Review Article

Do Alterations in Mitochondrial DNA Play a Role in Breast Carcinogenesis?

Table 1

Association studies of mtDNA variants and breast cancer risk.

Reference S t u d y s u b j e c t s Source of study subjectsMtDNA variant (s) O R ( 9 5 % C I )

Canter et al. [24]48 AA cases, 54 AA controls (USA)Hospital-basedG10398A2.90 (0.61–18.3)
654 AA cases, 605 AA controls (USA)Population-basedG10398A1.60 (1.10–2.31)
879 White cases, 760 White controls (USA)1.03 (0.81–1.31)

Canter et al. [92]AA subjects as in Canter et al. (2005) T 4 2 1 6 C G 1 0 3 9 8 A 3.31(1.07–10.25)

Darvishi et al. [94]124 cases, 273 ethnically matched controls (India)Details not providedG10398A1.73 (1.13–2.66)

Bai et al. [91]156 non-Jewish European-American cases, 260 non-Jewish European-American controls (USA)Cases referred to Molecular Genetics Laboratory for BRCA1/2 testing; controls were individuals referred for genetic testing69 variants tested.
Significant results:
 G9055A 3.03 (1.63–5.63)
 A10398G 1.79 (1.14–2.81)
 T16519C 1.98 (1.25–3.12)
 T3197C 0.31 (0.13–0.75)
 G13708A 0.47 (0.24–0.92)
 Haplotype K 3.30 (1.63–5.63)
 Haplotype U 0.37 (0.19–0.73)

Mosquera-Miguel et al. [95]464 cases, 453 ethnicity-matched controls (continental Spain), 302 cases, 295 ethnicity-matched controls (Canary Islands)Details not provided25 variants testedNone of the variants was associated with altered risk in either study after adjustment for multiple testing

Covarrubias et al. [36]Same subjects as in Bai et al. [91]17 variants tested for all possible 2-way interactions A 1 0 3 9 8 G A12308G ( 𝑃 = . 0 0 4 )
All other interactions NS after control for FWER

Setiawan et al. [97]542 AA cases, 282 AA controls (USA)Population-basedG10398A 1.73 (0.87–3.47)
391 AA cases, 460 AA controls (USA)Multiethnic cohortG10398A 1.08 (0.62–1.86)
524 AA cases, 236 AA controls (USA)Population-basedG10398A 0.81 (0.43–1.51)

Ye et al. [98]1058 Chinese cases, 1129 Chinese controls (China)Population-basedD-loop (CA)n repeat polymorphism:
  (CA)51.00 (reference)
  (CA)41.02 (0.85–1.21)
  (CA)60.84 (0.50–1.41)
  (CA)70.50 (0.27–0.93)
( C A ) 8 - 1 1 1.59 (0.64–3.91)

Czarnecka et al. [93]44 Polish cases, 100 Polish controls (Poland)Clinic-based cases, population-based controlsA10398G 9.51(2.64–33.88)

Pezzotti et al. [96]1561 cases, 2209 controls in Nurses’ Health Study; 678 cases, 669 controls in Women’s Health StudyPopulation-basedA10398G
Nurses’ Health Study1.01 (0.85–1.19)
Women’s Health Study0.94 (0.72–1.22)

A A = African-American; NS = not significant; FWER = familywise error rate
C a n t e r et al. [24] estimates are crude estimates—adjustment for other factors in population-based component did not change them; Darvishi et al. [94] estimates are crude; Bai et al. [91] 𝑃 -values adjusted for familywise error rate.