To determine if control and Cx31 partially depleted tumors differentially induced lipolysis, we collected tumor and NAT from HCC1143 GJB3WT, GJB3Med, and GJB3Low tumor-bearing mice, as well as residual mammary glands from the two GJB3Low mice that were transplanted but never developed tumors. The gene discussed is GJB3; the disease is neoplasm.