329 research outputs found

    The «encargos» of Don Quixote in the Gazeta de México (1784-1805)

    Get PDF
    Durante la segunda mitad del siglo XVIII se difundieron en España ediciones ilustradas de Don Quijote; sus editores, impresores y libreros ofrecieron los volúmenes en diferentes publicaciones periódicas del mundo hispánico. El siguiente artículo refiere cómo la prensa novohispana anunció la obra cumbre de Miguel de Cervantes, las búsquedas en la Hemeroteca Nacional Digital de México (HNDM) proporcionaron anuncios que ofrecieron la historia a los lectores de la Gazeta de México. Las notas aparecieron en la sección «Encargos», vendieron tres ediciones madrileñas y dos imitaciones a la obra entre 1784 a 1805. Por medio de la publicación novohispana se distinguieron impresos españoles a la venta en el mercado mexicano, y a los distribuidores de los libros y cuadernos durante los últimos años de Nueva España.During the second half of the eighteenth century, illustrated editions of Don Quixote began to emerge in Spain. Its editors, printers and booksellers offered the publications to different Hispanic periodicals. The following article describes how the New Spain press publicized Miguel de Cervantes' remarkable history. To discover it, the Hemeroteca Nacional Digital de México (HNDM) provided advertisements about the singular knight. This information materialized in the Gazeta de México, «Encargos» section between 1784 to 1805. During this period three editions of the work as well as two imitations were sold. Through the ads in the publication, publishers and printers from different editions are distinguished, and the booksellers who distributed Don Quixote in the final years of New Spain are identified

    HAPTEN-SPECIFIC IgE ANTIBODY RESPONSES IN MICE : II. COOPERATIVE INTERACTIONS BETWEEN ADOPTIVELY TRANSFERRED T AND B LYMPHOCYTES IN THE DEVELOPMENT OF IgE RESPONSE

    Get PDF
    The present studies have established conditions for the demonstration of cooperative interactions between specific T and B lymphocyte populations in the development of IgE antibody responses in vivo in mice. This has been accomplished by utilizing a system which permits the successful adoptive transfer to irradiated recipients of DNP-specific secondary IgE responses with spleen cells from suitably primed syngeneic donor mice. Thus, adoptively transferred DNP-KLH or DNP-ASC-primed spleen cells produced high levels of anti-DNP antibodies of both IgE and IgG antibody classes in response to challenge with the appropriate homologous priming conjugate but failed to develop more than meager responses to the reciprocal heterologous conjugate. However, when spleen cells from donors primed to the second carrier were concomitantly transferred with hapten-primed lymphocytes, secondary IgE ant-DNP responses were consistently obtained upon challenge with the heterologous conjugate. Moreover, we have been able to elicit augmented primary IgE anti-DNP antibody responses to either DNP-ASC or DNP-KLH after adoptive transfer of spleen cells from donors primed only to the carrier, ASC or KLH, respectively. This adoptive transfer system has enabled us to provide direct proof for the participation of θ-bearing T lymphocytes in antibody responses of the IgE class. Thus, the capacity of ASC-primed spleen cells to effectively cooperate with the DNP-KLH-primed lymphocytes in the adoptive secondary response to DNP-ASC could be abolished by in vitro treatment of such cells with anti-θ serum plus complement. This was true not only for the anti-DNP response of the IgG antibody class, but for the IgE antibody class as well. These studies have, furthermore, demonstrated the capacity to stimulate secondary anti-DNP antibody production in vivo by the concomitant administration of the DNP and relevant carrier determinants on separate molecules. This was more readily seen in the IgE than in the IgG antibody class. Thus, DNP-ASC-primed cells developed significant IgE, but more variable IgG, anti-DNP responses upon challenge with DNP-KLH plus unconjugated ASC. Antibody responses of both classes elicited in this manner were appreciably improved by the transfer of additional carrier (ASC)-primed cells. These and other results presented herein suggest that IgE B lymphocyte precursors may be inherently more sensitive than IgG B cells to at least certain of the functions of T lymphocytes concerned with regulatory mechanisms involved in antibody production

    IMMUNOLOGICAL TOLERANCE IN BONE MARROW-DERIVED LYMPHOCYTES : I. EVIDENCE FOR AN INTRACELLULAR MECHANISM OF INACTIVATION OF HAPTEN-SPECIFIC PRECURSORS OF ANTIBODY-FORMING CELLS

    Get PDF
    Administration of the 2,4-dinitrophenyl (DNP) derivative of the copolymer of D-glutamic acid and D-lysine (D-GL) to inbred mice induces a state of DNP-specific tolerance in such animals irrespective of their immune status at the time of treatment. Taking advantage of the relative ease with which DNP-D-GL can induce tolerance in an animal previously primed with an immunogenic DNP-carrier conjugate, we have established conditions for tolerance induction in an adoptive cell transfer system. Thus, the adoptive secondary anti-DNP antibody response of DNP-keyhole limpet hemocyanin (KLH)-primed spleen cells was completely, or almost completely, abolished by exposure of such cells to DMP-D-GL either in vivo or in vitro. Tolerance induction in vivo occurred irrespective of whether the DNP-primed cells were exposed to DNP-D-GL in the donor animal before adoptive transfer or in recipient mice after transfer. In the latter situation, it was possible to show that tolerance induction in this model occurs very rapidly (1 hr) and with relatively low doses of tolerogen (50 µg). Incubation of DNP-KLH-primed cells with DNP-D-GL in vitro under varying culture conditions also resulted in depression of the adoptive secondary response of such cells, although the kinetics and degree of tolerance induction in this way were slightly different from that obtained by in vivo tolerization. Utilizing the adoptive transfer tolerance system, it was possible to approach certain questions concerning the mechanism of tolerance induction and fate of tolerant bone marrow-derived (B) lymphocytes in the DNP-D-GL model. The possibility that suppression of anti-DNP antibody from the DNP-D-GL reflects blocking of surface receptor molecules on B lymphocytes has been ruled out by several experimental observations. The most conclusive evidence on this point derives from the failure of enzymatic treatment with trypsin to reverse the tolerant state induced by in vitro exposure of primed cells to DNP-D-GL, whereas trypsinization completely restored the immunocompetence of DNP-KLH-primed cells rendered unresponsive by exposure to DNP-ovalbumin in vitro. The present studies also demonstrate that the tolerant state induced by DNP-D-GL represents a predominantly irreversible inactivation of specific B lymphocytes. This conclusion is derived from experiments in which it was found that tolerance was maintained through as many as two serial adoptive transfers performed over a period of time of at least 24 days from the single exposure of such cells to the tolerogen. Moreover, the possibility that maintenance of tolerance through such serial transfers was due to inadvertent transfer of tolerogenic doses of DNP-D-GL was definitively ruled out. It appears, therefore, that DNP-specific tolerance induced by DNP-D-GL is an example of irreversible inhibition of cell reactivity to antigen reflecting yet-to-be-determined events at the intra- and subcellular levels
    corecore