Evolution of g-type lysozymes in metazoa: insights into immunity and digestive adaptations [PDF]
Exploring the evolutionary dynamics of lysozymes is critical for advancing our knowledge of adaptations in immune and digestive systems. Here, we characterize the distribution of a unique class of lysozymes known as g-type, which hydrolyze key components
Krishanu Mukherjee+2 more
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Physiology and evolution of voltage-gated calcium channels in early diverging animal phyla: Cnidaria, Placozoa, Porifera and Ctenophora [PDF]
Voltage-gated calcium (Cav) channels serve dual roles in the cell, where they can both depolarize the membrane potential for electrical excitability, and activate transient cytoplasmic Ca2+ signals.
Adriano Senatore, Hamad Raiss, Phuong Le
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Transepithelial Cytophagy by Trichoplax adhaerens F. E. Schulze (Placozoa) Feeding on Yeast [PDF]
After accidental observations of unicellular algae trapped in the intermediate layer of Trichoplax, dead yeast cells were offered systematically as a food. Some of them could be found several hours later engulfed by the big tetraploid fibre cells closely beneath the dorsal epithelium of the animal.
H Wenderoth
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Evolution of glial cells: a non-bilaterian perspective [PDF]
Nervous systems of bilaterian animals generally consist of two cell types: neurons and glial cells. Despite accumulating data about the many important functions glial cells serve in bilaterian nervous systems, the evolutionary origin of this abundant ...
Larisa Sheloukhova, Hiroshi Watanabe
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Amino acids integrate behaviors in nerveless placozoans [PDF]
Placozoans are the simplest known free-living animals without recognized neurons and muscles but a complex behavioral repertoire. However, mechanisms and cellular bases of behavioral coordination are unknown.
Mikhail A. Nikitin+4 more
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Studying Placozoa WBR in the Simplest Metazoan Animal, Trichoplax adhaerens
AbstractPlacozoans are a promising model system to study fundamental regeneration processes in a morphologically and genetically very simple animal. We here provide a brief introduction to the enigmatic Placozoa and summarize the state of the art of animal handling and experimental manipulation possibilities.
Hans-Jürgen Osigus+7 more
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Trichoplax adhaerens F. E. Schulze (Placozoa): The Formation of Swarmers [PDF]
Abstract Flageilated swarmers representing an alternative mode of asexual reproduction are budded off as hollow spheres at the dorsal surface. They are covered by cells of the dorsal epithelium and the interior cavity is lined by ventral epithelium. Fiber cells are in the interspace.
Martin Thiemann, August Ruthmann
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Early Animal Origin of BACE1 APP/Aβ Proteolytic Function [PDF]
Alzheimer’s disease is characterized, in part, by the accumulation of β-amyloid (Aβ) in the brain. Aβ is produced via the proteolysis of APP by BACE1 and γ-secretase.
James A. Langeland+6 more
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Tolerance of Placozoa for temperate climates: Evidence for known and new placozoan clades in the southern waters of Australia [PDF]
Bree A. Wright+9 more
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Transposon-derived transcription factors across metazoans
Transposable elements (TE) could serve as sources of new transcription factors (TFs) in plants and some other model species, but such evidence is lacking for most animal lineages. Here, we discovered multiple independent co-options of TEs to generate 788
Krishanu Mukherjee+2 more
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