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Volume 3
Issue 4
10.3390/antibiotics3040527
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Article

Antimicrobial Activity of Chemokine CXCL10 for Dermal and Oral Microorganisms

by
Grant O. Holdren
1,†,
David J. Rosenthal
2,†,
Jianyi Yang
3,†,
Amber M. Bates
2,†,
Carol L. Fischer
2,
Yang Zhang
3,
Nicole K. Brogden
1 and
Kim A. Brogden
2,4,*
1
Division of Pharmaceutics and Translational Therapeutics, Department of Pharmaceutical Sciences and Experimental Therapeutics, College of Pharmacy, The University of Iowa, Iowa City, IA 52242, USA
2
Dows Institute for Dental Research, College of Dentistry, The University of Iowa, Iowa City, IA 52242, USA
3
Department of Computational Medicine and Bioinformatics, The University of Michigan, 100 Washtenaw Avenue, Ann Arbor, MI 48109, USA
4
Periodontics, College of Dentistry, The University of Iowa, Iowa City, IA 52242, USA
*
Author to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Antibiotics 2014, 3(4), 527-539; https://doi.org/10.3390/antibiotics3040527
Submission received: 4 September 2014 / Revised: 3 October 2014 / Accepted: 14 October 2014 / Published: 23 October 2014
(This article belongs to the Special Issue Antimicrobial Peptides)
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Abstract

CXCL10 (IP-10) is a small 10 kDa chemokine with antimicrobial activity. It is induced by IFN-γ, chemoattracts mononuclear cells, and promotes adhesion of T cells. Recently, we detected CXCL10 on the surface of the skin and in the oral cavity. In the current study, we used broth microdilution and radial diffusion assays to show that CXCL10 inhibits the growth of Escherichia coli, Staphylococcus aureus, Corynebacterium jeikeium, Corynebacterium striatum, and Candida albicans HMV4C, but not Corynebacterium bovis, Streptococcus mutans, Streptococcus mitis, Streptococcus sanguinis, Fusobacterium nucleatum, Aggregatibacter actinomycetemcomitans, Poryphromonas gingivalis, or C. albicans ATCC 64124. The reason for the selective antimicrobial activity is not yet known. However, antimicrobial activity of CXCL10 may be related to its composition and structure, as a cationic 98 amino acid residue molecule with 10 lysine residues, 7 arginine residues, a total net charge of +11, and a theoretical pI of 9.93. Modeling studies revealed that CXCL10 contains an α-helix at the N-terminal, three anti-parallel β-strands in the middle, and an α-helix at the C-terminal. Thus, CXCL10, when produced on the surface of the skin or in the oral cavity, likely has antimicrobial activity and may enhance innate antimicrobial and cellular responses to the presence of select commensal or opportunistic microorganisms.
Keywords: antimicrobial; CXCL10; IP-10; dermal microorganisms; oral microorganisms; SMAP28 antimicrobial; CXCL10; IP-10; dermal microorganisms; oral microorganisms; SMAP28

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MDPI and ACS Style

Holdren, G.O.; Rosenthal, D.J.; Yang, J.; Bates, A.M.; Fischer, C.L.; Zhang, Y.; Brogden, N.K.; Brogden, K.A. Antimicrobial Activity of Chemokine CXCL10 for Dermal and Oral Microorganisms. Antibiotics 2014, 3, 527-539. https://doi.org/10.3390/antibiotics3040527

AMA Style

Holdren GO, Rosenthal DJ, Yang J, Bates AM, Fischer CL, Zhang Y, Brogden NK, Brogden KA. Antimicrobial Activity of Chemokine CXCL10 for Dermal and Oral Microorganisms. Antibiotics. 2014; 3(4):527-539. https://doi.org/10.3390/antibiotics3040527

Chicago/Turabian Style

Holdren, Grant O., David J. Rosenthal, Jianyi Yang, Amber M. Bates, Carol L. Fischer, Yang Zhang, Nicole K. Brogden, and Kim A. Brogden. 2014. "Antimicrobial Activity of Chemokine CXCL10 for Dermal and Oral Microorganisms" Antibiotics 3, no. 4: 527-539. https://doi.org/10.3390/antibiotics3040527

APA Style

Holdren, G. O., Rosenthal, D. J., Yang, J., Bates, A. M., Fischer, C. L., Zhang, Y., Brogden, N. K., & Brogden, K. A. (2014). Antimicrobial Activity of Chemokine CXCL10 for Dermal and Oral Microorganisms. Antibiotics, 3(4), 527-539. https://doi.org/10.3390/antibiotics3040527

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