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|Protein Effect||loss of function|
|Gene Variant Descriptions||STK11 loss indicates loss of the STK11 gene, mRNA, and protein.|
|Associated Drug Resistance|
|Molecular Profile||Protein Effect||Treatment Approaches|
|STK11 loss||loss of function||mTOR Inhibitor mTORC1 Inhibitor|
|ERBB2 act mut STK11 loss|
|STK11 D194E STK11 loss|
|Molecular Profile||Indication/Tumor Type||Response Type||Therapy Name||Approval Status||Evidence Type||Efficacy Evidence||References|
|STK11 loss||lung cancer||resistant||unspecified PD-1 antibody||Preclinical||Actionable||In a preclinical study, PD-1 antibodies were ineffective in treating Stk11 (also known as Lkb1) deficient lung tumors in mice (PMID: 26833127).||26833127|
|STK11 loss||Advanced Solid Tumor||no benefit||Metformin||Preclinical - Cell culture||Actionable||In a preclinical study, Glucophage (metformin) was unable to inhibit cancer cell growth in cancer cell lines with biallelic loss of STK11 (PMID: 17062558, PMID: 18006825).||18006825 17062558|
|ERBB2 act mut STK11 loss||breast cancer||sensitive||AZD8055||Preclinical||Actionable||In a preclinical study, AZD8055 inhibited tumor growth in a mouse model of spontaneous breast cancer harboring an ERBB2 (HER2) activating mutation and loss of STK11 (LKB1), which was enhanced by the addition of 2-DG (2-deoxyglucose) (PMID: 25436981).||25436981|
|STK11 D194E STK11 loss||pancreatic cancer||predicted - sensitive||Everolimus||Case Reports/Case Series||Actionable||In a clinical case study, a pancreatic cancer patient with Peutz-Jeghers syndrome harboring STK11 D194E and loss of heterozygosity of the other STK11 allele in the tumor achieved a partial response following treatment with Afinitor (everolimus), but progressed after 9 months (PMID: 21189378).||21189378|