FOLR1

Folate receptor alpha UniProt accession P15328

Binds to folate and reduced folic acid derivatives and mediates delivery of 5-methyltetrahydrofolate and folate analogs into the interior of cells (PubMed:19074442, PubMed:23851396, PubMed:23934049, PubMed:2527252, PubMed:8033114, PubMed:8567728). Has high affinity for folate and folic acid analogs at neutral pH (PubMed:23851396, PubMed:23934049, PubMed:2527252, PubMed:8033114, PubMed:8567728). Exposure to slightly acidic pH after receptor endocytosis triggers a conformation change that strongly reduces its affinity for folates and mediates their release (PubMed:8567728).

Required for normal embryonic development and normal cell proliferation (By similarity)

Source: UniProt
Cell membrane — Lipid-anchor, GPI-anchor, Apical cell membrane — Lipid-anchor, GPI-anchor, Basolateral cell membrane — Lipid-anchor, GPI-like-anchor, Secreted, Cytoplasmic vesicle, Cytoplasmic vesicle, clathrin-coated vesicle, Endosome
Source: UniProt

Primarily expressed in tissues of epithelial origin. Expression is increased in malignant tissues. Expressed in kidney, lung and cerebellum.

Detected in placenta and thymus epithelium

Source: UniProt
  • Neurodegeneration due to cerebral folate transport deficiency (NCFTD)

    An autosomal recessive neurodegenerative disorder resulting from brain-specific folate deficiency early in life. Onset is apparent in late infancy with severe developmental regression, movement disturbances, epilepsy and leukodystrophy.

Source: UniProt

Click a pathway to open the interactive Reactome viewer.

Pathway list and interactive viewer: Reactome

Synthetic Lethal Network

Genes with an experimentally identified or computationally predicted synthetic-lethal relationship to FOLR1, aggregated across our SSL data sources. Click any partner node to view that gene’s page.

Nodes and edges are coloured by the SSL data source. Partners appearing in more than one source are shown in grey.

BioGRID SLOrth SynLethDB MexDrugs Multi-source
Sources: BioGRID, SLOrth, SynLethDB, MexDrugs

Clinical Trials

Total Trials Found: 77

NCT ID Condition Brief Title Phase Status
NCT05622591 Acute Myeloid Leukemia, AML, Childhood, Relapsed Pediatric AML, Refractory Pediatric AML ELU001 in Pediatric Subjects Who Have Relapsed and/or Refractory CBFA2T3-GLIS2-positive AML PHASE1 WITHDRAWN
NCT02631876 Epithelial Ovarian Cancer, Primary Peritoneal Carcinoma, Fallopian Tube Cancer, Ovarian Cancer A Study of Mirvetuximab Soravtansine vs. Investigator's Choice of Chemotherapy in Women With Folate Receptor (FR) Alpha Positive Advanced Epithelial Ovarian Cancer (EOC), Primary Peritoneal or Fallopian Tube Cancer PHASE3 COMPLETED
NCT05001282 Ovarian Cancer, Ovarian Neoplasms, Ovarian Carcinoma, Endometrial Cancer, Ovary Cancer, Ovary Neoplasm, Ovary Disease, Ovary Metastasis, Ovarian Diseases, Ovarian Cancer Stage, Ovarian Epithelial Cancer, Ovarian Adenocarcinoma, Ovarian Serous Adenocarcinoma, Ovarian Neoplasm Epithelial, Ovarian Cancer Recurrent, Endometrial Diseases, Endometrial Adenocarcinoma, Endometrial Carcinosarcoma, Endometrial Clear Cell Adenocarcinoma, Endometrioid Adenocarcinoma, Endometrial Neoplasms, Endometrial Cancer Recurrent, Endometrioid Tumor, Fallopian Tube Cancer, Peritoneal Cancer A Study to Evaluate ELU001 in Patients With Solid Tumors That Overexpress Folate Receptor Alpha (FRα) PHASE1, PHASE2 TERMINATED
NCT05577715 Carcinoma, Non-Small-Cell Lung A Study of MORAb-202 in Participants With Previously Treated Metastatic Non-Small Cell Lung Cancer (NSCLC) Adenocarcinoma (AC) PHASE2 TERMINATED
NCT07116057 Metastatic Non Small Cell Lung Cancer, Recurrent Lung Non-Small Cell Carcinoma MOv19-BBz CAR T Cells in FRa+ Cancers PHASE1 RECRUITING
NCT04606914 Ovarian Cancer, Fallopian Tube, Primary Peritoneal Cancer Study of Carboplatin and Mirvetuximab Soravtansine in First-Line Treatment of Patients Receiving Neoadjuvant Chemotherapy With Advanced-Stage Ovarian, Fallopian Tube or Primary Peritoneal Cancer PHASE2 RECRUITING
NCT01609556 Tumors First-in-Human Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of Mirvetuximab Soravtansine in Adults With Ovarian Cancer and Other Folate Receptor 1 (FOLR1)-Positive Solid Tumors PHASE1 COMPLETED
NCT03366493 Cervical Intraepithelial Neoplasia Grade 2/3 The Study of Folate Receptor-Mediated Staining Solution (FRD™) In Cervical Lesion Detection PHASE3 UNKNOWN
NCT06976892 High Grade Serous Ovarian Cancer Investigating Idetrexed and Olaparib in Patients With Ovarian Cancer PHASE1 RECRUITING
NCT02593227 Breast Cancer Folate Receptor Alpha Peptide Vaccine With GM-CSF in Patients With Triple Negative Breast Cancer PHASE2 COMPLETED