Ribosomal DNA instability: An evolutionary conserved fuel for inflammaging
Across eukaryotes, ribosomal DNA (rDNA) loci are characterized by intrinsic genomic instability due to their repetitive nature and their base composition that facilitate DNA double strand breaks and RNA:DNA hybrids formation. In the yeast, ribosomal DNA instability affects lifespan via the formation...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Storci, Gianluca [verfasserIn] Bacalini, Maria Giulia [verfasserIn] Bonifazi, Francesca [verfasserIn] Garagnani, Paolo [verfasserIn] De Carolis, Sabrina [verfasserIn] Salvioli, Stefano [verfasserIn] Olivieri, Fabiola [verfasserIn] Bonafè, Massimiliano [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2020 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Ageing research reviews - Oxford [u.a.] : Elsevier, 2002, 58 |
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| Übergeordnetes Werk: |
volume:58 |
| DOI / URN: |
10.1016/j.arr.2020.101018 |
|---|
| Katalog-ID: |
ELV003711064 |
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| 245 | 1 | 0 | |a Ribosomal DNA instability: An evolutionary conserved fuel for inflammaging |
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| 520 | |a Across eukaryotes, ribosomal DNA (rDNA) loci are characterized by intrinsic genomic instability due to their repetitive nature and their base composition that facilitate DNA double strand breaks and RNA:DNA hybrids formation. In the yeast, ribosomal DNA instability affects lifespan via the formation of extrachromosomal rDNA circles (ERC) that accrue into aged cells. In humans, rDNA instability has long been reported in a variety of progeric syndromes caused by the dysfunction of DNA helicases, but its role in physiological aging and longevity still needs to be clarified. Here we propose that rDNA instability leads to the activation of innate immunity and inflammation via the interaction with the cytoplasmic DNA sensing machinery. Owing to the recent clarified role of cytoplasmic DNA in the pro-inflammatory phenotype of senescent cells, we hypothesize that the accrual of rDNA derived molecules (i.e. ERC and RNA:DNA hybrids) may have a role in aging by contributing to inflammaging i.e. the systemic pro-inflammatory drift that associates with the onset of geriatric syndromes and age related dysfunctions in humans. | ||
| 650 | 4 | |a Extrachromosomal rDNA circle (ERC) | |
| 650 | 4 | |a Ribosomal DNA (rDNA) | |
| 650 | 4 | |a Inflammaging | |
| 650 | 4 | |a RNA | |
| 650 | 4 | |a DNA hybrid | |
| 700 | 1 | |a Bacalini, Maria Giulia |e verfasserin |4 aut | |
| 700 | 1 | |a Bonifazi, Francesca |e verfasserin |4 aut | |
| 700 | 1 | |a Garagnani, Paolo |e verfasserin |4 aut | |
| 700 | 1 | |a De Carolis, Sabrina |e verfasserin |4 aut | |
| 700 | 1 | |a Salvioli, Stefano |e verfasserin |4 aut | |
| 700 | 1 | |a Olivieri, Fabiola |e verfasserin |4 aut | |
| 700 | 1 | |a Bonafè, Massimiliano |e verfasserin |4 aut | |
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10.1016/j.arr.2020.101018 doi (DE-627)ELV003711064 (ELSEVIER)S1568-1637(19)30219-3 DE-627 ger DE-627 rda eng 610 DE-600 44.68 bkl Storci, Gianluca verfasserin aut Ribosomal DNA instability: An evolutionary conserved fuel for inflammaging 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Across eukaryotes, ribosomal DNA (rDNA) loci are characterized by intrinsic genomic instability due to their repetitive nature and their base composition that facilitate DNA double strand breaks and RNA:DNA hybrids formation. In the yeast, ribosomal DNA instability affects lifespan via the formation of extrachromosomal rDNA circles (ERC) that accrue into aged cells. In humans, rDNA instability has long been reported in a variety of progeric syndromes caused by the dysfunction of DNA helicases, but its role in physiological aging and longevity still needs to be clarified. Here we propose that rDNA instability leads to the activation of innate immunity and inflammation via the interaction with the cytoplasmic DNA sensing machinery. Owing to the recent clarified role of cytoplasmic DNA in the pro-inflammatory phenotype of senescent cells, we hypothesize that the accrual of rDNA derived molecules (i.e. ERC and RNA:DNA hybrids) may have a role in aging by contributing to inflammaging i.e. the systemic pro-inflammatory drift that associates with the onset of geriatric syndromes and age related dysfunctions in humans. Extrachromosomal rDNA circle (ERC) Ribosomal DNA (rDNA) Inflammaging RNA DNA hybrid Bacalini, Maria Giulia verfasserin aut Bonifazi, Francesca verfasserin aut Garagnani, Paolo verfasserin aut De Carolis, Sabrina verfasserin aut Salvioli, Stefano verfasserin aut Olivieri, Fabiola verfasserin aut Bonafè, Massimiliano verfasserin aut Enthalten in Ageing research reviews Oxford [u.a.] : Elsevier, 2002 58 Online-Ressource (DE-627)360307752 (DE-600)2099320-1 (DE-576)255635648 1872-9649 nnns volume:58 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 44.68 Gerontologie Geriatrie AR 58 |
| spelling |
10.1016/j.arr.2020.101018 doi (DE-627)ELV003711064 (ELSEVIER)S1568-1637(19)30219-3 DE-627 ger DE-627 rda eng 610 DE-600 44.68 bkl Storci, Gianluca verfasserin aut Ribosomal DNA instability: An evolutionary conserved fuel for inflammaging 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Across eukaryotes, ribosomal DNA (rDNA) loci are characterized by intrinsic genomic instability due to their repetitive nature and their base composition that facilitate DNA double strand breaks and RNA:DNA hybrids formation. In the yeast, ribosomal DNA instability affects lifespan via the formation of extrachromosomal rDNA circles (ERC) that accrue into aged cells. In humans, rDNA instability has long been reported in a variety of progeric syndromes caused by the dysfunction of DNA helicases, but its role in physiological aging and longevity still needs to be clarified. Here we propose that rDNA instability leads to the activation of innate immunity and inflammation via the interaction with the cytoplasmic DNA sensing machinery. Owing to the recent clarified role of cytoplasmic DNA in the pro-inflammatory phenotype of senescent cells, we hypothesize that the accrual of rDNA derived molecules (i.e. ERC and RNA:DNA hybrids) may have a role in aging by contributing to inflammaging i.e. the systemic pro-inflammatory drift that associates with the onset of geriatric syndromes and age related dysfunctions in humans. Extrachromosomal rDNA circle (ERC) Ribosomal DNA (rDNA) Inflammaging RNA DNA hybrid Bacalini, Maria Giulia verfasserin aut Bonifazi, Francesca verfasserin aut Garagnani, Paolo verfasserin aut De Carolis, Sabrina verfasserin aut Salvioli, Stefano verfasserin aut Olivieri, Fabiola verfasserin aut Bonafè, Massimiliano verfasserin aut Enthalten in Ageing research reviews Oxford [u.a.] : Elsevier, 2002 58 Online-Ressource (DE-627)360307752 (DE-600)2099320-1 (DE-576)255635648 1872-9649 nnns volume:58 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 44.68 Gerontologie Geriatrie AR 58 |
| allfields_unstemmed |
10.1016/j.arr.2020.101018 doi (DE-627)ELV003711064 (ELSEVIER)S1568-1637(19)30219-3 DE-627 ger DE-627 rda eng 610 DE-600 44.68 bkl Storci, Gianluca verfasserin aut Ribosomal DNA instability: An evolutionary conserved fuel for inflammaging 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Across eukaryotes, ribosomal DNA (rDNA) loci are characterized by intrinsic genomic instability due to their repetitive nature and their base composition that facilitate DNA double strand breaks and RNA:DNA hybrids formation. In the yeast, ribosomal DNA instability affects lifespan via the formation of extrachromosomal rDNA circles (ERC) that accrue into aged cells. In humans, rDNA instability has long been reported in a variety of progeric syndromes caused by the dysfunction of DNA helicases, but its role in physiological aging and longevity still needs to be clarified. Here we propose that rDNA instability leads to the activation of innate immunity and inflammation via the interaction with the cytoplasmic DNA sensing machinery. Owing to the recent clarified role of cytoplasmic DNA in the pro-inflammatory phenotype of senescent cells, we hypothesize that the accrual of rDNA derived molecules (i.e. ERC and RNA:DNA hybrids) may have a role in aging by contributing to inflammaging i.e. the systemic pro-inflammatory drift that associates with the onset of geriatric syndromes and age related dysfunctions in humans. Extrachromosomal rDNA circle (ERC) Ribosomal DNA (rDNA) Inflammaging RNA DNA hybrid Bacalini, Maria Giulia verfasserin aut Bonifazi, Francesca verfasserin aut Garagnani, Paolo verfasserin aut De Carolis, Sabrina verfasserin aut Salvioli, Stefano verfasserin aut Olivieri, Fabiola verfasserin aut Bonafè, Massimiliano verfasserin aut Enthalten in Ageing research reviews Oxford [u.a.] : Elsevier, 2002 58 Online-Ressource (DE-627)360307752 (DE-600)2099320-1 (DE-576)255635648 1872-9649 nnns volume:58 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 44.68 Gerontologie Geriatrie AR 58 |
| allfieldsGer |
10.1016/j.arr.2020.101018 doi (DE-627)ELV003711064 (ELSEVIER)S1568-1637(19)30219-3 DE-627 ger DE-627 rda eng 610 DE-600 44.68 bkl Storci, Gianluca verfasserin aut Ribosomal DNA instability: An evolutionary conserved fuel for inflammaging 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Across eukaryotes, ribosomal DNA (rDNA) loci are characterized by intrinsic genomic instability due to their repetitive nature and their base composition that facilitate DNA double strand breaks and RNA:DNA hybrids formation. In the yeast, ribosomal DNA instability affects lifespan via the formation of extrachromosomal rDNA circles (ERC) that accrue into aged cells. In humans, rDNA instability has long been reported in a variety of progeric syndromes caused by the dysfunction of DNA helicases, but its role in physiological aging and longevity still needs to be clarified. Here we propose that rDNA instability leads to the activation of innate immunity and inflammation via the interaction with the cytoplasmic DNA sensing machinery. Owing to the recent clarified role of cytoplasmic DNA in the pro-inflammatory phenotype of senescent cells, we hypothesize that the accrual of rDNA derived molecules (i.e. ERC and RNA:DNA hybrids) may have a role in aging by contributing to inflammaging i.e. the systemic pro-inflammatory drift that associates with the onset of geriatric syndromes and age related dysfunctions in humans. Extrachromosomal rDNA circle (ERC) Ribosomal DNA (rDNA) Inflammaging RNA DNA hybrid Bacalini, Maria Giulia verfasserin aut Bonifazi, Francesca verfasserin aut Garagnani, Paolo verfasserin aut De Carolis, Sabrina verfasserin aut Salvioli, Stefano verfasserin aut Olivieri, Fabiola verfasserin aut Bonafè, Massimiliano verfasserin aut Enthalten in Ageing research reviews Oxford [u.a.] : Elsevier, 2002 58 Online-Ressource (DE-627)360307752 (DE-600)2099320-1 (DE-576)255635648 1872-9649 nnns volume:58 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 44.68 Gerontologie Geriatrie AR 58 |
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10.1016/j.arr.2020.101018 doi (DE-627)ELV003711064 (ELSEVIER)S1568-1637(19)30219-3 DE-627 ger DE-627 rda eng 610 DE-600 44.68 bkl Storci, Gianluca verfasserin aut Ribosomal DNA instability: An evolutionary conserved fuel for inflammaging 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Across eukaryotes, ribosomal DNA (rDNA) loci are characterized by intrinsic genomic instability due to their repetitive nature and their base composition that facilitate DNA double strand breaks and RNA:DNA hybrids formation. In the yeast, ribosomal DNA instability affects lifespan via the formation of extrachromosomal rDNA circles (ERC) that accrue into aged cells. In humans, rDNA instability has long been reported in a variety of progeric syndromes caused by the dysfunction of DNA helicases, but its role in physiological aging and longevity still needs to be clarified. Here we propose that rDNA instability leads to the activation of innate immunity and inflammation via the interaction with the cytoplasmic DNA sensing machinery. Owing to the recent clarified role of cytoplasmic DNA in the pro-inflammatory phenotype of senescent cells, we hypothesize that the accrual of rDNA derived molecules (i.e. ERC and RNA:DNA hybrids) may have a role in aging by contributing to inflammaging i.e. the systemic pro-inflammatory drift that associates with the onset of geriatric syndromes and age related dysfunctions in humans. Extrachromosomal rDNA circle (ERC) Ribosomal DNA (rDNA) Inflammaging RNA DNA hybrid Bacalini, Maria Giulia verfasserin aut Bonifazi, Francesca verfasserin aut Garagnani, Paolo verfasserin aut De Carolis, Sabrina verfasserin aut Salvioli, Stefano verfasserin aut Olivieri, Fabiola verfasserin aut Bonafè, Massimiliano verfasserin aut Enthalten in Ageing research reviews Oxford [u.a.] : Elsevier, 2002 58 Online-Ressource (DE-627)360307752 (DE-600)2099320-1 (DE-576)255635648 1872-9649 nnns volume:58 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 44.68 Gerontologie Geriatrie AR 58 |
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Ribosomal DNA instability: An evolutionary conserved fuel for inflammaging |
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Ribosomal DNA instability: An evolutionary conserved fuel for inflammaging |
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Storci, Gianluca |
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Storci, Gianluca Bacalini, Maria Giulia Bonifazi, Francesca Garagnani, Paolo De Carolis, Sabrina Salvioli, Stefano Olivieri, Fabiola Bonafè, Massimiliano |
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ribosomal dna instability: an evolutionary conserved fuel for inflammaging |
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Ribosomal DNA instability: An evolutionary conserved fuel for inflammaging |
| abstract |
Across eukaryotes, ribosomal DNA (rDNA) loci are characterized by intrinsic genomic instability due to their repetitive nature and their base composition that facilitate DNA double strand breaks and RNA:DNA hybrids formation. In the yeast, ribosomal DNA instability affects lifespan via the formation of extrachromosomal rDNA circles (ERC) that accrue into aged cells. In humans, rDNA instability has long been reported in a variety of progeric syndromes caused by the dysfunction of DNA helicases, but its role in physiological aging and longevity still needs to be clarified. Here we propose that rDNA instability leads to the activation of innate immunity and inflammation via the interaction with the cytoplasmic DNA sensing machinery. Owing to the recent clarified role of cytoplasmic DNA in the pro-inflammatory phenotype of senescent cells, we hypothesize that the accrual of rDNA derived molecules (i.e. ERC and RNA:DNA hybrids) may have a role in aging by contributing to inflammaging i.e. the systemic pro-inflammatory drift that associates with the onset of geriatric syndromes and age related dysfunctions in humans. |
| abstractGer |
Across eukaryotes, ribosomal DNA (rDNA) loci are characterized by intrinsic genomic instability due to their repetitive nature and their base composition that facilitate DNA double strand breaks and RNA:DNA hybrids formation. In the yeast, ribosomal DNA instability affects lifespan via the formation of extrachromosomal rDNA circles (ERC) that accrue into aged cells. In humans, rDNA instability has long been reported in a variety of progeric syndromes caused by the dysfunction of DNA helicases, but its role in physiological aging and longevity still needs to be clarified. Here we propose that rDNA instability leads to the activation of innate immunity and inflammation via the interaction with the cytoplasmic DNA sensing machinery. Owing to the recent clarified role of cytoplasmic DNA in the pro-inflammatory phenotype of senescent cells, we hypothesize that the accrual of rDNA derived molecules (i.e. ERC and RNA:DNA hybrids) may have a role in aging by contributing to inflammaging i.e. the systemic pro-inflammatory drift that associates with the onset of geriatric syndromes and age related dysfunctions in humans. |
| abstract_unstemmed |
Across eukaryotes, ribosomal DNA (rDNA) loci are characterized by intrinsic genomic instability due to their repetitive nature and their base composition that facilitate DNA double strand breaks and RNA:DNA hybrids formation. In the yeast, ribosomal DNA instability affects lifespan via the formation of extrachromosomal rDNA circles (ERC) that accrue into aged cells. In humans, rDNA instability has long been reported in a variety of progeric syndromes caused by the dysfunction of DNA helicases, but its role in physiological aging and longevity still needs to be clarified. Here we propose that rDNA instability leads to the activation of innate immunity and inflammation via the interaction with the cytoplasmic DNA sensing machinery. Owing to the recent clarified role of cytoplasmic DNA in the pro-inflammatory phenotype of senescent cells, we hypothesize that the accrual of rDNA derived molecules (i.e. ERC and RNA:DNA hybrids) may have a role in aging by contributing to inflammaging i.e. the systemic pro-inflammatory drift that associates with the onset of geriatric syndromes and age related dysfunctions in humans. |
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| title_short |
Ribosomal DNA instability: An evolutionary conserved fuel for inflammaging |
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Bacalini, Maria Giulia Bonifazi, Francesca Garagnani, Paolo De Carolis, Sabrina Salvioli, Stefano Olivieri, Fabiola Bonafè, Massimiliano |
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