Table S1.

Cell compositions of different transplant groups in the study

Group	Islet module	Other module	Comment	Label
Islet modules with HUVEC; primary test group	Islets, HUVEC	HUVEC	No adMSC	Islet modules (+HUVEC)
Islet modules without HUVEC; islets in collagen gel only	Islets	Collagen only*	No HUVEC, no adMSC, only collagen	Islet modules (−HUVEC)
Islet modules with HUVEC and adMSC	Islets, HUVEC, adMSC	HUVEC, adMSC	1 × 106 adMSC/mL of collagen	Islet modules (+adMSC)
No-islet modules	HUVEC modules, no islets, no adMSC		No mixing of groups required; one type of module	No-islet modules
Free islets	N/A		No additional cells	Free islets

^*These modules are larger than 0.05 mL, because collagen gel alone does not contract without HUVEC.