Background: The presence of B cells in early stage non-small cell lung cancer (NSCLC) is associated with longer survival, however, the role these cells play in the generation and maintenance of anti-tumor immunity is unclear. B cells differentiate into a variety of subsets with differing characteristics and functions. To date, there is limited information on the specific B cell subsets found within NSCLC. To better understand the composition of the B cell populations found in NSCLC we have begun characterizing B cells in lung tumors and have detected a population of B cells that are CD79A(+)CD27(-)IgD(-). These CD27(-)IgD(-)(double-negative) B cells have previously been characterized as unconventional memory B cells and have been detected in some autoimmune diseases and in the elderly population but have not been detected previously in tumor tissue. Methods: A total of 15 fresh untreated NSCLC tumors and 15 matched adjacent lung control tissues were dissociated and analyzed by intracellular flow cytometry to detect the B cell-related markers CD79A, CD27 and IgD. All CD79A(+) B cells subsets were classified as either naive (CD27(-)IgD(+)), affinity-matured (CD27(+)IgD(-)), early memory/germinal center cells (CD27(+)IgD(+)) or double-negative B cells (CD27(-)IgD(-)). Association of double-negative B cells with clinical data including gender, age, smoking status, tumor diagnosis and pathologic differentiation status were also examined using the logistic regression analysis for age and student's t-test for all other variables. Associations with other B cell subpopulations were examined using Spearman's rank correlation. Results: We observed that double-negative B cells were frequently abundant in lung tumors compared to normal adjacent controls (13 out of 15 cases), and in some cases made up a substantial proportion of the total B cell compartment. The presence of double-negative cells was also found to be inversely related to the presence of affinity-matured B cells within the tumor, Spearman's coefficient of -0.76. Conclusions: This study is the first to observe the presence of CD27(-)IgD(-)double-negative B cells in human NSCLC and that this population is inversely correlated with traditional affinity-matured B cell populations.

This article introduces the concept of badass femininity, a marginalized femininity captured in the performances of contemporary b-girls (women breakdancers) and blues women of the 1920s. The author uses the work of Hortense Spillers, Maria Lugones, Chela Sandoval, and Angela Davis to argue that non-normative gender performances from the fringes of society are necessary consequence of histories of enslavement, genocide, and exploitation. Badass femininity is a one version of a multiplicity of femininities. It re-signifies qualities typically associated with masculinity through women whose work in dance and music move these gender performances from the margins to center stage.

Submitted by Marlene Santos (marlene.bc.ufg@gmail.com) on 2016-04-04T20:19:20Z No. of bitstreams: 2 Dissertação - Laura Ferreira Oliveira - 2015.pdf: 1240339 bytes, checksum: 93a5f81eb7e7be949c0fb3fbffedb6c9 (MD5) license_rdf: 19874 bytes, checksum: 38cb62ef53e6f513db2fb7e337df6485 (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2016-04-05T11:08:20Z (GMT) No. of bitstreams: 2 Dissertação - Laura Ferreira Oliveira - 2015.pdf: 1240339 bytes, checksum: 93a5f81eb7e7be949c0fb3fbffedb6c9 (MD5) license_rdf: 19874 bytes, checksum: 38cb62ef53e6f513db2fb7e337df6485 (MD5) / Made available in DSpace on 2016-04-05T11:08:20Z (GMT). No. of bitstreams: 2 Dissertação - Laura Ferreira Oliveira - 2015.pdf: 1240339 bytes, checksum: 93a5f81eb7e7be949c0fb3fbffedb6c9 (MD5) license_rdf: 19874 bytes, checksum: 38cb62ef53e6f513db2fb7e337df6485 (MD5) Previous issue date: 2015-10-13 / To assess the persistence of anti-HBs protective titers after seven years of primary immunization in children who received the first dose of the Brazilian vaccine against Hepatitis B within the first 12 hours of life and who achieved protective titers after 30-45 days of vaccination (GMT = 491.78 mIU / mL), blood samples were collected between 2014 and 2015 in 147 children. Concurrently held evaluating the persistence of protective titers correlate the application site of VLC vaccine (vastu lateral thigh) or VG (ventrogluteal). Was found that 66,2% of these had no protective titers of anti-HBs, presenting GMT = 6.75 mIU / mL. A positive correlation was found between high levels of anti-HBs after primary vaccination and after seven years (rho Spearman = 0.446, p = <0.0001). None of the participants was positive for anti-HBc marker. When compared to the presence of protective titers between the two vaccine sites of application, there wasn't difference between the two groups (p = 0.756). Keywords: hepatitis B; Anti-hepatitis B antibodies; Immunization; Intramuscular injections. / Para evaluar la persistencia de títulos protectores después de siete años de la inmunización primaria en niños que recibieron la primera dosis de vacuna en las primeras 12 horas de vida y que lograron títulos protectores (GMT = 491,78 mUI / mL). Fueron reclutados en 2014-2015, 147 niños para evaluar la persistencia de títulos protectores de anticuerpos contra HBs después de siete años y correlacionar el sitio de aplicación de la vacuna VLC o VG. Se encontró que 65,3% de éstos no tenían títulos de anti-HBs protectores, presentando GMT 6,75 mUI / mL. Se encontraron una correlación positiva entre los altos niveles de anti-HBs después de la vacunación primaria y después de siete años (rho de Spearman = 0,446, p = <0,0001). Ninguno de los participantes fue positivo para el marcador anti-Hbc. Cuando se compara la presencia de títulos protectores entre los dos sitios de aplicación de la vacuna, se encontró que no había diferencia entre los dos grupos (p = 0,756). Palabras / Para avaliar a persistência de títulos protetores de anti-HBs após sete anos da imunização primaria em crianças que receberam a primeira dose da vacina brasileira contra hepatite b nas primeiras 12 horas de vida e que alcançaram títulos protetores após 30 – 45 dias da vacinação (GMT = 491,78 mUI/mL), foram coletadas amostras de sangue, entre 2014 e 2015, de 147 crianças. Concomitantemente realizou-se a avaliação da persistência de títulos protetores correlacionando o local de aplicação da vacina VLC (vasto lateral da coxa) ou VG (ventroglútea). Constatou-se que 66,2% destes não possuíam títulos de anti-HBs protetores, apresentando GMT de 6,75 mUI/mL. Uma correlação positiva foi verificada entre títulos elevados de anti-HBs pós vacinação primaria e após sete anos (rho de Spearman = 0,446; p = < 0,0001). Nenhum dos participantes apresentou positividade para o marcador anti-HBc. Quando comparada a presença de títulos protetores entre os dois locais de aplicação da vacina, verificou-se que não houve diferença entre os dois grupos, (p = 0,756). Palavras-chave: hepatite B; Anticorpos anti-hepatite B; Imunização; Injeções Intramusculares.

Master of Science / An analysis of B to pi0 l nu and B to eta l nu decays using the neutrino reconstruction technique is presented. The dataset consists of 535 million BB pairs in 492 fb^−1 of data collected with the Belle detector at the KEKB asymmetric e+e− collider. The measured B to pi0 l nu and B to eta l nu branching fractions are B(B to pi0 l nu) = (0.68 ± 0.09 ± 0.11 ± 0.04)×10^−4 and B(B to eta l nu) = (0.42 ± 0.13)×10^−4. The errors on the pi0 measurement are statistical, experimental systematic, and due to b to u l nu modelling, respectively; that on the eta is statistical only. The B to pi0 l nu branching fraction is measured in three q^2 bins: q^2 < 8 GeV^2, 8 GeV^2 ≤ q^2 < 16 GeV^2, and 16 GeV^2 ≤ q^2. The Cabibbo-Kobayashi-Maskawa quark-mixing matrix element |Vub| is extracted from the B to pi0 l nu branching fraction using a Light-Cone Sum Rules form factor extrapolated to the full q^2 range, and is found to be |Vub| = (3.29 ± 0.23 ± 0.27 ± 0.05)×10^−3, where the errors are statistical, experimental systematic, and theoretical, respectively.

Master of Science / An analysis of B to pi0 l nu and B to eta l nu decays using the neutrino reconstruction technique is presented. The dataset consists of 535 million BB pairs in 492 fb^−1 of data collected with the Belle detector at the KEKB asymmetric e+e− collider. The measured B to pi0 l nu and B to eta l nu branching fractions are B(B to pi0 l nu) = (0.68 ± 0.09 ± 0.11 ± 0.04)×10^−4 and B(B to eta l nu) = (0.42 ± 0.13)×10^−4. The errors on the pi0 measurement are statistical, experimental systematic, and due to b to u l nu modelling, respectively; that on the eta is statistical only. The B to pi0 l nu branching fraction is measured in three q^2 bins: q^2 < 8 GeV^2, 8 GeV^2 ≤ q^2 < 16 GeV^2, and 16 GeV^2 ≤ q^2. The Cabibbo-Kobayashi-Maskawa quark-mixing matrix element |Vub| is extracted from the B to pi0 l nu branching fraction using a Light-Cone Sum Rules form factor extrapolated to the full q^2 range, and is found to be |Vub| = (3.29 ± 0.23 ± 0.27 ± 0.05)×10^−3, where the errors are statistical, experimental systematic, and theoretical, respectively.

Diss. (sammanfattning) Stockholm : Karolinska institutet, 2005. / Härtill 5 uppsatser.

No description available.

Thesis (Ph. D.)--University of Washington, 2003. / Vita. Includes bibliographical references (leaves 98-113).

The thesis entitled “Enantioselective synthesis of didemniserinolipid, cladospolides, aspercyclide and muricatacin” is divided into three chapters. First chapter of the thesis deals with the formal total synthesis both enantiomers didemniserinolipid B from L-(+)-tartaric acid. Fused bicyclic acetals containing 6,8-dioxabicyclo[3.2.1]octane structural unit are wide spread in bio active natural products. Didemniserinolipids A-C possessing similar framework were isolated from a methanol extract of Didemnum sp., and some of the analogous compounds were found to be cytotoxic against P388, A549, and HT29 tumor cell lines. Pivotal reactions en route to the natural product include the elaboration of a γ-hydroxy amide derived from tartaric acid, olefin cross metathesis and Wittig olefination (Scheme 1). (+)-didemniserinolipid B Scheme 1: Retrosynthesis of both enantiomers of didemniserinolipid B. Second chapter of the thesis describes an enantiodivergent synthesis of macrolactones: In section A, enantiodivergent approach for the synthesis of cladospolides B, C and iso-cladospolide B is described. The cladospolides A-D are a class of 12-membered macrolactones, isolated from various cladosporium species of fungi and posseses a range of biological activities. Key reaction in the synthetic sequence involve formation of the required side chain by olefin cross metathesis. Selective Wittig olefination and lactonization afforded cladospolides (Scheme 2). Scheme 2: Enantiodivergent synthesis of cladospolide B, C and iso-cladospolide B. In section B, synthesis of bio-active biaryl ether lactone aspercyclide is described. Aspercyclides A-C are 11-membered biaryl ether lactones isolated from the extraction of the fermentation broth of an Apergillus. Sp.. Aspercyclides are reported to be moderately active (IC50 of 200 M for aspercyclide A) in the IgE receptor binding, which is key for the understanding of allergic disorders. A combination of Boord elimination and Mitsunobu reactions were employed to synthesize the key homoallylic alcohol from γ-hydroxy amide derived from tartaric acid. Elaboration of γ-hydroxy amide derived from L-(+)-tartaric acid is the key step for the synthesis of both enantiomers of the chiral homoallylic alcohol part, while Ullmann coupling reaction is employed to construct biaryl linkage. Ring closing metathesis (RCM) of the diene furnished required macrolactone (Scheme 3). Scheme 3: Enantiodivergent formal total synthesis of aspercyclide C. Last chapter of the thesis describes the enantioselective synthesis of muricatacin, a bio-active butanolide isolated as the major component of a scalemic mixture from the seeds of Annona muricata. Muricatacin was found to exhibit potent cytotoxicity toward several human tumor cell lines with SAR studies showing that activity is influenced significantly by the nature of the side chain. Stereoselective synthesis of ()-Muricatacin and structurally similar butanolide L-Factor has been accomplished from L-(+)-tartaric acid. Pivotal strategy in the synthesis is the elaboration of -hydroxy amide to the required allylic alcohol which on further reactions (including RCM) provided muricatacin (Scheme 4). Scheme 4: Stereoselective synthesis of Muricatacin and L-Factor. (For structural formula pl refer the thesis)

Thesis (Ph. D.)--University of Texas Southwestern Medical Center at Dallas, 2001. / Vita. Bibliography: 146-193.