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Isolated sequences from the linked Myf-5 and MRF4 genes drive distinct patterns of muscle-specific expression in transgenic mice.
Development. 1993 May; 118(1):61-9.D

Abstract

In developing mouse embryos, MyoD family regulatory genes are expressed specifically in muscle precursors and mature myofibers. This pattern, taken together with the well-established ability of MyoD family members to convert a variety of cell types to skeletal muscle, suggests a significant role for these genes in regulating skeletal myogenesis. The possibility that expression of these genes may be causally associated with segregation of the myogenic lineage from other mesodermal derivatives, or with the subsequent maintenance of muscle phenotypes at later times, raises the issue of how MyoD family genes are themselves regulated during development. In this work, we have initiated studies to identify DNA sequences that govern Myf-5 and MRF4 (herculin, myf-6) transcription. Myf-5 is the first of the MyoD family to be expressed in the developing mouse embryo, while MRF4 is the most abundantly expressed myogenic factor in postnatal animals. In spite of their strikingly divergent patterns of expression, Myf-5 and MRF4 are tightly linked in the mouse genome; their translational start codons are only 8.5 kilobases apart. Here, the 5' flanking regions of the mouse Myf-5 and MRF4 genes were separately linked to a bacterial beta-galactosidase (lacZ) gene, and these constructs were each used to produce several lines of transgenic mice. Transgene expression was monitored by X-gal staining of whole embryos and by in situ hybridization of embryo sections. For the Myf-5/lacZ lines, the most intense transgene expression was in the visceral arches and their craniofacial muscle derivatives, beginning at day 8.75 post coitum (p.c.). This correlates with endogenous Myf-5 expression in visceral arches.(ABSTRACT TRUNCATED AT 250 WORDS)

Authors+Show Affiliations

Division of Biology, California Institute of Technology, Pasadena 91125.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, P.H.S.

Language

eng

PubMed ID

8375340

Citation

Patapoutian, A, et al. "Isolated Sequences From the Linked Myf-5 and MRF4 Genes Drive Distinct Patterns of Muscle-specific Expression in Transgenic Mice." Development (Cambridge, England), vol. 118, no. 1, 1993, pp. 61-9.
Patapoutian A, Miner JH, Lyons GE, et al. Isolated sequences from the linked Myf-5 and MRF4 genes drive distinct patterns of muscle-specific expression in transgenic mice. Development. 1993;118(1):61-9.
Patapoutian, A., Miner, J. H., Lyons, G. E., & Wold, B. (1993). Isolated sequences from the linked Myf-5 and MRF4 genes drive distinct patterns of muscle-specific expression in transgenic mice. Development (Cambridge, England), 118(1), 61-9.
Patapoutian A, et al. Isolated Sequences From the Linked Myf-5 and MRF4 Genes Drive Distinct Patterns of Muscle-specific Expression in Transgenic Mice. Development. 1993;118(1):61-9. PubMed PMID: 8375340.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Isolated sequences from the linked Myf-5 and MRF4 genes drive distinct patterns of muscle-specific expression in transgenic mice. AU - Patapoutian,A, AU - Miner,J H, AU - Lyons,G E, AU - Wold,B, PY - 1993/5/1/pubmed PY - 1993/5/1/medline PY - 1993/5/1/entrez SP - 61 EP - 9 JF - Development (Cambridge, England) JO - Development VL - 118 IS - 1 N2 - In developing mouse embryos, MyoD family regulatory genes are expressed specifically in muscle precursors and mature myofibers. This pattern, taken together with the well-established ability of MyoD family members to convert a variety of cell types to skeletal muscle, suggests a significant role for these genes in regulating skeletal myogenesis. The possibility that expression of these genes may be causally associated with segregation of the myogenic lineage from other mesodermal derivatives, or with the subsequent maintenance of muscle phenotypes at later times, raises the issue of how MyoD family genes are themselves regulated during development. In this work, we have initiated studies to identify DNA sequences that govern Myf-5 and MRF4 (herculin, myf-6) transcription. Myf-5 is the first of the MyoD family to be expressed in the developing mouse embryo, while MRF4 is the most abundantly expressed myogenic factor in postnatal animals. In spite of their strikingly divergent patterns of expression, Myf-5 and MRF4 are tightly linked in the mouse genome; their translational start codons are only 8.5 kilobases apart. Here, the 5' flanking regions of the mouse Myf-5 and MRF4 genes were separately linked to a bacterial beta-galactosidase (lacZ) gene, and these constructs were each used to produce several lines of transgenic mice. Transgene expression was monitored by X-gal staining of whole embryos and by in situ hybridization of embryo sections. For the Myf-5/lacZ lines, the most intense transgene expression was in the visceral arches and their craniofacial muscle derivatives, beginning at day 8.75 post coitum (p.c.). This correlates with endogenous Myf-5 expression in visceral arches.(ABSTRACT TRUNCATED AT 250 WORDS) SN - 0950-1991 UR - https://www.unboundmedicine.com/medline/citation/8375340/Isolated_sequences_from_the_linked_Myf_5_and_MRF4_genes_drive_distinct_patterns_of_muscle_specific_expression_in_transgenic_mice_ L2 - https://journals.biologists.com/dev/article-lookup/doi/10.1242/dev.118.1.61 DB - PRIME DP - Unbound Medicine ER -