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Table 2 Cohort characteristics and pathogenic BRAC1 and BRAC2 mutation in unselected breast cancer cases in Central and South American populations

From: Mutations in BRCA1, BRCA2 and other breast and ovarian cancer susceptibility genes in Central and South American populations

Country

Cohort size

Inclusion criteria

Number of mutation detected

Pathogenic mutation in BC patients

Recurrent mutation (frequency %)

Large genomic rearrangements (frequency %)

References

BRCA1

BRCA2

BRCA1

BRCA2

BRCA1

BRCA2

BRCA1

BRCA2

Exon

Mutation

Exon

Mutation

Brazil

402

Unselected, but all of the patients postive for a BRCA mutation had a family history of BC

2

2

11

c.3228_3229delAG

11

c.5946delT

c.5266dupC (1.2%)

c.6405_6409delCTTAA (0.5%)

NS

NS

Gomes et al. [37]

20

c.5266dupC

11

c.640_6409delCTTAA

Colombiab

766

Unselected for family history

2

1

11

c.3331_3334delCAAG

c.5123C>A

11

c.2808_2811delACAA

c.3331_3334de lCAAG (1.6%)

c.5123C>A (1.3%)

c.2808_2811delACAA (1.3%)

NS

NS

Torres et al. [44]

Colombiac

96

Unselected for family history

3

2

11

c.3331_3334de lCAAG

11

c.6024dupG

c.3331_3334de lCAAG (11.4)

ND

NS

NS

Rodrı́guez et al. [42]

11

c.1674_1674de lA

11

c.6024dupG

18

c.5123C>A

Colombia

244

Unselected for family history

2

1

11

c.3331_3334de lCAAG

11

c.5616_5620de lAGTAA

ND

ND

NS

NS

Hernández et al. [43]

18

c.5123C>A

Mexico

188

Unselected for family history

14

6

2

70insAG

10

1803insA

ND

ND

ex9-12del (6.9%)

ND

Villarreal-garza et al. [51]

2

c.68_69de lAG

11

2900de lCT

ex8-9dup (1.1%)

5

c.211A>G

11

C.6024dupG

ex18-19del (1.1%)

5

c.212+1G>A

11

6244de lG

ex8-10del

11

c.798_799de lTT

11

c.6486_6489de lACAA

11

803de lA

25

c.9463_9467de I5in8

11

c.815_824dupAGCCATGTGG

11

c.2806_2809de lGATA

11

c.3759_3760de lTGAG

11

c.3858_3861de lTGAG

11

c.4065_4068de lTCAA

13

c.4327C>T

18

c.5095C>T

18

c.5123C>A

Mexico

810

Unselected [85.3% with sporadic BC and 67.7% with early-onset BC (≤ 50 years of age)]

8

11

9_12

c.548?_4185?de l

10

c.1796-1800de lTTTAT

c.548?_4185?de I(1%)

c.1796-1800de lTTTAT(0.37%)

NS

NS

Torres-Mejia et al. [50]

11

c.1016-1017insA

11

c.2808_2811de lACAA

c.2433de IC(0.25%)

c.4111C>T

11

c.2071-2071de lA

11

2971de I5

c.4327C>T (0.25%)

11

c.2296-2297de lAG

11

c.3264_3265insT

c.5123C>A (0.5%)

11

c.2433de lC

11

c.4111C>T

 

11

c.3598C>T

11

4321insAA

13

c.4327C>T

11

4534de lAT

18

c.5123C>A

11

c.5542de lA

11

11

11

Perua

266

Unselected for family history

4

1

2

c.68_69de lAG

11

c.2808_2811de lACAA

c.68_69de lAG (2.6%)

c.2808_2811de lACAA (0.75%)

NS

NS

Abugattas et al. [52]

11

c.815_824dupAGCCATGTGG

  

c.1961_1962de lA (0.75%)

11

c.1961_1962de lA

11

c.3759_3706de lTA

Perua

124

Unselected, but 39.39% of patients had a positive family history of BC and/or OC

5

2

2

11

11

17

c211A>G

c.4041_4042del

c.4065_4068de lTCAA

c.5074+1G>T

c.5091_5092del

11

16

c2455C>T

c.7673_7674de l

ND

ND

Del exon 18–19

Del exon 8–13

ND

González-Rivera et al. [53]

  1. ND not detected, NS not studied, BC breast cancer
  2. aA panel of BRCA1 and BRCA2 mutation wa used
  3. bOnly mutations previously described by Torres et al. [41] were studied
  4. cA panel of 96 Hispanic BRCA mutation was used