DPP9 enzymatic activity in hematopoietic cells is dispensable for mouse hematopoiesis

Copyright © 2018 European Federation of Immunological Societies. All rights reserved..

Dipeptidyl peptidase 9 (DPP9) is a ubiquitously expressed intracellular prolyl peptidase implicated in immunoregulation. However, its physiological relevance in the immune system remains largely unknown. We investigated the role of DPP9 enzyme in immune system by characterizing DPP9 knock-in mice expressing a catalytically inactive S729A mutant of DPP9 enzyme (DPP9ki/ki mice). DPP9ki/ki mice show reduced number of lymphoid and myeloid cells in fetal liver and postnatal blood but their hematopoietic cells are fully functional and able to reconstitute lymphoid and myeloid lineages even in competitive mixed chimeras. These studies demonstrate that inactivation of DPP9 enzymatic activity does not lead to any perturbations in mouse hematopoiesis.

Medienart:

E-Artikel

Erscheinungsjahr:

2018

Erschienen:

2018

Enthalten in:

Zur Gesamtaufnahme - volume:198

Enthalten in:

Immunology letters - 198(2018) vom: 30. Juni, Seite 60-65

Sprache:

Englisch

Beteiligte Personen:

Kim, Munkyung [VerfasserIn]
von Muenchow, Lilly [VerfasserIn]
Le Meur, Thomas [VerfasserIn]
Kueng, Benjamin [VerfasserIn]
Gapp, Berangere [VerfasserIn]
Weber, Delphine [VerfasserIn]
Dietrich, William [VerfasserIn]
Kovarik, Jiri [VerfasserIn]
Rolink, Antonius G [VerfasserIn]
Ksiazek, Iwona [VerfasserIn]

Links:

Volltext

Themen:

Competitive reconstitution assay
DPP9
DPP9 knock-in enzyme inactive mice
Dipeptidyl peptidase
Dipeptidyl peptidase 9, mouse
Dipeptidyl-Peptidases and Tripeptidyl-Peptidases
EC 3.4.14.-
EC 3.4.14.5
Hematopoiesis
Hematopoietic stem cells
Journal Article
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 03.05.2019

Date Revised 03.05.2019

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.imlet.2018.04.008

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM283569794