1
|
Peng C, Tu G, Wang J, Wang Y, Wu P, Yu L, Li Z, Yu X. MLKL signaling regulates macrophage polarization in acute pancreatitis through CXCL10. Cell Death Dis 2023; 14:155. [PMID: 36828808 PMCID: PMC9958014 DOI: 10.1038/s41419-023-05655-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 01/30/2023] [Accepted: 02/03/2023] [Indexed: 02/26/2023]
Abstract
Acute pancreatitis (AP) is a disease characterized by local and systemic inflammation with an increasing incidence worldwide. Receptor-interacting serine/threonine protein kinase 3 (RIPK3), mixed-lineage kinase domain-like protein (MLKL), and innate immune cell macrophages have been reported to be involved in the pathogenesis of AP. However, the mechanisms by which RIPK3 and MLKL regulate pancreatic injury, as well as the interactions between injured pancreatic acinar cells and infiltrating macrophages in AP, remain poorly defined. In the present study, experimental pancreatitis was induced in C57BL/6J, Ripk3-/- and Mlkl-/- mice by cerulein plus lipopolysaccharide in vivo, and primary pancreatic acinar cells were also isolated to uncover cellular mechanisms during cerulein stimulation in vitro. The results showed that MLKL and its phosphorylated protein p-MLKL were upregulated in the pancreas of the mouse AP model and cerulein-treated pancreatic acinar cells, independent of its canonical upstream molecule Ripk3, and appeared to function in a cell death-independent manner. Knockout of Mlkl attenuated AP in mice by reducing the polarization of pancreatic macrophages toward the M1 phenotype, and this protective effect was partly achieved by reducing the secretion of CXCL10 from pancreatic acinar cells, whereas knockout of Ripk3 did not. In vitro neutralization of CXCL10 impaired the pro-M1 ability of the conditioned medium of cerulein-treated pancreatic acinar cells, whereas in vivo neutralization of CXCL10 reduced the polarization of pancreatic macrophages toward M1 and the severity of AP in mice. These findings suggested that targeting the MLKL-CXCL10-macrophage axis might be a promising strategy for the treatment of AP.
Collapse
Affiliation(s)
- Cheng Peng
- Department of Hepatopancreatobiliary Surgery, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China
| | - Guangping Tu
- Department of Hepatopancreatobiliary Surgery, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China
| | - Jiale Wang
- Department of Hepatopancreatobiliary Surgery, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China
| | - Yilin Wang
- Department of Hepatopancreatobiliary Surgery, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China
| | - Peng Wu
- Department of Hepatopancreatobiliary Surgery, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China
| | - Li Yu
- Department of Radiology, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China
| | - Zhiqiang Li
- Department of Hepatopancreatobiliary Surgery, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China.
| | - Xiao Yu
- Department of Hepatopancreatobiliary Surgery, Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China.
| |
Collapse
|
2
|
Chakraborty A, Halder B, Mondal S, Barrett A, Zhi W, Csanyi G, Sabbatini ME. NADPH oxidase 1 in chronic pancreatitis-activated pancreatic stellate cells facilitates the progression of pancreatic cancer. Am J Cancer Res 2023; 13:118-142. [PMID: 36777508 PMCID: PMC9906081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 11/12/2022] [Indexed: 02/14/2023] Open
Abstract
Patients suffering from chronic pancreatitis (CP) have a higher risk of pancreatic ductal adenocarcinoma (PDAC) compared to the general population. For instance, the presence of an activated pancreatic stellate cell (PaSC)-rich stroma in CP has facilitated the progression of non-invasive pancreatic intraepithelial neoplasia (PanIN) lesions to invasive PDAC. We have previously found that in a mouse model of CP, NADPH oxidase 1 (Nox1) in activated PaSCs forms fibrotic tissue and up-regulates both matrix metalloproteinase (MMP) 9 and the transcription factor Twist1. Yet, the role and mechanism of Nox1 in activated PaSCs from mice with CP (CP-activated PaSCs) in the progression of PDAC is unknown. For that, we tested the ability of Nox1 in CP-activated PaSCs to facilitate the growth of pancreatic cancer cells, and the mechanisms involved in these effects by identifying proteins in the secretome of CP-activated PaSCs whose production were Nox1-dependent. We found that, in vitro, Nox1 evoked a pro-invasive and cancer-promoting phenotype in CP-activated PaSCs via Twist1/MMP-9 expression, causing changes in the extracellular matrix composition. In vivo, Nox1 in CP-activated PaSCs facilitated tumor growth and stromal expansion. Using mass spectrometry, we identified proteins protecting from endoplasmic reticulum, oxidative and metabolic stresses in the secretome of CP-activated PaSCs whose production was Nox1-dependent, including peroxiredoxins (Prdx1 and Prdx4), and thioredoxin reductase 1. In conclusion, inhibiting the Nox1 signaling in activated PaSCs from patients with CP at early stages can reduce the reorganization of extracellular matrix, and the protection of neoplastic cells from cellular stresses, ameliorating the progression of PDAC.
Collapse
Affiliation(s)
- Ananya Chakraborty
- Department of Biological Sciences, Augusta UniversityAugusta, Georgia, USA
| | - Bithika Halder
- Department of Biological Sciences, Augusta UniversityAugusta, Georgia, USA
| | - Souravi Mondal
- Department of Biological Sciences, Augusta UniversityAugusta, Georgia, USA
| | - Amanda Barrett
- Department of Surgical Pathology, Medical College of Georgia, Augusta UniversityAugusta, Georgia, USA
| | - Wenbo Zhi
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta UniversityAugusta, Georgia, USA
| | - Gabor Csanyi
- Department of Pharmacology and Toxicology, and Vascular Biology Center, Medical College of Georgia, Augusta UniversityAugusta, Georgia, USA
| | - Maria E Sabbatini
- Department of Biological Sciences, Augusta UniversityAugusta, Georgia, USA
| |
Collapse
|
3
|
Xia D, Halder B, Godoy C, Chakraborty A, Singla B, Thomas E, Shuja JB, Kashif H, Miller L, Csanyi G, Sabbatini ME. NADPH oxidase 1 mediates caerulein-induced pancreatic fibrosis in chronic pancreatitis. Free Radic Biol Med 2020; 147:139-149. [PMID: 31837426 PMCID: PMC7227077 DOI: 10.1016/j.freeradbiomed.2019.11.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Accepted: 11/27/2019] [Indexed: 02/07/2023]
Abstract
Inflammatory disorders of the pancreas are divided into acute (AP) and chronic (CP) forms. Both states of pancreatitis are a result of pro-inflammatory mediators, including reactive oxygen species (ROS). One of the sources of ROS is NADPH oxidase (Nox). The rodent genome encodes Nox1-4, Duox1 and Duox2. Our purpose was to assess the extent to which Nox enzymes contribute to the pathogenesis of both AP and CP using Nox-deficient mice. Using RT-PCR, Nox1 was found in both isolated mouse pancreatic acini and pancreatic stellate cells (PaSCs). Subsequently, mice with genetically deleted Nox1 were further studied and showed that the histo-morphologic characteristics of caerulein-induced CP, but not caerulein-induced AP, was ameliorated in Nox1 KO mice. We also found that the lack of Nox1 impaired caerulein-induced ROS generation in PaSCs. Using Western blotting, we found that AKT mediates the fibrotic effect of Nox1 in a mouse model of CP. We also found a decrease in phospho-ERK and p38MAPK levels in Nox1 KO mice with CP, but not with AP. Both CP-induced TGF-β up-regulation and NF-ĸB activation were impaired in pancreas from Nox1 KO mice. Western blotting indicated increases in proteins involved in fibrosis and acinar-to-ductal metaplasia in WT mice with CP. No change in those proteins were observed in Nox1 KO mice. The lack of Nox1 lowered mRNA levels of CP-induced matrix metalloproteinase MMP-9 and E-cadherin repressor Twist in PaSCs. CONCLUSION: Nox1-derived ROS in PaSCs mediate the fibrotic process of CP by activating the downstream redox-sensitive signaling pathways AKT and NF-ĸB, up-regulating MMP-9 and Twist, and producing α-smooth muscle actin and collagen I and III.
Collapse
Affiliation(s)
- Di Xia
- Department of Biological Sciences, Augusta University, Augusta, GA, USA
| | - Bithika Halder
- Department of Biological Sciences, Augusta University, Augusta, GA, USA
| | - Catalina Godoy
- Department of Biological Sciences, Augusta University, Augusta, GA, USA
| | | | - Bhupesh Singla
- Vascular Biology Center, Augusta University, Augusta, GA, USA
| | - Eyana Thomas
- Department of Biological Sciences, Augusta University, Augusta, GA, USA
| | - Jasim B Shuja
- Department of Biological Sciences, Augusta University, Augusta, GA, USA
| | - Hisham Kashif
- Department of Biological Sciences, Augusta University, Augusta, GA, USA
| | - Laurence Miller
- Department of Psychological Sciences, Augusta University, Augusta, GA, USA
| | - Gabor Csanyi
- Vascular Biology Center, Augusta University, Augusta, GA, USA; Department of Pharmacology and Toxicology, Augusta University, Augusta, GA, USA
| | - Maria E Sabbatini
- Department of Biological Sciences, Augusta University, Augusta, GA, USA.
| |
Collapse
|
4
|
Williams JA. Cholecystokinin (CCK) Regulation of Pancreatic Acinar Cells: Physiological Actions and Signal Transduction Mechanisms. Compr Physiol 2019; 9:535-564. [PMID: 30873601 DOI: 10.1002/cphy.c180014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Pancreatic acinar cells synthesize and secrete about 20 digestive enzymes and ancillary proteins with the processes that match the supply of these enzymes to their need in digestion being regulated by a number of hormones (CCK, secretin and insulin), neurotransmitters (acetylcholine and VIP) and growth factors (EGF and IGF). Of these regulators, one of the most important and best studied is the gastrointestinal hormone, cholecystokinin (CCK). Furthermore, the acinar cell has become a model for seven transmembrane, heterotrimeric G protein coupled receptors to regulate multiple processes by distinct signal transduction cascades. In this review, we briefly describe the chemistry and physiology of CCK and then consider the major physiological effects of CCK on pancreatic acinar cells. The majority of the review is devoted to the physiologic signaling pathways activated by CCK receptors and heterotrimeric G proteins and the functions they affect. The pathways covered include the traditional second messenger pathways PLC-IP3-Ca2+ , DAG-PKC, and AC-cAMP-PKA/EPAC that primarily relate to secretion. Then there are the protein-protein interaction pathways Akt-mTOR-S6K, the three major MAPK pathways (ERK, JNK, and p38 MAPK), and Ca2+ -calcineurin-NFAT pathways that primarily regulate non-secretory processes including biosynthesis and growth, and several miscellaneous pathways that include the Rho family small G proteins, PKD, FAK, and Src that may regulate both secretory and nonsecretory processes but are not as well understood. © 2019 American Physiological Society. Compr Physiol 9:535-564, 2019.
Collapse
Affiliation(s)
- John A Williams
- University of Michigan, Departments of Molecular & Integrative Physiology and Internal Medicine (Gastroenterology), Ann Arbor, Michigan, USA
| |
Collapse
|
5
|
Hou Y, Ernst SA, Lentz SI, Williams JA. Genetic deletion of Rab27B in pancreatic acinar cells affects granules size and has inhibitory effects on amylase secretion. Biochem Biophys Res Commun 2016; 471:610-5. [PMID: 26845357 DOI: 10.1016/j.bbrc.2016.01.180] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 01/29/2016] [Indexed: 11/26/2022]
Abstract
Small G protein Rab27B is expressed in various secretory cell types and plays a role in mediating secretion. In pancreatic acinar cells, Rab27B was found to be expressed on the zymogen granule membrane and by overexpression to regulate the secretion of zymogen granules. However, the effect of Rab27B deletion on the physiology of pancreatic acinar cells is unknown. In the current study, we utilized the Rab27B KO mouse model to better understand the role of Rab27B in the secretion of pancreatic acinar cells. Our data show that Rab27B deficiency had no obvious effects on the expression of major digestive enzymes and other closely related proteins, e.g. similar small G proteins, such as Rab3D and Rab27A, and putative downstream effectors. The overall morphology of acinar cells was not changed in the knockout pancreas. However, the size of zymogen granules was decreased in KO acinar cells, suggesting a role of Rab27B in regulating the maturation of secretory granules. The secretion of digestive enzymes was moderately decreased in KO acini, compared with the WT control. These data indicate that Rab27B is involved at a different steps of zymogen granule maturation and secretion, which is distinct from that of Rab3D.
Collapse
Affiliation(s)
- Yanan Hou
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Stephen A Ernst
- Cell and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Stephen I Lentz
- Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - John A Williams
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI 48109, USA; Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA.
| |
Collapse
|
6
|
Hou Y, Ernst SA, Heidenreich K, Williams JA. Glucagon-like peptide-1 receptor is present in pancreatic acinar cells and regulates amylase secretion through cAMP. Am J Physiol Gastrointest Liver Physiol 2016; 310:G26-33. [PMID: 26542397 PMCID: PMC4698438 DOI: 10.1152/ajpgi.00293.2015] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 10/27/2015] [Indexed: 01/31/2023]
Abstract
Glucagon-like peptide-1 (GLP-1) is a glucoincretin hormone that can act through its receptor (GLP-1R) on pancreatic β-cells and increase insulin secretion and production. GLP-1R agonists are used clinically to treat type 2 diabetes. GLP-1 may also regulate the exocrine pancreas at multiple levels, including inhibition through the central nervous system, stimulation indirectly through insulin, and stimulation directly on acinar cells. However, it has been unclear whether GLP-1R is present in pancreatic acini and what physiological functions these receptors regulate. In the current study we utilized GLP-1R knockout (KO) mice to study the role of GLP-1R in acinar cells. RNA expression of GLP-1R was detected in acutely isolated pancreatic acini. Acinar cell morphology and expression of digestive enzymes were not affected by loss of GLP-1R. GLP-1 induced amylase secretion in wild-type (WT) acini. In GLP-1R KO mice, this effect was abolished, whereas vasoactive intestinal peptide-induced amylase release in KO acini showed a pattern similar to that in WT acini. GLP-1 stimulated cAMP production and increased protein kinase A-mediated protein phosphorylation in WT acini, and these effects were absent in KO acini. These data show that GLP-1R is present in pancreatic acinar cells and that GLP-1 can regulate secretion through its receptor and cAMP signaling pathway.
Collapse
Affiliation(s)
- Yanan Hou
- 1Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan;
| | - Stephen A. Ernst
- 2Department of Cell and Developmental Biology, University of Michigan, Ann Arbor, Michigan; and
| | - Kaeli Heidenreich
- 1Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan;
| | - John A. Williams
- 1Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan; ,3Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
| |
Collapse
|
7
|
Huang Z, Wang TS, Qi QR, Zuo RJ, Liang XH, Zhao XY, Yang ZM. Progesterone regulates secretin expression in mouse uterus during early pregnancy. Reprod Sci 2013; 21:724-32. [PMID: 24336673 DOI: 10.1177/1933719113512527] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Secretin, a classical gastrointestinal and neuroendocrine peptide, plays an important role in maintaining the body fluid balance. However, the expression and regulation of secretin in the reproductive system are still unknown. In our study, secretin is specifically expressed in the decidua on days 5 to 8 of pregnancy. Secretin expression is not detected under delayed implantation but is stimulated after estrogen activation and under artificial decidualization. Progesterone induces secretin expression in ovariectomized mice and cultured stromal cells, which is abrogated by specific LY294002. Because secretin is mainly localized in the decidua and also strongly expressed during in vitro decidualization, secretin may play a role during mouse decidualization through regulating cyclic adenosine monophosphate level.
Collapse
Affiliation(s)
- Zhu Huang
- 1School of Life Science, Xiamen University, Xiamen, China
| | | | | | | | | | | | | |
Collapse
|
8
|
Sabbatini ME, D'Alecy L, Lentz SI, Tang T, Williams JA. Adenylyl cyclase 6 mediates the action of cyclic AMP-dependent secretagogues in mouse pancreatic exocrine cells via protein kinase A pathway activation. J Physiol 2013; 591:3693-707. [PMID: 23753526 DOI: 10.1113/jphysiol.2012.249698] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Both secretin and vasoactive intestinal polypeptide (VIP) receptors are responsible for the activation of adenylyl cyclases (ACs), which increase intracellular cyclic AMP (cAMP) levels in the exocrine pancreas. There are nine membrane-associated isoforms, each with its own pattern of expression and regulation. In this study we sought to establish which AC isoforms play a regulatory role in pancreatic exocrine cells. Using RT-PCR, AC3, AC4, AC6, AC7 and AC9 were found to be expressed in the pancreas. AC3, AC4, AC6 and AC9 were expressed in both pancreatic acini and ducts, whereas AC7 was expressed only in pancreatic ducts. Based on known regulation by intracellular signals, selective inhibitors and stimulators were used to suggest which isoforms play an important role in the induction of cAMP formation. AC6 appeared to be an important isoform because protein kinase A (PKA), PKC and calcium all inhibited VIP-induced cAMP formation, whereas calcineurin or calmodulin did not modify the response to VIP. Mice with genetically deleted AC6 were studied and showed reduced cAMP formation and PKA activation in both isolated pancreatic acini and duct fragments. The absence of AC6 reduced cAMP-dependent secretagogue-stimulated amylase secretion, and abolished fluid secretion in both in vivo and isolated duct fragments. In conclusion, several AC isoforms are expressed in pancreatic acini and ducts. AC6 mediates a significant part of pancreatic amylase and fluid secretion in response to secretin, VIP and forskolin through cAMP/PKA pathway activation.
Collapse
Affiliation(s)
- Maria E Sabbatini
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI, USA.
| | | | | | | | | |
Collapse
|
9
|
Current world literature. Curr Opin Endocrinol Diabetes Obes 2013; 20:74-9. [PMID: 23247096 DOI: 10.1097/med.0b013e32835cb529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|