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Journal articles on the topic 'Hypaxiales Myotom'

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1

Denetclaw, W. F., and C. P. Ordahl. "The growth of the dermomyotome and formation of early myotome lineages in thoracolumbar somites of chicken embryos." Development 127, no. 4 (2000): 893–905. http://dx.doi.org/10.1242/dev.127.4.893.

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Myotome formation in the epaxial and hypaxial domains of thoraco-lumbar somites was analyzed using fluorescent vital dye labeling of dermomyotome cells and cell-fate assessment by confocal microscopy. Muscle precursor cells for the epaxial and hypaxial myotomes are predominantly located in the dorsomedial and ventrolateral dermomyotome lips, respectively, and expansion of the dermomyotome is greatest along its mediolateral axis coincident with the dorsalward and ventralward growth directions of the epaxial and hypaxial myotomes. Measurements of the dermomyotome at different stages of developme
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2

Eloy-Trinquet, Sophie, and Jean-François Nicolas. "Clonal separation and regionalisation during formation of the medial and lateral myotomes in the mouse embryo." Development 129, no. 1 (2002): 111–22. http://dx.doi.org/10.1242/dev.129.1.111.

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In vertebrates, muscles of the back (epaxial) and of the body wall and limbs (hypaxial) derive from precursor cells located in the dermomyotome of the somites. In this paper, we investigate the mediolateral regionalisation of epaxial and hypaxial muscle precursor cells during segmentation of the paraxial mesoderm and myotome formation, using mouse LaacZ/LacZ chimeras. We demonstrate that precursors of medial and lateral myotomes are clonally separated in the mouse somite, consistent with earlier studies in birds. This clonal separation occurs after segmentation of the paraxial mesoderm. We the
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3

Cinnamon, Y., N. Kahane, and C. Kalcheim. "Characterization of the early development of specific hypaxial muscles from the ventrolateral myotome." Development 126, no. 19 (1999): 4305–15. http://dx.doi.org/10.1242/dev.126.19.4305.

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We have previously found that the myotome is formed by a first wave of pioneer cells generated along the medial epithelial somite and a second wave emanating from the dorsomedial lip (DML), rostral and caudal edges of the dermomyotome (Kahane, N., Cinnamon, Y. and Kalcheim, C. (1998a) Mech. Dev. 74, 59–73; Kahane, N., Cinnamon, Y. and Kalcheim, C. (1998b) Development 125, 4259–4271). In this study, we have addressed the development and precise fate of the ventrolateral lip (VLL) in non-limb regions of the axis. To this end, fluorescent vital dyes were iontophoretically injected in the center o
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4

Hadchouel, J., S. Tajbakhsh, M. Primig, et al. "Modular long-range regulation of Myf5 reveals unexpected heterogeneity between skeletal muscles in the mouse embryo." Development 127, no. 20 (2000): 4455–67. http://dx.doi.org/10.1242/dev.127.20.4455.

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The myogenic factor Myf5 plays a key role in muscle cell determination, in response to signalling cascades that lead to the specification of muscle progenitor cells. We have adopted a YAC transgenic approach to identify regulatory sequences that direct the complex spatiotemporal expression of this gene during myogenesis in the mouse embryo. Important regulatory regions with distinct properties are distributed over 96 kb upstream of the Myf5 gene. The proximal 23 kb region directs early expression in the branchial arches, epaxial dermomyotome and in a central part of the myotome, the epaxial in
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5

Wilson-Rawls, J., C. R. Hurt, S. M. Parsons, and A. Rawls. "Differential regulation of epaxial and hypaxial muscle development by paraxis." Development 126, no. 23 (1999): 5217–29. http://dx.doi.org/10.1242/dev.126.23.5217.

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In vertebrates, skeletal muscle is derived from progenitor cell populations located in the epithelial dermomyotome compartment of the each somite. These cells become committed to the myogenic lineage upon delamination from the dorsomedial and dorsolateral lips of the dermomyotome and entry into the myotome or dispersal into the periphery. Paraxis is a developmentally regulated transcription factor that is required to direct and maintain the epithelial characteristic of the dermomyotome. Therefore, we hypothesized that Paraxis acts as an important regulator of early events in myogenesis. Expres
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6

Bober, E., B. Brand-Saberi, C. Ebensperger, et al. "Initial steps of myogenesis in somites are independent of influence from axial structures." Development 120, no. 11 (1994): 3073–82. http://dx.doi.org/10.1242/dev.120.11.3073.

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Formation of paraxial muscles in vertebrate embryos depends upon interactions between early somites and the neural tube and notochord. Removal of both axial structures results in a complete loss of epaxial myotomal muscle, whereas hypaxial and limb muscles develop normally. We report that chicken embryos, after surgical removal of the neural tube at the level of the unsegmented paraxial mesoderm, start to develop myotomal cells that express transcripts for the muscle-specific regulators MyoD and myogenin. These cells also make desmin, indicating that the initial steps of axial skeletal muscle
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7

Ahmed, Mohi U., Louise Cheng, and Susanne Dietrich. "Establishment of the epaxial–hypaxial boundary in the avian myotome." Developmental Dynamics 235, no. 7 (2006): 1884–94. http://dx.doi.org/10.1002/dvdy.20832.

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8

Huang, Ruijin, and B. Christ. "Origin of the epaxial and hypaxial myotome in avian embryos." Anatomy and Embryology 202, no. 5 (2000): 369–74. http://dx.doi.org/10.1007/s004290000130.

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9

Pu, Qin, Aisha Abduelmula, Maryna Masyuk, et al. "The dermomyotome ventrolateral lip is essential for the hypaxial myotome formation." BMC Developmental Biology 13, no. 1 (2013): 37. http://dx.doi.org/10.1186/1471-213x-13-37.

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10

Pu, Qin, Aisha Abduelmula, Maryna Masyuk, et al. "Correction: The dermomyotome ventrolateral lip is essential for the hypaxial myotome formation." BMC Developmental Biology 13, no. 1 (2013): 41. http://dx.doi.org/10.1186/1471-213x-13-41.

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11

Balakrishnan-Renuka, Ajeesh, Gabriela Morosan-Puopolo, Faisal Yusuf, et al. "ATOH8, a regulator of skeletal myogenesis in the hypaxial myotome of the trunk." Histochemistry and Cell Biology 141, no. 3 (2013): 289–300. http://dx.doi.org/10.1007/s00418-013-1155-0.

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12

Bajanca, Fernanda, Marta Luz, Marilyn J. Duxson, and Sólveig Thorsteinsdóttir. "Integrins in the mouse myotome: Developmental changes and differences between the epaxial and hypaxial lineage." Developmental Dynamics 231, no. 2 (2004): 402–15. http://dx.doi.org/10.1002/dvdy.20136.

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13

Kablar, Boris, Atsushi Asakura, Kirsten Krastel, et al. "MyoD and Myf-5 define the specification of musculature of distinct embryonic origin." Biochemistry and Cell Biology 76, no. 6 (1998): 1079–91. http://dx.doi.org/10.1139/o98-107.

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Mounting evidence supports the notion that Myf-5 and MyoD play unique roles in the development of epaxial (originating in the dorso-medial half of the somite, e.g. back muscles) and hypaxial (originating in the ventro-lateral half of the somite, e.g. limb and body wall muscles) musculature. To further understand how Myf-5 and MyoD genes co-operate during skeletal muscle specification, we examined and compared the expression pattern of MyoD-lacZ (258/-2.5lacZ and MD6.0-lacZ) transgenes in wild-type, Myf-5, and MyoD mutant embryos. We found that the delayed onset of muscle differentiation in the
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14

Marcelle, C., M. R. Stark, and M. Bronner-Fraser. "Coordinate actions of BMPs, Wnts, Shh and noggin mediate patterning of the dorsal somite." Development 124, no. 20 (1997): 3955–63. http://dx.doi.org/10.1242/dev.124.20.3955.

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Shortly after their formation, somites of vertebrate embryos differentiate along the dorsoventral axis into sclerotome, myotome and dermomyotome. The dermomyotome is then patterned along its mediolateral axis into medial, central and lateral compartments, which contain progenitors of epaxial muscle, dermis and hypaxial muscle, respectively. Here, we used Wnt-11 as a molecular marker for the medial compartment of dermomyotome (the ‘medial lip’) to demonstrate that BMP in the dorsal neural tube indirectly induces formation of the medial lip by up-regulating Wnt-1 and Wnt-3a (but not Wnt-4) expre
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15

Kucharczuk, K. L., C. M. Love, N. M. Dougherty, and D. J. Goldhamer. "Fine-scale transgenic mapping of the MyoD core enhancer: MyoD is regulated by distinct but overlapping mechanisms in myotomal and non-myotomal muscle lineages." Development 126, no. 9 (1999): 1957–65. http://dx.doi.org/10.1242/dev.126.9.1957.

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Skeletal muscle lineage determination is regulated by the myogenic regulatory genes, MyoD and Myf-5. Previously, we identified a 258 bp core enhancer element 20 kb 5′ of the MyoD gene that regulates MyoD gene activation in mouse embryos. To elucidate the cis control mechanisms that regulate MyoD transcription, we have mutagenized the entire core enhancer using linker-scanner mutagenesis, and have tested the transcriptional activity of enhancer mutants using lacZ reporter gene expression in transgenic mouse embryos. In total, 83 stable transgenic lines representing 17 linker-scanner mutations w
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16

López-Delgado, Alejandra C., Irene Delgado, Vanessa Cadenas, Fátima Sánchez-Cabo, and Miguel Torres. "Axial skeleton anterior-posterior patterning is regulated through feedback regulation between Meis transcription factors and retinoic acid." Development 148, no. 1 (2020): dev193813. http://dx.doi.org/10.1242/dev.193813.

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ABSTRACTVertebrate axial skeletal patterning is controlled by co-linear expression of Hox genes and axial level-dependent activity of HOX protein combinations. MEIS transcription factors act as co-factors of HOX proteins and profusely bind to Hox complex DNA; however, their roles in mammalian axial patterning remain unknown. Retinoic acid (RA) is known to regulate axial skeletal element identity through the transcriptional activity of its receptors; however, whether this role is related to MEIS/HOX activity remains unknown. Here, we study the role of Meis in axial skeleton formation and its re
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17

Tajbakhsh, S., U. Borello, E. Vivarelli, et al. "Differential activation of Myf5 and MyoD by different Wnts in explants of mouse paraxial mesoderm and the later activation of myogenesis in the absence of Myf5." Development 125, no. 21 (1998): 4155–62. http://dx.doi.org/10.1242/dev.125.21.4155.

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Activation of myogenesis in newly formed somites is dependent upon signals derived from neighboring tissues, namely axial structures (neural tube and notochord) and dorsal ectoderm. In explants of paraxial mesoderm from mouse embryos, axial structures preferentially activate myogenesis through a Myf5-dependent pathway and dorsal ectoderm preferentially through a MyoD-dependent pathway. Here we report that cells expressing Wnt1 will preferentially activate Myf5 while cells expressing Wnt7a will preferentially activate MyoD. Wnt1 is expressed in the dorsal neural tube and Wnt7a in dorsal ectoder
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18

Jayne, B., and G. Lauder. "Are muscle fibers within fish myotomes activated synchronously? Patterns of recruitment within deep myomeric musculature during swimming in largemouth bass." Journal of Experimental Biology 198, no. 3 (1995): 805–15. http://dx.doi.org/10.1242/jeb.198.3.805.

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The myomeric axial musculature of fish has a complex three-dimensional morphology, yet within-myomere motor patterns have not been examined to determine whether all portions of each myomere are activated synchronously during locomotion. To gain insight into recruitment patterns in the deep myomeric musculature of fish, we implanted a series of fine-wire electrodes arranged in a vertical row of six electrodes and a longitudinal row of three electrodes on both the left and right sides of each of five largemouth bass (Micropterus salmoides). After recording electromyograms (EMGs) during the burst
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