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Newly discovered tachykinins raise new questions about their peripheral roles and the tachykinin nomenclature. 2004

Riccardo Patacchini, and Alessandro Lecci, and Peter Holzer, and Carlo Alberto Maggi
Pharmacology Department, Menarini Ricerche, Via Rismondo 12/A, 50131, Florence, Italy. chimfarm@menarini-ricerche.it

The tachykinin family has recently been extended by the discovery of a third tachykinin gene encoding previously unknown mammalian tachykinins (hemokinin 1, endokinin A and endokinin B) that have a widespread peripheral distribution and a tachykinin NK(1) receptor selectivity. This and the identification of other tachykinin-like peptides such as C14TKL-1 and virokinin raise many questions about the roles played by tachykinins in peripheral tissues and render terms such as 'neurokinins' and 'SP receptor' inappropriate.

UI MeSH Term Description Entries
D009626 Terminology as Topic Works about the terms, expressions, designations, or symbols used in a particular science, discipline, or specialized subject area. Etymology,Nomenclature as Topic,Etymologies
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013045 Species Specificity The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species. Species Specificities,Specificities, Species,Specificity, Species
D015320 Tachykinins A family of biologically active peptides sharing a common conserved C-terminal sequence, -Phe-X-Gly-Leu-Met-NH2, where X is either an aromatic or a branched aliphatic amino acid. Members of this family have been found in mammals, amphibians, and mollusks. Tachykinins have diverse pharmacological actions in the central nervous system and the cardiovascular, genitourinary, respiratory, and gastrointestinal systems, as well as in glandular tissues. This diversity of activity is due to the existence of three or more subtypes of tachykinin receptors. Tachykinin

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