 TORONTO and HOUSTON, Aug. 05, 2022 GLOBE NEWSWIRE -- Medicenna Therapeutics Corp. Medicenna or the Company NASDAQ: MDNA TSX: MDNA, a clinical stage immuno-oncology company, today announced that it will host a conference call and live webcast on August 15, 2022 at 8:30 AM ET to report its first quarter fiscal 2023 financial results and operational highlights. 