The in vivo expression of dipeptidyl peptidases 8 and 9

Denise M.T. Yu, Katerina Ajami, Margaret G. Gall, Joohong Park, C. Soon Lee, Kathryn A. Evans, Eileen A. McLaughlin, Melissa R. Pitman, Catherine A. Abbott, Geoffrey W. McCaughan, Mark D. Gorrell

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

The dipeptidyl peptidase IV (DPIV) enzyme family contains both potential and proven therapeutic targets. Recent reports indicate the presence of DP8 and DP9 in peripheral blood lymphocytes, testis, lung, and brain. For a more comprehensive understanding of DP8 and DP9 tissue and cellular expression, mRNA and enzyme activity were examined. Many organs from C57BL/6 wild-type and DPIV gene-knockout mice were examined; DP8/ 9 enzyme activity was detected in the immune system, brain, testis, muscle, and epithelia. In situ hybridization localized DP8 and DP9 mRNA to lymphocytes and epithelial cells in liver, gastrointestinal tract, lymph node, spleen, and lung. DP8 and DP9 mRNA was detected in baboon and mouse testis, and DP9 expression was elevated in human testicular cancers. DP8 and DP9 mRNA were ubiquitous in day 17 mouse embryo, with greatest expression in epithelium (skin and gastrointestinal tract) and brain. Thus, DP8 and DP9 are widely expressed enzymes. Their expression in lymphocytes and epithelia indicates potential for roles in the digestive and immune systems. This manuscript contains online supplemental material at http://www.jhc.org. Please visit this article online to view these materials.

Original languageEnglish
Pages (from-to)1025-1040
Number of pages16
JournalJournal of Histochemistry and Cytochemistry
Volume57
Issue number11
DOIs
Publication statusPublished - 1 Nov 2009
Externally publishedYes

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Dipeptidyl-Peptidases and Tripeptidyl-Peptidases
Dipeptidyl Peptidase 4
Testis
Messenger RNA
Epithelium
Lymphocytes
Enzymes
Gastrointestinal Tract
Immune System
Brain
Digestive System
Lung
Gene Knockout Techniques
Papio
Testicular Neoplasms
Knockout Mice
In Situ Hybridization
Spleen
Embryonic Structures
Lymph Nodes

Cite this

Yu, D. M. T., Ajami, K., Gall, M. G., Park, J., Lee, C. S., Evans, K. A., ... Gorrell, M. D. (2009). The in vivo expression of dipeptidyl peptidases 8 and 9. Journal of Histochemistry and Cytochemistry, 57(11), 1025-1040. https://doi.org/10.1369/jhc.2009.953760
Yu, Denise M.T. ; Ajami, Katerina ; Gall, Margaret G. ; Park, Joohong ; Lee, C. Soon ; Evans, Kathryn A. ; McLaughlin, Eileen A. ; Pitman, Melissa R. ; Abbott, Catherine A. ; McCaughan, Geoffrey W. ; Gorrell, Mark D. / The in vivo expression of dipeptidyl peptidases 8 and 9. In: Journal of Histochemistry and Cytochemistry. 2009 ; Vol. 57, No. 11. pp. 1025-1040.
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Yu, DMT, Ajami, K, Gall, MG, Park, J, Lee, CS, Evans, KA, McLaughlin, EA, Pitman, MR, Abbott, CA, McCaughan, GW & Gorrell, MD 2009, 'The in vivo expression of dipeptidyl peptidases 8 and 9', Journal of Histochemistry and Cytochemistry, vol. 57, no. 11, pp. 1025-1040. https://doi.org/10.1369/jhc.2009.953760

The in vivo expression of dipeptidyl peptidases 8 and 9. / Yu, Denise M.T.; Ajami, Katerina; Gall, Margaret G.; Park, Joohong; Lee, C. Soon; Evans, Kathryn A.; McLaughlin, Eileen A.; Pitman, Melissa R.; Abbott, Catherine A.; McCaughan, Geoffrey W.; Gorrell, Mark D.

In: Journal of Histochemistry and Cytochemistry, Vol. 57, No. 11, 01.11.2009, p. 1025-1040.

Research output: Contribution to journalArticle

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AU - Lee, C. Soon

AU - Evans, Kathryn A.

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N2 - The dipeptidyl peptidase IV (DPIV) enzyme family contains both potential and proven therapeutic targets. Recent reports indicate the presence of DP8 and DP9 in peripheral blood lymphocytes, testis, lung, and brain. For a more comprehensive understanding of DP8 and DP9 tissue and cellular expression, mRNA and enzyme activity were examined. Many organs from C57BL/6 wild-type and DPIV gene-knockout mice were examined; DP8/ 9 enzyme activity was detected in the immune system, brain, testis, muscle, and epithelia. In situ hybridization localized DP8 and DP9 mRNA to lymphocytes and epithelial cells in liver, gastrointestinal tract, lymph node, spleen, and lung. DP8 and DP9 mRNA was detected in baboon and mouse testis, and DP9 expression was elevated in human testicular cancers. DP8 and DP9 mRNA were ubiquitous in day 17 mouse embryo, with greatest expression in epithelium (skin and gastrointestinal tract) and brain. Thus, DP8 and DP9 are widely expressed enzymes. Their expression in lymphocytes and epithelia indicates potential for roles in the digestive and immune systems. This manuscript contains online supplemental material at http://www.jhc.org. Please visit this article online to view these materials.

AB - The dipeptidyl peptidase IV (DPIV) enzyme family contains both potential and proven therapeutic targets. Recent reports indicate the presence of DP8 and DP9 in peripheral blood lymphocytes, testis, lung, and brain. For a more comprehensive understanding of DP8 and DP9 tissue and cellular expression, mRNA and enzyme activity were examined. Many organs from C57BL/6 wild-type and DPIV gene-knockout mice were examined; DP8/ 9 enzyme activity was detected in the immune system, brain, testis, muscle, and epithelia. In situ hybridization localized DP8 and DP9 mRNA to lymphocytes and epithelial cells in liver, gastrointestinal tract, lymph node, spleen, and lung. DP8 and DP9 mRNA was detected in baboon and mouse testis, and DP9 expression was elevated in human testicular cancers. DP8 and DP9 mRNA were ubiquitous in day 17 mouse embryo, with greatest expression in epithelium (skin and gastrointestinal tract) and brain. Thus, DP8 and DP9 are widely expressed enzymes. Their expression in lymphocytes and epithelia indicates potential for roles in the digestive and immune systems. This manuscript contains online supplemental material at http://www.jhc.org. Please visit this article online to view these materials.

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