A worm gel-based 3D model to elucidate the paracrine interaction between multiple myeloma and mesenchymal stem cells.

"Declaration of Competing Interest The authors declare no competing financial interests or personal relationships that could have appeared to influence the work reported in this paper."

"The authors would like to thank Mr. Anthony Sloan for editorial assistance. This work was funded by the European Commission funding under the AngioMatTrain 7th Framework Programme [Grant Agreement Number 317304, NMP-2014-646075, PITN-GA-2012-317304] and by the research grant from Science Foundation Ireland (SFI) co-funded under the European Regional Development Fund [Grant Number 13/RC/2073]. The authors acknowledge the use of the facilities of the Centre for Microscopy and Imaging at the National University of Ireland Galway, a facility that is co-funded by the Irish Government's Programme for Research in Third Level Institutions, Cycles 4 and 5, National Development Plan 2007–2013."