PMID- 18480841 OWN - NLM STAT- MEDLINE DCOM- 20081030 LR - 20230202 IS - 1523-1747 (Electronic) IS - 0022-202X (Linking) VI - 128 IP - 11 DP - 2008 Nov TI - Induction of T-cell responses against cutaneous T-cell lymphomas ex vivo by autologous dendritic cells transfected with amplified tumor mRNA. PG - 2631-2639 LID - S0022-202X(15)33662-9 [pii] LID - 10.1038/jid.2008.125 [doi] AB - Sezary syndrome (SzS), the leukemic variant of cutaneous T-cell lymphomas, is incurable. Dendritic cells (DCs) transfected with tumor mRNA can stimulate antitumor immunity in certain cancer patients. In this study, we determined whether mRNAs from Sezary cells could be used for loading DCs and stimulating antitumor immunity. Autologous DCs were generated from monocytes of the peripheral blood from 10 patients with SzS. Total RNA was extracted from Sezary cells and amplified by T7 in vitro transcription. The induction of antitumor IFN-gamma and granzyme B (GrB)-producing cytotoxic T lymphocytes (CTL) by RNA-transfected DCs was determined by ELISPOT assays. We found that IFN-gamma was required for IL-12p70 production by monocyte-derived DCs from SzS. The oncogenic transcription factor Twist and the tyrosine kinase receptor EphA4 were expressed in total RNA from Sezary cells and the paired amplified mRNAs. RNA-transfected DCs induced antitumor IFN-gamma-producing CTLs in 7 of 10 subjects and GrB-producing CTLs in 6 of 9 subjects. Both CD3+CD8+ T cells and CD4+CD25+ T cells were expanded without induction of regulatory T cells. These data support the concept of using tumor mRNA for a vaccine strategy that requires small amounts of tumor cells without need for specific antigens in patients with SzS. FAU - Ni, Xiao AU - Ni X AD - Department of Dermatology, The University of Texas, MD Anderson Cancer Center, Houston, Texas, USA. Electronic address: xiaoni@mdanderson.org. FAU - Richmond, Heather M AU - Richmond HM AD - Department of Dermatology, The University of Texas, MD Anderson Cancer Center, Houston, Texas, USA. FAU - Liao, Xingsheng M AU - Liao XM AD - Department of Dermatology, The University of Texas, MD Anderson Cancer Center, Houston, Texas, USA; Division of Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA. FAU - Decker, William K AU - Decker WK AD - Department of Stem Cell Transplantation and Cell Therapy, The University of Texas, MD Anderson Cancer Center, Houston, Texas, USA. FAU - Shiue, Lisa H AU - Shiue LH AD - Department of Dermatology, The University of Texas, MD Anderson Cancer Center, Houston, Texas, USA. FAU - Shpall, Elizabeth J AU - Shpall EJ AD - Department of Stem Cell Transplantation and Cell Therapy, The University of Texas, MD Anderson Cancer Center, Houston, Texas, USA. FAU - Duvic, Madeleine AU - Duvic M AD - Department of Dermatology, The University of Texas, MD Anderson Cancer Center, Houston, Texas, USA. LA - eng GR - K24 CA86815/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20080515 PL - United States TA - J Invest Dermatol JT - The Journal of investigative dermatology JID - 0426720 RN - 0 (CD3 Complex) RN - 0 (Interleukin-2 Receptor alpha Subunit) RN - 0 (RNA, Messenger) RN - 0 (Twist-Related Protein 1) RN - 82115-62-6 (Interferon-gamma) RN - EC 2.7.10.1 (Receptor, EphA4) RN - EC 3.4.21.- (Granzymes) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - CD3 Complex/metabolism MH - CD4-Positive T-Lymphocytes/metabolism/pathology MH - CD8-Positive T-Lymphocytes/metabolism/pathology MH - Female MH - Granzymes/metabolism MH - Humans MH - Interferon-gamma/metabolism MH - Interleukin-2 Receptor alpha Subunit/metabolism MH - Langerhans Cells/*immunology/pathology MH - Leukocytes, Mononuclear/metabolism/pathology MH - Male MH - Middle Aged MH - RNA, Messenger/*genetics MH - Receptor, EphA4/metabolism MH - Sezary Syndrome/genetics/*immunology/pathology MH - Skin Neoplasms/genetics/*immunology/pathology MH - T-Lymphocytes, Cytotoxic/*immunology/pathology MH - Transfection/*methods MH - Twist-Related Protein 1/metabolism EDAT- 2008/05/16 09:00 MHDA- 2008/10/31 09:00 CRDT- 2008/05/16 09:00 PHST- 2008/05/16 09:00 [pubmed] PHST- 2008/10/31 09:00 [medline] PHST- 2008/05/16 09:00 [entrez] AID - S0022-202X(15)33662-9 [pii] AID - 10.1038/jid.2008.125 [doi] PST - ppublish SO - J Invest Dermatol. 2008 Nov;128(11):2631-2639. doi: 10.1038/jid.2008.125. Epub 2008 May 15.