Adenosine and acetylcholine (ACh) trigger preconditioning by different signaling pathways. The involvement of phosphatidylinositol 3-kinase (PI3-kinase), a protein tyrosine kinase, and Src family tyrosine kinase in preconditioning was evaluated in isolated rabbit hearts. Either wortmannin (PI3-kinase blocker), genistein (tyrosine kinase blocker), lavendustin A (tyrosine kinase blocker), or 4-am...

Protein tyrosine kinase inhibitors are currently an important drug class in the treatment of leukemia. They represent targeted cancer therapy and have become the treatment of choice in chronic myeloid leukemia. Tyrosine kinases are enzymes expressed in multiple tissues and are involved in several signaling pathways influencing cellular growth. Below we describe a patient who developed an unusua...

The growth and differentiation of normal cells are controlled by protein-tyrosine kinases, which serve as receptors for a wide variety external signals. Small protein modules called Src homology 2 (SH2) SH3 domains mediate protein-protein interactions in signaling pathways that triggered tyrosine kinases. SH2 domain, module around 100 amino acids, is present kinase targets within the cell. recr...

A human epithelial (HeLa) cDNA library was screened with degenerate oligonucleotides designed to hybridize to highly conserved regions of protein-tyrosine kinases. One cDNA from this screen was shown to contain a putative protein-tyrosine kinase catalytic domain and subsequently used to isolate another cDNA from a human keratinocyte library that encompasses the entire coding region of a 976-ami...

A human B-lymphoblastoid lambda gt11 expression library was screened using anti-phosphotyrosine antibodies yielding complementary DNAs encoding active tyrosine kinases. The resulting clones were used to obtain the sequence of a novel 984 amino acid transmembrane tyrosine kinase. Analysis of the complementary DNA revealed extracellular immunoglobulin and fibronectin type III domains and the unus...

EGFR-TKIs (tyrosine kinase inhibitor) can effectively improve the survival rate of NSCLC patients with EGFR sensitive mutations. However, concomitant alterations along mutations often affect effect EGFR-TKIs. The genome characteristic co-mutation is great significance for guiding clinical treatment. In this study, we first reported genetic characteristics EGFR/RB1/TP53 co-variation in Chinese n...