» Articles » PMID: 26194821

Pxn-1 and Pxn-2 May Interact Negatively During Neuronal Development and Aging in C. Elegans

Overview
Journal Mol Cells
Publisher Elsevier
Date 2015 Jul 22
PMID 26194821
Citations 1
Authors
Affiliations
Soon will be listed here.
Abstract

C. elegans has two functional peroxidasins (PXN), PXN-1 and PXN-2. PXN-2 is essential to consolidate the extracellular matrix during development and is suggested to interact with PXN-1 antagonistically. pxn-1 is involved in neuronal development and possibly maintenance; therefore, we investigated the relationship between pxn-1 and pxn-2 in neuronal development and in aging. During neuronal development, defects caused by pxn-1 overexpression were suppressed by overexpression of both pxn-1 and pxn-2. In neuronal aging process, pxn-1 mutants showed less age-related neuronal defects, such as neuronal outgrowth, neuronal wavy processes, and enhanced short-term memory performance. In addition, pxn-2 overexpressing animals retained an intact neuronal morphology when compared with age-matched controls. Consistent with these results, overexpression of both pxn-1 and pxn-2 restored the severe neuronal defects present with pxn-1 overexpression. These results implied that there is a negative relationship between pxn-1 and pxn-2 via pxn-1 regulating pxn-2. Therefore, pxn-1 may function in neuronal development and age-related neuronal maintenance through pxn-2.

Citing Articles

Uncoupling Protein, UCP-4 May Be Involved in Neuronal Defects During Aging and Resistance to Pathogens in Caenorhabditis elegans.

Cho I, Hwang G, Cho J Mol Cells. 2016; 39(9):680-6.

PMID: 27646689 PMC: 5050532. DOI: 10.14348/molcells.2016.0125.

References
1.
Tank E, Rodgers K, Kenyon C . Spontaneous age-related neurite branching in Caenorhabditis elegans. J Neurosci. 2011; 31(25):9279-88. PMC: 3148144. DOI: 10.1523/JNEUROSCI.6606-10.2011. View

2.
Pan C, Peng C, Chen C, McIntire S . Genetic analysis of age-dependent defects of the Caenorhabditis elegans touch receptor neurons. Proc Natl Acad Sci U S A. 2011; 108(22):9274-9. PMC: 3107274. DOI: 10.1073/pnas.1011711108. View

3.
Kauffman A, Parsons L, Stein G, Wills A, Kaletsky R, Murphy C . C. elegans positive butanone learning, short-term, and long-term associative memory assays. J Vis Exp. 2011; (49). PMC: 3197297. DOI: 10.3791/2490. View

4.
Peterfi Z, Toth Z, Kovacs H, Lazar E, Sum A, Donko A . Peroxidasin-like protein: a novel peroxidase homologue in the human heart. Cardiovasc Res. 2013; 101(3):393-9. DOI: 10.1093/cvr/cvt256. View

5.
Brenner S . The genetics of Caenorhabditis elegans. Genetics. 1974; 77(1):71-94. PMC: 1213120. DOI: 10.1093/genetics/77.1.71. View