in contrast to liver , the levels of enzyme in lymphoid tissues were found to vary with immunoglobulin secretory activity , assays of lymphoid cells and their transformed counterparts showed that the enzyme contents of cells actively secreting immunoglobulin were 1-2 orders of magnitude higher than that of unstimulated b cells or non-immunoglobulin-producing t cells .
C0024296
lymphoid tissues
C0003273
immunoglobulin-producing