1
|
Fu Z, Wang D, Zheng C, Xie M, Chen Y, Zhou Y, Huang Y, Song Y, Hong W. Elimination of intracellular Ca 2+ overload by BAPTA‑AM liposome nanoparticles: A promising treatment for acute pancreatitis. Int J Mol Med 2024; 53:34. [PMID: 38390952 PMCID: PMC10903929 DOI: 10.3892/ijmm.2024.5358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 01/18/2024] [Indexed: 02/24/2024] Open
Abstract
Calcium overload, a notable instigator of acute pancreatitis (AP), induces oxidative stress and an inflammatory cascade, subsequently activating both endogenous and exogenous apoptotic pathways. However, there is currently lack of available pharmaceutical interventions to alleviate AP by addressing calcium overload. In the present study, the potential clinical application of liposome nanoparticles (LNs) loaded with 1,2‑bis(2‑aminophenoxy)ethane‑N,N,N',N'‑tetraacetic acid tetrakis (acetoxymethyl ester) (BAPTA‑AM), a cell‑permeant calcium chelator, was investigated as a therapeutic approach for the management of AP. To establish the experimental models in vitro, AR42J cells were exposed to high glucose/sodium oleate (HGO) to induce necrosis, and in vivo, intra‑ductal taurocholate (TC) infusion was used to induce AP. The findings of the present study indicated that the use of BAPTA‑AM‑loaded LN (BLN) effectively and rapidly eliminated excessive Ca2+ and reactive oxygen species, suppressed mononuclear macrophage activation and the release of inflammatory cytokines, and mitigated pancreatic acinar cell apoptosis and necrosis induced by HGO. Furthermore, the systemic administration of BLN demonstrated promising therapeutic potential in the rat model of AP. Notably, BLN significantly enhanced the survival rates of rats subjected to the TC challenge, increasing from 37.5 to 75%. This improvement was attributed to the restoration of pancreatic function, as indicated by improved blood biochemistry indices and alleviation of pancreatic lesions. The potential therapeutic efficacy of BLN in rescuing patients with AP is likely attributed to its capacity to inhibit oxidative stress, prevent premature activation of zymogens and downregulate the expression of TNF‑α, IL‑6 and cathepsin B. Thus, BLN demonstrated promising value as a novel therapeutic approach for promptly alleviating the burden of intracellular Ca2+ overload in patients with AP.
Collapse
Affiliation(s)
- Zailin Fu
- Department of Pharmacy, Linping Branch, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang 310000, P.R. China
- Department of Pharmacology, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, Zhejiang 310000, P.R. China
| | - Dingsheng Wang
- Department of Pharmacy, Linping Branch, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang 310000, P.R. China
| | - Caiyun Zheng
- Department of Pharmacology, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, Zhejiang 310000, P.R. China
| | - Minghua Xie
- Department of Pharmacy, Linping Branch, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang 310000, P.R. China
| | - Yifang Chen
- Department of Pharmacy, Linping Branch, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang 310000, P.R. China
| | - Yi Zhou
- Department of Pharmacy, Linping Branch, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang 310000, P.R. China
| | - Yan Huang
- Department of Pharmacy, Linping Branch, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang 310000, P.R. China
| | - Ying Song
- Department of Pharmacology, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, Zhejiang 310000, P.R. China
| | - Weiyong Hong
- Department of Pharmacy, Municipal Hospital Affiliated to Taizhou University, Taizhou, Zhejiang 318000, P.R. China
| |
Collapse
|
2
|
Physiological Overview of the Potential Link between the UPS and Ca2+ Signaling. Antioxidants (Basel) 2022; 11:antiox11050997. [PMID: 35624861 PMCID: PMC9137615 DOI: 10.3390/antiox11050997] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 05/10/2022] [Accepted: 05/17/2022] [Indexed: 02/04/2023] Open
Abstract
The ubiquitin–proteasome system (UPS) is the main proteolytic pathway by which damaged target proteins are degraded after ubiquitination and the recruit of ubiquitinated proteins, thus regulating diverse physiological functions and the maintenance in various tissues and cells. Ca2+ signaling is raised by oxidative or ER stress. Although the basic function of the UPS has been extensively elucidated and has been continued to define its mechanism, the precise relationship between the UPS and Ca2+ signaling remains unclear. In the present review, we describe the relationship between the UPS and Ca2+ signaling, including Ca2+-associated proteins, to understand the end point of oxidative stress. The UPS modulates Ca2+ signaling via the degradation of Ca2+-related proteins, including Ca2+ channels and transporters. Conversely, the modulation of UPS is driven by increases in the intracellular Ca2+ concentration. The multifaceted relationship between the UPS and Ca2+ plays critical roles in different tissue systems. Thus, we highlight the potential crosstalk between the UPS and Ca2+ signaling by providing an overview of the UPS in different organ systems and illuminating the relationship between the UPS and autophagy.
Collapse
|
3
|
ATG7-enhanced impaired autophagy exacerbates acute pancreatitis by promoting regulated necrosis via the miR-30b-5p/CAMKII pathway. Cell Death Dis 2022; 13:211. [PMID: 35256590 PMCID: PMC8901675 DOI: 10.1038/s41419-022-04657-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 02/03/2022] [Accepted: 02/16/2022] [Indexed: 01/18/2023]
Abstract
The present study was performed to explore whether and how impaired autophagy could modulate calcium/calmodulin-dependent protein kinase II (CAMKII)-regulated necrosis in the pathogenesis of acute pancreatitis (AP). Wistar rats and AR42J cells were used for AP modeling. When indicated, genetic regulation of CAMKII or ATG7 was performed prior to AP induction. AP-related necrotic injury was positively regulated by the incubation level of CAMKII. ATG7 positively modulated the level of CAMKII and necrosis following AP induction, indicating that there might be a connection between impaired autophagy and CAMKII-regulated necrosis in the pathogenesis of AP. microRNA (miR)-30b-5p was predicted and then verified as the upstream regulator of CAMKII mRNA in our setting of AP. Given that the level of miR-30b-5p was negatively correlated with the incubation levels of ATG7 after AP induction, a rescue experiment was performed and indicated that the miR-30b-5p mimic compromised ATG7 overexpression-induced upregulation of CAMKII-regulated necrosis after AP induction. In conclusion, our results indicate that ATG7-enhanced impaired autophagy exacerbates AP by promoting regulated necrosis via the miR-30b-5p/CAMKII pathway.
Collapse
|