Article (Scientific journals)
Defensis induce the recruitment of dendritic cells in cervical human papillomavirus-associated (pre)neoplastic lesions formed in vitro and transplanted in vivo
Hubert, Pascale; Herman, Ludivine; Maillard, Catherine et al.
2007In FASEB Journal, 21 (11), p. 2765-75
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Keywords :
alpha and beta defensins; antigen presenting cells; HPV; cervical lesions; migration
Abstract :
[en] In addition to their direct antimicrobial activity, defensins might also influence adaptive immunity by attracting immature dendritic cells (DC). As these cells have been shown to be deficient in uterine cervix carcinogenesis, we evaluated the ability of -defensin (HNP-2, human neutrophil defensin 2) and ß-defensin (HßD2, human beta defensin 2) to stimulate their migration in human papillomavirus (HPV)-associated (pre)cancers. We first observed, using RT-PCR and immunohistology, that HßD2 is absent in HPV-transformed keratinocytes and that it is weakly expressed in cervical (pre)neoplastic lesions in comparison with normal keratinocytes. We next demonstrated that defensins exert a chemotactic activity for DC in a Boyden Chamber assay and stimulate their infiltration in an in vitro-formed (pre)neoplastic epithelium (organotypic culture of HPV-transformed keratinocytes). To evaluate the ability of defensins also to recruit DC in vivo, we developed a model of immunodeficient mice grafted with organotypic cultures of HPV+ keratinocytes, which form an epithelium similar to a high-grade neoplastic lesion, with tumoral invasion and neovascularization. Intravenously injected human DC were able to infiltrate grafts of HPV+ keratinocytes after administration of HNP-2 in the transplantation chamber. Taken together, these results suggest that defensins could reverse a frequent immune alteration observed in cancer development.
Disciplines :
Anatomy (cytology, histology, embryology...) & physiology
Author, co-author :
Hubert, Pascale  ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Anatomie et cytologie pathologiques
Herman, Ludivine ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Anatomie et cytologie pathologiques
Maillard, Catherine ;  Université de Liège - ULiège > Département des sciences cliniques > Labo de biologie des tumeurs et du développement
Caberg, Jean-Hubert ;  Université de Liège - ULiège > Interface Entreprises-Université
Nikkels, Arjen ;  Université de Liège - ULiège > Département des sciences cliniques > Dermatologie
Pierard, Gérald ;  Université de Liège - ULiège > Département des sciences cliniques > Dermatopathologie
Foidart, Jean-Michel ;  Université de Liège - ULiège > Département des sciences cliniques > Gynécologie - Obstétrique - Labo de biologie des tumeurs et du développement
Noël, Agnès ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Biologie cellulaire et moléculaire appliquée à l'homme
Boniver, Jacques ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Département des sciences biomédicales et précliniques
Delvenne, Philippe ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Anatomie et cytologie pathologiques
Language :
English
Title :
Defensis induce the recruitment of dendritic cells in cervical human papillomavirus-associated (pre)neoplastic lesions formed in vitro and transplanted in vivo
Publication date :
2007
Journal title :
FASEB Journal
ISSN :
0892-6638
eISSN :
1530-6860
Publisher :
Federation of American Society for Experimental Biology, Bethesda, United States - Maryland
Volume :
21
Issue :
11
Pages :
2765-75
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 25 March 2009

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