Cathepsin S activity controls chronic stress-induced muscle atrophy and dysfunction in mice
Abstract Exposure to chronic psychological stress (CPS) is an intractable risk factor for inflammatory and metabolic diseases. Lysosomal cysteinyl cathepsins play an important role in human pathobiology. Given that cathepsin S (CTSS) is upregulated in the stressed vascular and adipose tissues, we investigated whether CTSS participates in chronic stress-induced skeletal muscle mass loss and dysfunction, with a special focus on muscle protein metabolic imbalance and apoptosis. Eight-week-old male wildtype ($ CTSS^{+/+} $) and CTSS-knockout ($ CTSS^{−/−} $) mice were randomly assigned to non-stress and variable-stress groups. $ CTSS^{+/+} $ stressed mice showed significant losses of muscle mass, dysfunction, and fiber area, plus significant mitochondrial damage. In this setting, stressed muscle in $ CTSS^{+/+} $ mice presented harmful alterations in the levels of insulin receptor substrate 2 protein content (IRS-2), phospho-phosphatidylinositol 3-kinase, phospho-protein kinase B, and phospho-mammalian target of rapamycin, forkhead box-1, muscle RING-finger protein-1 protein, mitochondrial biogenesis-related peroxisome proliferator-activated receptor-γ coactivator-α, and apoptosis-related B-cell lymphoma 2 and cleaved caspase-3; these alterations were prevented by CTSS deletion. Pharmacological CTSS inhibition mimics its genetic deficiency-mediated muscle benefits. In $ C_{2} %$ C_{12} $ cells, CTSS silencing prevented stressed serum- and oxidative stress-induced IRS-2 protein reduction, loss of the myotube myosin heavy chain content, and apoptosis accompanied by a rectification of investigated molecular harmful changes; these changes were accelerated by CTSS overexpression. These findings demonstrated that CTSS plays a role in IRS-2-related protein anabolism and catabolism and cell apoptosis in stress-induced muscle wasting, suggesting a novel therapeutic strategy for the control of chronic stress-related muscle disease in mice under our experimental conditions by regulating CTSS activity..
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2023 |
|---|---|
| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:80 |
|---|---|
| Enthalten in: |
Cellular and molecular life sciences - 80(2023), 9 vom: 17. Aug. |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Wan, Ying [VerfasserIn] |
|---|
| Links: |
Volltext [kostenfrei] |
|---|
| Themen: |
Apoptosis |
|---|
| Anmerkungen: |
© The Author(s) 2023 |
|---|
| doi: |
10.1007/s00018-023-04888-4 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
SPR052769143 |
|---|
| LEADER | 01000caa a22002652 4500 | ||
|---|---|---|---|
| 001 | SPR052769143 | ||
| 003 | DE-627 | ||
| 005 | 20230912064648.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 230818s2023 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1007/s00018-023-04888-4 |2 doi | |
| 035 | |a (DE-627)SPR052769143 | ||
| 035 | |a (SPR)s00018-023-04888-4-e | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Wan, Ying |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Cathepsin S activity controls chronic stress-induced muscle atrophy and dysfunction in mice |
| 264 | 1 | |c 2023 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a © The Author(s) 2023 | ||
| 520 | |a Abstract Exposure to chronic psychological stress (CPS) is an intractable risk factor for inflammatory and metabolic diseases. Lysosomal cysteinyl cathepsins play an important role in human pathobiology. Given that cathepsin S (CTSS) is upregulated in the stressed vascular and adipose tissues, we investigated whether CTSS participates in chronic stress-induced skeletal muscle mass loss and dysfunction, with a special focus on muscle protein metabolic imbalance and apoptosis. Eight-week-old male wildtype ($ CTSS^{+/+} $) and CTSS-knockout ($ CTSS^{−/−} $) mice were randomly assigned to non-stress and variable-stress groups. $ CTSS^{+/+} $ stressed mice showed significant losses of muscle mass, dysfunction, and fiber area, plus significant mitochondrial damage. In this setting, stressed muscle in $ CTSS^{+/+} $ mice presented harmful alterations in the levels of insulin receptor substrate 2 protein content (IRS-2), phospho-phosphatidylinositol 3-kinase, phospho-protein kinase B, and phospho-mammalian target of rapamycin, forkhead box-1, muscle RING-finger protein-1 protein, mitochondrial biogenesis-related peroxisome proliferator-activated receptor-γ coactivator-α, and apoptosis-related B-cell lymphoma 2 and cleaved caspase-3; these alterations were prevented by CTSS deletion. Pharmacological CTSS inhibition mimics its genetic deficiency-mediated muscle benefits. In $ C_{2} %$ C_{12} $ cells, CTSS silencing prevented stressed serum- and oxidative stress-induced IRS-2 protein reduction, loss of the myotube myosin heavy chain content, and apoptosis accompanied by a rectification of investigated molecular harmful changes; these changes were accelerated by CTSS overexpression. These findings demonstrated that CTSS plays a role in IRS-2-related protein anabolism and catabolism and cell apoptosis in stress-induced muscle wasting, suggesting a novel therapeutic strategy for the control of chronic stress-related muscle disease in mice under our experimental conditions by regulating CTSS activity. | ||
| 650 | 4 | |a Chronic stress |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Skeletal muscle injury |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Cathepsin S |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Catabolism |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Apoptosis |7 (dpeaa)DE-He213 | |
| 700 | 1 | |a Piao, Limei |4 aut | |
| 700 | 1 | |a Xu, Shengnan |4 aut | |
| 700 | 1 | |a Meng, Xiangkun |4 aut | |
| 700 | 1 | |a Huang, Zhe |4 aut | |
| 700 | 1 | |a Inoue, Aiko |4 aut | |
| 700 | 1 | |a Wang, Hailong |4 aut | |
| 700 | 1 | |a Yue, Xueling |4 aut | |
| 700 | 1 | |a Jin, Xueying |4 aut | |
| 700 | 1 | |a Nan, Yongshan |4 aut | |
| 700 | 1 | |a Shi, Guo-Ping |4 aut | |
| 700 | 1 | |a Murohara, Toyoaki |4 aut | |
| 700 | 1 | |a Umegaki, Hiroyuki |4 aut | |
| 700 | 1 | |a Kuzuya, Masafumi |4 aut | |
| 700 | 1 | |a Cheng, Xian Wu |0 (orcid)0000-0002-9758-0632 |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Cellular and molecular life sciences |d Cham (ZG) : Springer International Publishing AG, 1997 |g 80(2023), 9 vom: 17. Aug. |w (DE-627)SPR00008039X |w (DE-600)1458497-9 |x 1420-9071 |7 nnns |
| 773 | 1 | 8 | |g volume:80 |g year:2023 |g number:9 |g day:17 |g month:08 |
| 856 | 4 | 0 | |u https://dx.doi.org/10.1007/s00018-023-04888-4 |z kostenfrei |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_SPRINGER | ||
| 951 | |a AR | ||
| 952 | |d 80 |j 2023 |e 9 |b 17 |c 08 | ||