1 EXHIBIT 23.1 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the incorporation of our report included in this Form 10-K into Introgen Therapeutics, Inc.'s previously filed Registration Statements on Form S-8 (Registration No's: 333-58648 and 333-59826) dated April 10, 2001 and April 30, 2001. /s/ Arthur Andersen LLP Austin, Texas September 13, 2001