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| Gene | POLE |
| Variant | F367S |
| Impact List | missense |
| Protein Effect | loss of function |
| Gene Variant Descriptions | POLE F367S lies within the exonuclease domain of the Pole protein (PMID: 29352080). F367S results in reduced exonuclease activity and increased replication error rates compared to wild-type Pole in in vitro assays (PMID: 29352080, PMID: 25228659). |
| Associated Drug Resistance | |
| Category Variants Paths |
POLE mutant POLE inact mut POLE F367S |
| Transcript | NM_006231.4 |
| gDNA | chr12:g.132675741A>G |
| cDNA | c.1100T>C |
| Protein | p.F367S |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |
| Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
|---|---|---|---|---|---|
| XM_011534795.3 | chr12:g.132675741A>G | c.1100T>C | p.F367S | RefSeq | GRCh38/hg38 |
| XM_011534799.2 | chr12:g.132675741A>G | c.1100T>C | p.F367S | RefSeq | GRCh38/hg38 |
| XM_047429018.1 | chr12:g.132675741A>G | c.1100T>C | p.F367S | RefSeq | GRCh38/hg38 |
| XM_011534795.4 | chr12:g.132675741A>G | c.1100T>C | p.F367S | RefSeq | GRCh38/hg38 |
| NM_006231.4 | chr12:g.132675741A>G | c.1100T>C | p.F367S | RefSeq | GRCh38/hg38 |
| XM_011534799.3 | chr12:g.132675741A>G | c.1100T>C | p.F367S | RefSeq | GRCh38/hg38 |
| XM_011534800 | chr12:g.132675741A>G | c.1100T>C | p.F367S | RefSeq | GRCh38/hg38 |
| NM_006231 | chr12:g.132675741A>G | c.1100T>C | p.F367S | RefSeq | GRCh38/hg38 |
| XM_011534795 | chr12:g.132675741A>G | c.1100T>C | p.F367S | RefSeq | GRCh38/hg38 |
| XM_011534799 | chr12:g.132675741A>G | c.1100T>C | p.F367S | RefSeq | GRCh38/hg38 |
| NM_006231.3 | chr12:g.132675741A>G | c.1100T>C | p.F367S | RefSeq | GRCh38/hg38 |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|---|---|---|---|---|---|---|
| POLE inact mut | Advanced Solid Tumor | predicted - sensitive | Nivolumab | Case Reports/Case Series | Actionable | In a Phase II trial, Opdivo (nivolumab) resulted in an objective response rate (ORR) of 38% (7/19; all partial responses) and a disease control rate (DCR) of 58% (11/19) at 12 weeks in patients with advanced solid tumors harboring a POLE mutation, and among assessable patients with an inactivating POLE mutation, along with high tumor mutational burden, treatment resulted in an ORR of 46% (5/11) and a DCR of 73% (8/11) (PMID: 35398880; NCT03012581). | 35398880 |
| POLE inact mut | colorectal cancer | predicted - sensitive | unspecified immune checkpoint inhibitor | Clinical Study - Cohort | Actionable | In a clinical study, immunotherapy resulted in improved clinical benefit in patients with metastatic colorectal cancer harboring POLE inactivating mutations (n=7, 3 complete responses, 3 partial responses, 1 stable disease (SD)) and durable response (remained on therapy with median follow up of 36 months) compared to microsatellite stable (MSS) patients harboring non-loss-of-function POLE mutations (n=7, 2 SD; median progression-free survival 3.6 months, p<0.0003) (Ann Oncol (2023) 34 (suppl_2): S448-S449). | detail... |
| POLE inact mut | colorectal carcinoma | not applicable | N/A | Guideline | Risk Factor | Germline POLE inactivating mutations result in polymerase proofreading-associated polyposis and are associated with increased risk of developing colorectal carcinoma (NCCN.org). | detail... |
| POLE inact mut | colorectal cancer | not applicable | N/A | Guideline | Prognostic | POLE inactivating mutations are associated with a more favorable prognosis in patients with colorectal cancer (NCCN.org). | detail... |
| POLE inact mut | Advanced Solid Tumor | predicted - sensitive | unspecified immune checkpoint inhibitor | Clinical Study - Cohort | Actionable | In a retrospective analysis, treatment with immune checkpoint inhibitors including PD1/PD-L1 inhibitor monotherapies or in combination with CTLA inhibitors resulted in improved clinical benefit rate (82.4% vs 30.0%, p=0.013), median progression-free survival (15.1 vs 2.2 mo, p<0.001), overall survival (29.5 vs 6.8 mo, p<0.001), and treatment duration (15.5 vs 2.5 mo, p<0.001) in advanced solid tumor patients harboring pathogenic POLE mutations compared to those harboring benign mutations (PMID: 35108036). | 35108036 |
| POLE mutant | Advanced Solid Tumor | predicted - sensitive | unspecified PD-L1 antibody | Clinical Study - Cohort | Actionable | In a clinical study, immune checkpoint inhibitor (ICI) treatment, including CTLA4, PD-1, and PD-L1-targeting antibodies, resulted in prolonged overall survival (34 vs 18 months, p=0.004) in patients with advanced solid tumors harboring POLE or POLD1 mutations compared to wild-type patients, and POLE/POLD1 mutation served as a predictor of response to ICI (p=0.047, HR=1.41) independent of MSI-H status (PMID: 31415061). | 31415061 |
| POLE mutant | Advanced Solid Tumor | predicted - sensitive | unspecified PD-1 antibody | Clinical Study - Cohort | Actionable | In a clinical study, immune checkpoint inhibitor (ICI) treatment, including CTLA4, PD-1, and PD-L1-targeting antibodies, resulted in prolonged overall survival (34 vs 18 months, p=0.004) in patients with advanced solid tumors harboring POLE or POLD1 mutations compared to wild-type patients, and POLE/POLD1 mutation served as a predictor of response to ICI (p=0.047, HR=1.41) independent of MSI-H status (PMID: 31415061). | 31415061 |
| POLE mutant | Advanced Solid Tumor | predicted - sensitive | unspecified CTLA4 antibody | Clinical Study - Cohort | Actionable | In a clinical study, immune checkpoint inhibitor (ICI) treatment, including CTLA4, PD-1, and PD-L1-targeting antibodies, resulted in prolonged overall survival (34 vs 18 months, p=0.004) in patients with advanced solid tumors harboring POLE or POLD1 mutations compared to wild-type patients, and POLE/POLD1 mutation served as a predictor of response to ICI (p=0.047, HR=1.41) independent of MSI-H status (PMID: 31415061). | 31415061 |