O-GlcNAcylated p53 in the liver modulates hepatic glucose production
p53 regulates several signaling pathways to maintain the metabolic homeostasis of cells and modulates the cellular response to stress. Deficiency or excess of nutrients causes cellular metabolic stress, and we hypothesized that p53 could be linked to glucose maintenance. We show here that upon starv...
| Autores: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2021 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | Dadun. Depósito Académico Digital de la Universidad de Navarra |
| Idioma: | inglés |
| OAI Identifier: | oai:dadun.unav.edu:10171/114713 |
| Acceso en línea: | https://hdl.handle.net/10171/114713 |
| Access Level: | acceso abierto |
| Palabra clave: | P53 Metabolic homeostasis of cells Response to stress |
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| dc.title.none.fl_str_mv |
O-GlcNAcylated p53 in the liver modulates hepatic glucose production |
| title |
O-GlcNAcylated p53 in the liver modulates hepatic glucose production |
| spellingShingle |
O-GlcNAcylated p53 in the liver modulates hepatic glucose production Gonzalez-Rellan, M.J. (María J.)|||/items/eb5f3b93-72d6-4030-b4f0-feb2293ebe75 P53 Metabolic homeostasis of cells Response to stress |
| title_short |
O-GlcNAcylated p53 in the liver modulates hepatic glucose production |
| title_full |
O-GlcNAcylated p53 in the liver modulates hepatic glucose production |
| title_fullStr |
O-GlcNAcylated p53 in the liver modulates hepatic glucose production |
| title_full_unstemmed |
O-GlcNAcylated p53 in the liver modulates hepatic glucose production |
| title_sort |
O-GlcNAcylated p53 in the liver modulates hepatic glucose production |
| dc.creator.none.fl_str_mv |
Gonzalez-Rellan, M.J. (María J.)|||/items/eb5f3b93-72d6-4030-b4f0-feb2293ebe75 Fondevila, M.F. (Marcos F.)|||/items/42515fd5-cb1f-44a3-99aa-b643d79de50b Fernández, U. (Uxía)|||/items/b5339a5a-3803-4411-b618-ee1c94654657 Rodriguez, A. (Amaia)|||/items/50976a5f-9842-47f1-8a9c-508e59996427 Varela-Rey, M. (Marta)|||/items/c142211c-bbe7-4b40-a3ad-8d17134ee686 Veyrat-Durebex, C. (Christelle)|||/items/9d98726e-c438-4ce5-8934-f502d9067ba2 Seoane, S. (Samuel)|||/items/04b32e0a-25e4-447c-b714-db1895887045 Bernardo, G. (Ganeko)|||/items/5ef92288-af4e-4e5a-b1d0-ce00708cc8bd Lopitz-Otsoa, F. (Fernando)|||/items/5e18ab21-ac81-4254-ae11-9dc9d3213e80 Fernández-Ramos, D. (David)|||/items/d5e19220-54fe-4552-ad3a-5bb8150cd786 Bilbao, J. (Jon)|||/items/d558ad14-d0b1-4ff0-aa00-e36ee854dac5 Iglesias, C. (Cristina)|||/items/6c293a8c-e822-45bd-a55f-19dd42bf8d05 Novoa, E. (Eva)|||/items/766fd1b8-02a2-455c-9709-c565201be738 Ameneiro, C. (Cristina)|||/items/a8899de9-19dd-41f5-ba90-2571cbdd9584 Senra, A. (Ana)|||/items/f48cb1cd-d1eb-46d4-abc6-c985f6e23cc4 Beiroa, D. (Daniel)|||/items/59b676a1-cbf0-4dd2-9e87-f0fe518e14c6 Cuñarro, J. (Juan)|||/items/4f31a7ee-5d63-48a5-8589-937b1e064278 Chantada-Vazquez, M.D.P. (Maria D.P.)|||/items/ff0d8bb2-d9b0-489c-9d52-bd1a40b63be9 Garcia-Vence, M. (Maria)|||/items/fd3ba38b-869c-4687-a7a7-f3399700e5eb Bravo, S. (Susana B.)|||/items/e01e519b-f836-4fcb-86d7-31112734e8e2 da-Silva-Lima, N. (Natalia)|||/items/9e088f99-dea7-42cf-8026-21c1027c1af8 Porteiro, B. (Begoña)|||/items/a0469e98-1bfb-4768-ada9-24573be6f1cb Carneiro, C. (Carmen)|||/items/5705da5b-e5cb-48ec-9ec5-746f1fe2c0ec Vidal, A. (Anxo)|||/items/a8facbdb-e501-4b94-9e61-fa3244770258 Tovar, S. (Sulay)|||/items/5716a149-8ad6-45d3-b30b-4f67d30cd2fb Müller, T.D. (Timo D.)|||/items/e61aad48-a7c8-45a7-b479-6358a9659fa6 Ferno, J. (Johan)|||/items/6babd121-81a7-41ca-8d0c-edbea833d10b Guallar, D. (Diana)|||/items/1dc9d5a7-af90-4a94-86a4-9e3e6b3d4058 Fidalgo, M. (Miguel)|||/items/35c79a24-3ecd-498b-bc11-3a43ce977d46 Sabio, G. (Guadalupe)|||/items/f04ae0a3-ab59-4e44-b814-5e413bd5584d Herzig, S. (Stephan)|||/items/386d0e63-7570-43c0-8777-8098a62b5396 Yang, W.H. (Won Ho)|||/items/77c8f762-1c9c-4381-ab12-c79d2e8e209f Cho, J.W. (Jin Won)|||/items/32b24e5d-69d2-4de8-821d-139899127fbe Martinez-Chantar, M.L. (María Luz)|||/items/df06120b-2a53-4074-a155-638f899b2ce5 Perez-Fernandez, R. (Roman)|||/items/91f47f3e-1252-4e50-8446-0da3888e794d López-Yoldi, M. (Miguel)|||/items/d3db8959-5c7f-4257-8a0a-b2374e5da832 Dieguez, C. (Carlos)|||/items/54b49b82-82ec-4bb6-9d48-c54fb1d572fb Mato, J.M. (José María)|||/items/302dc624-b0d3-4703-90cf-1a97690ebc79 Millet, O. (Oscar)|||/items/d6bbd577-a3c4-4f18-9dc5-1686de0e0489 Coppari, R. (Roberto)|||/items/0aab48ad-95e3-4a9b-aead-c2edc24d5433 Woodhoo, A. (Ashwin)|||/items/a9e90cb2-bac1-43fb-a0b2-5e3409f9c860 Frühbeck, G. (Gema)|||/items/7f0b1f72-bc91-4ab0-a3fd-21e9a3fb663b Nogueiras, R. (Rubén)|||/items/d6d4c851-6ed5-47d3-9361-c80bbfae88e6 |
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Gonzalez-Rellan, M.J. (María J.)|||/items/eb5f3b93-72d6-4030-b4f0-feb2293ebe75 |
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Gonzalez-Rellan, M.J. (María J.)|||/items/eb5f3b93-72d6-4030-b4f0-feb2293ebe75 Fondevila, M.F. (Marcos F.)|||/items/42515fd5-cb1f-44a3-99aa-b643d79de50b Fernández, U. (Uxía)|||/items/b5339a5a-3803-4411-b618-ee1c94654657 Rodriguez, A. (Amaia)|||/items/50976a5f-9842-47f1-8a9c-508e59996427 Varela-Rey, M. (Marta)|||/items/c142211c-bbe7-4b40-a3ad-8d17134ee686 Veyrat-Durebex, C. (Christelle)|||/items/9d98726e-c438-4ce5-8934-f502d9067ba2 Seoane, S. (Samuel)|||/items/04b32e0a-25e4-447c-b714-db1895887045 Bernardo, G. (Ganeko)|||/items/5ef92288-af4e-4e5a-b1d0-ce00708cc8bd Lopitz-Otsoa, F. (Fernando)|||/items/5e18ab21-ac81-4254-ae11-9dc9d3213e80 Fernández-Ramos, D. (David)|||/items/d5e19220-54fe-4552-ad3a-5bb8150cd786 Bilbao, J. (Jon)|||/items/d558ad14-d0b1-4ff0-aa00-e36ee854dac5 Iglesias, C. (Cristina)|||/items/6c293a8c-e822-45bd-a55f-19dd42bf8d05 Novoa, E. (Eva)|||/items/766fd1b8-02a2-455c-9709-c565201be738 Ameneiro, C. (Cristina)|||/items/a8899de9-19dd-41f5-ba90-2571cbdd9584 Senra, A. (Ana)|||/items/f48cb1cd-d1eb-46d4-abc6-c985f6e23cc4 Beiroa, D. (Daniel)|||/items/59b676a1-cbf0-4dd2-9e87-f0fe518e14c6 Cuñarro, J. (Juan)|||/items/4f31a7ee-5d63-48a5-8589-937b1e064278 Chantada-Vazquez, M.D.P. (Maria D.P.)|||/items/ff0d8bb2-d9b0-489c-9d52-bd1a40b63be9 Garcia-Vence, M. (Maria)|||/items/fd3ba38b-869c-4687-a7a7-f3399700e5eb Bravo, S. (Susana B.)|||/items/e01e519b-f836-4fcb-86d7-31112734e8e2 da-Silva-Lima, N. (Natalia)|||/items/9e088f99-dea7-42cf-8026-21c1027c1af8 Porteiro, B. (Begoña)|||/items/a0469e98-1bfb-4768-ada9-24573be6f1cb Carneiro, C. (Carmen)|||/items/5705da5b-e5cb-48ec-9ec5-746f1fe2c0ec Vidal, A. (Anxo)|||/items/a8facbdb-e501-4b94-9e61-fa3244770258 Tovar, S. (Sulay)|||/items/5716a149-8ad6-45d3-b30b-4f67d30cd2fb Müller, T.D. (Timo D.)|||/items/e61aad48-a7c8-45a7-b479-6358a9659fa6 Ferno, J. (Johan)|||/items/6babd121-81a7-41ca-8d0c-edbea833d10b Guallar, D. (Diana)|||/items/1dc9d5a7-af90-4a94-86a4-9e3e6b3d4058 Fidalgo, M. (Miguel)|||/items/35c79a24-3ecd-498b-bc11-3a43ce977d46 Sabio, G. (Guadalupe)|||/items/f04ae0a3-ab59-4e44-b814-5e413bd5584d Herzig, S. (Stephan)|||/items/386d0e63-7570-43c0-8777-8098a62b5396 Yang, W.H. (Won Ho)|||/items/77c8f762-1c9c-4381-ab12-c79d2e8e209f Cho, J.W. (Jin Won)|||/items/32b24e5d-69d2-4de8-821d-139899127fbe Martinez-Chantar, M.L. (María Luz)|||/items/df06120b-2a53-4074-a155-638f899b2ce5 Perez-Fernandez, R. (Roman)|||/items/91f47f3e-1252-4e50-8446-0da3888e794d López-Yoldi, M. (Miguel)|||/items/d3db8959-5c7f-4257-8a0a-b2374e5da832 Dieguez, C. (Carlos)|||/items/54b49b82-82ec-4bb6-9d48-c54fb1d572fb Mato, J.M. (José María)|||/items/302dc624-b0d3-4703-90cf-1a97690ebc79 Millet, O. (Oscar)|||/items/d6bbd577-a3c4-4f18-9dc5-1686de0e0489 Coppari, R. (Roberto)|||/items/0aab48ad-95e3-4a9b-aead-c2edc24d5433 Woodhoo, A. (Ashwin)|||/items/a9e90cb2-bac1-43fb-a0b2-5e3409f9c860 Frühbeck, G. (Gema)|||/items/7f0b1f72-bc91-4ab0-a3fd-21e9a3fb663b Nogueiras, R. (Rubén)|||/items/d6d4c851-6ed5-47d3-9361-c80bbfae88e6 |
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author |
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Fondevila, M.F. (Marcos F.)|||/items/42515fd5-cb1f-44a3-99aa-b643d79de50b Fernández, U. (Uxía)|||/items/b5339a5a-3803-4411-b618-ee1c94654657 Rodriguez, A. (Amaia)|||/items/50976a5f-9842-47f1-8a9c-508e59996427 Varela-Rey, M. (Marta)|||/items/c142211c-bbe7-4b40-a3ad-8d17134ee686 Veyrat-Durebex, C. (Christelle)|||/items/9d98726e-c438-4ce5-8934-f502d9067ba2 Seoane, S. (Samuel)|||/items/04b32e0a-25e4-447c-b714-db1895887045 Bernardo, G. (Ganeko)|||/items/5ef92288-af4e-4e5a-b1d0-ce00708cc8bd Lopitz-Otsoa, F. (Fernando)|||/items/5e18ab21-ac81-4254-ae11-9dc9d3213e80 Fernández-Ramos, D. (David)|||/items/d5e19220-54fe-4552-ad3a-5bb8150cd786 Bilbao, J. (Jon)|||/items/d558ad14-d0b1-4ff0-aa00-e36ee854dac5 Iglesias, C. (Cristina)|||/items/6c293a8c-e822-45bd-a55f-19dd42bf8d05 Novoa, E. (Eva)|||/items/766fd1b8-02a2-455c-9709-c565201be738 Ameneiro, C. (Cristina)|||/items/a8899de9-19dd-41f5-ba90-2571cbdd9584 Senra, A. (Ana)|||/items/f48cb1cd-d1eb-46d4-abc6-c985f6e23cc4 Beiroa, D. (Daniel)|||/items/59b676a1-cbf0-4dd2-9e87-f0fe518e14c6 Cuñarro, J. (Juan)|||/items/4f31a7ee-5d63-48a5-8589-937b1e064278 Chantada-Vazquez, M.D.P. (Maria D.P.)|||/items/ff0d8bb2-d9b0-489c-9d52-bd1a40b63be9 Garcia-Vence, M. (Maria)|||/items/fd3ba38b-869c-4687-a7a7-f3399700e5eb Bravo, S. (Susana B.)|||/items/e01e519b-f836-4fcb-86d7-31112734e8e2 da-Silva-Lima, N. (Natalia)|||/items/9e088f99-dea7-42cf-8026-21c1027c1af8 Porteiro, B. (Begoña)|||/items/a0469e98-1bfb-4768-ada9-24573be6f1cb Carneiro, C. (Carmen)|||/items/5705da5b-e5cb-48ec-9ec5-746f1fe2c0ec Vidal, A. (Anxo)|||/items/a8facbdb-e501-4b94-9e61-fa3244770258 Tovar, S. (Sulay)|||/items/5716a149-8ad6-45d3-b30b-4f67d30cd2fb Müller, T.D. (Timo D.)|||/items/e61aad48-a7c8-45a7-b479-6358a9659fa6 Ferno, J. (Johan)|||/items/6babd121-81a7-41ca-8d0c-edbea833d10b Guallar, D. (Diana)|||/items/1dc9d5a7-af90-4a94-86a4-9e3e6b3d4058 Fidalgo, M. (Miguel)|||/items/35c79a24-3ecd-498b-bc11-3a43ce977d46 Sabio, G. (Guadalupe)|||/items/f04ae0a3-ab59-4e44-b814-5e413bd5584d Herzig, S. (Stephan)|||/items/386d0e63-7570-43c0-8777-8098a62b5396 Yang, W.H. (Won Ho)|||/items/77c8f762-1c9c-4381-ab12-c79d2e8e209f Cho, J.W. (Jin Won)|||/items/32b24e5d-69d2-4de8-821d-139899127fbe Martinez-Chantar, M.L. (María Luz)|||/items/df06120b-2a53-4074-a155-638f899b2ce5 Perez-Fernandez, R. (Roman)|||/items/91f47f3e-1252-4e50-8446-0da3888e794d López-Yoldi, M. (Miguel)|||/items/d3db8959-5c7f-4257-8a0a-b2374e5da832 Dieguez, C. (Carlos)|||/items/54b49b82-82ec-4bb6-9d48-c54fb1d572fb Mato, J.M. (José María)|||/items/302dc624-b0d3-4703-90cf-1a97690ebc79 Millet, O. (Oscar)|||/items/d6bbd577-a3c4-4f18-9dc5-1686de0e0489 Coppari, R. (Roberto)|||/items/0aab48ad-95e3-4a9b-aead-c2edc24d5433 Woodhoo, A. (Ashwin)|||/items/a9e90cb2-bac1-43fb-a0b2-5e3409f9c860 Frühbeck, G. (Gema)|||/items/7f0b1f72-bc91-4ab0-a3fd-21e9a3fb663b Nogueiras, R. (Rubén)|||/items/d6d4c851-6ed5-47d3-9361-c80bbfae88e6 |
| author2_role |
author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
Dadun. Depósito Académico Digital Universidad de Navarra |
| dc.subject.none.fl_str_mv |
P53 Metabolic homeostasis of cells Response to stress |
| topic |
P53 Metabolic homeostasis of cells Response to stress |
| description |
p53 regulates several signaling pathways to maintain the metabolic homeostasis of cells and modulates the cellular response to stress. Deficiency or excess of nutrients causes cellular metabolic stress, and we hypothesized that p53 could be linked to glucose maintenance. We show here that upon starvation hepatic p53 is stabilized by O-GlcNAcylation and plays an essential role in the physiological regulation of glucose homeostasis. More specifically, p53 binds to PCK1 promoter and regulates its transcriptional activation, thereby controlling hepatic glucose production. Mice lacking p53 in the liver show a reduced gluconeogenic response during calorie restriction. Glucagon, adrenaline and glucocorticoids augment protein levels of p53, and administration of these hormones to p53 deficient human hepatocytes and to liver-specific p53 deficient mice fails to increase glucose levels. Moreover, insulin decreases p53 levels, and over-expression of p53 impairs insulin sensitivity. Finally, protein levels of p53, as well as genes responsible of O-GlcNAcylation are elevated in the liver of type 2 diabetic patients and positively correlate with glucose and HOMA-IR. Overall these results indicate that the O-GlcNAcylation of p53 plays an unsuspected key role regulating in vivo glucose homeostasis. |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021 2021-01-01 2021 2021-01-01 |
| dc.type.none.fl_str_mv |
journal article http://purl.org/coar/resource_type/c_6501 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
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article |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/10171/114713 |
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https://hdl.handle.net/10171/114713 |
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Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 |
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info:eu-repo/semantics/openAccess |
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open access http://purl.org/coar/access_right/c_abf2 |
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openAccess |
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application/pdf |
| dc.publisher.none.fl_str_mv |
Nature Pub. Group |
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Nature Pub. Group |
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reponame:Dadun. Depósito Académico Digital de la Universidad de Navarra instname:Consejo Superior de Investigaciones Científicas (CSIC) |
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Consejo Superior de Investigaciones Científicas (CSIC) |
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Dadun. Depósito Académico Digital de la Universidad de Navarra |
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Dadun. Depósito Académico Digital de la Universidad de Navarra |
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1869405127564066817 |
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O-GlcNAcylated p53 in the liver modulates hepatic glucose productionGonzalez-Rellan, M.J. (María J.)|||/items/eb5f3b93-72d6-4030-b4f0-feb2293ebe75Fondevila, M.F. (Marcos F.)|||/items/42515fd5-cb1f-44a3-99aa-b643d79de50bFernández, U. (Uxía)|||/items/b5339a5a-3803-4411-b618-ee1c94654657Rodriguez, A. (Amaia)|||/items/50976a5f-9842-47f1-8a9c-508e59996427Varela-Rey, M. (Marta)|||/items/c142211c-bbe7-4b40-a3ad-8d17134ee686Veyrat-Durebex, C. (Christelle)|||/items/9d98726e-c438-4ce5-8934-f502d9067ba2Seoane, S. (Samuel)|||/items/04b32e0a-25e4-447c-b714-db1895887045Bernardo, G. (Ganeko)|||/items/5ef92288-af4e-4e5a-b1d0-ce00708cc8bdLopitz-Otsoa, F. (Fernando)|||/items/5e18ab21-ac81-4254-ae11-9dc9d3213e80Fernández-Ramos, D. (David)|||/items/d5e19220-54fe-4552-ad3a-5bb8150cd786Bilbao, J. (Jon)|||/items/d558ad14-d0b1-4ff0-aa00-e36ee854dac5Iglesias, C. (Cristina)|||/items/6c293a8c-e822-45bd-a55f-19dd42bf8d05Novoa, E. (Eva)|||/items/766fd1b8-02a2-455c-9709-c565201be738Ameneiro, C. (Cristina)|||/items/a8899de9-19dd-41f5-ba90-2571cbdd9584Senra, A. (Ana)|||/items/f48cb1cd-d1eb-46d4-abc6-c985f6e23cc4Beiroa, D. (Daniel)|||/items/59b676a1-cbf0-4dd2-9e87-f0fe518e14c6Cuñarro, J. (Juan)|||/items/4f31a7ee-5d63-48a5-8589-937b1e064278Chantada-Vazquez, M.D.P. (Maria D.P.)|||/items/ff0d8bb2-d9b0-489c-9d52-bd1a40b63be9Garcia-Vence, M. (Maria)|||/items/fd3ba38b-869c-4687-a7a7-f3399700e5ebBravo, S. (Susana B.)|||/items/e01e519b-f836-4fcb-86d7-31112734e8e2da-Silva-Lima, N. (Natalia)|||/items/9e088f99-dea7-42cf-8026-21c1027c1af8Porteiro, B. (Begoña)|||/items/a0469e98-1bfb-4768-ada9-24573be6f1cbCarneiro, C. (Carmen)|||/items/5705da5b-e5cb-48ec-9ec5-746f1fe2c0ecVidal, A. (Anxo)|||/items/a8facbdb-e501-4b94-9e61-fa3244770258Tovar, S. (Sulay)|||/items/5716a149-8ad6-45d3-b30b-4f67d30cd2fbMüller, T.D. (Timo D.)|||/items/e61aad48-a7c8-45a7-b479-6358a9659fa6Ferno, J. (Johan)|||/items/6babd121-81a7-41ca-8d0c-edbea833d10bGuallar, D. (Diana)|||/items/1dc9d5a7-af90-4a94-86a4-9e3e6b3d4058Fidalgo, M. (Miguel)|||/items/35c79a24-3ecd-498b-bc11-3a43ce977d46Sabio, G. (Guadalupe)|||/items/f04ae0a3-ab59-4e44-b814-5e413bd5584dHerzig, S. (Stephan)|||/items/386d0e63-7570-43c0-8777-8098a62b5396Yang, W.H. (Won Ho)|||/items/77c8f762-1c9c-4381-ab12-c79d2e8e209fCho, J.W. (Jin Won)|||/items/32b24e5d-69d2-4de8-821d-139899127fbeMartinez-Chantar, M.L. (María Luz)|||/items/df06120b-2a53-4074-a155-638f899b2ce5Perez-Fernandez, R. (Roman)|||/items/91f47f3e-1252-4e50-8446-0da3888e794dLópez-Yoldi, M. (Miguel)|||/items/d3db8959-5c7f-4257-8a0a-b2374e5da832Dieguez, C. (Carlos)|||/items/54b49b82-82ec-4bb6-9d48-c54fb1d572fbMato, J.M. (José María)|||/items/302dc624-b0d3-4703-90cf-1a97690ebc79Millet, O. (Oscar)|||/items/d6bbd577-a3c4-4f18-9dc5-1686de0e0489Coppari, R. (Roberto)|||/items/0aab48ad-95e3-4a9b-aead-c2edc24d5433Woodhoo, A. (Ashwin)|||/items/a9e90cb2-bac1-43fb-a0b2-5e3409f9c860Frühbeck, G. (Gema)|||/items/7f0b1f72-bc91-4ab0-a3fd-21e9a3fb663bNogueiras, R. (Rubén)|||/items/d6d4c851-6ed5-47d3-9361-c80bbfae88e6P53Metabolic homeostasis of cellsResponse to stressp53 regulates several signaling pathways to maintain the metabolic homeostasis of cells and modulates the cellular response to stress. Deficiency or excess of nutrients causes cellular metabolic stress, and we hypothesized that p53 could be linked to glucose maintenance. We show here that upon starvation hepatic p53 is stabilized by O-GlcNAcylation and plays an essential role in the physiological regulation of glucose homeostasis. More specifically, p53 binds to PCK1 promoter and regulates its transcriptional activation, thereby controlling hepatic glucose production. Mice lacking p53 in the liver show a reduced gluconeogenic response during calorie restriction. Glucagon, adrenaline and glucocorticoids augment protein levels of p53, and administration of these hormones to p53 deficient human hepatocytes and to liver-specific p53 deficient mice fails to increase glucose levels. Moreover, insulin decreases p53 levels, and over-expression of p53 impairs insulin sensitivity. Finally, protein levels of p53, as well as genes responsible of O-GlcNAcylation are elevated in the liver of type 2 diabetic patients and positively correlate with glucose and HOMA-IR. Overall these results indicate that the O-GlcNAcylation of p53 plays an unsuspected key role regulating in vivo glucose homeostasis.Nature Pub. GroupDadun. Depósito Académico Digital Universidad de Navarra20212021-01-0120212021-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10171/114713reponame:Dadun. Depósito Académico Digital de la Universidad de Navarrainstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:dadun.unav.edu:10171/1147132026-06-21T12:47:57Z |
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