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Organogenesis

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https://www.readbyqxmd.com/read/28647906/exogenous-gdf11-induces-cardiac-and-skeletal-muscle-dysfunction-and-wasting
#1
Teresa A Zimmers, Yanling Jiang, Meijing Wang, Tiffany W Liang, Joseph E Rupert, Ernie D Au, Francesco E Marino, Marion E Couch, Leonidas G Koniaris
Growth differentiation factor 11 (GDF11), a TGF-beta superfamily member, is highly homologous to myostatin and essential for embryonic patterning and organogenesis. Reports of GDF11 effects on adult tissues are conflicting, with some describing anti-aging and pro-regenerative activities on the heart and skeletal muscle while others opposite or no effects. Herein, we sought to determine the in vivo cardiac and skeletal muscle effects of excess GDF11. Mice were injected with GDF11 secreting cells, an identical model to that used to initially identify the in vivo effects of myostatin...
July 2017: Basic Research in Cardiology
https://www.readbyqxmd.com/read/28647832/genetic-dissection-of-adventitious-shoot-regeneration-in-roses-by-employing-genome-wide-association-studies
#2
Thi Hong Nhung Nguyen, Dietmar Schulz, Traud Winkelmann, Thomas Debener
We analysed the capacity to regenerate adventitious shoots in 96 rose genotypes and found 88 SNP markers associated with QTLs, some of which are derived from candidate genes for shoot regeneration. In an association panel of 96 rose genotypes previously analysed for petal colour, we conducted a genome-wide association study on the capacity of leaf petioles for direct shoot regeneration. Shoot regeneration rate and shoot ratio (number of shoots/total number of explants) were used as phenotypic descriptors for regeneration capacity...
June 24, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28646540/animal-embryotoxicity-studies-of-key-non-artemisinin-antimalarials-and-use-in-women-in-the-first-trimester
#3
REVIEW
Robert L Clark
The World Health Organization currently recommends quinine+clindamycin for use against malaria in the first trimester. This may soon change to recommending artemisinin-based combination therapies (standard duration of dosing = 3 days). The non-artemisinin partner drugs include amodiaquine, lumefantrine, mefloquine, piperaquine, sulfadoxine+pyrimethamine, and pyronaridine. For quinine, clindamycin, and mefloquine and the combinations of sulfadoxine+pyrimethamine and artemether+lumefantrine, there are reports (including studies without internal comparison groups) that combined describe 304 to >1100 exposures of women in the first trimester for each drug with no conclusive evidence of adverse effects on pregnancy at therapeutic doses...
June 24, 2017: Birth defects research
https://www.readbyqxmd.com/read/28642062/lrh-1-senses-signaling-from-phosphatidylcholine-to-regulate-the-expansion-growth-of-digestive-organs-via-synergy-with-wnt-%C3%AE-catenin-signaling-in-zebrafish
#4
Gang Zhai, Jia Song, Tingting Shu, Junjun Yan, Xia Jin, Jiangyan He, Zhan Yin
Liver receptor homolog-1 (LRH-1) is an orphan nuclear receptor that is critical for the growth and proliferation of cancer cells and other biological processes, including lipid transportation and metabolism, sexual determination and steroidogenesis. However, because homozygous lrh-1(-/-) mice die in utero, the regulatory mechanisms involved in embryonic development mediated by this receptor are poorly understood. In the present study, we performed transcription activator-like effector nuclease (TALEN)-mediated loss-of-function assays, taking advantage of zebrafish external fertilization, to investigate the function of lrh-1...
April 27, 2017: Journal of Genetics and Genomics, Yi Chuan Xue Bao
https://www.readbyqxmd.com/read/28640012/interspecies-organogenesis-derived-tissues-for-transplantation
#5
Jon S Odorico
No abstract text is available yet for this article.
July 2017: Transplantation
https://www.readbyqxmd.com/read/28634271/development-of-the-thyroid-gland
#6
REVIEW
Mikael Nilsson, Henrik Fagman
Thyroid hormones are crucial for organismal development and homeostasis. In humans, untreated congenital hypothyroidism due to thyroid agenesis inevitably leads to cretinism, which comprises irreversible brain dysfunction and dwarfism. Elucidating how the thyroid gland - the only source of thyroid hormones in the body - develops is thus key for understanding and treating thyroid dysgenesis, and for generating thyroid cells in vitro that might be used for cell-based therapies. Here, we review the principal mechanisms involved in thyroid organogenesis and functional differentiation, highlighting how the thyroid forerunner evolved from the endostyle in protochordates to the endocrine gland found in vertebrates...
June 15, 2017: Development
https://www.readbyqxmd.com/read/28634269/human-development-heredity-and-evolution
#7
REVIEW
Ryuichi Nishinakamura, Minoru Takasato
From March 27-29 2017, the RIKEN Center for Developmental Biology held a symposium entitled 'Towards Understanding Human Development, Heredity, and Evolution' in Kobe, Japan. Recent advances in technologies including stem cell culture, live imaging, single-cell approaches, next-generation sequencing and genome editing have led to an expansion in our knowledge of human development. Organized by Yoshiya Kawaguchi, Mitinori Saitou, Mototsugu Eiraku, Tomoya Kitajima, Fumio Matsuzaki, Takashi Tsuji and Edith Heard, the symposium covered a broad range of topics including human germline development, epigenetics, organogenesis and evolution...
June 15, 2017: Development
https://www.readbyqxmd.com/read/28630873/an-integrative-developmental-genomics-and-systems-biology-approach-to-identify-an-in-vivo-sox-trio-mediated-gene-regulatory-network-in-murine-embryos
#8
Wenqing Jean Lee, Sumantra Chatterjee, Sook Peng Yap, Siew Lan Lim, Xing Xing, Petra Kraus, Wenjie Sun, Xiaoming Hu, V Sivakamasundari, Hsiao Yun Chan, Prasanna R Kolatkar, Shyam Prabhakar, Thomas Lufkin
Embryogenesis is an intricate process involving multiple genes and pathways. Some of the key transcription factors controlling specific cell types are the Sox trio, namely, Sox5, Sox6, and Sox9, which play crucial roles in organogenesis working in a concerted manner. Much however still needs to be learned about their combinatorial roles during this process. A developmental genomics and systems biology approach offers to complement the reductionist methodology of current developmental biology and provide a more comprehensive and integrated view of the interrelationships of complex regulatory networks that occur during organogenesis...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28628844/serum-micrornas-in-buffalo-cows-potential-biomarkers-of-pregnancy
#9
Gabriella Guelfi, Valentina Stefanetti, Silvio De Luca, Andrea Giontella, Vittoria Lucia Barile, Olimpia Barbato
MiRNAs (microRNA) constitute a large family of single-stranded, non-coding small RNAs. Although the functions and target genes of most miRNAs are still unknown, it has been well established that they are involved in embryogenesis, organogenesis and neonatal birth. In recent decades, interest in buffalo breeding has largely increased worldwide thus focusing the attention on this species as a dairy purpose animal. Problems related to long calving interval, late puberty and seasonal anestrus hamper reproductive efficiency in this species...
June 4, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28626764/does-chemotherapy-for-gynecological-malignancies-during-pregnancy-cause-fetal-growth-restriction
#10
REVIEW
Nabil Abdalla, Magdalena Bizoń, Robert Piórkowski, Paweł Stanirowski, Krzysztof Cendrowski, Włodzimierz Sawicki
Cancer and pregnancy rarely coincide. Gynecological cancers are among the most common malignancies to occur during pregnancy, and chemotherapy with or without surgery is the primary treatment option. The main concern of administering chemotherapy during pregnancy is congenital malformation, although it can be avoided by delaying treatment until after organogenesis. The dose, frequency, choice of chemotherapeutic agents, time of treatment commencement, and method of administration can be adjusted to obtain the best maternal treatment outcomes while simultaneously minimizing fetal toxicity...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28625689/multiple-and-complex-influences-of-connexins-and-pannexins-on-cell-death
#11
REVIEW
Jérôme Gilleron, Diane Carette, Dominique Segretain, Georges Pointis
Cell death is a fundamental process for organogenesis, immunity and cell renewal. During the last decades a broad range of molecular tools were identified as important players for several different cell death pathways (apoptosis, pyroptosis, necrosis, autosis…). Aside from these direct regulators of cell death programs, several lines of evidence proposed connexins and pannexins as potent effectors of cell death. In the present review we discussed the potential roles played by connexins, pannexins and innexins in the different cell death programs at different scales from gap junction intercellular communication to protein-protein interactions...
June 15, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28624497/new-paradigms-for-the-hedgehog-signaling-network-in-mammary-gland-development-and-breast-cancer
#12
REVIEW
Teresa Monkkonen, Michael T Lewis
The Hedgehog signaling network regulates organogenesis, cell fate, proliferation, survival, and stem cell self-renewal in many mammalian tissues. Aberrant activation of the Hedgehog signaling network is present in ~25% of all cancers, including breast. Altered expression of Hedgehog network genes in the mammary gland can elicit phenotypes at many stages of development. However, synthesizing a cohesive mechanistic model of signaling at different stages of development has been difficult. Emerging data suggest that this difficulty is due, in part, to non-canonical and tissue compartment-specific (i...
June 14, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28623666/sox2-regulates-acinar-cell-development-in-the-salivary-gland
#13
Elaine Emmerson, Alison May, Sara Nathan, Noel Cruz Pacheco, Carlos O Lizama, Lenka Maliskova, Ann C Zovein, Yin Shen, Marcus O Muench, Sarah M Knox
Acinar cells play an essential role in the secretory function of exocrine organs. Despite this requirement, how acinar cells are generated during organogenesis is unclear. Using the acini-ductal network of the developing human and murine salivary gland, we demonstrate an unexpected role for SOX2 and parasympathetic nerves in generating the acinar lineage that has broad implications for epithelial morphogenesis. Despite SOX2 being expressed by progenitors that give rise to both acinar and duct cells, genetic ablation of SOX2 results in a failure to establish acini but not ducts...
June 17, 2017: ELife
https://www.readbyqxmd.com/read/28621424/ocular-vessel-patterning-in-zebrafish-is-indirectly-regulated-by-hedgehog-signaling
#14
Omri Weiss, Rivka Kaufman, Eyal Mishani, Adi Inbal
The superficial ocular vasculature of the embryonic zebrafish develops in a highly stereotypic manner and hence provides a convenient model for studying molecular mechanisms that regulate vascular patterning. We have used transgenic zebrafish embryos in which all endothelial cells express enhanced Green Fluorescent Protein and small molecule inhibitors to examine the contribution of two signaling pathways, vascular endothelial growth factor (VEGF) and Hedgehog (Hh) pathways, to the development of the superficial system...
2017: International Journal of Developmental Biology
https://www.readbyqxmd.com/read/28621413/the-sumo-system-in-caenorhabditis-elegans-development
#15
Limor Broday
SUMO, a small ubiquitin-like modifier, is a highly conserved post translational modification and a central regulatory system in eukaryotes. Sumoylation modulates the activities of multiple proteins, mainly in the nucleus, such as transcription factors, chromatin modifiers, and proteins involved in DNA replication and repair. However, SUMO also modifies substrates in the cytoplasm, mitochondria, plasma and ER membrane. This review summarizes our current knowledge on the functions of sumoylation in C. elegans development...
2017: International Journal of Developmental Biology
https://www.readbyqxmd.com/read/28620832/the-pro-renin-receptor-and-its-interaction-partners
#16
REVIEW
Jörg Peters
The prorenin receptor was originally discovered as a receptor that binds renin and prorenin, thereby inducing pro-fibrotic intracellular signal cascades. These effects are partially mediated in vitro by angiotensin (ANG) and partially independent of ANG. Consequently, inhibitors of the interaction between the prorenin and the (pro)renin receptor (PRR) were designed hoping that they may prevent fibrotic tissue damage, for instance, in the kidney. However, this concept was challenged by the fact that overexpression of the PRR was not harmful at all, whereas depletion of the PRR was lethal or markedly detrimental...
June 15, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28619362/peroxiredoxin-1-from-cuttlefish-sepiella-maindroni-molecular-characterization-of-development-and-its-immune-response-against-vibrio-alginolyticus
#17
Weiwei Song, Changkao Mu, Ronghua Li, Chunlin Wang
The aim of this work was constructive to understand the function of peroxiredoxin (PRDX) family member Peroxiredoxin 1 in Sepiella maindroni (SmPrx1) through molecular mechanisms of reproduction, embryonic development and immune responses to Vibrio alginolyticus. The full-length cDNA of SmPrx1 was of 1062 bp, contains a 5' untranslated region (UTR) of 79bp, a 3' UTR of 359 bp, an open reading frame of 624 bp encoding 207 amino acids. The conserved peroxidase catalytic center "FYPLDFTFVCPTEI" and "GEVCPA" were observed in the sequence of SmPrx1; this indicated that it was a member of 2-Cys Prx...
June 12, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28618344/developmental-mechanism-of-muscle-tendon-bone-complex-in-the-fetal-soft-palate
#18
Michiyuki Nara, Kei Kitamura, Masahito Yamamoto, Ryotaro Nagakura, Keisuke Mitomo, Satoru Matsunaga, Shinichi Abe
OBJECTIVE: This study was performed to investigate how the palatine aponeurosis, medial pterygoid process (MPP) of the sphenoid bone, and tensor veli palatini (TVP) muscle form the pulley: muscle-tendon-bone complex. DESIGN: Mice at embryonic day (ED) 14-17 were used as sample in this study. Azan staining was performed to observe the morphology, and immunohistochemical staining of desmin was performed to closely observe the development of the myotendinous junction...
June 6, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28616246/fibroblast-reticular-cells-engineer-a-blastema-extracellular-network-during-digit-tip-regeneration-in-mice
#19
Luis Marrero, Jennifer Simkin, Mimi Sammarco, Ken Muneoka
The regeneration blastema which forms following amputation of the mouse digit tip is composed of undifferentiated cells bound together by an organized network of fibers. A monoclonal antibody (ER-TR7) that identifies extracellular matrix (ECM) fibers produced by fibroblast reticular cells during lymphoid organogenesis was used to characterize the ECM of the digit, the blastema, and the regenerate. Digit fibroblast reticular cells produce an ER-TR7(+) ECM network associated with different tissues and represent a subset of loose connective tissue fibroblasts...
April 2017: Regeneration
https://www.readbyqxmd.com/read/28614297/multilineage-communication-regulates-human-liver-bud-development-from-pluripotency
#20
J Gray Camp, Keisuke Sekine, Tobias Gerber, Henry Loeffler-Wirth, Hans Binder, Malgorzata Gac, Sabina Kanton, Jorge Kageyama, Georg Damm, Daniel Seehofer, Lenka Belicova, Marc Bickle, Rico Barsacchi, Ryo Okuda, Emi Yoshizawa, Masaki Kimura, Hiroaki Ayabe, Hideki Taniguchi, Takanori Takebe, Barbara Treutlein
Conventional two-dimensional differentiation from pluripotency fails to recapitulate cell interactions occurring during organogenesis. Three-dimensional organoids generate complex organ-like tissues; however, it is unclear how heterotypic interactions affect lineage identity. Here we use single-cell RNA sequencing to reconstruct hepatocyte-like lineage progression from pluripotency in two-dimensional culture. We then derive three-dimensional liver bud organoids by reconstituting hepatic, stromal, and endothelial interactions, and deconstruct heterogeneity during liver bud development...
June 14, 2017: Nature
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