Lionel Feigenbaum

SELECTIVE RESTORATION OF THE SELENOPROTEIN POPULATION IN A MOUSE HEPATOCYTE SELENOPROTEINLESS BACKGROUND WITH DIFFERENT MUTANT SELENOCYSTEINE tRNAs LACKING (2007)

Carlson, Bradley A., Moustafa, Mohamed E., Sengupta, Aniruddha, Schweizer, Ulrich, Shrimali, Rajeev, Rao, Mahadev, ...

Novel mouse models were developed in which the hepatic selenoprotein population was targeted for removal by disrupting the selenocysteine (Sec) tRNA [Ser]Sec gene (trsp) and then selenoprotein...

Selective Inhibition of Selenocysteine tRNA Maturation and Selenoprotein Synthesis in Transgenic Mice Expressing Isopentenyladenosine-Deficient Selenocysteine tRNA (2001)

Moustafa, Mohamed E., Carlson, Bradley A., El-Saadani, Muhammed A., Kryukov, Gregory V., Sun, Qi-An, Harney, John W., ...

Selenocysteine (Sec) tRNA (tRNA [Ser]Sec) serves as both the site of Sec biosynthesis and the adapter molecule for donation of this amino acid to protein. The consequences on selenoprotein...

IL-2-induced activation-induced cell death is inhibited in IL-15 transgenic mice

Marks-Konczalik, Joanna, Dubois, Sigrid, Losi, Jacqueline M., Sabzevari, Helen, Yamada, Nobuo, Feigenbaum, Lionel, ...

A transgenic (Tg) mouse expressing human IL-15 was generated to define the role of IL-15 in the normal immune response. Overexpression of IL-15 resulted in an increase of NK, CD44hiCD8 memory T...

Selective Inhibition of Selenocysteine tRNA Maturation and Selenoprotein Synthesis in Transgenic Mice Expressing Isopentenyladenosine-Deficient Selenocysteine tRNA

Moustafa, Mohamed E., Carlson, Bradley A., El-Saadani, Muhammad A., Kryukov, Gregory V., Sun, Qi-An, Harney, John W., ...

Selenocysteine (Sec) tRNA (tRNA[Ser]Sec) serves as both the site of Sec biosynthesis and the adapter molecule for donation of this amino acid to protein. The consequences on selenoprotein...

Life without white fat: a transgenic mouse

Moitra, Jaideep, Mason, Mark M., Olive, Michelle, Krylov, Dmitry, Gavrilova, Oksana, Marcus-Samuels, Bernice, ...

We have generated a transgenic mouse with no white fat tissue throughout life. These mice express a dominant-negative protein, termed A-ZIP/F, under the control of the adipose-specific aP2...

Expression of Telomerase RNA Template, but Not Telomerase Reverse Transcriptase, Is Limiting for Telomere Length Maintenance In Vivo

Chiang, Y. Jeffrey, Hemann, Michael T., Hathcock, Karen S., Tessarollo, Lino, Feigenbaum, Lionel, Hahn, William C., ...

Telomerase consists of two essential components, the telomerase RNA template (TR) and telomerase reverse transcriptase (TERT). The haplo-insufficiency of TR was recently shown to cause one form of...

Poor immunogenicity of a self/tumor antigen derives from peptide–MHC-I instability and is independent of tolerance

Yu, Zhiya, Theoret, Marc R., Touloukian, Christopher E., Surman, Deborah R., Garman, Scott C., Feigenbaum, Lionel, ...

Understanding the mechanisms underlying the poor immunogenicity of human self/tumor antigens is challenging because of experimental limitations in humans. Here, we developed a human-mouse chimeric...

Differential cis-regulation of human versus mouse TERT gene expression in vivo: Identification of a human-specific repressive element

Horikawa, Izumi, Chiang, Y. Jeffrey, Patterson, Tricia, Feigenbaum, Lionel, Leem, Sun-Hee, Michishita, Eriko, ...

In vivo expression of human telomerase is significantly different from that of mouse telomerase. To assess the basis for this difference, a bacterial artificial chromosome clone containing the entire...

IL-2-induced activation-induced cell death is inhibited in IL-15 transgenic mice

Marks-Konczalik, Joanna, Dubois, Sigrid, Losi, Jacqueline M., Sabzevari, Helen, Yamada, Nobuo, Feigenbaum, Lionel, ...

A transgenic (Tg) mouse expressing human IL-15 was generated to define the role of IL-15 in the normal immune response. Overexpression of IL-15 resulted in an increase of NK, CD44hiCD8 memory T...

Selective Inhibition of Selenocysteine tRNA Maturation and Selenoprotein Synthesis in Transgenic Mice Expressing Isopentenyladenosine-Deficient Selenocysteine tRNA

Moustafa, Mohamed E., Carlson, Bradley A., El-Saadani, Muhammad A., Kryukov, Gregory V., Sun, Qi-An, Harney, John W., ...

Selenocysteine (Sec) tRNA (tRNA[Ser]Sec) serves as both the site of Sec biosynthesis and the adapter molecule for donation of this amino acid to protein. The consequences on selenoprotein...

Life without white fat: a transgenic mouse

Moitra, Jaideep, Mason, Mark M., Olive, Michelle, Krylov, Dmitry, Gavrilova, Oksana, Marcus-Samuels, Bernice, ...

We have generated a transgenic mouse with no white fat tissue throughout life. These mice express a dominant-negative protein, termed A-ZIP/F, under the control of the adipose-specific aP2...

Expression of Telomerase RNA Template, but Not Telomerase Reverse Transcriptase, Is Limiting for Telomere Length Maintenance In Vivo

Chiang, Y. Jeffrey, Hemann, Michael T., Hathcock, Karen S., Tessarollo, Lino, Feigenbaum, Lionel, Hahn, William C., ...

Telomerase consists of two essential components, the telomerase RNA template (TR) and telomerase reverse transcriptase (TERT). The haplo-insufficiency of TR was recently shown to cause one form of...

Poor immunogenicity of a self/tumor antigen derives from peptide–MHC-I instability and is independent of tolerance

Yu, Zhiya, Theoret, Marc R., Touloukian, Christopher E., Surman, Deborah R., Garman, Scott C., Feigenbaum, Lionel, ...

Understanding the mechanisms underlying the poor immunogenicity of human self/tumor antigens is challenging because of experimental limitations in humans. Here, we developed a human-mouse chimeric...

Differential cis-regulation of human versus mouse TERT gene expression in vivo: Identification of a human-specific repressive element

Horikawa, Izumi, Chiang, Y. Jeffrey, Patterson, Tricia, Feigenbaum, Lionel, Leem, Sun-Hee, Michishita, Eriko, ...

In vivo expression of human telomerase is significantly different from that of mouse telomerase. To assess the basis for this difference, a bacterial artificial chromosome clone containing the entire...

Overexpression of Human Cripto-1 in Transgenic Mice Delays Mammary Gland Development and Differentiation and Induces Mammary Tumorigenesis

Sun, Youping, Strizzi, Luigi, Raafat, Ahmed, Hirota, Morihisa, Bianco, Caterina, Feigenbaum, Lionel, ...

Overexpression of Cripto-1 has been reported in several types of human cancers including breast cancer. To investigate the role of human Cripto-1 (CR-1) in mammary gland development and...

Cytokine signal transduction is suppressed in preselection double-positive thymocytes and restored by positive selection

Yu, Qing, Park, Jung-Hyun, Doan, Loretta L., Erman, Batu, Feigenbaum, Lionel, Singer, Alfred

Death by neglect requires that CD4+8+ double-positive (DP) thymocytes avoid cytokine-mediated survival signals, which is presumably why DP thymocytes normally extinguish IL-7R gene expression. We...

Regulation of AID expression in the immune response

Crouch, Elizabeth E., Li, Zhiyu, Takizawa, Makiko, Fichtner-Feigl, Stefan, Gourzi, Polyxeni, Montaño, Carolina, ...

The B cell–specific enzyme activation-induced cytidine deaminase (AID) has been shown to be essential for isotype switching and affinity maturation of antibody genes during the immune response....

Distinct domains in Nbs1 regulate irradiation-induced checkpoints and apoptosis

Difilippantonio, Simone, Celeste, Arkady, Kruhlak, Michael J., Lee, Youngsoo, Difilippantonio, Michael J., Feigenbaum, Lionel, ...

The chromosomal instability syndromes Nijmegen breakage syndrome (NBS) and ataxia telangiectasia (AT) share many overlapping phenotypes, including cancer predisposition, radiation sensitivity,...

Expression of the transcription factor cKrox in peripheral CD8 T cells reveals substantial postthymic plasticity in CD4-CD8 lineage differentiation

Jenkinson, S. Rhiannon, Intlekofer, Andrew M., Sun, Guangping, Feigenbaum, Lionel, Reiner, Steven L., Bosselut, Rémy

Most T cells belong to either of two lineages defined by the mutually exclusive expression of CD4 and CD8 coreceptors: CD4 T cells are major histocompatibility complex (MHC) II restricted and have...

IL-7 Receptor Signals Inhibit Expression of Transcription Factors TCF-1, LEF-1, and RORγt: Impact on Thymocyte Development

Yu, Qing, Erman, Batu, Park, Jung-Hyun, Feigenbaum, Lionel, Singer, Alfred

Intrathymic T cell development depends on signals transduced by both T cell receptor and cytokine receptors. Early CD4−CD8− (double negative) thymocytes require interleukin (IL)-7 receptor...

Restricting Zap70 Expression to CD4+CD8+ Thymocytes Reveals a T Cell Receptor–dependent Proofreading Mechanism Controlling the Completion of Positive Selection

Liu, Xiaolong, Adams, Anthony, Wildt, Kathryn F., Aronow, Bruce, Feigenbaum, Lionel, Bosselut, Rémy

Although T cell receptor (TCR) signals are essential for intrathymic T cell–positive selection, it remains controversial whether they only serve to initiate this process, or whether they are...

Tumor Regression and Autoimmunity after Reversal of a Functionally Tolerant State of Self-reactive CD8+ T Cells

Overwijk, Willem W., Theoret, Marc R., Finkelstein, Steven E., Surman, Deborah R., De Jong, Laurina A., Vyth-Dreese, Florry A., ...

Many tumor-associated antigens are derived from nonmutated “self” proteins. T cells infiltrating tumor deposits recognize self-antigens presented by tumor cells and can be expanded in vivo with...

Burkitt Lymphoma in the Mouse

Kovalchuk, Alexander L., Qi, Chen-Feng, Torrey, Ted A., Taddesse-Heath, Lekidelu, Feigenbaum, Lionel, Park, Sung Sup, ...

Chromosomal translocations juxtaposing the MYC protooncogene with regulatory sequences of immunoglobulin (Ig) H chain or kappa (Igκ) or lambda (Igλ) L chain genes and effecting deregulated...