Federal Grant Award Summary

The Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) awarded University of Massachusetts Boston a $515,382 Project Grant under the Child Health and Human Development Extramural Research program (CFDA 93.865) beginning June 1, 2026, and concluding February 28, 2031. This research initiative investigates cellular regulation of pattern formation in regenerating limbs using the Mexican axolotl as a model organism. The project will generate fundamental scientific knowledge regarding how anterior and posterior cell populations direct the precise regeneration of missing limb structures, addressing critical gaps in understanding how cell composition ratios influence both molecular gene expression patterns and anatomical outcomes during tissue regeneration.

The research will deliver three primary scientific products: (1) spatial transcriptomic and gene expression mapping defining natural distribution patterns of anterior/posterior and proximal/distal patterning genes and cell populations; (2) experimental assessments of how manipulated cell ratios alter regenerative positioning and structure formation through targeted grafting approaches; and (3) mechanistic insights into how asymmetric cell organization is reestablished during regeneration. These findings are anticipated to advance understanding of developmental patterning mechanisms with potential long-term applications for clinical regenerative medicine strategies in human limb amputation cases.