HPCA and neoplasm: Among down‐regulated transcripts were those encoding: sushi, nidogen and EGF‐like domains 1 (Sned1), an extracellular matrix protein found in embryonic kidneys 63 and implicated in tumour invasion 64; hippocalcin (Hpca), a calcium sensor implicated in neurodegeneration 65; solute carrier family 26A7 (Slc26a7), a Cl−/HCO3− exchanger 66; solute carrier family 26A1 (Slc4a1), an anion exchanger 67; and tenascin XB (Tnxb).