Distinct Role of Antigen-specific T Helper Type 1 (Th1) and Th2 Cells in Tumor Eradication In Vivo

@article{citeulike:1423239, abstract = {The role of T helper type 1 (Th1) and Th2 cells in tumor immunity was investigated using Th cells induced from ovalbumin (OVA)-specific T cell receptor transgenic mice. Although Th1 cells exhibited stronger cytotoxicity than Th2 cells, both cell types completely eradicated tumors when transferred into mice bearing A20 tumor cells transfected with the OVA gene (A20-OVA). Th1 cells eradicated the tumor mass by inducing cellular immunity, whereas Th2 cells destroyed the tumor by inducing tumor necrosis. Both Th1 and Th2 cells required CD8+ T cells to eliminate tumors, and neither of these cells were able to completely eliminate A20-OVA tumors from T and B cell-deficient RAG2-/- mice. Mice cured from tumors by Th1 and Th2 cell therapy rejected A20-OVA upon rechallenge, but CD8+ cytotoxic T lymphocytes were induced only from spleen cells prepared from cured mice by Th1 cell therapy. Moreover, we demonstrated that Th1 and Th2 cells used distinct adhesion mechanisms during tumor eradication: the leukocyte function-associated antigen (LFA)-1-dependent cell-cell adhesion step was essential for Th1 cell therapy, but not for Th2 cell therapy. These findings demonstrated for the first time the distinct role of antigen-specific Th1 and Th2 cells during eradication of established tumors in vivo. 10.1084/jem.190.5.617}, author = {Nishimura, Takashi and Iwakabe, Kenji and Sekimoto, Masashi and Ohmi, Yasushi and Yahata, Takashi and Nakui, Minoru and Sato, Takehito and Habu, Sonoko and Tashiro, Hiroyuki and Sato, Marimo and Ohta, Akio }, citeulike-article-id = {1423239}, doi = {10.1084/jem.190.5.617}, journal = {J. Exp. Med.}, keywords = {th2-tumor}, month = {September}, number = {5}, pages = {617--628}, posted-at = {2007-06-29 16:56:58}, priority = {2}, title = {Distinct Role of Antigen-specific T Helper Type 1 (Th1) and Th2 Cells in Tumor Eradication In Vivo}, url = {http://dx.doi.org/10.1084/jem.190.5.617}, volume = {190}, year = {1999} }

TY - JOUR ID - citeulike:1423239 L3 - citeulike-article-id:1423239 TI - Distinct Role of Antigen-specific T Helper Type 1 (Th1) and Th2 Cells in Tumor Eradication In Vivo JF - J. Exp. Med. VL - 190 IS - 5 SP - 617 EP - 628 N2 - The role of T helper type 1 (Th1) and Th2 cells in tumor immunity was investigated using Th cells induced from ovalbumin (OVA)-specific T cell receptor transgenic mice. Although Th1 cells exhibited stronger cytotoxicity than Th2 cells, both cell types completely eradicated tumors when transferred into mice bearing A20 tumor cells transfected with the OVA gene (A20-OVA). Th1 cells eradicated the tumor mass by inducing cellular immunity, whereas Th2 cells destroyed the tumor by inducing tumor necrosis. Both Th1 and Th2 cells required CD8+ T cells to eliminate tumors, and neither of these cells were able to completely eliminate A20-OVA tumors from T and B cell-deficient RAG2-/- mice. Mice cured from tumors by Th1 and Th2 cell therapy rejected A20-OVA upon rechallenge, but CD8+ cytotoxic T lymphocytes were induced only from spleen cells prepared from cured mice by Th1 cell therapy. Moreover, we demonstrated that Th1 and Th2 cells used distinct adhesion mechanisms during tumor eradication: the leukocyte function-associated antigen (LFA)-1-dependent cell-cell adhesion step was essential for Th1 cell therapy, but not for Th2 cell therapy. These findings demonstrated for the first time the distinct role of antigen-specific Th1 and Th2 cells during eradication of established tumors in vivo. 10.1084/jem.190.5.617 KW - th2-tumor AU - Nishimura, Takashi AU - Iwakabe, Kenji AU - Sekimoto, Masashi AU - Ohmi, Yasushi AU - Yahata, Takashi AU - Nakui, Minoru AU - Sato, Takehito AU - Habu, Sonoko AU - Tashiro, Hiroyuki AU - Sato, Marimo AU - Ohta, Akio PY - 1999/09/06/ UR - http://dx.doi.org/10.1084/jem.190.5.617 ER -