PERK/ATF4-dependent expression of the stress response protein REDD1 promotes proinflammatory cytokine expression in the heart of obese mice
Endoplasmic reticulum (ER) stress and inflammation are hallmarks of myocardial impairment. Here, we investigated the role of the stress response protein regulated in development and DNA damage 1 (REDD1) as a molecular link between ER stress and inflammation in cardiomyocytes. In mice fed a high-fat high-sucrose (HFHS, 42% kcal fat, 34% sucrose by weight) diet for 12 wk, REDD1 expression in the heart was increased in coordination with markers of ER stress and inflammation. In human AC16 cardiomyocytes exposed to either hyperglycemic conditions or the saturated fatty acid palmitate, REDD1 expression was increased coincident with ER stress and upregulated expression of the proinflammatory cytokines IL-1β, IL-6, and TNFα. In cardiomyocytes exposed to hyperglycemic/hyperlipidemic conditions, pharmacological inhibition of the ER kinase protein kinase RNA-like endoplasmic reticulum kinase (PERK) or knockdown of the transcription factor ATF4 prevented the increase in REDD1 expression. REDD1 deletion reduced proinflammatory cytokine expression in both cardiomyocytes exposed to hyperglycemic/hyperlipidemic conditions and in the hearts of obese mice. Overall, the findings support a model wherein HFHS diet contributes to the development of inflammation in cardiomyocytes by promoting REDD1 expression via activation of a PERK/ATF4 signaling axis.NEW & NOTEWORTHY Interplay between endoplasmic reticulum stress and inflammation contributes to cardiovascular disease progression. The studies here identify the stress response protein known as REDD1 as a missing molecular link that connects the development of endoplasmic reticulum stress with increased production of proinflammatory cytokines in the hearts of obese mice.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2023 |
|---|---|
| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:324 |
|---|---|
| Enthalten in: |
American journal of physiology. Endocrinology and metabolism - 324(2023), 1 vom: 01. Jan., Seite E62-E72 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Stevens, Shaunaci A [VerfasserIn] |
|---|
| Links: |
|---|
| Anmerkungen: |
Date Completed 24.01.2023 Date Revised 25.04.2023 published: Print-Electronic Citation Status MEDLINE |
|---|
| doi: |
10.1152/ajpendo.00238.2022 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM348970374 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM348970374 | ||
| 003 | DE-627 | ||
| 005 | 20231226041538.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231226s2023 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1152/ajpendo.00238.2022 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1163.xml |
| 035 | |a (DE-627)NLM348970374 | ||
| 035 | |a (NLM)36383638 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Stevens, Shaunaci A |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a PERK/ATF4-dependent expression of the stress response protein REDD1 promotes proinflammatory cytokine expression in the heart of obese mice |
| 264 | 1 | |c 2023 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Completed 24.01.2023 | ||
| 500 | |a Date Revised 25.04.2023 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Endoplasmic reticulum (ER) stress and inflammation are hallmarks of myocardial impairment. Here, we investigated the role of the stress response protein regulated in development and DNA damage 1 (REDD1) as a molecular link between ER stress and inflammation in cardiomyocytes. In mice fed a high-fat high-sucrose (HFHS, 42% kcal fat, 34% sucrose by weight) diet for 12 wk, REDD1 expression in the heart was increased in coordination with markers of ER stress and inflammation. In human AC16 cardiomyocytes exposed to either hyperglycemic conditions or the saturated fatty acid palmitate, REDD1 expression was increased coincident with ER stress and upregulated expression of the proinflammatory cytokines IL-1β, IL-6, and TNFα. In cardiomyocytes exposed to hyperglycemic/hyperlipidemic conditions, pharmacological inhibition of the ER kinase protein kinase RNA-like endoplasmic reticulum kinase (PERK) or knockdown of the transcription factor ATF4 prevented the increase in REDD1 expression. REDD1 deletion reduced proinflammatory cytokine expression in both cardiomyocytes exposed to hyperglycemic/hyperlipidemic conditions and in the hearts of obese mice. Overall, the findings support a model wherein HFHS diet contributes to the development of inflammation in cardiomyocytes by promoting REDD1 expression via activation of a PERK/ATF4 signaling axis.NEW & NOTEWORTHY Interplay between endoplasmic reticulum stress and inflammation contributes to cardiovascular disease progression. The studies here identify the stress response protein known as REDD1 as a missing molecular link that connects the development of endoplasmic reticulum stress with increased production of proinflammatory cytokines in the hearts of obese mice | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, N.I.H., Extramural | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a DDIT4 | |
| 650 | 4 | |a diabetes | |
| 650 | 4 | |a endoplasmic reticulum stress | |
| 650 | 4 | |a inflammation | |
| 650 | 4 | |a obesity | |
| 650 | 7 | |a Activating Transcription Factor 4 |2 NLM | |
| 650 | 7 | |a 145891-90-3 |2 NLM | |
| 650 | 7 | |a Cytokines |2 NLM | |
| 650 | 7 | |a eIF-2 Kinase |2 NLM | |
| 650 | 7 | |a EC 2.7.11.1 |2 NLM | |
| 650 | 7 | |a Heat-Shock Proteins |2 NLM | |
| 650 | 7 | |a Protein Kinases |2 NLM | |
| 650 | 7 | |a EC 2.7.- |2 NLM | |
| 650 | 7 | |a PERK kinase |2 NLM | |
| 650 | 7 | |a EC 2.7.11.1 |2 NLM | |
| 650 | 7 | |a DDIT4 protein, human |2 NLM | |
| 650 | 7 | |a Atf4 protein, mouse |2 NLM | |
| 650 | 7 | |a Ddit4 protein, mouse |2 NLM | |
| 700 | 1 | |a Gonzalez Aguiar, Maria K |e verfasserin |4 aut | |
| 700 | 1 | |a Toro, Allyson L |e verfasserin |4 aut | |
| 700 | 1 | |a Yerlikaya, Esma I |e verfasserin |4 aut | |
| 700 | 1 | |a Sunilkumar, Siddharth |e verfasserin |4 aut | |
| 700 | 1 | |a VanCleave, Ashley M |e verfasserin |4 aut | |
| 700 | 1 | |a Pfleger, Jessica |e verfasserin |4 aut | |
| 700 | 1 | |a Bradley, Elisa A |e verfasserin |4 aut | |
| 700 | 1 | |a Kimball, Scot R |e verfasserin |4 aut | |
| 700 | 1 | |a Dennis, Michael D |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t American journal of physiology. Endocrinology and metabolism |d 1993 |g 324(2023), 1 vom: 01. Jan., Seite E62-E72 |w (DE-627)NLM105734934 |x 1522-1555 |7 nnns |
| 773 | 1 | 8 | |g volume:324 |g year:2023 |g number:1 |g day:01 |g month:01 |g pages:E62-E72 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1152/ajpendo.00238.2022 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 324 |j 2023 |e 1 |b 01 |c 01 |h E62-E72 | ||