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A mitotic inhibitor, microtubule inhibitor, or tubulin inhibitor, is a drug that inhibits mitosis, or cell division, and is used in treating cancer, gout, and nail fungus. These drugs disrupt microtubules , which are structures that pull the chromosomes apart when a cell divides.
Tyrosine kinase inhibitor (TKI) with selective activity against RET, VEGFR-2 and EGFR: Medullary thyroid cancer. Diarrhoea, hypertension, QT interval prolongation, depression, electrolyte anomalies, hypothyroidism and GI perforation (uncommon). 2.3 mTOR inhibitors: Everolimus: PO: mTOR inhibitor.
Monomethyl auristatin E is an antimitotic agent which inhibits cell division by blocking the polymerisation of tubulin.The linker to the monoclonal antibody is stable in extracellular fluid, but is cleaved by cathepsin once the conjugate has entered a tumor cell, thus activating the antimitotic mechanism.
Vinca alkaloids are used in chemotherapy for cancer. They are a class of cell cycle–specific cytotoxic drugs that work by inhibiting the ability of cancer cells to divide: Acting upon tubulin, they prevent it from forming into microtubules, a necessary component for cellular division. [13]
Promotion of mitotic catastrophe in cancer cells is an area of cancer therapeutic research that has garnered interest and is seen as a potential target to overcome resistance developed to current chemotherapies. [4] Cancer cells have been found to be more sensitive to mitotic catastrophe induction than non-cancerous cells in the body. [3]
Demecolcine inhibition of microtubules causes aneuploidy in mitotic cells where the microtubules fall apart or are suppressed before they can complete their function of pulling chromosomes into the daughter cell, also known as nondisjunction of chromosomes. [5]
This delay between cell-cell contact and onset of proliferation inhibition is shortened as the culture becomes more confluent. Thus, it may be reasonably concluded that cell-cell contact is an essential condition for contact inhibition of proliferation, but is by itself insufficient for mitotic inhibition.
There are a few possible causes of resistance in cancer, one of which is the presence of small pumps on the surface of cancer cells that actively move chemotherapy from inside the cell to the outside. Cancer cells produce high amounts of these pumps, known as p-glycoprotein, in order to protect themselves from chemotherapeutics. Research on p ...