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Rhodopsin promoter-EGFP fusion transgene expression in photoreceptor neurons of retina and pineal complex in mice.
Neurosci Lett 2005; 379(2):138-43NL

Abstract

Light detection in vertebrate eyes is mediated through retinal photoreceptor rod and cone cells that transduce light signals into electrical responses. The differentiation and synaptogenesis of photoreceptor cells are especially important since these cells are the main targets of degeneration in retinitis pigmentosa. We produced transgenic mice that express enhanced green fluorescent protein (EGFP) under the control of the mouse rhodopsin gene promoter. In Western blot analyses of transgenic retinal homogenates, expression of the endogenous rhodopsin gene was detected from post-natal day (P)8; however, EGFP expression in transgenic retinas was initially detected at P12, indicating delayed expression of the transgene. At P14, fluorescence microscopy showed a weak expression of EGFP in the transgenic retina. In the adult transgenic mice, the strongest EGFP expression was observed in the outer nuclear layer, and to a lesser extent in the outer plexiform layer as well as in the inner and outer segments. EGFP expression was also observed in the pineal stalk. The rhodopsin promoter-EGFP transgenic mice will be not only useful to assess rhodopsin gene promoter activity in vivo, but also for retinal transplant studies as a source of functional photoreceptor cells that are fluorescent green.

Authors+Show Affiliations

Department of Biochemistry, Toyama Medical and Pharmaceutical University, School of Medicine, Sugitani 2630, Toyama 930-0194, Japan.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15823431

Citation

Ichsan, Andi Muhammad, et al. "Rhodopsin promoter-EGFP Fusion Transgene Expression in Photoreceptor Neurons of Retina and Pineal Complex in Mice." Neuroscience Letters, vol. 379, no. 2, 2005, pp. 138-43.
Ichsan AM, Kato I, Yoshida T, et al. Rhodopsin promoter-EGFP fusion transgene expression in photoreceptor neurons of retina and pineal complex in mice. Neurosci Lett. 2005;379(2):138-43.
Ichsan, A. M., Kato, I., Yoshida, T., Takasawa, K., Hayasaka, S., & Hiraga, K. (2005). Rhodopsin promoter-EGFP fusion transgene expression in photoreceptor neurons of retina and pineal complex in mice. Neuroscience Letters, 379(2), pp. 138-43.
Ichsan AM, et al. Rhodopsin promoter-EGFP Fusion Transgene Expression in Photoreceptor Neurons of Retina and Pineal Complex in Mice. Neurosci Lett. 2005 May 6;379(2):138-43. PubMed PMID: 15823431.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Rhodopsin promoter-EGFP fusion transgene expression in photoreceptor neurons of retina and pineal complex in mice. AU - Ichsan,Andi Muhammad, AU - Kato,Ichiro, AU - Yoshida,Toshiko, AU - Takasawa,Kumi, AU - Hayasaka,Seiji, AU - Hiraga,Koichi, Y1 - 2005/01/22/ PY - 2004/09/23/received PY - 2004/12/03/revised PY - 2004/12/21/accepted PY - 2005/4/13/pubmed PY - 2005/6/21/medline PY - 2005/4/13/entrez SP - 138 EP - 43 JF - Neuroscience letters JO - Neurosci. Lett. VL - 379 IS - 2 N2 - Light detection in vertebrate eyes is mediated through retinal photoreceptor rod and cone cells that transduce light signals into electrical responses. The differentiation and synaptogenesis of photoreceptor cells are especially important since these cells are the main targets of degeneration in retinitis pigmentosa. We produced transgenic mice that express enhanced green fluorescent protein (EGFP) under the control of the mouse rhodopsin gene promoter. In Western blot analyses of transgenic retinal homogenates, expression of the endogenous rhodopsin gene was detected from post-natal day (P)8; however, EGFP expression in transgenic retinas was initially detected at P12, indicating delayed expression of the transgene. At P14, fluorescence microscopy showed a weak expression of EGFP in the transgenic retina. In the adult transgenic mice, the strongest EGFP expression was observed in the outer nuclear layer, and to a lesser extent in the outer plexiform layer as well as in the inner and outer segments. EGFP expression was also observed in the pineal stalk. The rhodopsin promoter-EGFP transgenic mice will be not only useful to assess rhodopsin gene promoter activity in vivo, but also for retinal transplant studies as a source of functional photoreceptor cells that are fluorescent green. SN - 0304-3940 UR - https://www.unboundmedicine.com/medline/citation/15823431/Rhodopsin_promoter_EGFP_fusion_transgene_expression_in_photoreceptor_neurons_of_retina_and_pineal_complex_in_mice_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3940(04)01585-X DB - PRIME DP - Unbound Medicine ER -