentiation protocol. A high-performance liquid chromatography-mass spectrometry platform was used to undertake comprehensive proteome and phosphoproteome profiling of cells at different stages. A series of bioinformatic explorations, including coregulated modules, gene regulatory networks, and phosphosite enrichment analysis, were then conducted. A total of 27,077 unique phosphorylated sites and 8122 proteins were detected, including several cyclin-dependent kinases at the initial stage of cell differentiation. Furthermore, we discovered that ERK1, a member of the MAPK cascade, contributed to proliferation at an early stage. Finally, Western blotting confirmed that the phosphosites from SIRT1 and CHEK1 could inhibit the corresponding substrate abundance in the late stage. Thus, this study extends our understanding of the molecular mechanism during pancreatic cell development.
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Affiliation(s)
- Qian He
- Translational Medicine Collaborative Innovation Center, Shenzhen People's Hospital (The First Affiliated Hospital, Southern University of Science and Technology; the Second Clinical Medical College of Jinan University), Shenzhen 518055, China
- School of Food and Drug, Shenzhen Polytechnic, Shenzhen 518055, China
- Guangdong Engineering Technology Research Center of Stem Cell and Cell Therapy, Shenzhen Key Laboratory of Stem Cell Research and Clinical Transformation, Shenzhen Immune Cell Therapy Public Service Platform, Shenzhen 518020, China
- Institute of Health Medicine, Southern University of Science and Technology, Shenzhen 518055, China
| | - Shaohang Xu
- Deepxomics Co., Ltd., Shenzhen 518000, China
| | - Fei He
- Translational Medicine Collaborative Innovation Center, Shenzhen People's Hospital (The First Affiliated Hospital, Southern University of Science and Technology; the Second Clinical Medical College of Jinan University), Shenzhen 518055, China
- Guangdong Engineering Technology Research Center of Stem Cell and Cell Therapy, Shenzhen Key Laboratory of Stem Cell Research and Clinical Transformation, Shenzhen Immune Cell Therapy Public Service Platform, Shenzhen 518020, China
- Institute of Health Medicine, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zubiao Wu
- Translational Medicine Collaborative Innovation Center, Shenzhen People's Hospital (The First Affiliated Hospital, Southern University of Science and Technology; the Second Clinical Medical College of Jinan University), Shenzhen 518055, China
- Guangdong Engineering Technology Research Center of Stem Cell and Cell Therapy, Shenzhen Key Laboratory of Stem Cell Research and Clinical Transformation, Shenzhen Immune Cell Therapy Public Service Platform, Shenzhen 518020, China
- Institute of Health Medicine, Southern University of Science and Technology, Shenzhen 518055, China
| | - Fujian Wu
- Translational Medicine Collaborative Innovation Center, Shenzhen People's Hospital (The First Affiliated Hospital, Southern University of Science and Technology; the Second Clinical Medical College of Jinan University), Shenzhen 518055, China
- Guangdong Engineering Technology Research Center of Stem Cell and Cell Therapy, Shenzhen Key Laboratory of Stem Cell Research and Clinical Transformation, Shenzhen Immune Cell Therapy Public Service Platform, Shenzhen 518020, China
- Post-doctoral Scientific Research Station of Basic Medicine, Jinan University, Guangzhou 510632, China
- Institute of Health Medicine, Southern University of Science and Technology, Shenzhen 518055, China
| | - Ruo Zhou
- Deepxomics Co., Ltd., Shenzhen 518000, China
| | - Baojin Zhou
- Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Furong Li
- Translational Medicine Collaborative Innovation Center, Shenzhen People's Hospital (The First Affiliated Hospital, Southern University of Science and Technology; the Second Clinical Medical College of Jinan University), Shenzhen 518055, China
- Guangdong Engineering Technology Research Center of Stem Cell and Cell Therapy, Shenzhen Key Laboratory of Stem Cell Research and Clinical Transformation, Shenzhen Immune Cell Therapy Public Service Platform, Shenzhen 518020, China
- Institute of Health Medicine, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xiaofei Yang
- Translational Medicine Collaborative Innovation Center, Shenzhen People's Hospital (The First Affiliated Hospital, Southern University of Science and Technology; the Second Clinical Medical College of Jinan University), Shenzhen 518055, China
- Guangdong Engineering Technology Research Center of Stem Cell and Cell Therapy, Shenzhen Key Laboratory of Stem Cell Research and Clinical Transformation, Shenzhen Immune Cell Therapy Public Service Platform, Shenzhen 518020, China
- Institute of Health Medicine, Southern University of Science and Technology, Shenzhen 518055, China
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Hall LA, Powell-Brett S, Halle-Smith J, Ward L, Wiggins T, Markar SR, Roberts KJ. Pancreatic exocrine insufficiency after non-pancreatic upper gastrointestinal surgery: meta-analysis. Br J Surg 2024; 111:znad369. [PMID: 38064682 DOI: 10.1093/bjs/znad369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 09/12/2023] [Accepted: 10/14/2023] [Indexed: 01/07/2024]
Abstract
BACKGROUND Untreated pancreatic exocrine insufficiency (PEI) results in substantial patient harm. Upper gastrointestinal surgery (bariatric metabolic surgery and oesophagogastric resection) affects the delicate physiology of pancreatic exocrine function and may result in PEI. The aim of this study was to assimilate the literature on incidence, diagnosis, and management of PEI after bariatric metabolic surgery and oesophagogastric resection. METHODS A systematic review of PubMed, MEDLINE, and Embase databases identified studies investigating PEI after non-pancreatic upper gastrointestinal surgery. Meta-analyses were undertaken for incidence of PEI and benefit of pancreatic enzyme replacement therapy. RESULTS Among 1620 patients from 24 studies included in quantitative synthesis, 36.0% developed PEI. The incidence of PEI was 23.0 and 50.4% after bariatric metabolic surgery and oesophagogastric resection respectively. Notably, the incidence of PEI was 44% after biliopancreatic diversion with duodenal switch and 66.2% after total gastrectomy. The most common diagnostic test used was faecal elastase 1 (15 of 31 studies), with less than 200 µg/g being diagnostic of PEI. A total of 11 studies considered the management of pancreatic exocrine insufficiency, with 78.6% of patients responding positively to pancreatic enzyme replacement when it was prescribed. CONCLUSION PEI is common after non-pancreatic upper gastrointestinal surgery and patients may benefit from enzyme replacement therapy.
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Affiliation(s)
- Lewis A Hall
- Liver Unit, Queen Elizabeth Hospital Birmingham, University Hospitals Birmingham, Birmingham, UK
- College of Medical and Dental Scientists, University of Birmingham, Birmingham, UK
| | - Sarah Powell-Brett
- Liver Unit, Queen Elizabeth Hospital Birmingham, University Hospitals Birmingham, Birmingham, UK
| | - James Halle-Smith
- Liver Unit, Queen Elizabeth Hospital Birmingham, University Hospitals Birmingham, Birmingham, UK
| | - Liz Ward
- Department Therapies and Dietetics, Churchill Hospital, Oxford University Hospitals Foundation NHS Trust, Oxford, UK
| | - Tom Wiggins
- Department of Bariatric Surgery and Upper Gastrointestinal Surgery, Birmingham Heartlands Hospital, University Hospitals Birmingham, Birmingham, UK
| | - Sheraz R Markar
- Nuffield Department of Surgery, University of Oxford, Oxford, UK
| | - Keith J Roberts
- Liver Unit, Queen Elizabeth Hospital Birmingham, University Hospitals Birmingham, Birmingham, UK
- College of Medical and Dental Scientists, University of Birmingham, Birmingham, UK
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Tanaka S, Tsujimae M, Masuda A, Inoue J, Inomata N, Uemura H, Kohashi S, Nagao K, Masuda S, Abe S, Gonda M, Yamakawa K, Ashina S, Nakano R, Tanaka T, Yamada Y, Sakai A, Kobayashi T, Shiomi H, Fujita K, Anami T, Fujita T, Watanabe A, Kodama Y. Metabolic Syndrome Accelerates the Age-Related Increase of Intraductal Papillary Mucinous Neoplasm of the Pancreas. Pancreas 2024; 53:e9-e15. [PMID: 37890158 DOI: 10.1097/mpa.0000000000002267] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/29/2023]
Abstract
OBJECTIVES Aging is associated with a high prevalence of pancreatic cysts and intraductal papillary mucinous neoplasms (IPMNs). Metabolic syndrome (MS) may increase the risk of neoplasms, including those that develop in the pancreas. However, the influence of factors associated with MS on the development of IPMN remains unclear. METHODS A total of 9363 patients who underwent abdominal ultrasound examinations between April 2012 and May 2013 were included in this study. Multivariate logistic regression analysis was performed to identify factors associated with the presence of IPMN by age. RESULTS Pancreatic cysts were detected in 198 of 9363 patients, of whom 129 were found to have IPMNs. The presence of IPMN significantly correlated with age (10-year increments; odds ratio, 2.73; 95% CI, 2.28-3.29; P < 0.001). High body mass index, history of smoking, hyperlipidemia, hypertension, and MS were associated with a higher prevalence of IPMN with advancing age. In multivariate analysis, the presence of IPMN was more frequent in elderly patients with MS (odds ratio, 3.14; 95% CI, 3.14-6.72; P = 0.003). CONCLUSIONS The present study suggests that the incidence of IPMN increases with age and is accelerated in the presence of MS.
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Affiliation(s)
- Shunta Tanaka
- From the Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo
| | - Masahiro Tsujimae
- From the Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo
| | - Atsuhiro Masuda
- From the Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo
| | - Jun Inoue
- From the Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo
| | - Noriko Inomata
- From the Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo
| | - Hisahiro Uemura
- From the Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo
| | - Shinya Kohashi
- From the Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo
| | - Kae Nagao
- From the Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo
| | - Shigeto Masuda
- From the Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo
| | - Shohei Abe
- From the Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo
| | - Masanori Gonda
- From the Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo
| | - Kohei Yamakawa
- From the Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo
| | - Shigeto Ashina
- From the Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo
| | - Ryota Nakano
- From the Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo
| | - Takeshi Tanaka
- From the Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo
| | - Yasutaka Yamada
- From the Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo
| | - Arata Sakai
- From the Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo
| | - Takashi Kobayashi
- From the Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo
| | - Hideyuki Shiomi
- From the Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo
| | - Koichi Fujita
- Department of Gastroenterology, Yodogawa Christian Hospital, Osaka, Japan
| | - Takahiro Anami
- Department of Gastroenterology, Yodogawa Christian Hospital, Osaka, Japan
| | - Tsuyoshi Fujita
- Department of Gastroenterology, Yodogawa Christian Hospital, Osaka, Japan
| | - Akihiko Watanabe
- Department of Gastroenterology, Yodogawa Christian Hospital, Osaka, Japan
| | - Yuzo Kodama
- From the Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo
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Urcar Gelen S, Ozkanlar S, Gedikli S, Atasever M. The investigation of the effects of monosodium glutamate on healthy rats and rats with STZ-induced diabetes. J Biochem Mol Toxicol 2024; 38:e23612. [PMID: 38084638 DOI: 10.1002/jbt.23612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 06/14/2023] [Accepted: 11/21/2023] [Indexed: 01/18/2024]
Abstract
Monosodium glutamate (MSG, E621) is a flavor-enhancing food additive used widely in the food preparation industry and consumed regularly. It is considered that long-term consumption of MSG causes metabolic syndrome and obesity. Diabetes mellitus (DM) is a chronic metabolic disease characterized by high blood sugar, polyuria, polydipsia, and polyphagia, in which insulin secreted from pancreatic β cells is inadequate for maintaining blood glucose homeostasis. Rats were application 65 mg/kg streptozotocin (STZ) solution intraperitoneally and a diabetes model was created. For this purpose, freshly prepared STZ was injected into the peritoneum. Tumor necrosis factor-α, interleukin (IL)-10, IL-6, and IL-1β levels in STZ, MSG, and STZ + MSG groups were found to be significantly increased in inflammation parameters measured on the 28th day of administration when compared to the Control Group (p < 0.001). Also, although malondialdehyde (MDA) levels increased significantly in the STZ + MSG group when compared to the control group (p < 0.001), glutathione (GSH), and superoxide dismutase (SOD) levels were significantly decreased in the STZ, MSG, and STZ + MSG groups when compared to the control group (p < 0.001). Also, although glucose levels increased significantly in STZ and STZ + MSG at the end of the 28th day (p < 0.01), insulin levels decreased in STZ, MSG, and STZ + MSG groups when compared to the control groups (p < 0.01). As a result, it was found that STZ and MSG application significantly increased cytokine production, increased MDA, which is an oxidant parameter in pancreatic tissue, and decreased antioxidants (GSH and SOD) when compared to the control groups. It was also found that MSG disrupted the normal histological structure in pancreatic cells, and the damage was much more in both exocrine and endocrine pancreatic areas in the STZ + MSG group when compared to the STZ and MSG groups. It was considered that with the increased use of MSG, the susceptibility to DM might increase along with tissue damage significantly in diabetic groups, therefore, MSG must be used in a limited and controlled manner.
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Affiliation(s)
- Sevda Urcar Gelen
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - Seckin Ozkanlar
- Department of Biochemistry, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - Semin Gedikli
- Department of Histology and Embryology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - Mustafa Atasever
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
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Chakkera M, Foote JB, Farran B, Nagaraju GP. Breaking the stromal barrier in pancreatic cancer: Advances and challenges. Biochim Biophys Acta Rev Cancer 2024; 1879:189065. [PMID: 38160899 DOI: 10.1016/j.bbcan.2023.189065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 12/15/2023] [Accepted: 12/23/2023] [Indexed: 01/03/2024]
Abstract
Pancreatic cancer (PC) remains a leading cause of mortality worldwide due to the absence of early detection methods and the low success rates of traditional therapeutic strategies. Drug resistance in PC is driven by its desmoplastic stroma, which creates a barrier that shields cancer niches and prevents the penetration of drugs. The PC stroma comprises heterogeneous cellular populations and non-cellular components involved in aberrant ECM deposition, immunosuppression, and drug resistance. These components can influence PC development through intricate and complex crosstalk with the PC cells. Understanding how stromal components and cells interact with and influence the invasiveness and refractoriness of PC cells is thus a prerequisite for developing successful stroma-modulating strategies capable of remodeling the PC stroma to alleviate drug resistance and enhance therapeutic outcomes. In this review, we explore how non-cellular and cellular stromal components, including cancer-associated fibroblasts and tumor-associated macrophages, contribute to the immunosuppressive and tumor-promoting effects of the stroma. We also examine the signaling pathways underlying their activation, tumorigenic effects, and interactions with PC cells. Finally, we discuss recent pre-clinical and clinical work aimed at developing and testing novel stroma-modulating agents to alleviate drug resistance and improve therapeutic outcomes in PC.
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Affiliation(s)
- Mohana Chakkera
- Department of Hematology and Oncology, Heersink School of Medicine, University of Alabama, Birmingham, AL 35233, USA
| | - Jeremy B Foote
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35233, USA
| | - Batoul Farran
- Department of Oncology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Ganji Purnachandra Nagaraju
- Department of Hematology and Oncology, Heersink School of Medicine, University of Alabama, Birmingham, AL 35233, USA.
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Yadav N, Paul AT. Pancreatic lipase and its related proteins: where are we now? Drug Discov Today 2024; 29:103855. [PMID: 38081381 DOI: 10.1016/j.drudis.2023.103855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 11/27/2023] [Accepted: 12/06/2023] [Indexed: 12/19/2023]
Abstract
Obesity is a disease of epidemic proportions, with a worrisome upward trend. The high consumption of lipids, a major energy source, leads to obesity because of their high calorific value. Pancreatic lipase (PTL), produced by pancreatic acinar cells, hydrolyzes 50-70% of triacylglycerol (TAG) from food. PTL-related protein 1 (PLRP1) and 2 (PLRP2) are also produced by these cells. In vertebrates, PLRP1 has relatively less lipolytic activity, whereas PLRP2 has an essential role in lipid digestion, especially in infants. In this review, we summarize the structure and function of PTL, PLRP1, and PLRP2, and the metabolic fate of PTL inhibitors. We also discuss the current status of clinical trials on orlistat and its combinations for obesity treatment.
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Affiliation(s)
- Nisha Yadav
- Laboratory of Natural Product Chemistry, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Rajasthan 333031, India
| | - Atish T Paul
- Laboratory of Natural Product Chemistry, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Rajasthan 333031, India.
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Onengut-Gumuscu S, Webb-Robertson BJM, Sarkar S, Manichaikul A, Hu X, Frazer-Abel A, Holers VM, Rewers MJ, Rich SS. Genetic variants in the complement system and their potential link in the aetiology of type 1 diabetes. Diabetes Metab Res Rev 2024; 40:e3716. [PMID: 37649398 DOI: 10.1002/dmrr.3716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 06/30/2023] [Accepted: 08/09/2023] [Indexed: 09/01/2023]
Abstract
Type 1 diabetes is an autoimmune disease in which one's own immune system destroys insulin-secreting beta cells in the pancreas. This process results in life-long dependence on exogenous insulin for survival. Both genetic and environmental factors play a role in disease initiation, progression, and ultimate clinical diagnosis of type 1 diabetes. This review will provide background on the natural history of type 1 diabetes and the role of genetic factors involved in the complement system, as several recent studies have identified changes in levels of these proteins as the disease evolves from pre-clinical through to clinically apparent disease.
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Affiliation(s)
- Suna Onengut-Gumuscu
- Center for Public Health Genomics, University of Virginia, Charlottesville, Virginia, USA
| | - Bobbie-Jo M Webb-Robertson
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington, USA
- Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Soumyadeep Sarkar
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington, USA
| | - Ani Manichaikul
- Center for Public Health Genomics, University of Virginia, Charlottesville, Virginia, USA
| | - Xiaowei Hu
- Center for Public Health Genomics, University of Virginia, Charlottesville, Virginia, USA
| | - Ashley Frazer-Abel
- Exsera BioLabs, Division of Rheumatology, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - V Michael Holers
- Division of Rheumatology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Marian J Rewers
- Barbara Davis Center for Diabetes, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Stephen S Rich
- Center for Public Health Genomics, University of Virginia, Charlottesville, Virginia, USA
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35
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Cota P, Caliskan ÖS, Bastidas-Ponce A, Jing C, Jaki J, Saber L, Czarnecki O, Taskin D, Blöchinger AK, Kurth T, Sterr M, Burtscher I, Krahmer N, Lickert H, Bakhti M. Insulin regulates human pancreatic endocrine cell differentiation in vitro. Mol Metab 2024; 79:101853. [PMID: 38103636 PMCID: PMC10765254 DOI: 10.1016/j.molmet.2023.101853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 11/21/2023] [Accepted: 12/11/2023] [Indexed: 12/19/2023] Open
Abstract
OBJECTIVE The consequences of mutations in genes associated with monogenic forms of diabetes on human pancreas development cannot be studied in a time-resolved fashion in vivo. More specifically, if recessive mutations in the insulin gene influence human pancreatic endocrine lineage formation is still an unresolved question. METHODS To model the extremely reduced insulin levels in patients with recessive insulin gene mutations, we generated a novel knock-in H2B-Cherry reporter human induced pluripotent stem cell (iPSC) line expressing no insulin upon differentiation to stem cell-derived (SC-) β cells in vitro. Differentiation of iPSCs into the pancreatic and endocrine lineage, combined with immunostaining, Western blotting and proteomics analysis phenotypically characterized the insulin gene deficiency in SC-islets. Furthermore, we leveraged FACS analysis and confocal microscopy to explore the impact of insulin shortage on human endocrine cell induction, composition, differentiation and proliferation. RESULTS Interestingly, insulin-deficient SC-islets exhibited low insulin receptor (IR) signaling when stimulated with glucose but displayed increased IR sensitivity upon treatment with exogenous insulin. Furthermore, insulin shortage did not alter neurogenin-3 (NGN3)-mediated endocrine lineage induction. Nevertheless, lack of insulin skewed the SC-islet cell composition with an increased number in SC-β cell formation at the expense of SC-α cells. Finally, insulin deficiency reduced the rate of SC-β cell proliferation but had no impact on the expansion of SC-α cells. CONCLUSIONS Using iPSC disease modelling, we provide first evidence of insulin function in human pancreatic endocrine lineage formation. These findings help to better understand the phenotypic impact of recessive insulin gene mutations during pancreas development and shed light on insulin gene function beside its physiological role in blood glucose regulation.
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Affiliation(s)
- Perla Cota
- Institute of Diabetes and Regeneration Research, Helmholtz Munich, Neuherberg, Germany; German Center for Diabetes Research (DZD), Neuherberg, Germany; School of Medicine, Technical University of Munich (TUM), Munich, Germany
| | - Özüm Sehnaz Caliskan
- German Center for Diabetes Research (DZD), Neuherberg, Germany; Institute of Diabetes and Obesity, Helmholtz Munich, Neuherberg, Germany
| | - Aimée Bastidas-Ponce
- Institute of Diabetes and Regeneration Research, Helmholtz Munich, Neuherberg, Germany; German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Changying Jing
- Institute of Diabetes and Regeneration Research, Helmholtz Munich, Neuherberg, Germany; German Center for Diabetes Research (DZD), Neuherberg, Germany; Munich medical research school (MMRS), Ludwig Maximilian University (LMU), Munich, Germany
| | - Jessica Jaki
- Institute of Diabetes and Regeneration Research, Helmholtz Munich, Neuherberg, Germany; German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Lama Saber
- Institute of Diabetes and Regeneration Research, Helmholtz Munich, Neuherberg, Germany; German Center for Diabetes Research (DZD), Neuherberg, Germany; School of Medicine, Technical University of Munich (TUM), Munich, Germany
| | - Oliver Czarnecki
- Institute of Diabetes and Regeneration Research, Helmholtz Munich, Neuherberg, Germany; German Center for Diabetes Research (DZD), Neuherberg, Germany; School of Medicine, Technical University of Munich (TUM), Munich, Germany
| | - Damla Taskin
- Institute of Diabetes and Regeneration Research, Helmholtz Munich, Neuherberg, Germany
| | - Anna Karolina Blöchinger
- Institute of Diabetes and Regeneration Research, Helmholtz Munich, Neuherberg, Germany; German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Thomas Kurth
- Center for Molecular and Cellular Bioengineering (CMCB), Technology Platform Core Facility Electron Microscopy and Histology, Technische Universität Dresden, Dresden, Germany
| | - Michael Sterr
- Institute of Diabetes and Regeneration Research, Helmholtz Munich, Neuherberg, Germany; German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Ingo Burtscher
- Institute of Diabetes and Regeneration Research, Helmholtz Munich, Neuherberg, Germany; German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Natalie Krahmer
- German Center for Diabetes Research (DZD), Neuherberg, Germany; Institute of Diabetes and Obesity, Helmholtz Munich, Neuherberg, Germany
| | - Heiko Lickert
- Institute of Diabetes and Regeneration Research, Helmholtz Munich, Neuherberg, Germany; German Center for Diabetes Research (DZD), Neuherberg, Germany; School of Medicine, Technical University of Munich (TUM), Munich, Germany.
| | - Mostafa Bakhti
- Institute of Diabetes and Regeneration Research, Helmholtz Munich, Neuherberg, Germany; German Center for Diabetes Research (DZD), Neuherberg, Germany.
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Cabral-França T, Cruz FF, Silva PC, Pannain VLN, Fernandes A, Eulálio JMR, Paiva MM, Macedo-Ramos H, Manso JEF, Baetas-da-Cruz W. Hippocampal Microglia Activation Induced by Acute Pancreatic Injury in Rats. Dig Dis Sci 2024; 69:148-160. [PMID: 37957410 DOI: 10.1007/s10620-023-08167-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Accepted: 10/19/2023] [Indexed: 11/15/2023]
Abstract
BACKGROUND Acute pancreatitis is an inflammation of the pancreatic glandular parenchyma that causes injury with or without the destruction of pancreatic acini. Clinical and experimental evidence suggest that certain systemic proinflammatory mediators may be responsible for initiating the fundamental mechanisms involved in microglial reactivity. Here, we investigated the possible repercussions of acute pancreatitis (AP) on the production of inflammatory mediators in the brain parenchyma focusing on microglial activation in the hippocampus. METHODS The acute pancreatic injury in rats was induced by a pancreas ligation surgical procedure (PLSP) on the splenic lobe, which corresponds to approximately 10% of total mass of the pancreas. Blood samples were collected via intracardiac puncture for the measurement of serum amylase. After euthanasia, frozen or paraffin-embedded brains and pancreas were analyzed using qRT-PCR or immunohistochemistry, respectively. RESULTS Immunohistochemistry assays showed a large number of Iba1 and PU.1-positive cells in the CA1, CA3, and dentate gyrus (DG) regions of the hippocampus of the PLSP group. TNF-α mRNA expression was significantly higher in the brain from PLSP group. NLRP3 inflammasome expression was found to be significantly increased in the pancreas and brain of rats of the PLSP group. High levels of BNDF mRNA were found in the rat brain of PLSP group. In contrast, NGF mRNA levels were significantly higher in the control group versus PLSP group. CONCLUSION Our findings suggest that AP has the potential to induce morphological changes in microglia consistent with an activated phenotype.
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Affiliation(s)
- Tamires Cabral-França
- Postgraduate Program in Surgical Science, Department of Surgery, School of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Department of Surgery, Centre for Experimental Surgery, School of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Translational Laboratory in Molecular Physiology, Department of Surgery, School of Medicine, Centre for Experimental Surgery, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Fernanda Ferreira Cruz
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Paulo Cesar Silva
- Department of Surgery, Centre for Experimental Surgery, School of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Vera Lucia Nunes Pannain
- Postgraduate Program in Surgical Science, Department of Surgery, School of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Department of Pathology, School of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Arlete Fernandes
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Department of Pathology, School of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - José Marcus Raso Eulálio
- Postgraduate Program in Surgical Science, Department of Surgery, School of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Department of Surgery, Centre for Experimental Surgery, School of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Hugo Macedo-Ramos
- Translational Laboratory in Molecular Physiology, Department of Surgery, School of Medicine, Centre for Experimental Surgery, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Jose Eduardo Ferreira Manso
- Postgraduate Program in Surgical Science, Department of Surgery, School of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- Department of Surgery, Centre for Experimental Surgery, School of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Wagner Baetas-da-Cruz
- Postgraduate Program in Surgical Science, Department of Surgery, School of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
- Department of Surgery, Centre for Experimental Surgery, School of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
- Translational Laboratory in Molecular Physiology, Department of Surgery, School of Medicine, Centre for Experimental Surgery, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
- Laboratório Translacional em Fisiologia Molecular, Faculdade de Medicina, Centro de Cirurgia Experimental, Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho 373, CCS, Bloco J, 2º and, Rio de Janeiro, RJ, 21941-902, Brazil.
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Zhang Q, Xiao X, Zheng J, Li M, Yu M, Ping F, Wang T, Wang X. DNA methylation regulates pancreatic gene expression and links maternal high-fat diet to the offspring glucose metabolism. J Nutr Biochem 2024; 123:109490. [PMID: 37865384 DOI: 10.1016/j.jnutbio.2023.109490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 10/13/2023] [Accepted: 10/17/2023] [Indexed: 10/23/2023]
Abstract
Maternal high-fat diet (HFD) is related to an increased risk of glucose metabolism disorders throughout the whole life of offspring. The pancreas is a glucose homeostasis regulator. Accumulating evidence has revealed that maternal HFD affects offspring pancreas structure and function. However, the potential mechanism remains unclear. In this study, the mouse dam was fed with HFD or control diet (CD) during prepregnancy, pregnancy and lactation. The pancreatic insulin secretion function and islet genome methylome of offspring were analyzed. Pancreatic islet specific gene methylation was detected by using MeDIP qPCR. The results showed that body weight, blood glucose after oral glucose loads, fasting serum insulin, and HOMA-IR index values were significantly higher in male 12-week-old offspring from HFD dams than in the offspring from CD dams. Maternal HFD induced insulin secretion defects in male offspring. Compared with that in maternal CD group, methylation of the Abcc8 and Kcnj11 genes was increased in maternal HFD group in male offspring pancreatic islets. Furthermore, the expression levels of Abcc8 and Kcnj11 were downregulated by intrauterine exposure to a maternal HFD. In summary, maternal HFD results in a long-term functional disorder of the pancreas that is involved in insulin secretion-related gene DNA hypermethylation.
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Affiliation(s)
- Qian Zhang
- Key Laboratory of Endocrinology, Ministry of Health, Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Xinhua Xiao
- Key Laboratory of Endocrinology, Ministry of Health, Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.
| | - Jia Zheng
- Key Laboratory of Endocrinology, Ministry of Health, Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Ming Li
- Key Laboratory of Endocrinology, Ministry of Health, Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Miao Yu
- Key Laboratory of Endocrinology, Ministry of Health, Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Fan Ping
- Key Laboratory of Endocrinology, Ministry of Health, Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Tong Wang
- Key Laboratory of Endocrinology, Ministry of Health, Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaojing Wang
- Key Laboratory of Endocrinology, Ministry of Health, Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
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Stolovich-Rain M, Fridlich O, Azulai S, Klochendler A, Anzi S, Magenheim J, Stein I, Mushasha F, Glaser B, Pikarsky E, Ben-Zvi D, Dor Y. Extensive elimination of acinar cells during normal postnatal pancreas growth. Cell Rep 2023; 42:113457. [PMID: 37995187 DOI: 10.1016/j.celrep.2023.113457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 09/01/2023] [Accepted: 11/02/2023] [Indexed: 11/25/2023] Open
Abstract
While programmed cell death plays important roles during morphogenetic stages of development, post-differentiation organ growth is considered an efficient process whereby cell proliferation increases cell number. Here we demonstrate that early postnatal growth of the pancreas unexpectedly involves massive acinar cell elimination. Measurements of cell proliferation and death in the human pancreas in comparison to the actual increase in cell number predict daily elimination of 0.7% of cells, offsetting 88% of cell formation over the first year of life. Using mouse models, we show that death is associated with mitosis, through a failure of dividing cells to generate two viable daughters. In p53-deficient mice, acinar cell death and proliferation are reduced, while organ size is normal, suggesting that p53-dependent developmental apoptosis triggers compensatory proliferation. We propose that excess cell turnover during growth of the pancreas, and presumably other organs, facilitates robustness to perturbations and supports maintenance of tissue architecture.
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Affiliation(s)
- Miri Stolovich-Rain
- Department of Developmental Biology and Cancer Research, The Institute for Medical Research Israel-Canada (IMRIC), The Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Ori Fridlich
- Department of Developmental Biology and Cancer Research, The Institute for Medical Research Israel-Canada (IMRIC), The Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Shira Azulai
- Department of Developmental Biology and Cancer Research, The Institute for Medical Research Israel-Canada (IMRIC), The Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Agnes Klochendler
- Department of Developmental Biology and Cancer Research, The Institute for Medical Research Israel-Canada (IMRIC), The Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Shira Anzi
- Department of Developmental Biology and Cancer Research, The Institute for Medical Research Israel-Canada (IMRIC), The Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Judith Magenheim
- Department of Developmental Biology and Cancer Research, The Institute for Medical Research Israel-Canada (IMRIC), The Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Ilan Stein
- The Concern Foundation Laboratories at The Lautenberg Center for Immunology and Cancer Research, Israel-Canada Medical Research Institute, Faculty of Medicine, The Hebrew University, Jerusalem, Israel; Department of Pathology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Fatima Mushasha
- The Concern Foundation Laboratories at The Lautenberg Center for Immunology and Cancer Research, Israel-Canada Medical Research Institute, Faculty of Medicine, The Hebrew University, Jerusalem, Israel
| | - Benjamin Glaser
- Endocrinology and Metabolism Service, Department of Internal Medicine, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Eli Pikarsky
- The Concern Foundation Laboratories at The Lautenberg Center for Immunology and Cancer Research, Israel-Canada Medical Research Institute, Faculty of Medicine, The Hebrew University, Jerusalem, Israel; Department of Pathology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Danny Ben-Zvi
- Department of Developmental Biology and Cancer Research, The Institute for Medical Research Israel-Canada (IMRIC), The Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Yuval Dor
- Department of Developmental Biology and Cancer Research, The Institute for Medical Research Israel-Canada (IMRIC), The Hebrew University-Hadassah Medical School, Jerusalem, Israel.
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Qian MF, Bevacqua RJ, Coykendall VM, Liu X, Zhao W, Chang CA, Gu X, Dai XQ, MacDonald PE, Kim SK. HNF1α maintains pancreatic α and β cell functions in primary human islets. JCI Insight 2023; 8:e170884. [PMID: 37943614 PMCID: PMC10807710 DOI: 10.1172/jci.insight.170884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 11/08/2023] [Indexed: 11/12/2023] Open
Abstract
HNF1A haploinsufficiency underlies the most common form of human monogenic diabetes (HNF1A-maturity onset diabetes of the young [HNF1A-MODY]), and hypomorphic HNF1A variants confer type 2 diabetes risk. But a lack of experimental systems for interrogating mature human islets has limited our understanding of how the transcription factor HNF1α regulates adult islet function. Here, we combined conditional genetic targeting in human islet cells, RNA-Seq, chromatin mapping with cleavage under targets and release using nuclease (CUT&RUN), and transplantation-based assays to determine HNF1α-regulated mechanisms in adult human pancreatic α and β cells. Short hairpin RNA-mediated (shRNA-mediated) suppression of HNF1A in primary human pseudoislets led to blunted insulin output and dysregulated glucagon secretion after transplantation in mice, recapitulating phenotypes observed in patients with diabetes. These deficits corresponded with altered expression of genes encoding factors critical for hormone secretion, including calcium channel subunits, ATPase transporters, and extracellular matrix constituents. Additionally, HNF1A loss led to upregulation of transcriptional repressors, providing evidence for a mechanism of transcriptional derepression through HNF1α. CUT&RUN mapping of HNF1α DNA binding sites in primary human islets imputed a subset of HNF1α-regulated genes as direct targets. These data elucidate mechanistic links between HNF1A loss and diabetic phenotypes in mature human α and β cells.
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Affiliation(s)
- Mollie F. Qian
- Department of Developmental Biology, Stanford University School of Medicine, Stanford, California, USA
| | - Romina J. Bevacqua
- Department of Developmental Biology, Stanford University School of Medicine, Stanford, California, USA
- Diabetes, Obesity and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Vy M.N. Coykendall
- Department of Developmental Biology, Stanford University School of Medicine, Stanford, California, USA
| | - Xiong Liu
- Department of Pharmacology and
- Alberta Diabetes Institute, University of Alberta, Edmonton, Canada
| | - Weichen Zhao
- Department of Developmental Biology, Stanford University School of Medicine, Stanford, California, USA
| | - Charles A. Chang
- Department of Developmental Biology, Stanford University School of Medicine, Stanford, California, USA
| | - Xueying Gu
- Department of Developmental Biology, Stanford University School of Medicine, Stanford, California, USA
- Stanford Diabetes Research Center
| | - Xiao-Qing Dai
- Department of Pharmacology and
- Alberta Diabetes Institute, University of Alberta, Edmonton, Canada
| | - Patrick E. MacDonald
- Department of Pharmacology and
- Alberta Diabetes Institute, University of Alberta, Edmonton, Canada
| | - Seung K. Kim
- Department of Developmental Biology, Stanford University School of Medicine, Stanford, California, USA
- Stanford Diabetes Research Center
- Departments of Medicine and Pediatrics (Endocrinology), and
- Northern California JDRF Center of Excellence, Stanford University School of Medicine, Stanford, California, USA
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40
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Yi X, Xie Y, Gerber DA. Pancreas patch grafting to treat type 1 diabetes. Biochem Biophys Res Commun 2023; 686:149200. [PMID: 37926045 DOI: 10.1016/j.bbrc.2023.149200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 10/31/2023] [Indexed: 11/07/2023]
Abstract
Stem/progenitor cell therapy is a promising treatment option for patients with type 1 diabetes (T1D) a disease characterized by autoimmune destruction of pancreatic β cells. Actively injecting cells into an organ is one option for cell delivery, but in the pancreas, this contributes to acute inflammation and pancreatitis. We employed a patch grafting approach to transplant biliary tree stem cells/progenitor cells (BTSC) onto the surface of the pancreas in diabetic mice. The cells engraft and differentiate into β-like cells reversing hyperglycemia during a four-month period of observation. In addition, C-peptide and insulin gradually increase in blood circulation without detectable adverse effects during this period. Moreover, the patch graft transplant promoted the proliferation and differentiation of pancreatic β-like cells with co-expression of the β cell biomarker. CONCLUSION: BTSC transplantation can effectively attenuate T1D over a four-month period that is vital important for clinical applications.
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Affiliation(s)
- Xianwen Yi
- Department of Surgery, University of North Carolina, Chapel Hill, NC, 27599, USA.
| | - Youmei Xie
- Department of Surgery, University of North Carolina, Chapel Hill, NC, 27599, USA.
| | - David A Gerber
- Department of Surgery, University of North Carolina, Chapel Hill, NC, 27599, USA; Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, 27599, USA.
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Takahashi K, Mashima H, Sekine M, Uehara T, Asano T, Sun-Wada GH, Wada Y, Ohnishi H. Rab7 localized on zymogen granules is involved in maturation but not in autophagy or regulated exocytosis in pancreatic acinar cells. Sci Rep 2023; 13:22084. [PMID: 38087030 PMCID: PMC10716180 DOI: 10.1038/s41598-023-49520-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 12/08/2023] [Indexed: 12/18/2023] Open
Abstract
Rab7 is known to function in the autophagy and endocytosis pathways in eukaryocytes and is related to various diseases. We recently reported that Rab7 plays a protective role against acute pancreatitis. However, its physiological function in exocytic cells remains unclear. Therefore, we investigated the role of Rab7 in pancreas-specific Rab7 knockout mice (Rab7Δpan). Immunofluorescence microscopy revealed that Rab7 colocalized with amylase in pancreatic acinar cells of wild-type mice, but not in Rab7Δpan mice. Western blotting confirmed Rab7 localization in the zymogen granule (ZG) membranes of wild-type mice. Cholecystokinin (CCK)-stimulated amylase secretion examined using isolated pancreatic acini was similar in Rab7Δpan and wild-type mice. In contrast, electron microscopy revealed that the diameters of ZGs were shorter and the number of ZGs was larger in the pancreatic acinar cells of Rab7Δpan mice than in those of wild-type mice. However, the number of ZGs decreased in both Rab7Δpan and wild-type mice after 24 h of starvation. In addition, the amount of amylase in the pancreas was decreased in both Rab7Δpan and wild-type mice. These data indicate that Rab7 localized on ZGs plays a crucial role in the maturation of ZGs but not in their autophagy or regulated exocytosis in pancreatic acinar cells.
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Affiliation(s)
- Kenichi Takahashi
- Department of Gastroenterology, Akita University Graduate School of Medicine, Akita, Japan
| | - Hirosato Mashima
- Department of Gastroenterology, Jichi Medical University Saitama Medical Center, 1-847 Amanuma-Cho, Omiya-Ku, Saitama, 330-8503, Japan.
| | - Masanari Sekine
- Department of Gastroenterology, Jichi Medical University Saitama Medical Center, 1-847 Amanuma-Cho, Omiya-Ku, Saitama, 330-8503, Japan
| | - Takeshi Uehara
- Department of Gastroenterology, Jichi Medical University Saitama Medical Center, 1-847 Amanuma-Cho, Omiya-Ku, Saitama, 330-8503, Japan
| | - Takeharu Asano
- Department of Gastroenterology, Jichi Medical University Saitama Medical Center, 1-847 Amanuma-Cho, Omiya-Ku, Saitama, 330-8503, Japan
| | - Ge-Hong Sun-Wada
- Department of Biochemistry, Faculty of Pharmaceutical Sciences, Doshisha Women's College, Kyoto, Japan
| | - Yoh Wada
- Division of Biological Science, Institute of Scientific and Industrial Research, Osaka University, Osaka, Japan
| | - Hirohide Ohnishi
- Department of Gastroenterology, Jichi Medical University Saitama Medical Center, 1-847 Amanuma-Cho, Omiya-Ku, Saitama, 330-8503, Japan
- Japan Organization of Occupational Health and Safety, Kawasaki, Kanagawa, Japan
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42
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Liang G, Oh TG, Hah N, Tiriac H, Shi Y, Truitt ML, Antal CE, Atkins AR, Li Y, Fraser C, Ng S, Pinto AFM, Nelson DC, Estepa G, Bashi S, Banayo E, Dai Y, Liddle C, Yu RT, Hunter T, Engle DD, Han H, Von Hoff DD, Downes M, Evans RM. Inhibiting stromal Class I HDACs curbs pancreatic cancer progression. Nat Commun 2023; 14:7791. [PMID: 38057326 PMCID: PMC10700526 DOI: 10.1038/s41467-023-42178-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 09/27/2023] [Indexed: 12/08/2023] Open
Abstract
Oncogenic lesions in pancreatic ductal adenocarcinoma (PDAC) hijack the epigenetic machinery in stromal components to establish a desmoplastic and therapeutic resistant tumor microenvironment (TME). Here we identify Class I histone deacetylases (HDACs) as key epigenetic factors facilitating the induction of pro-desmoplastic and pro-tumorigenic transcriptional programs in pancreatic stromal fibroblasts. Mechanistically, HDAC-mediated changes in chromatin architecture enable the activation of pro-desmoplastic programs directed by serum response factor (SRF) and forkhead box M1 (FOXM1). HDACs also coordinate fibroblast pro-inflammatory programs inducing leukemia inhibitory factor (LIF) expression, supporting paracrine pro-tumorigenic crosstalk. HDAC depletion in cancer-associated fibroblasts (CAFs) and treatment with the HDAC inhibitor entinostat (Ent) in PDAC mouse models reduce stromal activation and curb tumor progression. Notably, HDAC inhibition (HDACi) enriches a lipogenic fibroblast subpopulation, a potential precursor for myofibroblasts in the PDAC stroma. Overall, our study reveals the stromal targeting potential of HDACi, highlighting the utility of this epigenetic modulating approach in PDAC therapeutics.
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Affiliation(s)
- Gaoyang Liang
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Tae Gyu Oh
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
- Department of Oncology Science, OU Health Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73117, USA
| | - Nasun Hah
- Next Generation Sequencing Core, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Hervé Tiriac
- Department of Surgery, University of California San Diego, La Jolla, CA, 92093, USA
| | - Yu Shi
- Molecular and Cell Biology Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
- Bristol Myer Squibb, 10300 Campus Point Drive, Suite 100, San Diego, CA, 92121, USA
| | - Morgan L Truitt
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Corina E Antal
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
- Department of Pharmacology, University of California San Diego, La Jolla, CA, 92093, USA
| | - Annette R Atkins
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Yuwenbin Li
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Cory Fraser
- HonorHealth Scottsdale Osborn Medical Center and Shea Medical Center, Scottsdale, AZ, 85260, USA
| | - Serina Ng
- Molecular Medicine Division, The Translational Genomic Research Institute, Phoenix, AZ, 85004, USA
| | - Antonio F M Pinto
- Mass Spectrometry Core, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Dylan C Nelson
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Gabriela Estepa
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Senada Bashi
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Ester Banayo
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Yang Dai
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Christopher Liddle
- Storr Liver Centre, Westmead Institute for Medical Research and Sydney Medical School, University of Sydney, Westmead Hospital, Westmead, NSW, 2145, Australia
| | - Ruth T Yu
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Tony Hunter
- Molecular and Cell Biology Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Dannielle D Engle
- Regulatory Biology Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Haiyong Han
- Molecular Medicine Division, The Translational Genomic Research Institute, Phoenix, AZ, 85004, USA
| | - Daniel D Von Hoff
- HonorHealth Scottsdale Osborn Medical Center and Shea Medical Center, Scottsdale, AZ, 85260, USA
- Molecular Medicine Division, The Translational Genomic Research Institute, Phoenix, AZ, 85004, USA
| | - Michael Downes
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA.
| | - Ronald M Evans
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA.
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Morisseau L, Tokito F, Poulain S, Plaisance V, Pawlowski V, Kim SH, Legallais C, Jellali R, Sakai Y, Abderrahmani A, Leclerc E. Generation of β-like cell subtypes from differentiated human induced pluripotent stem cells in 3D spheroids. Mol Omics 2023; 19:810-822. [PMID: 37698079 DOI: 10.1039/d3mo00050h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/13/2023]
Abstract
Since the identification of four different pancreatic β-cell subtypes and bi-hormomal cells playing a role in the diabetes pathogenesis, the search for in vitro models that mimics such cells heterogeneity became a key priority in experimental and clinical diabetology. We investigated the potential of human induced pluripotent stem cells to lead to the development of the different β-cells subtypes in honeycomb microwell-based 3D spheroids. The glucose-stimulated insulin secretion confirmed the spheroids functionality. Then, we performed a single cell RNA sequencing of the spheroids. Using a knowledge-based analysis with a stringency on the pancreatic markers, we extracted the β-cells INS+/UCN3+ subtype (11%; β1-like cells), the INS+/ST8SIA1+/CD9- subtype (3%, β3-like cells) and INS+/CD9+/ST8SIA1-subtype (1%; β2-like cells) consistently with literature findings. We did not detect the INS+/ST8SIA1+/CD9+ cells (β4-like cells). Then, we also identified four bi-hormonal cells subpopulations including δ-like cells (INS+/SST+, 6%), γ-like cells (INS+/PPY+, 3%), α-like-cells (INS+/GCG+, 6%) and ε-like-cells (INS+/GHRL+, 2%). Using data-driven clustering, we extracted four progenitors' subpopulations (with the lower level of INS gene) that included one population highly expressing inhibin genes (INHBA+/INHBB+), one population highly expressing KCNJ3+/TPH1+, one population expressing hepatocyte-like lineage markers (HNF1A+/AFP+), and one population expressing stem-like cell pancreatic progenitor markers (SOX2+/NEUROG3+). Furthermore, among the cycling population we found a large number of REST+ cells and CD9+ cells (CD9+/SPARC+/REST+). Our data confirm that our differentiation leads to large β-cell heterogeneity, which can be used for investigating β-cells plasticity under physiological and pathophysiological conditions.
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Affiliation(s)
- Lisa Morisseau
- Biomechanics and Bioengineering UMR 7338, Université de technologie de Compiègne, CNRS, Centre de Recherche Royallieu CS 60319, Compiègne, 60203 Cedex, France
| | - Fumiya Tokito
- Department of Chemical System Engineering, Graduate School of Engineering, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Stéphane Poulain
- Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba; Meguro-ku, Tokyo, 153-8505, Japan
| | - Valerie Plaisance
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520, IEMN, F-59000 Lille, France
| | - Valerie Pawlowski
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520, IEMN, F-59000 Lille, France
| | - Soo Hyeon Kim
- Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba; Meguro-ku, Tokyo, 153-8505, Japan
| | - Cécile Legallais
- Biomechanics and Bioengineering UMR 7338, Université de technologie de Compiègne, CNRS, Centre de Recherche Royallieu CS 60319, Compiègne, 60203 Cedex, France
| | - Rachid Jellali
- Biomechanics and Bioengineering UMR 7338, Université de technologie de Compiègne, CNRS, Centre de Recherche Royallieu CS 60319, Compiègne, 60203 Cedex, France
| | - Yasuyuki Sakai
- Department of Chemical System Engineering, Graduate School of Engineering, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
- Laboratory for Integrated Micro Mechatronic Systems, CNRS/IIS IRL 2820, Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba; Meguro-ku, Tokyo, 153-8505, Japan
| | - Amar Abderrahmani
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520, IEMN, F-59000 Lille, France
| | - Eric Leclerc
- Laboratory for Integrated Micro Mechatronic Systems, CNRS/IIS IRL 2820, Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba; Meguro-ku, Tokyo, 153-8505, Japan
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44
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Narayan G, Sen P, Nagotu S, Thummer RP. Biological activity of recombinant human PDX1 protein produced from Escherichia coli. J Biochem Mol Toxicol 2023; 37:e23511. [PMID: 37632262 DOI: 10.1002/jbt.23511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 08/11/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023]
Abstract
Pancreatic and duodenum homeobox 1 (PDX1) is considered as a pivotal transcription factor that acts as a "master regulator" in pancreatogenesis and maintenance of β-cells. Earlier study has reported that PDX1 also functions as a tumor suppressor in human gastric cancer cells by inhibiting cell growth. Here, we report the bioactivity of the purified human PDX1 fusion protein using various assays like cell migration, proliferation, cell cycle analysis, and gene expression. In cancer cells, recombinant PDX1 protein reduced cell migration and proliferation, and arrested cell growth by inducing apoptosis in gastric cancer cells. In pancreatic ductal cancer cells, the application of the PDX1 protein resulted in the induction of insulin gene expression. The results of these experiments demonstrate the biological activity imparted by recombinant human PDX1 fusion protein on gastric and pancreatic cancer cells and its usefulness as a biological tool to elucidate its function in various cellular processes.
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Affiliation(s)
- Gloria Narayan
- Laboratory for Stem Cell Engineering and Regenerative Medicine, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Plaboni Sen
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Shirisha Nagotu
- Organelle Biology and Cellular Ageing Lab, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Rajkumar P Thummer
- Laboratory for Stem Cell Engineering and Regenerative Medicine, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
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45
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Mehanna S, Arakawa S, Imasaka M, Chen W, Nakanishi Y, Nishiura H, Shimizu S, Ohmuraya M. Beclin1 is essential for the pancreas development. Dev Biol 2023; 504:113-119. [PMID: 37739117 DOI: 10.1016/j.ydbio.2023.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 09/14/2023] [Accepted: 09/18/2023] [Indexed: 09/24/2023]
Abstract
Beclin1 (Becn1) is a multifunctional protein involved in autophagy regulation, membrane trafficking, and tumor suppression. In this study, we examined the roles of Becn1 in the pancreas development by generating mice with conditional deletion of Becn1 in the pancreas using pancreatic transcriptional factor 1a (Ptf1a)-Cre mice (Becn1f/f; Ptf1aCre/+). Surprisingly, loss of Becn1 in the pancreas resulted in severe pancreatic developmental defects, leading to insufficient exocrine and endocrine pancreatic function. Approximately half of Becn1f/f; Ptf1aCre/+ mice died immediately after birth. However, duodenum and neural tissue development were almost normal, indicating that pancreatic insufficiency was the cause of death. These findings demonstrated a novel role for Becn1 in pancreas morphogenesis, differentiation, and growth, and suggested that loss of this factor leaded to pancreatic agenesis at birth.
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Affiliation(s)
- Sally Mehanna
- Institute of Resource Development and Analysis, Kumamoto University, Kumamoto, 860-0811, Japan
| | - Satoko Arakawa
- Department of Pathological Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, Bunkyo, Tokyo, 113-8510, Japan
| | - Mai Imasaka
- Department of Genetics, Hyogo Medical University, Nishinomiya, Hyogo, 663-8501, Japan
| | - Wenting Chen
- Department of Genetics, Hyogo Medical University, Nishinomiya, Hyogo, 663-8501, Japan
| | - Yuto Nakanishi
- Department of Genetics, Hyogo Medical University, Nishinomiya, Hyogo, 663-8501, Japan
| | - Hiroshi Nishiura
- Division of Functional Pathology, Department of Pathology, Hyogo Medical University, Nishinomiya, Hyogo, 663-8501, Japan
| | - Shigeomi Shimizu
- Department of Pathological Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, Bunkyo, Tokyo, 113-8510, Japan
| | - Masaki Ohmuraya
- Department of Genetics, Hyogo Medical University, Nishinomiya, Hyogo, 663-8501, Japan.
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James EA, Joglekar AV, Linnemann AK, Russ HA, Kent SC. The beta cell-immune cell interface in type 1 diabetes (T1D). Mol Metab 2023; 78:101809. [PMID: 37734713 PMCID: PMC10622886 DOI: 10.1016/j.molmet.2023.101809] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 09/01/2023] [Accepted: 09/15/2023] [Indexed: 09/23/2023] Open
Abstract
BACKGROUND T1D is an autoimmune disease in which pancreatic islets of Langerhans are infiltrated by immune cells resulting in the specific destruction of insulin-producing islet beta cells. Our understanding of the factors leading to islet infiltration and the interplay of the immune cells with target beta cells is incomplete, especially in human disease. While murine models of T1D have provided crucial information for both beta cell and autoimmune cell function, the translation of successful therapies in the murine model to human disease has been a challenge. SCOPE OF REVIEW Here, we discuss current state of the art and consider knowledge gaps concerning the interface of the islet beta cell with immune infiltrates, with a focus on T cells. We discuss pancreatic and immune cell phenotypes and their impact on cell function in health and disease, which we deem important to investigate further to attain a more comprehensive understanding of human T1D disease etiology. MAJOR CONCLUSIONS The last years have seen accelerated development of approaches that allow comprehensive study of human T1D. Critically, recent studies have contributed to our revised understanding that the pancreatic beta cell assumes an active role, rather than a passive position, during autoimmune disease progression. The T cell-beta cell interface is a critical axis that dictates beta cell fate and shapes autoimmune responses. This includes the state of the beta cell after processing internal and external cues (e.g., stress, inflammation, genetic risk) that that contributes to the breaking of tolerance by hyperexpression of human leukocyte antigen (HLA) class I with presentation of native and neoepitopes and secretion of chemotactic factors to attract immune cells. We anticipate that emerging insights about the molecular and cellular aspects of disease initiation and progression processes will catalyze the development of novel and innovative intervention points to provide additional therapies to individuals affected by T1D.
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Affiliation(s)
- Eddie A James
- Center for Translational Immunology, Benaroya Research Institute, Seattle, WA, USA
| | - Alok V Joglekar
- Center for Systems Immunology and Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Amelia K Linnemann
- Center for Diabetes and Metabolic Diseases, and Herman B Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Holger A Russ
- Diabetes Institute, University of Florida, Gainesville, FL, USA; Department of Pharmacology and Therapeutics, University of Florida, Gainesville, FL, USA
| | - Sally C Kent
- Diabetes Center of Excellence, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA.
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47
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Mores MG, Fikry EM, El-Gendy AO, Mohamed WR, Badary OA. Probiotics mixture and taurine attenuate L-arginine-induced acute pancreatitis in rats: Impact on transient receptor potential vanilloid-1 (TRPV-1)/IL-33/NF-κB signaling and apoptosis. Tissue Cell 2023; 85:102234. [PMID: 37844391 DOI: 10.1016/j.tice.2023.102234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 10/01/2023] [Accepted: 10/05/2023] [Indexed: 10/18/2023]
Abstract
Acute pancreatitis (AP) is an inflammatory disorder of acinar cells. It may develop into severe chronic pancreatitis with a significant mortality rate. The current study aimed to assess the therapeutic effect of a Lactobacillus (LAB) mixture against rat AP. Six groups were created including control, taurine (300 mg/kg; i.p.) for 7 days, LAB mixture for 7 days, L-arginine (2.5 g/kg; i.p.) 2 doses with 1 h interval on 1st day, L-arginine+taurine, and L-arginine+LAB. Serum amylase and lipase activities were measured. Pancreatic tissue was used for histopathological examination, oxidative stress biomarkers including malondialdehyde (MDA) and reduced glutathione (GSH), and inflammatory biomarkers including myeloperoxidase (MPO) and interleukin (IL)-33 assessment. qRT-PCR was used for transient receptor potential vanilloid-1 (TRPV-1) investigation and Western blot analysis for measuring nuclear factor kappa-B (NF-κBp65) and the apoptosis biomarker; caspase-3. Taurine and LAB reduced lipase and significantly ameliorated induced oxidative stress by normalizing MDA and GSH contents. They counteracted inflammation by reducing MPO, IL-33, NF-κBp65, and TRPV-1. In addition, taurine and LAB counteracted apoptosis as proved by reduced caspase-3 expression. Taken together, these findings indicate that taurine and the use LAB mixture can mitigate AP by L-arginine via influencing TRPV-1/IL-33/NF-κB signaling together with exhibiting potent antioxidant and anti-inflammatory effects.
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Affiliation(s)
- Marvy G Mores
- Pharmacology Department, Egyptian Drug Authority, (previously, National Organization for Drug Control and Research), Giza, Egypt
| | - Ebtehal Mohammad Fikry
- Pharmacology Department, Egyptian Drug Authority, (previously, National Organization for Drug Control and Research), Giza, Egypt
| | - Ahmed O El-Gendy
- Microbiology and Immunology Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
| | - Wafaa R Mohamed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt.
| | - Osama A Badary
- Clinical Pharmacy Department, Faculty of Pharmacy, Misr University for Science and Technology, Cairo, Egypt; Clinical Pharmacy Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt.
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48
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Malsy M, Graf B, Bruendl E, Maier-Stocker C, Bundscherer A. Effect of NFATc2- and Sp1-mediated TNFalpha Regulation on the Proliferation and Migration Behavior of Pancreatic Cancer Cells. Cancer Genomics Proteomics 2023; 20:706-711. [PMID: 38035702 PMCID: PMC10687727 DOI: 10.21873/cgp.20417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/19/2023] [Accepted: 09/20/2023] [Indexed: 12/02/2023] Open
Abstract
BACKGROUND/AIM One in two people will develop a tumor during their lifetime. Adenocarcinoma of the pancreas is one of the most aggressive types of cancer in humans with very poor long-term survival. A central role in the carcinogenesis of pancreatic cancer has been attributed to NFAT transcription factors. Previous studies have identified the transcription factor Sp1 as a binding partner of NFATc2 in pancreatic cancer. Using expression profile analysis, our group was able to identify the tumor necrosis factor TNFalpha as a target gene of the interaction between NFATc2 and Sp1. The present study investigated the effect of TNFalpha over-expression via the transcription factors NFATc2 and Sp1 on the pancreatic cancer cell lines PaTu 8988t and PANC-1. MATERIALS AND METHODS Transient transfection of NFATc2, Sp1, and TNFalpha siRNAs and their effects on the expression were investigated with immunoblot. Cell proliferation was measured with the ELISA BrdU assay. Cell migration was assayed with a Cell Migration Assay Kit using a Boyden chamber. RESULTS Inhibition of the transfection factors NFATc2, Sp1, or TNFalpha by siRNA significantly inhibited proliferation, which was exacerbated when using the combination of NFATc2 and Sp1. TNFalpha was able to counterbalance this effect. In contrast to proliferation, migration of pancreatic cancer cells was increased by inhibiting these transfection factors. CONCLUSION Tumor progression is strongly influenced by transcriptional changes in signaling cascades and oncogene mutations as well as by changes in tumor suppressor genes. Further studies are needed to understand the underlying mechanisms of these processes.
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Affiliation(s)
- Manuela Malsy
- Department of Anesthesiology, University Medical Center, Regensburg, Germany;
| | - Bernhard Graf
- Department of Anesthesiology, University Medical Center, Regensburg, Germany
| | - Elisabeth Bruendl
- Department of Neurosurgery, University Medical Center, Regensburg, Germany
| | | | - Anika Bundscherer
- Department of Anesthesiology, University Medical Center, Regensburg, Germany
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Matsuda T, Himeno N, Nakashima A, Nakagawa N, Kohashi T, Kawamori D, Kamei N. Different post-pancreatectomy glucagon responses to a meal test between surgical approaches. Endocr J 2023; 70:1077-1085. [PMID: 37704414 DOI: 10.1507/endocrj.ej23-0032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/15/2023] Open
Abstract
Residual pancreatic endocrine function is important for maintaining metabolic status after pancreatectomy and is closely related to patient nutritional status and prognosis. In contrast to insulin secretion, the significance of glucagon secretion following pancreatectomy remains unclear. In this study, we assessed the changes in pancreatic glucagon secretion during pancreatectomy to determine their pathophysiological significance. We evaluated glucagon and insulin secretion using a liquid meal tolerance test before and after pancreatectomy in patients scheduled to undergo pancreaticoduodenectomy (PD) or distal pancreatectomy (DP). After pancreatectomy, fasting plasma glucagon levels were significantly decreased in both the PD (n = 10) and DP (n = 5) groups (PD: from 18.4 to 10.5 pg/mL, p = 0.037; DP: from 21.0 to 12.1 pg/mL, p = 0.043), whereas postprandial plasma glucagon levels were not changed. In the liquid meal tolerance test after pancreatectomy, 60-min plasma glucagon levels and the area under the curve (AUC) for 0-120 min of PD were significantly higher than those for DP (60-min plasma glucagon: PD 49.0 vs. DP 21.7 pg/mL, p = 0.040; AUC0-120min: PD 4,749 vs. DP 3,564 μg min/mL, p = 0.028). Postoperative plasma glucose, serum insulin, and serum C-peptide levels during the liquid meal tolerance test were not significantly different between the two groups. Although fasting plasma glucagon levels decreased, postprandial glucagon responses were maintained after both PD and DP. The difference in residual meal-stimulated glucagon response between PD and DP suggests that a relative excess of postprandial glucagon is involved in the postoperative nutritional status after PD through its impact on systemic metabolic status.
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Affiliation(s)
- Tsuguka Matsuda
- Department of Endocrinology and Diabetic Medicine, Hiroshima University Hospital, Hiroshima 734-8551, Japan
- Department of Endocrinology and Diabetology, Hiroshima City North Medical Center Asa Citizens Hospital, Hiroshima 731-0293, Japan
| | - Natsumi Himeno
- Department of Endocrinology and Diabetic Medicine, Hiroshima University Hospital, Hiroshima 734-8551, Japan
- Department of Endocrinology and Diabetology, Hiroshima City North Medical Center Asa Citizens Hospital, Hiroshima 731-0293, Japan
| | - Akira Nakashima
- Department of Surgery, Kure Kyosai Hospital, Hiroshima 737-8505, Japan
| | - Naoya Nakagawa
- Department of Surgery, Hiroshima City North Medical Center Asa Citizens Hospital, Hiroshima 731-0293, Japan
| | - Toshihiko Kohashi
- Department of Surgery, Hiroshima City North Medical Center Asa Citizens Hospital, Hiroshima 731-0293, Japan
| | - Dan Kawamori
- Department of Metabolic Medicine, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan
| | - Nozomu Kamei
- Department of Endocrinology and Metabolism, Hiroshima Red Cross Hospital and Atomic Bomb Survivors Hospital, Hiroshima 730-8619, Japan
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50
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Malik SS, Padmanabhan D, Hull-Meichle RL. Pancreas and islet morphology in cystic fibrosis: clues to the etiology of cystic fibrosis-related diabetes. Front Endocrinol (Lausanne) 2023; 14:1269139. [PMID: 38075070 PMCID: PMC10704027 DOI: 10.3389/fendo.2023.1269139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 10/03/2023] [Indexed: 12/18/2023] Open
Abstract
Cystic fibrosis (CF) is a multi-organ disease caused by loss-of-function mutations in CFTR (which encodes the CF transmembrane conductance regulator ion channel). Cystic fibrosis related diabetes (CFRD) occurs in 40-50% of adults with CF and is associated with significantly increased morbidity and mortality. CFRD arises from insufficient insulin release from β cells in the pancreatic islet, but the mechanisms underlying the loss of β cell function remain understudied. Widespread pathological changes in the CF pancreas provide clues to these mechanisms. The exocrine pancreas is the epicenter of pancreas pathology in CF, with ductal pathology being the initiating event. Loss of CFTR function results in ductal plugging and subsequent obliteration. This in turn leads to destruction of acinar cells, fibrosis and fatty replacement. Despite this adverse environment, islets remain relatively well preserved. However, islet composition and arrangement are abnormal, including a modest decrease in β cells and an increase in α, δ and γ cell abundance. The small amount of available data suggest that substantial loss of pancreatic/islet microvasculature, autonomic nerve fibers and intra-islet macrophages occur. Conversely, T-cell infiltration is increased and, in CFRD, islet amyloid deposition is a frequent occurrence. Together, these pathological changes clearly demonstrate that CF is a disease of the pancreas/islet microenvironment. Any or all of these changes are likely to have a dramatic effect on the β cell, which relies on positive signals from all of these neighboring cell types for its normal function and survival. A thorough characterization of the CF pancreas microenvironment is needed to develop better therapies to treat, and ultimately prevent CFRD.
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Affiliation(s)
- Sarah S. Malik
- Department of Pharmacology, University of Washington, Seattle, WA, United States
- Research Service, Veterans Affairs Puget Sound Health Care System, Seattle, WA, United States
| | - Diksha Padmanabhan
- Research Service, Veterans Affairs Puget Sound Health Care System, Seattle, WA, United States
- Seattle Institute for Biomedical and Clinical Research, Seattle, WA, United States
| | - Rebecca L. Hull-Meichle
- Department of Pharmacology, University of Washington, Seattle, WA, United States
- Research Service, Veterans Affairs Puget Sound Health Care System, Seattle, WA, United States
- Seattle Institute for Biomedical and Clinical Research, Seattle, WA, United States
- Division of Metabolism, Endocrinology, and Nutrition, Department of Medicine, University of Washington, Seattle, WA, United States
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