Regulates Tissue-Specific Mitochondrial DNA Segregation
Mitochondrial DNA (mtDNA) sequence variants segregate in mutation and tissue-specific manners, but the mechanisms remain unknown. The segregation pattern of pathogenic mtDNA mutations is a major determinant of the onset and severity of disease. Using a heteroplasmic mouse model, we demonstrate that Gimap3, an outer mitochondrial membrane GTPase, is a critical regulator of this process in leukocytes. Gimap3 is important for T cell development and survival, suggesting that leukocyte survival may be a key factor in the genetic regulation of mtDNA sequence variants and in modulating human mitochondrial diseases.
Vyšlo v časopise:
Regulates Tissue-Specific Mitochondrial DNA Segregation. PLoS Genet 6(10): e32767. doi:10.1371/journal.pgen.1001161
Kategorie:
Research Article
prolekare.web.journal.doi_sk:
https://doi.org/10.1371/journal.pgen.1001161
Souhrn
Mitochondrial DNA (mtDNA) sequence variants segregate in mutation and tissue-specific manners, but the mechanisms remain unknown. The segregation pattern of pathogenic mtDNA mutations is a major determinant of the onset and severity of disease. Using a heteroplasmic mouse model, we demonstrate that Gimap3, an outer mitochondrial membrane GTPase, is a critical regulator of this process in leukocytes. Gimap3 is important for T cell development and survival, suggesting that leukocyte survival may be a key factor in the genetic regulation of mtDNA sequence variants and in modulating human mitochondrial diseases.
Zdroje
1. TaylorRW
TurnbullDM
2005 Mitochondrial DNA mutations in human disease. Nat Rev Genet 6 389 402
2. WaiT
TeoliD
ShoubridgeEA
2008 The mitochondrial DNA genetic bottleneck results from replication of a subpopulation of genomes. Nat Genet 40 1484 1488
3. CreeLM
SamuelsDC
de Sousa LopesSC
RajasimhaHK
WonnapinijP
2008 A reduction of mitochondrial DNA molecules during embryogenesis explains the rapid segregation of genotypes. Nat Genet 40 249 254
4. ChinneryPF
SamuelsDC
1999 Relaxed replication of mtDNA: A model with implications for the expression of disease. Am J Hum Genet 64 1158 1165
5. HayashiJ
OhtaS
KikuchiA
TakemitsuM
GotoY
1991 Introduction of disease-related mitochondrial DNA deletions into HeLa cells lacking mitochondrial DNA results in mitochondrial dysfunction. Proc Natl Acad Sci U S A 88 10614 10618
6. BouletL
KarpatiG
ShoubridgeEA
1992 Distribution and threshold expression of the tRNA(Lys) mutation in skeletal muscle of patients with myoclonic epilepsy and ragged-red fibers (MERRF). Am J Hum Genet 51 1187 1200
7. ChinneryPF
ThorburnDR
SamuelsDC
WhiteSL
DahlHM
2000 The inheritance of mitochondrial DNA heteroplasmy: random drift, selection or both? Trends Genet 16 500 505
8. LarssonNG
HolmeE
KristianssonB
OldforsA
TuliniusM
1990 Progressive increase of the mutated mitochondrial DNA fraction in Kearns-Sayre syndrome. Pediatr Res 28 131 136
9. KawakamiY
SakutaR
HashimotoK
FujinoO
FujitaT
1994 Mitochondrial myopathy with progressive decrease in mitochondrial tRNA(Leu)(UUR) mutant genomes. Ann Neurol 35 370 373
10. DunbarDR
MooniePA
JacobsHT
HoltIJ
1995 Different cellular backgrounds confer a marked advantage to either mutant or wild-type mitochondrial genomes. Proc Natl Acad Sci U S A 92 6562 6566
11. FuK
HartlenR
JohnsT
GengeA
KarpatiG
1996 A novel heteroplasmic tRNAleu(CUN) mtDNA point mutation in a sporadic patient with mitochondrial encephalomyopathy segregates rapidly in skeletal muscle and suggests an approach to therapy. Hum Mol Genet 5 1835 1840
12. WeberK
WilsonJN
TaylorL
BrierleyE
JohnsonMA
1997 A new mtDNA mutation showing accumulation with time and restriction to skeletal muscle. Am J Hum Genet 60 373 380
13. ChinneryPF
HowellN
LightowlersRN
TurnbullDM
1997 Molecular pathology of MELAS and MERRF. The relationship between mutation load and clinical phenotypes. Brain 120 Pt 10 1713 1721
14. ChinneryPF
ZwijnenburgPJ
WalkerM
HowellN
TaylorRW
1999 Nonrandom tissue distribution of mutant mtDNA. Am J Med Genet 85 498 501
15. RahmanS
PoultonJ
MarchingtonD
SuomalainenA
2001 Decrease of 3243 A–G mtDNA mutation from blood in MELAS syndrome: a longitudinal study. Am J Hum Genet 68 238 240
16. PyleA
TaylorRW
DurhamSE
DeschauerM
SchaeferAM
2007 Depletion of mitochondrial DNA in leucocytes harbouring the 3243A->G mtDNA mutation. J Med Genet 44 69 74
17. RajasimhaHK
ChinneryPF
SamuelsDC
2008 Selection against pathogenic mtDNA mutations in a stem cell population leads to the loss of the 3243A–>G mutation in blood. Am J Hum Genet 82 333 343
18. JenuthJP
PetersonAC
FuK
ShoubridgeEA
1996 Random genetic drift in the female germline explains the rapid segregation of mammalian mitochondrial DNA. Nat Genet 14 146 151
19. JenuthJP
PetersonAC
ShoubridgeEA
1997 Tissue-specific selection for different mtDNA genotypes in heteroplasmic mice. Nat Genet 16 93 95
20. BattersbyBJ
ShoubridgeEA
2001 Selection of a mtDNA sequence variant in hepatocytes of heteroplasmic mice is not due to differences in respiratory chain function or efficiency of replication. Hum Mol Genet 10 2469 2479
21. BattersbyBJ
RedpathME
ShoubridgeEA
2005 Mitochondrial DNA segregation in hematopoietic lineages does not depend on MHC presentation of mitochondrially encoded peptides. Hum Mol Genet 14 2587 2594
22. BattersbyBJ
Loredo-OstiJC
ShoubridgeEA
2003 Nuclear genetic control of mitochondrial DNA segregation. Nat Genet 33 183 186
23. AbiolaO
AngelJM
AvnerP
BachmanovAA
BelknapJK
2003 The nature and identification of quantitative trait loci: a community's view. Nat Rev Genet 4 911 916
24. Moreno-LoshuertosR
Acin-PerezR
Fernandez-SilvaP
MovillaN
Perez-MartosA
2006 Differences in reactive oxygen species production explain the phenotypes associated with common mouse mitochondrial DNA variants. Nat Genet 38 1261 1268
25. KruckenJ
SchroetelRM
MullerIU
SaidaniN
MarinovskiP
2004 Comparative analysis of the human gimap gene cluster encoding a novel GTPase family. Gene 341 291 304
26. DaheronL
ZenzT
SiracusaLD
BrennerC
CalabrettaB
2001 Molecular cloning of Ian4: a BCR/ABL-induced gene that encodes an outer membrane mitochondrial protein with GTP-binding activity. Nucleic Acids Res 29 1308 1316
27. NittaT
NasreenM
SeikeT
GojiA
OhigashiI
2006 IAN family critically regulates survival and development of T lymphocytes. PLoS Biol 4 e103 doi:10.1371/journal.pbio.0040103
28. NittaT
TakahamaY
2007 The lymphocyte guard-IANs: regulation of lymphocyte survival by IAN/GIMAP family proteins. Trends Immunol 28 58 65
29. MacMurrayAJ
MoralejoDH
KwitekAE
RutledgeEA
Van YserlooB
2002 Lymphopenia in the BB rat model of type 1 diabetes is due to a mutation in a novel immune-associated nucleotide (Ian)-related gene. Genome Res 12 1029 1039
30. SchulteisRD
ChuH
DaiX
ChenY
EdwardsB
2008 Impaired survival of peripheral T cells, disrupted NK/NKT cell development, and liver failure in mice lacking Gimap5. Blood 112 4905 4914
31. LovelandB
WangCR
YonekawaH
HermelE
LindahlKF
1990 Maternally transmitted histocompatibility antigen of mice: a hydrophobic peptide of a mitochondrially encoded protein. Cell 60 971 980
32. ShawarSM
VyasJM
RodgersJR
CookRG
RichRR
1991 Specialized functions of major histocompatibility complex class I molecules. II. Hmt binds N-formylated peptides of mitochondrial and prokaryotic origin. J Exp Med 174 941 944
33. HaynesCM
YangY
BlaisSP
NeubertTA
RonD
2010 The matrix peptide exporter HAF-1 signals a mitochondrial UPR by activating the transcription factor ZC376.7 in C. elegans. Mol Cell 37 529 540
34. YoungL
LeonhardK
TatsutaT
TrowsdaleJ
LangerT
2001 Role of the ABC transporter Mdl1 in peptide export from mitochondria. Science 291 2135 2138
35. PeregoM
1997 A peptide export-import control circuit modulating bacterial development regulates protein phosphatases of the phosphorelay. Proc Natl Acad Sci U S A 94 8612 8617
Štítky
Genetika Reprodukčná medicínaČlánok vyšiel v časopise
PLOS Genetics
2010 Číslo 10
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