Evidence map›Paper›PMID 24396145›Full record

ReviewDrug metabolism and disposition: the biological fate of chemicals2014

The major facilitative folate transporters solute carrier 19A1 and solute carrier 46A1: biology and role in antifolate chemotherapy of cancer.

Larry H Matherly, Mike R Wilson, Zhanjun Hou

Open access · bronzeAbstract readReview
In one paragraph

Review in Drug metabolism and disposition: the biological fate of chemicals, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed, 1 pooled it
6.1field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

55 citing papers in PubMed, 1 synthesis or guideline pooled it, 88 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Determination of the pyrrolo[2,3-d] pyrimidine antifolate AGF94 from a preclinical murine study using a simple UHPLC-MS/MS assay.Journal of chromatography. B, Analytical technologies in the biomedical and life sciences · 2025
    Article
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. How Cryo-EM Has Expanded Our Understanding of Membrane Transporters.Drug metabolism and disposition: the biological fate of chemicals · 2023
    Review
  15. Article
  16. Multitargeted 6-Substituted Thieno[2,3-ACS pharmacology & translational science · 2023
    Article
  17. Article
  18. Article
  19. Article
  20. Biology and therapeutic applications of the proton-coupled folate transporter.Expert opinion on drug metabolism & toxicology · 2022
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Larry H MatherlyDepartment of Oncology (L.H.M., M.R.W., Z.H.) and Department of Pharmacology (L.H.M.), Wayne State University School of Medicine, Detroit, Michigan; and Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Detroit, Michigan (L.H.M., Z.H.).
Mike R Wilson
Zhanjun Hou
The Barbara Ann Karmanos Cancer Institute · US

Funding

MOLECULAR REGULATION OF FOLATE AND ANTIFOLATE TRANSPORTR01CA053535 · NCI · WAYNE STATE UNIVERSITY · PI HOU, ZHANJUN, MATHERLY, LARRY H · 1993 to 2024
$6.3M
TRAINING PROGRAM IN THE BIOLOGY OF CANCERT32CA009531 · NCI · WAYNE STATE UNIVERSITY · PI Larry H Matherly · 1985 to 2026
$5.3M
Discovery of novel PCFT-targeted agentsR01CA152316 · NCI · WAYNE STATE UNIVERSITY · PI GANGJEE, ALEEM, MATHERLY, LARRY H · 2011 to 2015
$2.3M
NCI NIH HHS CA152316NCI NIH HHS CA53535NCI NIH HHS R01 CA053535NCI NIH HHS R01 CA152316NCI NIH HHS T32 CA009531
6 · The paper itself

Abstract

This review summarizes the biology of the major facilitative membrane transporters, the reduced folate carrier (RFC) (Solute Carrier 19A1) and the proton-coupled folate transporter (PCFT) (Solute Carrier 46A1). Folates are essential vitamins, and folate deficiency contributes to a variety of health disorders. RFC is ubiquitously expressed and is the major folate transporter in mammalian cells and tissues. PCFT mediates the intestinal absorption of dietary folates and appears to be important for transport of folates into the central nervous system. Clinically relevant antifolates for cancer, such as methotrexate and pralatrexate, are transported by RFC, and loss of RFC transport is an important mechanism of methotrexate resistance in cancer cell lines and in patients. PCFT is expressed in human tumors, and is active at pH conditions associated with the tumor microenvironment. Pemetrexed is an excellent substrate for both RFC and PCFT. Novel tumor-targeted antifolates related to pemetrexed with selective membrane transport by PCFT over RFC are being developed. In recent years, there have been major advances in understanding the structural and functional properties and the regulation of RFC and PCFT. The molecular bases for methotrexate resistance associated with loss of RFC transport and for hereditary folate malabsorption, attributable to mutant PCFT, were determined. Future studies should continue to translate molecular insights from basic studies of RFC and PCFT biology into new therapeutic strategies for cancer and other diseases.

Indexed as

AminopterinAnimalsDrug Resistance, NeoplasmFolic AcidFolic Acid AntagonistsHumansMethotrexateNeoplasmsProton-Coupled Folate TransporterReduced Folate Carrier Protein10-propargyl-10-deazaaminopterinAminopterinFolic AcidFolic Acid AntagonistsMethotrexateProton-Coupled Folate TransporterReduced Folate Carrier ProteinSLC19A1 protein, human

Identifiers

PMID24396145
PMCPMC3965896
OpenAlexW2144018378

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.