Pain is an important survival mechanism for an organism. It can turn into severe mental and physical disorder however, if the molecular and/or cellular pathways involved in pain signaling are altered. Chronic pain is characterized by an altered pain perception that includes allodynia (a response to a normally non-noxious stimulus) and hyperalgesia (an exaggerated response to a normally noxious stimulus). we will overview the involvement of protein kinases during pain signaling with specific focus on a newly emerging protein kinase, Cyclin-dependent kinase-5 (Cdk5) in this process. serine/threonine and tyrosine kinases have been reported to be involved in multiple aspects of pain signaling .Furthermore, protein kinases also play a central role in the short- and long lasting effects induced by opiates and other abused drugs, participating in the acquisition of tolerance, sensitization, and other behavioral hallmarks of drug addiction. Analysis of the in vivo role of Cdk5 in pain signaling has been restricted due to the embryonic lethality of the Cdk5-knockout mice; however, it should be noted that Cdk5-knockout pups are unresponsive to noxious cutaneous pinch. activity of Cdk5 is required to generate a nociceptive response; however, there is some ambiguity around the functional regulation of this kinase during pain signaling. It should be noted that during normal conditions the activity and expression of Cdk5/p35 is very low in DRG, TG or nociceptor nerve endings.
A journal is a periodical publication intended to further progress of science, usually by reporting new research. Most journals are highly specialized, although some of the oldest journals publish articles, reviews, editorials, short communications, letters, and scientific papers across a wide range of scientific fields. Journals contain articles that peer reviewed, in an attempt to ensure that articles meet the journal's standards of quality, and scientific validity. Each such journal article becomes part of the permanent scientific record.
Last date updated on June, 2014