2016
DOI: 10.1016/j.freeradbiomed.2016.10.175
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Nitroarachidonic Acid (NO2AA) Inhibits Protein Disulfide Isomerase (PDI) Through Reversible Covalent Adduct Formation with Critical Cysteine Residues

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Cited by 4 publications
(6 citation statements)
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“…There are several proteins reported to be targets of NO 2 -FA electrophilic reactivity, for example, the p65 subunit of NF-κB [1], [23], [92], heme oxygenase-1 (HO-1) [17], [19], [22], [67], [89], [93], mitogen-activated protein kinase (MAPK) phosphatase 1 (MPK-1) [92], Kelch-like ECH-associated protein 1 (Keap 1) [17], [22], [46], [88], metalloproteinases (MMP-7 and MMP-9) [75], glyceraldehyde-3-phosphate dehydrogenase (GAPDH) [42], [94], protein disulfide isomerase (PDI) [95], and transient receptor potential (TRP) channels [96], [97], [98], [99] (Table 3). NO 2 -FA can also conduct their biological signaling roles by a receptor-dependent signaling action and peroxisome proliferator-activated receptor gamma (PPARγ) is one of the main targets, which is a significant route for the anti-inflammatory effect associated with NO 2 -FA derivatives [6], [23], [47], [65], [93], [100], [101], [102].…”
Section: Nitro-fatty Acids and Protein Lipoxidation Adductsmentioning
confidence: 99%
See 1 more Smart Citation
“…There are several proteins reported to be targets of NO 2 -FA electrophilic reactivity, for example, the p65 subunit of NF-κB [1], [23], [92], heme oxygenase-1 (HO-1) [17], [19], [22], [67], [89], [93], mitogen-activated protein kinase (MAPK) phosphatase 1 (MPK-1) [92], Kelch-like ECH-associated protein 1 (Keap 1) [17], [22], [46], [88], metalloproteinases (MMP-7 and MMP-9) [75], glyceraldehyde-3-phosphate dehydrogenase (GAPDH) [42], [94], protein disulfide isomerase (PDI) [95], and transient receptor potential (TRP) channels [96], [97], [98], [99] (Table 3). NO 2 -FA can also conduct their biological signaling roles by a receptor-dependent signaling action and peroxisome proliferator-activated receptor gamma (PPARγ) is one of the main targets, which is a significant route for the anti-inflammatory effect associated with NO 2 -FA derivatives [6], [23], [47], [65], [93], [100], [101], [102].…”
Section: Nitro-fatty Acids and Protein Lipoxidation Adductsmentioning
confidence: 99%
“…The nitro lipoxidation PTM of the proteins shown in the Table 3 have been correlated with specific biological effects. For example, nitroalkylation of the p65 subunit of NF-κB [23], induction of HO-1 expression [93], PPARγ modulation [100], inhibition of the correct assembly of the active NADPH oxidase (NOX2) [74], and inhibition of both reductase and chaperone activities of PDI and possible prevention of NOX2 activation [95] have been associated with the anti-inflammatory properties of NO 2 -FA. Another important anti-inflammatory action of NO 2 -FA is attributed to their capability to induce PTM of 5-Lipoxygenase (5-LOX) limiting the inflammation induced by the 5-LOX-dependent leukotriene synthesis.…”
Section: Nitro-fatty Acids and Protein Lipoxidation Adductsmentioning
confidence: 99%
“…The methodology employed for NFA detection and quantitation was performed by HPLC-MS/MS using a triple quadrupole with a linear ion trap mass spectrometer (QTRAP4500, ABSciex) in the MRM mode [5,9,10].…”
Section: Experimental Design Materials and Methodsmentioning
confidence: 99%
“…De qualquer forma, peróxido de hidrogénio e peroxinitrito reagem aproximadamente dez vezes mais rapidamente com ambas as cisteínas redox ativas da PDI (Cys 53 e Cys 397 ) do que com os resíduos de cisteínas de proteínas às quais não foram atribuídas funções redox importantes, como a albumina de soro bovino (k = 1,1 M -1 s -1 e 2,8 × 10 3 M -1 s -1 , respectivamente, a pH 7,4, 37 °C) (RADI et al, 1991). Este fato e a alta abundância de PDI no RE e outros locais celulares indicam que a oxidação dos ditióis da PDI por peróxido de hidrogênio (KARALA et al, 2009) Dificuldades semelhantes foram relatadas em outros estudos (KAETZEL et al, 2004;KOZAROVA et al, 2007;GONZÁLEZ-PERILLI et al, 2017) Os resíduos de cisteínas redox ativos da PDI são os alvo preferenciais do peroxinitrito que também promove hidroxilação e nitração da PDI através dos radicais produzidos a partir da decomposição de peroxinitrito catalisada por próton. Estes radicais são produzidos em rendimentos que dependem das concentrações relativas de PDI e peroxinitrito.…”
Section: Discussionunclassified
“…c Íon score é -10 log (P) onde P é a probabilidade da marca observada ser um evento aleatório. Em média, íon score individual >59 indica extensa identidade ou homologia (p < 0.01 domínio a da PDI por LC-MS/MS como relatado em diferentes estudos (KAETZEL et al, 2004;KOZAROVA et al, 2007;GONZÁLEZ-PERILLI et al, 2017). Estes peptídeos são ricos em aminoácidos altamente hidrofóbicos e essa propriedade, junto a outros fatores, resulta em uma menor probabilidade de detecção do peptídeo por LC-MS/MS (CHAMBERS et al, 2012;DOST et al, 2012).…”
Section: Inativação Da Pdiunclassified