1
|
Escudero-Duch C, Muñoz-Moreno L, Martin-Saavedra F, Sanchez-Casanova S, Lerma-Juarez MA, Vilaboa N. Remote control of transgene expression using noninvasive near-infrared irradiation. J Photochem Photobiol B 2023; 242:112697. [PMID: 36963296 DOI: 10.1016/j.jphotobiol.2023.112697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 03/09/2023] [Accepted: 03/13/2023] [Indexed: 03/26/2023]
Abstract
This study investigated whether noninvasive near-infrared (NIR) energy could be transduced into heat in deep-seated organs in which adenovirus type-5 vectors tend to accumulate, thereby activating heat shock protein (HSP) promoter-mediated transgene expression, without local administration of photothermal agents. NIR irradiation of the subdiaphragmatic and left dorsocranial part of the abdominal cavity of adult immunocompetent C3H/HeNRj mice with an 808-nm laser effectively increased the temperature of the irradiated regions of the liver and spleen, respectively, resulting in the accumulation of the heat-inducible HSP70 protein. Spatial control of transgene expression was achieved in the NIR-irradiated regions of the mice administered an adenoviral vector carrying a firefly luciferase (fLuc) coding sequence controlled by a human HSP70B promoter, as assessed by bioluminescence and immunohistochemistry analyses. Levels of reporter gene expression were modulated by controlling NIR power density. Spatial control of transgene expression through NIR-focused activation of the HSP70B promoter, as well as temporal regulation by administering rapamycin was achieved in the spleens of mice inoculated with an adenoviral vector encoding a rapamycin-dependent transactivator driven by the HSP70B promoter and an adenoviral vector carrying a fLuc coding sequence controlled by the rapamycin-activated transactivator. Mice that were administered rapamycin and exposed to NIR light expressed fLuc activity in the splenic region, whereas no activity was detected in mice that were only administered rapamycin or vehicle or only NIR-irradiated. Thus, in the absence of any exogenously supplied photothermal material, remote control of heat-induced transgene expression can be achieved in the liver and spleen by means of noninvasive NIR irradiation.
Collapse
Affiliation(s)
- Clara Escudero-Duch
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain; Hospital Universitario La Paz-IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain
| | - Laura Muñoz-Moreno
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain; Hospital Universitario La Paz-IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain
| | - Francisco Martin-Saavedra
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain; Hospital Universitario La Paz-IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain
| | - Silvia Sanchez-Casanova
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain; Hospital Universitario La Paz-IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain
| | - Miguel Angel Lerma-Juarez
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain; Hospital Universitario La Paz-IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain
| | - Nuria Vilaboa
- CIBER de Bioingenieria, Biomateriales y Nanomedicina, CIBER-BBN, Madrid, Spain; Hospital Universitario La Paz-IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain.
| |
Collapse
|