2015 Journal of tissue engineering and regenerative medicine
* Silk fibroin scaffolds enhance cell commitment of adult rat cardiac progenitor cells.
- The use of three-dimensional (3D) cultures may induce cardiac progenitor cells to synthesize their own extracellular matrix (ECM) and sarcomeric proteins to initiate cardiac differentiation. 3D cultures grown on synthetic scaffolds may favour the implantation and survival of stem cells for cell therapy when pharmacological therapies are not efficient in curing cardiovascular diseases and when organ transplantation remains the only treatment able to rescue the patient's life. Silk fibroin-based scaffolds may be used to increase cell affinity to biomaterials and may be chemically modified to improve cell adhesion. In the present study, porous, partially orientated and electrospun nanometric nets were used. Cardiac progenitor cells isolated from adult rats were seeded by capillarity in the 3D structures and cultured inside inserts for 21 days. Under this condition, the cells expressed a high level of sarcomeric and cardiac proteins and synthesized a great quantity of ECM. In particular, partially orientated scaffolds induced the synthesis of titin, which is a fundamental protein in sarcomere assembly.
=>以下の, (治療, 試練, 刑罰)を受けて, 下部の, の下に, ・・の下に
Overview of adj under
The adj under has 2 senses (first 2 from tagged texts)
1. (2) nether, under -- (located below or beneath something else; "nether garments"; "the under
parts of a machine")
2. (1) under -- (lower in rank, power, or authority; "an under secretary")
Overview of adv under
The adv under has 8 senses (first 1 from tagged texts)
1. (2) under -- (down to defeat, death, or ruin; "their competitors went under")
2. under -- (through a range downward; "children six and under will be admitted free")
3. under -- (into unconsciousness; "this will put the patient under")
4. under -- (in or into a state of subordination or subjugation; "we must keep our disappointment
under")
5. under -- (below some quantity or limit; "fifty dollars or under")
6. under -- (below the horizon; "the sun went under")
7. under -- (down below; "get under quickly!")
8. under, below -- (further down; "see under for further discussion")
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