CD135 is the receptor for the cytokine Flt3 ligand (FLT3L). It is expressed on the surface of many hematopoietic progenitor cells. Signalling of FLT3 is important for the normal development of haematopoietic stem cells and progenitor cells. The FLT3 gene is one of the most frequently mutated genes in acute myeloid leukemia (AML). [5]

Mar 29, 2022 · FLT3 is a gene change, or mutation, in leukemia (blood cancer) cells. It’s the most common genetic change in acute myeloid leukemia (AML), a type of leukemia that starts in the bone marrow and ...

FLT3 mutations can be subdivided into internal tandem duplicates (ITD), present in approximately 25% of patients, and point mutations in the tyrosine kinase domain (TKD), present in approximately 5%. Both FLT3-ITD and FLT3-TKD mutations are constitutively activating, leading to ligand-independent FLT3 signaling and cellular proliferation .

Oct 11, 2023 · The FLT3 gene manages the production of fms-like tyrosine kinase 3 (FLT3). FLT3 is a protein that manages the growth and division of various cells, including some blood cells.

Mar 30, 2025 · FLT3 is an important cytokine receptor involved in normal hematopoiesis. Mutations in this gene are common in acute myeloid leukemia (AML) and screening for mutations in this gene has been recommended by the World Health Organization in patients with AML, particularly in cases of cytogenetically normal AML (CN-AML).

Sep 1, 2002 · The FLT3 gene encodes a 1000– and 993–amino acid protein in the mouse and human, respectively,3,7 and is expressed in immature hematopoietic cells, placenta, gonads, and brain.8,9 Immunoprecipitation studies of FLT3 expressed in COS-7, and in other cell types, demonstrate a major band at about 140 kDa, and a less …

The FLT3 protein is found in the outer membrane of certain cell types where a specific protein called FLT3 ligand, or FL, can attach (bind) to it. This binding turns on (activates) the FLT3 protein, which subsequently activates a series of proteins inside the cell that are part of multiple signaling pathways.

Jan 16, 2019 · High levels of FLT3 ligand found in the BM microenvironment during induction as well as consolidation therapy can lead to persistent activity of the FLT3/MAPK pathway and provide survival signals ...

Dec 23, 2020 · The FLT3 receptor is overexpressed on the majority of acute myeloid leukemia (AML) blasts. Mutations in FLT3 are the most common genetic alteration in AML, identified in approximately one third of newly diagnosed patients. FLT3 internal tandem duplication mutations (FLT3-ITD) are associated with increased relapse and inferior overall survival ...

FLT3 mutation is the most frequently identified in AML patients (A), and frequently co–occurs with NPM1, DNMT3A, IDH1/2, TET2, GATA2 and KMT2A‐partial tandem duplication mutations (B). Figures are adopted from the reference 12. FLT3 mutations are associated with specific cytogenetics or other genetic mutations.