Open Access. Powered by Scholars. Published by Universities.®

Cell and Developmental Biology Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 3 of 3

Full-Text Articles in Cell and Developmental Biology

Cloning And Analysis Of Reck During Early Xenopus Laevis Development, Jessica Willson Nov 2012

Cloning And Analysis Of Reck During Early Xenopus Laevis Development, Jessica Willson

Electronic Thesis and Dissertation Repository

Extracellular matrix (ECM) remodeling is crucial for the development and maintenance of multicellular organisms. Degradation of ECM components occurs through the activity of matrix metalloproteinases (MMPs) and their inhibitors. Reversion-inducing cysteine-rich protein with Kazal motifs (RECK) gene encodes a membrane-anchored protein and plays an important role in mediating ECM remodeling by inhibiting MMPs. To date, few in vivo studies exist examining RECK during development. The present study focuses on cloning and examining the expression of RECK during early Xenopus laevis development. A mature cDNA clone of the RECK gene was generated. RT-PCR, in situ hybridization, and immunohistochemistry were used to …


Tissue Specific Porcupine Deletion Reveals A Novel Role For Ectodermal Wnts In Musculotendon Development, Aaron P. Smith Jul 2012

Tissue Specific Porcupine Deletion Reveals A Novel Role For Ectodermal Wnts In Musculotendon Development, Aaron P. Smith

Theses and Dissertations

The Wnt family of secreted proteins consists of 19 family members (in the mouse) and is known to signal through multiple pathways that regulate crucial processes in the development of almost all tissues. Dissecting the roles of individual Wnts has been hampered due to functional redundancy that exists between family members. We made use of a conditional allele of the acyltransferase, Porcupine (Porcn), that is required for the secretion of all Wnt ligands, and the Msx2Cre deleter to eliminate the secretion of all Wnt ligands from the ventral limb ectoderm, ventral abdominal ectoderm, and urogenital ectoderm. Phenotypically the …


The Developmental And Adaptive Role Of Mitogen Activated Protein Kinase Pathways During Preimplantation Development, Christine E. Bell Mar 2012

The Developmental And Adaptive Role Of Mitogen Activated Protein Kinase Pathways During Preimplantation Development, Christine E. Bell

Electronic Thesis and Dissertation Repository

The preimplantation period of development represents the highest interval of embryonic loss throughout pregnancy. It is therefore imperative that we elucidate the mechanisms involved in regulating preimplantation embryonic responses to stress and that govern development. The MAPK pathways are involved in both responding to environmental stress and regulation of development throughout embryogenesis, and are therefore good candidates to study the mechanisms involved in preimplantation embryonic adaptation to stress and development. The preimplantation embryo culminates in the development of a fluid filled structure called the blastocyst. It is at this stage the first differentiation events occur and the trophectoderm (TE), which …