Differential role of transcription-coupled repair in UVB-induced G2 arrest and apoptosis in mouse epidermis

Marijke Van Oosten, Heggert Rebel, Errol C. Friedberg, Harry Van Steeg, Gijsbertus T J Van Der Horst, Henk J. Van Kranen, Anja Westerman, Albert A. Van Zeeland, Leon H F Mullenders, Frank R. De Gruijl

Research output: Contribution to journalArticle

69 Citations (Scopus)

Abstract

Nucleotide excision repair (NER), apoptosis, and cell-cycle regulation are major defense mechanisms against the carcinogenic effects of UVB light. NER eliminates UVB-induced DNA photolesions via two subpathways: global genome repair (GGR) and transcription-coupled repair (TCR). Defects in NER result in the human disorders xeroderma pigmentosum (XP) and Cockayne syndrome (CS), displaying severe UV sensitivity and in the case of XP, cancer proneness. We investigated the impact of deficiencies in NER subpathways on apoptosis, hyperplasia, and cell cycle progression in the epidermis of UVB-exposed CS group B (Csb(-/-)) mice (no TCR), XP group C (Xpc(-/-)) mice (no GGR), and XP group A (Xpa(-/-)) mice (no TCR and no GGR). On UVB treatment (250 J/m2), Xpa(-/-) and Csb(-/-) mice revealed an extensive apoptotic response in the skin, a blockage of cell cycle progression of epidermal cells, and strong hyperplasia. Interestingly, the absence of this apoptotic response in the skin of wild-type and Xpc(-/-) mice coincided with the ability of epidermal cells to enter the S phase. However, only epidermal cells of Xpc(-/-) mice subsequently became arrested in the G2 phase. Our data demonstrate that TCR (and/or restoration of UVB-inhibited transcription) enables damaged cells to progress through S phase and prevents the induction of apoptosis and hyperplasia. G2 arrest is manifest only under conditions of proficient TCR in combination with deficient GGR, indicating that epidermal cells become arrested in the G2 phase as a result of persisting damage in their genome.

Original languageEnglish (US)
Pages (from-to)11268-11273
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Volume97
Issue number21
StatePublished - Oct 10 2000

Fingerprint

Epidermis
Xeroderma Pigmentosum
Apoptosis
DNA Repair
Genome
Cockayne Syndrome
Hyperplasia
Cell Cycle
G2 Phase
S Phase
Skin
Light
DNA
Neoplasms

ASJC Scopus subject areas

  • Genetics
  • General

Cite this

Van Oosten, M., Rebel, H., Friedberg, E. C., Van Steeg, H., Van Der Horst, G. T. J., Van Kranen, H. J., ... De Gruijl, F. R. (2000). Differential role of transcription-coupled repair in UVB-induced G2 arrest and apoptosis in mouse epidermis. Proceedings of the National Academy of Sciences of the United States of America, 97(21), 11268-11273.

Differential role of transcription-coupled repair in UVB-induced G2 arrest and apoptosis in mouse epidermis. / Van Oosten, Marijke; Rebel, Heggert; Friedberg, Errol C.; Van Steeg, Harry; Van Der Horst, Gijsbertus T J; Van Kranen, Henk J.; Westerman, Anja; Van Zeeland, Albert A.; Mullenders, Leon H F; De Gruijl, Frank R.

In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 97, No. 21, 10.10.2000, p. 11268-11273.

Research output: Contribution to journalArticle

Van Oosten, M, Rebel, H, Friedberg, EC, Van Steeg, H, Van Der Horst, GTJ, Van Kranen, HJ, Westerman, A, Van Zeeland, AA, Mullenders, LHF & De Gruijl, FR 2000, 'Differential role of transcription-coupled repair in UVB-induced G2 arrest and apoptosis in mouse epidermis', Proceedings of the National Academy of Sciences of the United States of America, vol. 97, no. 21, pp. 11268-11273.
Van Oosten, Marijke ; Rebel, Heggert ; Friedberg, Errol C. ; Van Steeg, Harry ; Van Der Horst, Gijsbertus T J ; Van Kranen, Henk J. ; Westerman, Anja ; Van Zeeland, Albert A. ; Mullenders, Leon H F ; De Gruijl, Frank R. / Differential role of transcription-coupled repair in UVB-induced G2 arrest and apoptosis in mouse epidermis. In: Proceedings of the National Academy of Sciences of the United States of America. 2000 ; Vol. 97, No. 21. pp. 11268-11273.
@article{f1c21affe1974a79a331acf406f2343a,
title = "Differential role of transcription-coupled repair in UVB-induced G2 arrest and apoptosis in mouse epidermis",
abstract = "Nucleotide excision repair (NER), apoptosis, and cell-cycle regulation are major defense mechanisms against the carcinogenic effects of UVB light. NER eliminates UVB-induced DNA photolesions via two subpathways: global genome repair (GGR) and transcription-coupled repair (TCR). Defects in NER result in the human disorders xeroderma pigmentosum (XP) and Cockayne syndrome (CS), displaying severe UV sensitivity and in the case of XP, cancer proneness. We investigated the impact of deficiencies in NER subpathways on apoptosis, hyperplasia, and cell cycle progression in the epidermis of UVB-exposed CS group B (Csb(-/-)) mice (no TCR), XP group C (Xpc(-/-)) mice (no GGR), and XP group A (Xpa(-/-)) mice (no TCR and no GGR). On UVB treatment (250 J/m2), Xpa(-/-) and Csb(-/-) mice revealed an extensive apoptotic response in the skin, a blockage of cell cycle progression of epidermal cells, and strong hyperplasia. Interestingly, the absence of this apoptotic response in the skin of wild-type and Xpc(-/-) mice coincided with the ability of epidermal cells to enter the S phase. However, only epidermal cells of Xpc(-/-) mice subsequently became arrested in the G2 phase. Our data demonstrate that TCR (and/or restoration of UVB-inhibited transcription) enables damaged cells to progress through S phase and prevents the induction of apoptosis and hyperplasia. G2 arrest is manifest only under conditions of proficient TCR in combination with deficient GGR, indicating that epidermal cells become arrested in the G2 phase as a result of persisting damage in their genome.",
author = "{Van Oosten}, Marijke and Heggert Rebel and Friedberg, {Errol C.} and {Van Steeg}, Harry and {Van Der Horst}, {Gijsbertus T J} and {Van Kranen}, {Henk J.} and Anja Westerman and {Van Zeeland}, {Albert A.} and Mullenders, {Leon H F} and {De Gruijl}, {Frank R.}",
year = "2000",
month = "10",
day = "10",
language = "English (US)",
volume = "97",
pages = "11268--11273",
journal = "Proceedings of the National Academy of Sciences of the United States of America",
issn = "0027-8424",
number = "21",

}

TY - JOUR

T1 - Differential role of transcription-coupled repair in UVB-induced G2 arrest and apoptosis in mouse epidermis

AU - Van Oosten, Marijke

AU - Rebel, Heggert

AU - Friedberg, Errol C.

AU - Van Steeg, Harry

AU - Van Der Horst, Gijsbertus T J

AU - Van Kranen, Henk J.

AU - Westerman, Anja

AU - Van Zeeland, Albert A.

AU - Mullenders, Leon H F

AU - De Gruijl, Frank R.

PY - 2000/10/10

Y1 - 2000/10/10

N2 - Nucleotide excision repair (NER), apoptosis, and cell-cycle regulation are major defense mechanisms against the carcinogenic effects of UVB light. NER eliminates UVB-induced DNA photolesions via two subpathways: global genome repair (GGR) and transcription-coupled repair (TCR). Defects in NER result in the human disorders xeroderma pigmentosum (XP) and Cockayne syndrome (CS), displaying severe UV sensitivity and in the case of XP, cancer proneness. We investigated the impact of deficiencies in NER subpathways on apoptosis, hyperplasia, and cell cycle progression in the epidermis of UVB-exposed CS group B (Csb(-/-)) mice (no TCR), XP group C (Xpc(-/-)) mice (no GGR), and XP group A (Xpa(-/-)) mice (no TCR and no GGR). On UVB treatment (250 J/m2), Xpa(-/-) and Csb(-/-) mice revealed an extensive apoptotic response in the skin, a blockage of cell cycle progression of epidermal cells, and strong hyperplasia. Interestingly, the absence of this apoptotic response in the skin of wild-type and Xpc(-/-) mice coincided with the ability of epidermal cells to enter the S phase. However, only epidermal cells of Xpc(-/-) mice subsequently became arrested in the G2 phase. Our data demonstrate that TCR (and/or restoration of UVB-inhibited transcription) enables damaged cells to progress through S phase and prevents the induction of apoptosis and hyperplasia. G2 arrest is manifest only under conditions of proficient TCR in combination with deficient GGR, indicating that epidermal cells become arrested in the G2 phase as a result of persisting damage in their genome.

AB - Nucleotide excision repair (NER), apoptosis, and cell-cycle regulation are major defense mechanisms against the carcinogenic effects of UVB light. NER eliminates UVB-induced DNA photolesions via two subpathways: global genome repair (GGR) and transcription-coupled repair (TCR). Defects in NER result in the human disorders xeroderma pigmentosum (XP) and Cockayne syndrome (CS), displaying severe UV sensitivity and in the case of XP, cancer proneness. We investigated the impact of deficiencies in NER subpathways on apoptosis, hyperplasia, and cell cycle progression in the epidermis of UVB-exposed CS group B (Csb(-/-)) mice (no TCR), XP group C (Xpc(-/-)) mice (no GGR), and XP group A (Xpa(-/-)) mice (no TCR and no GGR). On UVB treatment (250 J/m2), Xpa(-/-) and Csb(-/-) mice revealed an extensive apoptotic response in the skin, a blockage of cell cycle progression of epidermal cells, and strong hyperplasia. Interestingly, the absence of this apoptotic response in the skin of wild-type and Xpc(-/-) mice coincided with the ability of epidermal cells to enter the S phase. However, only epidermal cells of Xpc(-/-) mice subsequently became arrested in the G2 phase. Our data demonstrate that TCR (and/or restoration of UVB-inhibited transcription) enables damaged cells to progress through S phase and prevents the induction of apoptosis and hyperplasia. G2 arrest is manifest only under conditions of proficient TCR in combination with deficient GGR, indicating that epidermal cells become arrested in the G2 phase as a result of persisting damage in their genome.

UR - http://www.scopus.com/inward/record.url?scp=12944300387&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=12944300387&partnerID=8YFLogxK

M3 - Article

VL - 97

SP - 11268

EP - 11273

JO - Proceedings of the National Academy of Sciences of the United States of America

JF - Proceedings of the National Academy of Sciences of the United States of America

SN - 0027-8424

IS - 21

ER -