What Type of Inhibitor Is Dasatinib?
So, what type of inhibitor is dasatinib? It is an ATP-competitive inhibitor of tyrosine kinases that inhibits c-kit, PD-1, and aIIbb3 outside-in signaling. But, how do you determine if it's right for you? Read on to discover the answer. Alternatively, you can take a look at our interactive dasatinib drug information page.
ATP-competitive inhibitor of tyrosine kinases
An ATP-competitive inhibitor of a tyrosine kinase is a drug that blocks a specific protein's ability to bind ATP. Its mechanism of action is based on targeting a specific protein's DFG-out inactive conformation. The ATP-competitive inhibitors, or AKIs, also modulate the global conformation of the tyrosine kinase. The ATP-competitive inhibitor Dasatinib targets at least 10 different tyrosine kinases, including Abl-1/Arg.
RTKs are signaling proteins that transfer ATP g-phosphate from a cell's nucleus to a protein's kinase domain. They play a crucial role in cell growth and metabolism, and their aberrant activation is linked to the progression of cancer. It is therefore essential to target RTKs early in the disease, when cancer cells are still in quiescence.
The mechanism of action of Dasatinib is based on the observation that the TKD has multiple phosphorylation domains, a phenomenon characterized by interdomain regulation. An increasing body of evidence supports the possibility of an ATP-competitive inhibitor targeting the distal regions of kinases. Although the molecular basis of interdomain regulation is still a mystery, the inhibitors with two distinct ATP-binding site conformations divergently modulate the global conformation of Abl-1.
The tyrosine kinase inhibitor dasatinib has shown promising clinical outcomes in multiple cancers. It inhibits the kinases c-kit and EGFR, as well as Src and Lyn. Dasatinib induces apoptosis in primary CLL cells by inhibiting SFK activity. Dasatinib is a potentially effective treatment for many cancers, including leukemia and prostate cancer.
The chemical compound dasatinib has shown promising anti-tumor activity in neuroblastoma and Ewing sarcoma. It also inhibits PDGFR and BCR-ABL, and it has been shown to inhibit a number of other kinases. In a previous study, dasatinib inhibited the kinases c-kit, BCR-ABL, and SRC-family kinases.
Among the most common inhibitors of the c-Kit pathway, dasatinib is one of the most popular. Dasatinib is a potent inhibitor of MEK, BKM120, and C-kit. These compounds also inhibit downstream factors such as BKM120 and phosphatidylinositol-3-kinase. Inhibitors of these pathways inhibit gene editing.
Several studies have shown that the combination of anti-PD-1 and dasatinib significantly improved patient outcomes. The drug reduces the number of tumor-infiltrating T cells called Tregs, and has been shown to induce immunological memory. This is good news for patients with NSCLC and their caregivers. However, some questions remain regarding the effectiveness of dasatinib. To better understand the potential benefits of this drug combination, read on.
The combination of dasatinib and anti-PD-1 inhibited tumor growth, decreased Tregs, and reduced mIF in the tumor. The combination had antitumor effects in the UNSCC680AJ model, but had a milder effect in the 393P tumor model. It inhibits the proliferation of effector CD4+ T cells by blocking the signaling pathways pSTAT5 and pSMAD3.
Inhibits aIIbb3 outside-in signaling
The effects of dasatinib on platelet deposition are attributed to a block in Src family kinases. Lyn is constitutively bound to platelets, and its phosphorylation at Tyr352 leads to phosphorylation of Syk and activation of PLCg2. Src phosphorylation also triggers fibrinogen binding, resulting in activation of aIIbb3 and subsequent platelet deposition.
Dasatinib is a potent inhibitor of aIIbb3 signaling. It has been approved for treatment of CML and Ph+ ALL. Its total volume of distribution is 2505 L in humans, indicating its widespread extravascular distribution. However, dose modifications may be necessary based on the level of response and tolerability of the drug.
To assess whether dasatinib inhibits aIibb3 outside-in signaling, PRP samples were incubated with aIIbb3 inhibitors eptifibatide, IV.3 mAb, dasatinib, and iBtks. In addition, PF4, a marker of a-granule secretion, was determined by ELISA.