context: The cytoskeleton has been well studied and an increasing amount of evidence has demonstrated the significance of the cytoskeleton in stem cell differentiation [1 , 2 , 40].
answer_0: Ideally, there was a breakthrough in our understanding of the early events in cellular testing of substrate rigidity.
answer_1: Here, there was a breakthrough in our understanding of the early events in cellular testing of substrate rigidity.
answer_2: Recently, there was a breakthrough in our understanding of the early events in cellular testing of substrate rigidity.
answer_3: Lastly, there was a breakthrough in our understanding of the early events in cellular testing of substrate rigidity.
answer_4: Specifically, there was a breakthrough in our understanding of the early events in cellular testing of substrate rigidity.
answer_5: Afterward there was a breakthrough in our understanding of the early events in cellular testing of substrate rigidity.
answer_6: Sometimes, there was a breakthrough in our understanding of the early events in cellular testing of substrate rigidity.
answer_7: Hopefully, there was a breakthrough in our understanding of the early events in cellular testing of substrate rigidity.
answer_8: Subsequently, there was a breakthrough in our understanding of the early events in cellular testing of substrate rigidity.
answer_9: Particularly, there was a breakthrough in our understanding of the early events in cellular testing of substrate rigidity.