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252) We observed new BD-like structures and immature hepatocytes after transplantation of DF sheets onto incised liver surfaces, and clarified that the origin of these BD-like structures and hepatocyte-like cells was the recipient liver.
2015 Journal of tissue engineering and regenerative medicine
* Transplanted fibroblast cell sheets promote migration of hepatic progenitor cells in the incised host liver in allogeneic rat model.
- Cell sheet engineering has been noted as a new and valuable approach in the tissue-engineering field. The objective of this study was to explore a procedure to induce hepatic progenitor cells and biliary duct structures in the liver. Sprague-Dawley rat dermal fibroblast (DF) sheets were transplanted into the incised surface of the liver of F344 nude rats. In the control group, an incision was made without transplantation of the DF sheets. Bile duct (BD)-like structures and immature hepatocyte-like cells were observed in the DF sheet transplant sites. These BD-like structures were cytokeratin-8-positive, while the hepatocyte-like cells were both OV-6-positive and α-fetoprotein-positive as well. The proliferation and differentiation of liver progenitor cells were not influenced by hepatectomy. We also transplanted DF sheets transfected with a plasmid encoding the enhanced yellow fluorescent protein target to mitochondria (pEYFP-Mito) by electroporation, and found that the new structures were pEYFP-Mito-negative. We observed new BD-like structures and immature hepatocytes after transplantation of DF sheets onto incised liver surfaces, and clarified that the origin of these BD-like structures and hepatocyte-like cells was the recipient liver. The present study described an aspect of the hepatic differentiation process induced at the site of liver injury.
=>新発見の, 新しい, 現代的な, 新参の
Overview of adj new
The adj new has 11 senses (first 5 from tagged texts)
1. (310) new -- (not of long duration; having just (or relatively recently) come into being or been
made or acquired or discovered; "a new law"; "new cars"; "a new comet"; "a new friend"; "a new
year"; "the New World")
2. (36) fresh, new, novel -- (original and of a kind not seen before; "the computer produced a
completely novel proof of a well-known theorem")
3. (11) raw, new -- (lacking training or experience; "the new men were eager to fight"; "raw
recruits")
4. (5) new, unexampled -- (having no previous example or precedent or parallel; "a time of
unexampled prosperity")
5. (3) new -- (other than the former one(s); different; "they now have a new leaders"; "my new car
is four years old but has only 15,000 miles on it"; "ready to take a new direction")
6. new -- (unaffected by use or exposure; "it looks like new")
7. newfangled, new -- ((of a new kind or fashion) gratuitously new; "newfangled ideas"; "she buys
all these new-fangled machines and never uses them")
8. New -- (in use after medieval times; "New Eqyptian was the language of the 18th to 21st
dynasties")
9. Modern, New -- (used of a living language; being the current stage in its development; "Modern
English"; "New Hebrew is Israeli Hebrew")
10. new, young -- ((of crops) harvested at an early stage of development; before complete maturity;
"new potatoes"; "young corn")
11. new -- (unfamiliar; "new experiences"; "experiences new to him"; "errors of someone new to the
job")
Overview of adv new
The adv new has 1 sense (first 1 from tagged texts)
1. (1) newly, freshly, fresh, new -- (very recently; "they are newly married"; "newly raised
objections"; "a newly arranged hairdo"; "grass new washed by the rain"; "a freshly cleaned floor";
"we are fresh out of tomatoes")
--- WordNet end ---