Abstract
Background: Plasmid DNA vaccination combined with electroporation (EP) provides a promising approach for the prevention of infectious diseases and for cancer immunotherapy. This technology has been described as being effective in activating humoural and cellular immune response in the host as well as in enhancing expression of the encoded antigen. Several reports showed EP has adjuvant-like properties when combined with plasmid DNA injection although the effect in the absence of DNA has not been investigated. Objective: The aim of this study is to clarify whether the application of EP alone to the skeletal muscle is able to recruit and trigger cells involved in antigen presentation and immune response. Methods: Mouse skeletal muscle treated by EP were observed and processed for clinical, histological and immunohistochemistry analysis at different time points. Results: We demonstrate that EP induces transient morphological changes in the muscle with early production of endogenous cytokines responsible for signalling danger at the local level. Moreover, it causes the recruitment of inflammatory cells independently of the DNA injection and the activation of a danger pro-inflammatory pathway, resulting in T-lymphocyte migration. Conclusions: Our data indicate EP by itself is able to recruit and trigger cells involved in antigen presentation and immune response; hence, the idea that EP has adjuvant-like properties owing to a moderate tissue injury and generation of a pro-inflammatory contex-t with cytokine release that enhances the immune response. We suggest EP may be of practical use in clinical protocols, contributing to the development of DNA vaccination strategies.
| Original language | English |
|---|---|
| Pages (from-to) | 1645-1657 |
| Number of pages | 13 |
| Journal | Expert Opinion on Biological Therapy |
| Volume | 8 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - Nov 2008 |
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Keywords
- Adjuvant
- Antigen presentation
- Dendritic cell
- DNA vaccine
- Electroporation
ASJC Scopus subject areas
- Pharmacology
- Clinical Biochemistry
- Drug Discovery
Cite this
Electroporation of skeletal muscle induces danger signal release and antigen-presenting cell recruitment independently of DNA vaccine administration. / Chiarella, Pieranna; Massi, Emanuela; De Robertis, Mariangela; Sibilio, Annarita; Parrella, Paola; Fazio, Vito Michele; Signori, Emanuela.
In: Expert Opinion on Biological Therapy, Vol. 8, No. 11, 11.2008, p. 1645-1657.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Electroporation of skeletal muscle induces danger signal release and antigen-presenting cell recruitment independently of DNA vaccine administration
AU - Chiarella, Pieranna
AU - Massi, Emanuela
AU - De Robertis, Mariangela
AU - Sibilio, Annarita
AU - Parrella, Paola
AU - Fazio, Vito Michele
AU - Signori, Emanuela
PY - 2008/11
Y1 - 2008/11
N2 - Background: Plasmid DNA vaccination combined with electroporation (EP) provides a promising approach for the prevention of infectious diseases and for cancer immunotherapy. This technology has been described as being effective in activating humoural and cellular immune response in the host as well as in enhancing expression of the encoded antigen. Several reports showed EP has adjuvant-like properties when combined with plasmid DNA injection although the effect in the absence of DNA has not been investigated. Objective: The aim of this study is to clarify whether the application of EP alone to the skeletal muscle is able to recruit and trigger cells involved in antigen presentation and immune response. Methods: Mouse skeletal muscle treated by EP were observed and processed for clinical, histological and immunohistochemistry analysis at different time points. Results: We demonstrate that EP induces transient morphological changes in the muscle with early production of endogenous cytokines responsible for signalling danger at the local level. Moreover, it causes the recruitment of inflammatory cells independently of the DNA injection and the activation of a danger pro-inflammatory pathway, resulting in T-lymphocyte migration. Conclusions: Our data indicate EP by itself is able to recruit and trigger cells involved in antigen presentation and immune response; hence, the idea that EP has adjuvant-like properties owing to a moderate tissue injury and generation of a pro-inflammatory contex-t with cytokine release that enhances the immune response. We suggest EP may be of practical use in clinical protocols, contributing to the development of DNA vaccination strategies.
AB - Background: Plasmid DNA vaccination combined with electroporation (EP) provides a promising approach for the prevention of infectious diseases and for cancer immunotherapy. This technology has been described as being effective in activating humoural and cellular immune response in the host as well as in enhancing expression of the encoded antigen. Several reports showed EP has adjuvant-like properties when combined with plasmid DNA injection although the effect in the absence of DNA has not been investigated. Objective: The aim of this study is to clarify whether the application of EP alone to the skeletal muscle is able to recruit and trigger cells involved in antigen presentation and immune response. Methods: Mouse skeletal muscle treated by EP were observed and processed for clinical, histological and immunohistochemistry analysis at different time points. Results: We demonstrate that EP induces transient morphological changes in the muscle with early production of endogenous cytokines responsible for signalling danger at the local level. Moreover, it causes the recruitment of inflammatory cells independently of the DNA injection and the activation of a danger pro-inflammatory pathway, resulting in T-lymphocyte migration. Conclusions: Our data indicate EP by itself is able to recruit and trigger cells involved in antigen presentation and immune response; hence, the idea that EP has adjuvant-like properties owing to a moderate tissue injury and generation of a pro-inflammatory contex-t with cytokine release that enhances the immune response. We suggest EP may be of practical use in clinical protocols, contributing to the development of DNA vaccination strategies.
KW - Adjuvant
KW - Antigen presentation
KW - Dendritic cell
KW - DNA vaccine
KW - Electroporation
UR - http://www.scopus.com/inward/record.url?scp=56249136280&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=56249136280&partnerID=8YFLogxK
U2 - 10.1517/14712598.8.11.1645
DO - 10.1517/14712598.8.11.1645
M3 - Article
C2 - 18847301
AN - SCOPUS:56249136280
VL - 8
SP - 1645
EP - 1657
JO - Expert Opinion on Biological Therapy
JF - Expert Opinion on Biological Therapy
SN - 1471-2598
IS - 11
ER -