1
|
Tran L, Xie B, Assaf E, Ferrari R, Pipinos II, Casale GP, Alvidrez RIM, Watkins S, Sachdev U. Transcriptomic Profiling Identifies Ferroptosis-Related Gene Signatures in Ischemic Muscle Satellite Cells Affected by Peripheral Artery Disease-Brief Report. Arterioscler Thromb Vasc Biol 2023; 43:2023-2029. [PMID: 37675635 PMCID: PMC10549760 DOI: 10.1161/atvbaha.123.319518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 08/01/2023] [Indexed: 09/08/2023]
Abstract
BACKGROUND We hypothesized that transcriptomic profiling of muscle satellite cells in peripheral artery disease (PAD) would identify damage-related pathways contributing to skeletal muscle myopathy. We identified a potential role for ferroptosis-a form of programmed lytic cell death by iron-mediated lipid peroxidation-as one such pathway. Ferroptosis promotes myopathy in ischemic cardiac muscle but has an unknown role in PAD. METHODS Muscle satellite cells from donors with PAD were obtained during surgery. cDNA libraries were processed for single-cell RNA sequencing using the 10X Genomics platform. Protein expression was confirmed based on pathways inferred by transcriptomic analysis. RESULTS Unsupervised cluster analysis of over 25 000 cells aggregated from 8 donor samples yielded distinct cell populations grouped by a shared unique transcriptional fingerprint. Quiescent cells were diminished in ischemic muscle while myofibroblasts and apoptotic cells were prominent. Differential gene expression demonstrated a surprising increase in genes associated with iron transport and oxidative stress and a decrease in GPX4 (glutathione peroxidase 4) in ischemic PAD-derived cells. Release of the danger signal HMGB1 (high mobility group box-1) correlated with ferroptotic markers including surface transferrin receptor and were higher in ischemia. Furthermore, lipid peroxidation in muscle satellite cells was modulated by ferrostatin, a ferroptosis inhibitor. Histology confirmed iron deposition and lipofuscin, an inducer of ferroptosis in PAD-affected muscle. CONCLUSIONS This report presents a novel finding that genes known to be involved in ferroptosis are differentially expressed in human skeletal muscle affected by PAD. Targeting ferroptosis may be a novel therapeutic strategy to reduce PAD myopathy.
Collapse
Affiliation(s)
- Lillian Tran
- University of Pittsburgh Medical Center Department of Surgery
| | - Bowen Xie
- University of Pittsburgh Medical Center Department of Surgery
| | - Edwyn Assaf
- University of Pittsburgh Medical Center Department of Surgery
| | - Ricardo Ferrari
- University of Pittsburgh Medical Center Department of Surgery
| | - Iraklis I. Pipinos
- University of Nebraska Medical Center Department of Surgery and the VAResearch Service, VA Nebraska-Western Iowa Health Care System
| | - George P. Casale
- University of Nebraska Medical Center Department of Surgery and the VAResearch Service, VA Nebraska-Western Iowa Health Care System
| | | | - Simon Watkins
- University of Pittsburgh Center for Biologic Imaging
| | - Ulka Sachdev
- University of Pittsburgh Medical Center Department of Surgery
| |
Collapse
|
2
|
Scalabrin M, Engman V, Maccannell A, Critchlow A, Roberts LD, Yuldasheva N, Bowen TS. Temporal analysis of skeletal muscle remodeling post hindlimb ischemia reveals intricate autophagy regulation. Am J Physiol Cell Physiol 2022; 323:C1601-C1610. [PMID: 36252128 PMCID: PMC9722248 DOI: 10.1152/ajpcell.00174.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Hind limb ischemia (HLI) is the most severe form of peripheral arterial disease, associated with a substantial reduction of limb blood flow that impairs skeletal muscle homeostasis to promote functional disability. The molecular regulators of HLI-induced muscle perturbations remain poorly defined. This study investigated whether changes in the molecular catabolic-autophagy signaling network were linked to temporal remodeling of skeletal muscle in HLI. HLI was induced in mice via hindlimb ischemia (femoral artery ligation) and confirmed by Doppler echocardiography. Experiments were terminated at time points defined as early- (7 days; n = 5) or late- (28 days; n = 5) stage HLI. Ischemic and nonischemic (contralateral) limb muscles were compared. Ischemic versus nonischemic muscles demonstrated overt remodeling at early-HLI but normalized at late-HLI. Early-onset fiber atrophy was associated with excessive autophagy signaling in ischemic muscle; protein expression increased for Beclin-1, LC3, and p62 (P < 0.05) but proteasome-dependent markers were reduced (P < 0.05). Mitophagy signaling increased in early-stage HLI that aligned with an early and sustained loss of mitochondrial content (P < 0.05). Upstream autophagy regulators, Sestrins, showed divergent responses during early-stage HLI (Sestrin2 increased while Sestrin1 decreased; P < 0.05) in parallel to increased AMP-activated protein kinase (AMPK) phosphorylation (P < 0.05) and lower antioxidant enzyme expression. No changes were found in markers for mechanistic target of rapamycin complex 1 signaling. These data indicate that early activation of the sestrin-AMPK signaling axis may regulate autophagy to stimulate rapid and overt muscle atrophy in HLI, which is normalized within weeks and accompanied by recovery of muscle mass. A complex interplay between Sestrins to regulate autophagy signaling during early-to-late muscle remodeling in HLI is likely.
Collapse
Affiliation(s)
- Mattia Scalabrin
- School of Biomedical Science, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
| | - Viktor Engman
- School of Biomedical Science, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
| | - Amanda Maccannell
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom
| | - Annabel Critchlow
- School of Biomedical Science, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
| | - Lee D Roberts
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom
| | - Nadira Yuldasheva
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, United Kingdom
| | - T Scott Bowen
- School of Biomedical Science, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
| |
Collapse
|
3
|
Ferrari R, Xie B, Assaf E, Morder K, Scott M, Liao H, Calderon MJ, Ross M, Loughran P, Watkins SC, Pipinos I, Casale G, Tzeng E, McEnaney R, Sachdev U. Inflammatory Caspase Activity Mediates HMGB1 Release and Differentiation in Myoblasts Affected by Peripheral Arterial Disease. Cells 2022; 11:1163. [PMID: 35406727 PMCID: PMC8997414 DOI: 10.3390/cells11071163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/08/2022] [Accepted: 03/11/2022] [Indexed: 12/10/2022] Open
Abstract
Introduction: We previously showed that caspase-1 and -11, which are activated by inflammasomes, mediate recovery from muscle ischemia in mice. We hypothesized that similar to murine models, inflammatory caspases modulate myogenicity and inflammation in ischemic muscle disease. Methods: Caspase activity was measured in ischemic and perfused human myoblasts in response to the NLRP3 and AIM2 inflammasome agonists (nigericin and poly(dA:dT), respectively) with and without specific caspase-1 or pan-caspase inhibition. mRNA levels of myogenic markers and caspase-1 were assessed, and protein levels of caspases-1, -4, -5, and -3 were measured by Western blot. Results: When compared to perfused cells, ischemic myoblasts demonstrated attenuated MyoD and myogenin and elevated caspase-1 mRNA. Ischemic myoblasts also had significantly higher enzymatic caspase activity with poly(dA:dT) (p < 0.001), but not nigericin stimulation. Inhibition of caspase activity including caspase-4/-5, but not caspase-1, blocked activation effects of poly(dA:dT). Ischemic myoblasts had elevated cleaved caspase-5. Inhibition of caspase activity deterred differentiation in ischemic but not perfused myoblasts and reduced the release of HMGB1 from both groups. Conclusion: Inflammatory caspases can be activated in ischemic myoblasts by AIM2 and influence ischemic myoblast differentiation and release of pro-angiogenic HMGB1. AIM2 inflammasome involvement suggests a role as a DNA damage sensor, and our data suggest that caspase-5 rather than caspase-1 may mediate the downstream mediator of this pathway.
Collapse
Affiliation(s)
- Ricardo Ferrari
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA; (R.F.); (B.X.); (E.A.); (K.M.); (M.S.); (H.L.); (E.T.); (R.M.)
| | - Bowen Xie
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA; (R.F.); (B.X.); (E.A.); (K.M.); (M.S.); (H.L.); (E.T.); (R.M.)
| | - Edwyn Assaf
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA; (R.F.); (B.X.); (E.A.); (K.M.); (M.S.); (H.L.); (E.T.); (R.M.)
| | - Kristin Morder
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA; (R.F.); (B.X.); (E.A.); (K.M.); (M.S.); (H.L.); (E.T.); (R.M.)
| | - Melanie Scott
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA; (R.F.); (B.X.); (E.A.); (K.M.); (M.S.); (H.L.); (E.T.); (R.M.)
| | - Hong Liao
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA; (R.F.); (B.X.); (E.A.); (K.M.); (M.S.); (H.L.); (E.T.); (R.M.)
| | - Michael J. Calderon
- University of Pittsburgh Center for Biologic Imaging, Pittsburgh, PA 15213, USA; (M.J.C.); (M.R.); (P.L.); (S.C.W.)
| | - Mark Ross
- University of Pittsburgh Center for Biologic Imaging, Pittsburgh, PA 15213, USA; (M.J.C.); (M.R.); (P.L.); (S.C.W.)
| | - Patricia Loughran
- University of Pittsburgh Center for Biologic Imaging, Pittsburgh, PA 15213, USA; (M.J.C.); (M.R.); (P.L.); (S.C.W.)
| | - Simon C. Watkins
- University of Pittsburgh Center for Biologic Imaging, Pittsburgh, PA 15213, USA; (M.J.C.); (M.R.); (P.L.); (S.C.W.)
| | - Iraklis Pipinos
- Department of Surgery, University of Nebraska, Omaha, NE 68198, USA; (I.P.); (G.C.)
- Department of Surgery, Veterans Affairs Hospital, Pittsburgh, PA 15240, USA
| | - George Casale
- Department of Surgery, University of Nebraska, Omaha, NE 68198, USA; (I.P.); (G.C.)
| | - Edith Tzeng
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA; (R.F.); (B.X.); (E.A.); (K.M.); (M.S.); (H.L.); (E.T.); (R.M.)
- Department of Surgery, Veterans Affairs Hospital, Pittsburgh, PA 15240, USA
| | - Ryan McEnaney
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA; (R.F.); (B.X.); (E.A.); (K.M.); (M.S.); (H.L.); (E.T.); (R.M.)
- Department of Surgery, Veterans Affairs Hospital, Pittsburgh, PA 15240, USA
| | - Ulka Sachdev
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA; (R.F.); (B.X.); (E.A.); (K.M.); (M.S.); (H.L.); (E.T.); (R.M.)
| |
Collapse
|
4
|
Sun P, Zhong J, Liao H, Loughran P, Mulla J, Fu G, Tang D, Fan J, Billiar TR, Gao W, Scott MJ. Hepatocytes Are Resistant to Cell Death From Canonical and Non-Canonical Inflammasome-Activated Pyroptosis. Cell Mol Gastroenterol Hepatol 2021; 13:739-757. [PMID: 34890842 PMCID: PMC8783146 DOI: 10.1016/j.jcmgh.2021.11.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 11/30/2021] [Accepted: 11/30/2021] [Indexed: 12/25/2022]
Abstract
BACKGROUND Pyroptosis, gasdermin-mediated programmed cell death, is readily induced in macrophages by activation of the canonical inflammasome (caspase-1) or by intracellular lipopolysaccharide (LPS)-mediated non-canonical inflammasome (caspase-11) activation. However, whether pyroptosis is induced similarly in hepatocytes is still largely controversial but highly relevant to liver pathologies such as alcoholic/nonalcoholic liver disease, drug-induced liver injury, ischemia-reperfusion and liver transplant injury, or organ damage secondary to sepsis. METHODS AND RESULTS In this study we found that hepatocytes activate and cleave gasdermin-D (GSDMD) at low levels after treatment with LPS. Overexpression of caspase-1 or caspase-11 p10/p20 activated domains was able to induce typical GSDMD-dependent pyroptosis in hepatocytes both in vitro and in vivo. However, morphologic features of pyroptosis in macrophages (eg, pyroptotic bodies, cell flattening, loss of cell structure) did not occur in pyroptotic hepatocytes, with cell structure remaining relatively intact despite the cell membrane being breached. Our results suggest that hepatocytes activate pyroptosis pathways and cleave GSDMD, but this does not result in cell rupture and confer the same pyroptotic morphologic changes as previously reported in macrophages. This is true even with caspase-1 or caspase-11 artificial overexpression way above levels seen endogenously even after priming or in pathologic conditions. CONCLUSIONS Our novel findings characterize hepatocyte morphology in pyroptosis and suggest alternative use for canonical/non-canonical inflammasome activation/signaling and subsequent GSDMD cleavage because there is no rapid cell death as in macrophages. Improved understanding and recognition of the role of these pathways in hepatocytes may result in novel therapeutics for a range of liver diseases.
Collapse
Affiliation(s)
- Ping Sun
- Department of Hepatobiliary Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China,Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Jie Zhong
- Department of Burn and Plastic Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Hong Liao
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Patricia Loughran
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania,Center for Biologic Imaging, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Joud Mulla
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Guang Fu
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania,Department of General Surgery, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Da Tang
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania,Department of General Surgery, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Jie Fan
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania,Research and Development, Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, Pennsylvania
| | - Timothy R. Billiar
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania,Pittsburgh Liver Research Center, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Wentao Gao
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Melanie J. Scott
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania,Pittsburgh Liver Research Center, University of Pittsburgh, Pittsburgh, Pennsylvania,Correspondence Address correspondence to: Melanie J. Scott, MD, PhD, Department of Surgery Labs, University of Pittsburgh, NW653 MUH, 3459 Fifth Avenue, Pittsburgh, Pennsylvania 15213. fax: (412) 647-5959.
| |
Collapse
|
5
|
Agnew A, Nulty C, Creagh EM. Regulation, Activation and Function of Caspase-11 during Health and Disease. Int J Mol Sci 2021; 22:ijms22041506. [PMID: 33546173 PMCID: PMC7913190 DOI: 10.3390/ijms22041506] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 01/30/2021] [Accepted: 02/01/2021] [Indexed: 02/04/2023] Open
Abstract
Caspase-11 is a pro-inflammatory enzyme that is stringently regulated during its expression and activation. As caspase-11 is not constitutively expressed in cells, it requires a priming step for its upregulation, which occurs following the stimulation of pathogen and cytokine receptors. Once expressed, caspase-11 activation is triggered by its interaction with lipopolysaccharide (LPS) from Gram-negative bacteria. Being an initiator caspase, activated caspase-11 functions primarily through its cleavage of key substrates. Gasdermin D (GSDMD) is the primary substrate of caspase-11, and the GSDMD cleavage fragment generated is responsible for the inflammatory form of cell death, pyroptosis, via its formation of pores in the plasma membrane. Thus, caspase-11 functions as an intracellular sensor for LPS and an immune effector. This review provides an overview of caspase-11—describing its structure and the transcriptional mechanisms that govern its expression, in addition to its activation, which is reported to be regulated by factors such as guanylate-binding proteins (GBPs), high mobility group box 1 (HMGB1) protein, and oxidized phospholipids. We also discuss the functional outcomes of caspase-11 activation, which include the non-canonical inflammasome, modulation of actin dynamics, and the initiation of blood coagulation, highlighting the importance of inflammatory caspase-11 during infection and disease.
Collapse
|