Protein Information

Name caspases (protein family or complex)
Synonyms caspase; caspases

Compound Information

Name mercuric chloride
CAS

Reference List

PubMed Abstract RScore(About this table)
9388494 Li J, Billiar TR, Talanian RV, Kim YM: Nitric oxide reversibly inhibits seven members of the caspase family via S-nitrosylation. Biochem Biophys Res Commun. 1997 Nov 17;240(2):419-24.

3(0,0,0,3) Details
17950395 Laiosa MD, Eckles KG, Langdon M, Rosenspire AJ, McCabe MJ Jr: Exposure to inorganic mercury in vivo attenuates extrinsic apoptotic signaling in Staphylococcal aureus enterotoxin B stimulated T-cells. Toxicol Appl Pharmacol. 2007 Dec 15;225(3):238-50. Epub 2007 Jun 19.

To test this hypothesis, BALB/cJ mice were exposed to 10 mg/l mercuric chloride (HgCl (2)) in their drinking water for 2 weeks followed by injection with 20 microg of the Staphylococcal aureus enterotoxin B (SEB) superantigen.
The attenuated caspase activity in Hg-exposed mice persisted for 48 h after exposure.
3(0,0,0,3) Details
12504520 Issa Y, Watts DC, Duxbury AJ, Brunton PA, Watson MB, Waters CM: Mercuric chloride: toxicity and apoptosis in a human oligodendroglial cell line MO3.13. Biomaterials. 2003 Mar;24(6):981-7.

Biochemical analysis showed that HgCl (2) activated the caspase family of proteases.
2(0,0,0,2) Details
15986368 Pacheco FJ, Servin J, Dang D, Kim J, Molinaro C, Daniels T, Brown-Bryan TA, Imoto-Egami M, Casiano CA: Involvement of lysosomal cathepsins in the cleavage of DNA topoisomerase I during necrotic cell death. Arthritis Rheum. 2005 Jul;52(7):2133-45.


METHODS: Topo I cleavage during necrosis was assessed by immunoblotting of lysates from L929 fibroblasts exposed to tumor necrosis factor alpha (TNFalpha) and the broad caspase inhibitor Z-VAD-FMK, and by immunoblotting of lysates from endothelial cells treated with HgCl2.
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12215206 Shenker BJ, Pankoski L, Zekavat A, Shapiro IM: Mercury-induced apoptosis in human lymphocytes: caspase activation is linked to redox status. Antioxid Redox Signal. 2002 Jun;4(3):379-89.

We have previously shown that methyl mercuric chloride (MeHgCl) is a potent human T-cell apoptogen; moreover, mitochondria appear to be a target organelle for the induction of cell death.
2(0,0,0,2) Details
15050407 Kim SH, Sharma RP: Mercury-induced apoptosis and necrosis in murine macrophages: role of calcium-induced reactive oxygen species and p38 mitogen-activated protein kinase signaling. Toxicol Appl Pharmacol. 2004 Apr 1;196(1):47-57.

P38-mediated caspase activation regulates mercury-induced apoptosis and p38-mediated TNFalpha regulates necrosis in these cells.
The cytotoxic EC (50) of mercury ranged from 62.7 to 81.1 microM by various assays in J774A.1 cultures; accordingly, we employed 70 microM of mercuric chloride in most experiments.
1(0,0,0,1) Details
12505371 Araragi S, Kondoh M, Kawase M, Saito S, Higashimoto M, Sato M: Mercuric chloride induces apoptosis via a mitochondrial-dependent pathway in human leukemia cells. Toxicology. 2003 Feb 14;184(1):1-9.

The release of cytochrome c (Cyt c) from mitochondria into the cytosol, which is an initiator of the activation of caspase cascades, was also observed in HgCl (2)-treated HL-60 cells.
1(0,0,0,1) Details
14551197 Shivakrupa R, Radha V, Sudhakar Ch, Swarup G: Physical and functional interaction between Hck tyrosine kinase and guanine nucleotide exchange factor C3G results in apoptosis, which is independent of C3G catalytic domain. J Biol Chem. 2003 Dec 26;278(52):52188-94. Epub 2003 Oct 9.

These results suggest that C3G and Hck interact physically and functionally in vivo to activate kinase-dependent and caspase-mediated apoptosis, which is independent of catalytic domain of C3G.
Phosphorylation of endogenous C3G at Tyr-504 was increased by treatment of human myelomonocytic THP-1 cells with mercuric chloride, which is known to activate Hck tyrosine kinase specifically.
1(0,0,0,1) Details