What are DNA binding vesicants?

DNA binding vesicant drugs such as amsacrine, dactinomycin, daunorubicin, doxorubicin, epirubicin, idarubicin, mitomycin: have a direct effect on the cell in healthy tissue when they are extravasated. cause progressive tissue destruction as they bind to cellular DNA and recycle locally.

What are vesicants drugs?

Vesicants: Drugs that can result in tissue necrosis or formation of blisters when accidentally infused into tissue surrounding a vein[14]. They include Actinomycin D, Dactinomycin, Daunorubicin, Doxorubicin, Epirubicin, Idarubicin, Mitomycin C, Vinblastine, Vindesine, Vincristine, and Vinorelbine.

Is mitoxantrone a DNA binding vesicant?

Examples of DNA-binding vesicants include anthracyclines (daunoru- bicin, doxorubicin, epirubicin, idarubicin), dactinomycin, mech- lorethamine (nitrogen mustard), mitomycin, and mitoxantrone.

What makes something a vesicant?

For a vesicant, the damage is occurring in the subcutaneous tissue OUTSIDE of the vein. For irritants, the damage is occurring to the vein wall INSIDE the lumen. Vesicants cause tissue damage that may OR may not require surgical intervention.

What receptors are involved in the detection of steroids?

Sulfated steroids and bile acids are also detected by vomeronasal receptors, specifically the V1 family. Neuroactive steroids bind to and modulate the activity of several ion channels including the GABA A, NMDA, and sigma receptors.

How do steroid receptors act as transcription factors?

After binding to the ligand (steroid hormone), steroid receptors often form dimers. In the nucleus, the complex acts as a transcription factor, augmenting or suppressing transcription particular genes by its action on DNA.

What are the three functional domains of a steroid receptor?

Steroid receptors are transcription factors with a highly conserved modular design characterized by three functional domains: the transactivation, DNA-binding, and ligand-binding domains.

Do steroid hormones have cell membrane receptors?

New studies suggest that along with the well documented intracellular receptors that cell membrane receptors are present for several steroid hormones and that their cellular responses are much quicker than the intracellular receptors.