PMID- 16817691 OWN - NLM STAT- MEDLINE DCOM- 20060809 LR - 20201212 IS - 1092-0684 (Electronic) IS - 1092-0684 (Linking) VI - 9 IP - 6 DP - 2000 Dec 15 TI - Treatment of a patient by vaccination with autologous dendritic cells pulsed with allogeneic major histocompatibility complex class I-matched tumor peptides. Case Report. PG - e8 AB - Dendritic cells (DCs) are antigen-presenting cells that play a central role in the initiation and modulation of antitumor immune responses. In this pilot study, we investigated the ability of autologous DCs pulsed ex vivo with allogeneic major histocompatibility complex class I-matched glioblastoma peptides to stimulate host antitumor immune responses when injected as a vaccine. A patient with recurrent brainstem glioblastoma multiforme (GBM) received a series of three intradermal immunizations of antigen-pulsed DCs on an outpatient basis following surgical debulking of her posterior fossa tumor. Dendritic cell vaccination was well tolerated, and no clinical signs of autoimmunity or experimental allergic encephalomyelitis were detected. She developed a measurable cellular immune response against the allogeneic glioblastoma peptides used in her vaccine preparation, as demonstrated by in vitro T-cell proliferation assays. In addition, increased T-cell infiltration was noted within the intracranial tumor site in the biopsy sample obtained following DC vaccination. An objective clinical response, however, was not evident, and this patient eventually died 21 months after her disease was diagnosed. To our knowledge, this is the first patient with brain cancer ever to be treated with DC-based immunotherapy. This case illustrates that vaccination with DCs pulsed with acid-eluted glioblastoma peptides is feasible and can induce systemic antigen-specific immunity in a patient with recurrent GBM. Additional studies are necessary to determine the optimum DC doses and antigen loading conditions that may translate into clinical effectiveness and survival benefit for patients with brain tumors. Phase I trials for malignant glioma are currently underway. FAU - Liau, L M AU - Liau LM AD - Division of Neurosurgery, Department of Neurology, University of California at Los Angeles School of Medicine, Los Angeles, California 90095-6901, USA. lliau@mednet.ucla.edu FAU - Black, K L AU - Black KL FAU - Martin, N A AU - Martin NA FAU - Sykes, S N AU - Sykes SN FAU - Bronstein, J M AU - Bronstein JM FAU - Jouben-Steele, L AU - Jouben-Steele L FAU - Mischel, P S AU - Mischel PS FAU - Belldegrun, A AU - Belldegrun A FAU - Cloughesy, T F AU - Cloughesy TF LA - eng PT - Case Reports PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20001215 PL - United States TA - Neurosurg Focus JT - Neurosurgical focus JID - 100896471 RN - 0 (Antigens, Neoplasm) RN - 0 (Cancer Vaccines) RN - 0 (Histocompatibility Antigens Class I) SB - IM MH - Antigens, Neoplasm/immunology MH - Brain Neoplasms/immunology/pathology/*therapy MH - Cancer Vaccines/administration & dosage/immunology MH - Dendritic Cells/*immunology/transplantation MH - Fatal Outcome MH - Female MH - Glioblastoma/immunology/pathology/*therapy MH - Histocompatibility Antigens Class I/*immunology MH - Humans MH - Immunotherapy, Adoptive/*methods MH - Magnetic Resonance Imaging MH - Middle Aged EDAT- 2006/07/05 09:00 MHDA- 2006/08/10 09:00 CRDT- 2006/07/05 09:00 PHST- 2006/07/05 09:00 [pubmed] PHST- 2006/08/10 09:00 [medline] PHST- 2006/07/05 09:00 [entrez] AID - 090608 [pii] AID - 10.3171/foc.2000.9.6.9 [doi] PST - epublish SO - Neurosurg Focus. 2000 Dec 15;9(6):e8. doi: 10.3171/foc.2000.9.6.9.