SwePub - search: WFRF:(Walton Bernstedt Sophie)

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1.	Bryant, Patrick, et al. (author) Exome sequencing in a Swedish family with PMS2 mutation with varying penetrance of colorectal cancer : investigating the presence of genetic risk modifiers in colorectal cancer risk 2023 In: European Journal of Cancer Prevention. - 0959-8278 .- 1473-5709. ; 32:2, s. 113-118 Journal article (peer-reviewed)abstract Objective Lynch syndrome is caused by germline mutations in the mismatch repair (MMR) genes, such as the PMS2 gene, and is characterised by a familial accumulation of colorectal cancer. The penetrance of cancer in PMS2 carriers is still not fully elucidated as a colorectal cancer risk has been shown to vary between PMS2 carriers, suggesting the presence of risk modifiers.Methods Whole exome sequencing was performed in a Swedish family carrying a PMS2 missense mutation [c.2113G>A, p.(Glu705Lys)]. Thirteen genetic sequence variants were further selected and analysed in a case-control study (724 cases and 711 controls).Results The most interesting variant was an 18 bp deletion in gene BAG1. BAG1 has been linked to colorectal tumour progression with poor prognosis and is thought to promote colorectal tumour cell survival through increased NF-κB activity.Conclusions We conclude the genetic architecture behind the incomplete penetrance of PMS2 is complicated and must be assessed in a genome wide manner using large families and multifactorial analysis.

Bryant, Patrick, et al. (author)
Exome sequencing in a Swedish family with PMS2 mutation with varying penetrance of colorectal cancer : investigating the presence of genetic risk modifiers in colorectal cancer risk
2023
In: European Journal of Cancer Prevention. - 0959-8278 .- 1473-5709. ; 32:2, s. 113-118
Journal article (peer-reviewed)abstract
- Objective Lynch syndrome is caused by germline mutations in the mismatch repair (MMR) genes, such as the PMS2 gene, and is characterised by a familial accumulation of colorectal cancer. The penetrance of cancer in PMS2 carriers is still not fully elucidated as a colorectal cancer risk has been shown to vary between PMS2 carriers, suggesting the presence of risk modifiers.Methods Whole exome sequencing was performed in a Swedish family carrying a PMS2 missense mutation [c.2113G>A, p.(Glu705Lys)]. Thirteen genetic sequence variants were further selected and analysed in a case-control study (724 cases and 711 controls).Results The most interesting variant was an 18 bp deletion in gene BAG1. BAG1 has been linked to colorectal tumour progression with poor prognosis and is thought to promote colorectal tumour cell survival through increased NF-κB activity.Conclusions We conclude the genetic architecture behind the incomplete penetrance of PMS2 is complicated and must be assessed in a genome wide manner using large families and multifactorial analysis.

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