要更好地了解細(xì)胞水平的調(diào)控方式(cellular regulation),需要分析控制細(xì)胞功能的復(fù)雜的網(wǎng)絡(luò)系統(tǒng)中不同的信號(hào)通路之間的關(guān)系。Ma'ayan等人分析了海馬的神經(jīng)元(hippocampal neurons)中參與1259種信號(hào)通路的545種成分組成的網(wǎng)絡(luò)結(jié)構(gòu)。用圖論的方法(graph theory methods),研究者分析了系統(tǒng)中由配體引起(ligand-induced)的信號(hào)流。通過(guò)對(duì)輸入和輸出接點(diǎn)的特性(specification)的分析來(lái)辯明各個(gè)功能模塊(functional modules)。實(shí)驗(yàn)的結(jié)果開(kāi)始揭示諸如暫時(shí)(transient)和永久(stable)細(xì)胞功能的變化(即細(xì)胞的可塑性)中信息是如何傳遞的。
圖:Assembly of a function-based cellular network.
參閱文獻(xiàn):Formation of Regulatory Patterns During Signal Propagation in a Mammalian Cellular Network, Science, Vol 309, Issue 5737, 1078-1083 , 12 August 2005