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		题名	作者	年代	出处	被引量
	1	Probing the subcellular nanostructure of engineered human cardiomyocytes in 3D tissue显示文摘The structural and functional maturation of human induced pluripotent stem cell-derived cardiomyocytes(hiPSC-CMs)is essential for pharmaceutical testing,disease modeling,and ultimately therapeutic use.Multicellular 3D-tissue platforms have improved the functional maturation of hiPSC-CMs,but probing cardiac contractile properties in a 3D environment remains challenging,especially at depth and in live tissues.Using small-angle X-ray scattering(SAXS)imaging,we show that hiPSC-CMs matured and examined in a 3D environment exhibit a periodic spatial arrangement of the myofilament lattice,which has not been previously detected in hiPSC-CMs.The contractile force is found to correlate with both the scattering intensity(R^(2)=0.44)and lattice spacing(R^(2)=0.46).The scattering intensity also correlates with lattice spacing(R^(2)=0.81),suggestive of lower noise in our structural measurement than in the functional measurement.Notably,we observed decreased myofilament ordering in tissues with a myofilament mutation known to lead to hypertrophic cardiomyopathy(HCM).Our results highlight the progress of human cardiac tissue engineering and enable unprecedented study of structural maturation in hiPSC-CMs.	Josh Javor Jourdan K.Ewoldt Paige E.Cloonan Anant Chopra Rebeccah J.Luu Guillaume Freychet Mikhail Zhernenkov Karl Ludwig Jonathan G.Seidman Christine E.Seidman Christopher S.Chen David J.Bishop	2021	Microsystems & Nanoengineering2021，7，1：	0

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