2015 Computer methods in biomechanics and biomedical engineering
* Role of differential adhesion in cell cluster evolution: from vasculogenesis to cancer metastasis.
- Cell-cell and cell-matrix adhesions are fundamental to numerous physiological processes, including angiogenesis, tumourigenesis, metastatic spreading and wound healing. We use cellular potts model to computationally predict the organisation of cells within a 3D matrix. The energy potentials regulating cell-cell (JCC) and cell-matrix (JMC) adhesive interactions are systematically varied to represent different, biologically relevant adhesive conditions. Chemotactically induced cell migration is also addressed. Starting from a cluster of cells, variations in relative cell adhesion alone lead to different cellular patterns such as spreading of metastatic tumours and angiogenesis. The combination of low cell-cell adhesion (high JCC) and high heterotypic adhesion (low JMC) favours the fragmentation of the original cluster into multiple, smaller cell clusters (metastasis). Conversely, cellular systems exhibiting high-homotypic affinity (low JCC) preserve their original configuration, avoiding fragmentation (organogenesis). For intermediate values of JCC and JMC (i.e. JCC/JMC ∼ 1), tubular and corrugated structures form. Fully developed vascular trees are assembled only in systems in which contact-inhibited chemotaxis is activated upon cell contact. Also, the rate of secretion, diffusion and sequestration of chemotactic factors, cell deformability and motility do not significantly affect these trends. Further developments of this computational model will predict the efficacy of therapeutic interventions to modulate the diseased microenvironment by directly altering cell cohesion.
=>利用, 使う, 利用する, (体, 能力など)を働かす, 使用, 利用法
Overview of noun use
The noun use has 7 senses (first 6 from tagged texts)
1. (90) use, usage, utilization, utilisation, employment, exercise -- (the act of using; "he warned
against the use of narcotic drugs"; "skilled in the utilization of computers")
2. (18) function, purpose, role, use -- (what something is used for; "the function of an auger is to
bore holes"; "ballet is beautiful but what use is it?")
3. (7) use -- (a particular service; "he put his knowledge to good use"; "patrons have their uses")
4. (1) consumption, economic consumption, usance, use, use of goods and services -- ((economics) the
utilization of economic goods to satisfy needs or in manufacturing; "the consumption of energy has
increased steadily")
5. (1) habit, use -- ((psychology) an automatic pattern of behavior in reaction to a specific
situation; may be inherited or acquired through frequent repetition; "owls have nocturnal habits";
"she had a habit twirling the ends of her hair"; "long use had hardened him to it")
6. (1) manipulation, use -- (exerting shrewd or devious influence especially for one's own
advantage; "his manipulation of his friends was scandalous")
7. use, enjoyment -- ((law) the exercise of the legal right to enjoy the benefits of owning
property; "we were given the use of his boat")
Overview of verb use
The verb use has 6 senses (first 3 from tagged texts)
1. (603) use, utilize, utilise, apply, employ -- (put into service; make work or employ for a
particular purpose or for its inherent or natural purpose; "use your head!"; "we only use Spanish at
home"; "I can't use this tool"; "Apply a magnetic field here"; "This thinking was applied to many
projects"; "How do you utilize this tool?"; "I apply this rule to get good results"; "use the
plastic bags to store the food"; "He doesn't know how to use a computer")
2. (12) use, habituate -- (take or consume (regularly or habitually); "She uses drugs rarely")
3. (8) use, expend -- (use up, consume fully; "The legislature expended its time on school
questions")
4. use -- (seek or achieve an end by using to one's advantage; "She uses her influential friends to
get jobs"; "The president's wife used her good connections")
5. practice, apply, use -- (avail oneself to; "apply a principle"; "practice a religion"; "use care
when going down the stairs"; "use your common sense"; "practice non-violent resistance")
6. use -- (habitually do something (use only in the past tense); "She used to call her mother every
week but now she calls only occasionally"; "I used to get sick when I ate in that dining hall";
"They used to vacation in the Bahamas")
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