| Texto completo | |
| Autor(es): |
Verdaguer, Ignasi Bofill
;
Crispim, Marcell
;
Hernandez, Agustin
;
Katzin, Alejandro Miguel
Número total de Autores: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Molecules; v. 27, n. 24, p. 15-pg., 2022-12-01. |
| Resumo | |
Isoprenoids are the output of the polymerization of five-carbon, branched isoprenic chains derived from isopentenyl pyrophosphate (IPP) and its isomer, dimethylallyl pyrophosphate (DMAPP). Isoprene units are consecutively condensed to form longer structures such as farnesyl and geranylgeranyl pyrophosphate (FPP and GGPP, respectively), necessary for the biosynthesis of several metabolites. Polyprenyl transferases and synthases use polyprenyl pyrophosphates as their natural substrates; however, it is known that free polyprenols, such as farnesol (FOH), and geranylgeraniol (GGOH) can be incorporated into prenylated proteins, ubiquinone, cholesterol, and dolichols. Furthermore, FOH and GGOH have been shown to block the effects of isoprenoid biosynthesis inhibitors such as fosmidomycin, bisphosphonates, or statins in several organisms. This phenomenon is the consequence of a short pathway, which was observed for the first time more than 25 years ago: the polyprenol salvage pathway, which works via the phosphorylation of FOH and GGOH. Biochemical studies in bacteria, animals, and plants suggest that this pathway can be carried out by two enzymes: a polyprenol kinase and a polyprenyl-phosphate kinase. However, to date, only a few genes have been unequivocally identified to encode these enzymes in photosynthetic organisms. Nevertheless, pieces of evidence for the importance of this pathway abound in studies related to infectious diseases, cancer, dyslipidemias, and nutrition, and to the mitigation of the secondary effects of several drugs. Furthermore, nowadays it is known that both FOH and GGOH can be incorporated via dietary sources that produce various biological effects. This review presents, in a simplified but comprehensive manner, the most important data on the FOH and GGOH salvage pathway, stressing its biomedical importance The main objective of this review is to bring to light the need to discover and characterize the kinases associated with the isoprenoid salvage pathway in animals and pathogens. (AU) | |
| Processo FAPESP: | 14/10443-0 - Mecanismos e consequências do travamento do tráfego intracelular por 8- e 14-dehidroesteróis em modelos de parasitos fúngicos |
| Beneficiário: | Agustín Hernández López |
| Modalidade de apoio: | Auxílio à Pesquisa - Jovens Pesquisadores |
| Processo FAPESP: | 19/13419-6 - Estudo dos efeitos da inibição da biossíntese de ubiquinona nos estágios intraeritrocitários de Plasmodium Falciparum |
| Beneficiário: | Ignasi Bofill Verdaguer |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |
| Processo FAPESP: | 17/22452-1 - Biossíntese de isoprenóides em Plasmodium falciparum: avaliação de possíveis alvos para a obtenção de novas drogas antimaláricas |
| Beneficiário: | Alejandro Miguel Katzin |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 18/02924-9 - Transporte de precursores isoprênicos como fator de reversão do efeito da fosmidomicina em Plasmodium falciparum |
| Beneficiário: | Marcell Crispim |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |