El Servicio de Transgénicos y Criopreservación ofrece servicios especializados de biotecnología reproductiva de ratones. Realizamos técnicas de reproducción asistida (fecundación in vitro) para asegurar la conservación de cepas infértiles y/o en peligro de extinción, rederivación aséptica por transferencia de embriones para mejorar el estado sanitario de cepas contaminadas, importación/exportación de cepas con material criopreservado o refrigerado, criopreservación y archivo de cepas, y generación de nuevos modelos modificados genéticamente mediante técnicas de transgénesis clásica aditiva o mutagénesis dirigida.
El servicio cuenta con el siguiente equipo especializado:
(texto en English)
- Heated dissecting microscopes.
- Classic and benchtop CO2 incubators for In Vitro Fertilization.
- Controlled-rate freezing unit.
- Inverted Microscope with antivibration system, Eppendorf´s micromanipulators and Femtojet injector.
- ESPACE 151 liquid nitrogen tank for safe storage of samples with auto filling system.
The services we offer are:
- Sperm and Embryo Cryopreservation.
- In vitro fertilization (IVF).
- In vivo sampling of epididymal sperm.
- Aseptic rederivation by embryo transfer.
- Strain rescue.
- Strain speed expansion through IVF.
- Revitalizing of cryopreserved or refrigerated gametes and embryos.
- Strain Import/Export by sperm, embryos or epididymis.
- DNA or RNA pronuclear/cytoplasmic microinjection.
(texto en English)
Cryopreservation offers the opportunity of archiving valuable laboratory mice strains such as inbred or genetically modified mice, slowing down the onset of genetic drift and insuring them against any natural or sanitary disaster, mismanagement, reproductive problem, or transgene silencing expression.
The use of cryopreservation in this area also represents a good opportunity to apply the 3Rs policies, since on the one hand is an indirect method of reduction by avoiding the loss of these lines and therefore avoiding a new investment of animals in its creation, but on the other hand offers the possibility of directly reducing the number of animals used in research by archiving and eliminating strains that are kept alive but nevertheless are not being used. In this sense, cryopreservation is also a mechanism that makes possible the good management of the animal facilities since the elimination of obsolete lines is cost-effective (Table 1) and not only reduces the total maintenance costs of animals, but releases space that is being wasted and could be used by other developing research lines.
In short, cryopreservation prevents us from losing our model, ensures its quality, is an opportunity to apply the 3Rs and reduce the number of animals used in research, and is also advisable from an economic and management point of view.
Table 1. Ratio of Laboratory mice strains maintenance costs depending on whether they are kept alive or cryopreserved.
El Servicio de Transgénicos del Instituto de Neurociencias CSIC-UMH proporciona apoyo a investigadores para la generación y establecimiento de modelos de ratón modificados genéticamente. Nuestro equipo ofrece asesoramiento técnico sobre la mejor estrategia para conseguir el modelo deseado mediante transgénesis aditiva o mutagénesis dirigida.
El laboratorio está ubicado dentro de una barrera SPF y el trabajo se realiza en condiciones asépticas, asegurando el mejor estado sanitario para las nuevas cepas generadas.
Técnico responsable: Gonzalo Moreno Del Val
email: g.moreno@umh.es »
Técnico: Patricia Muñoz Robledano
email: mailto: pmunoz@umh.es »
Transgénicos y Criopreservación
Instituto de Neurociencias
Universidad Miguel Hernández – CSIC
Campus de San Juan
Sant Joan d’Alacant
Alicante | España
Tel. + 34 965 23 37 00
(ext. servicio 9371 / 9408)