Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2010-5-13
pubmed:abstractText
A(2B) adenosine receptors have been investigated in recent years as potential target for the treatment of different pathologies. The involvement of this receptor in processes such as interleukins secretion, Ca(2+) mobilization, hepatic glucose regulation, tumor vascularisation, and cardioprotection have stimulated many researchers to develop specific agonists and antagonists. For many years, the lack of potent and selective A(2B) ligands precluded a deep exploration of their therapeutic prospective; at present, much progress in the field of antagonists led to preclinical studies for different compounds. Less populated is the universe of A(2B) agonists, but really promising for the involvement in ischemic preconditioning. A summary of the most significant advancements in the synthesis of new compounds and of the principal structure activity relationships is reported. The xanthine-based A(2B) antagonists currently show the better profile of affinity and selectivity, as CVT-6883 (CVT-Therapeutics: K(i(A2B))=22 nM, and selectivity higher than 50-fold over other subtypes), MRE-2029-F20 (Baraldi's group: K(i(A2B))=5.5 nM, selectivity >180 fold), LAS38096 (Almirall Prodesfarma: K(i(A2B))=17 nM, selectivity >60 fold), OSIP339391 (OSI Pharmaceuticals: K(i(A2B))=0.5 nM, selectivity >80 fold), PSB601 (Bonn University: K(i(A2B))=3.6 nM, selectivity >140 fold) and the deazaxanthine 32 of Carotti's group (K(i(A2B))=11 nM, selectivity >90 fold). Other recently emerging scaffolds with promising biological profiles are described. With regard to the agonists, many research groups are involved in the discovery of useful agonist radioligands, but the only example of potent and rather selective A(2B) agonists are compound 65, recently synthesized, and BAY-60-6583, that is under preclinical phase investigation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1873-4294
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
10
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
923-40
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
A2B receptor ligands: past, present and future trends.
pubmed:affiliation
Dip. Scienze Farmaceutiche, Via Bonanno 6, Pisa, Italy. marti@farm.unipi.it
pubmed:publicationType
Journal Article, Review