EX-23 8 a2042491zex-23.txt EXHIBIT 23 Exhibit 23.0 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in the Registration Statement on Forms S-8, (File Nos. 333-52796, 333-34780, 33-80036, 33-80048 and 333-62017) and the Registration Statement on Forms S-3 (File Nos. 333-43204, 333-52736, 33-64021, 333-08607, 333-56755, 333-64761 and 333-89341), of AVANT Immunotherapeutics, Inc. (f/k/a TCell Sciences, Inc.) of our report dated February 2, 2001 relating to the financial statements of AVANT Immunotherapeutics, Inc. (f/k/a TCell Sciences, Inc.) which appears in the Annual Report on Form 10-K for the year ended December 31, 2000. PricewaterhouseCoopers LLP Boston, Massachusetts March 27, 2001