Chella S. David

Mice expressing HLA-DQ6α8β transgenes develop polychondritis spontaneously (2006)

Lamoureux, Jennifer L, Buckner, Jane, David, Chella S, Bradley, David S

Abstract Relapsing polychondritis (RP) is a human autoimmune disease of unknown etiology in which cartilaginous sites are destroyed by cyclic inflammatory episodes beginning, most commonly, during...

Association of MHC and rheumatoid arthritis: Regulatory role of HLA class II molecules in animal models of RA - studies on transgenic/knockout mice (2000)

Taneja, Veena, David, Chella S

Abstract Human leucocyte antigen (HLA) class II molecules have been shown to be associated with predisposition to rheumatoid arthritis (RA). We generated HLA-DR and DQ transgenic mice that lacked...

Mutational Effects on Protein Folding Stability and Antigenicity: The Case of Streptococcal Pyrogenic Exotoxin A (1998)

Carra, John H., Welcher, Brent C., Schokman, Rowene D., David, Chella S., Bavari, Sina

The influence of mutationally induced changes in protein folding on development of effective neutralizing antibodies during vaccination remains largely unexplored. In this study, we probed how...

Human Leukocyte Antigen-DQ8 Transgenic Mice: A Model to Examine the Toxicity of Aerosolized Staphylococcal Enterotoxin B (1998)

Roy, Chad J., Warfield, Kelly L., Welcher, Brent C., Gonzales, Raoul F., Larsen, Tom, Hanson, Julie, ...

Staphylococcal enterotoxins (SEs) belong to a large group of bacterial exotoxins that cause severe immunopathologies, especially when delivered as an aerosol. SEs elicit the release of lethal amounts...

Identification of specificity H-2.7 as an erythrocyte antigen: Control by an independent locus, H-2G , between the S and D regions (1975)

David, Chella S., Shreffler, Donald C., Stimpfling, Jack H.

Specificity H-2.7 is expressed predominantly on erythrocytes and controlled by a gene that maps within the H-2 gene complex at a locus, designated as H-2G , which apparently lies between regions S...

Immune response to calf collagen type I in mice: A combined control of Ir-1A and non H-2 linked genes (1975)

Götze, Dietrich, Timpl, Rupert, Nowack, Hans, Hahn, Eckhart, David, Chella S.

The genetically controlled immune response to calf skin collagen type I in mice could be demonstrated to be governed by at least two genes. One is linked to the H-2 complex and located within the IA...

The specificity and significance of the inhibition of Fc receptor binding by anti H-2 sera (1975)

David, Chella S., Schirrmacher, Volker, Halloran, Phil

The possibility that Ia antigens are unique among H-2 antigens in their relationship to the Fc receptor was investigated in an EA rosette assay. Antibody specific for antigens in various regions of...

Identification of HLA class II-restricted determinants of Mycobacterium tuberculosis-derived proteins by using HLA-transgenic, class II-deficient mice

Geluk, Annemieke, Taneja, Veena, Van Meijgaarden, Krista E., Zanelli, Eric, Abou-Zeid, Christiane, Thole, Jelle E. R., ...

T helper 1 cells play a major role in protective immunity against mycobacterial pathogens. Since the antigen (Ag) specificity of CD4+ human T cells is strongly controlled by HLA class II...

Assessing the Binding of Four Plasmodium falciparum T Helper Cell Epitopes to HLA-DQ and Induction of T-Cell Responses in HLA-DQ Transgenic Mice

Pimtanothai, Nattiya, Parra, Marcela, Johnson, Armead H., David, Chella S., Katovich Hurley, Carolyn

A subunit vaccine for Plasmodium falciparum malaria will need to contain well-defined T helper cell epitopes that induce protective immune responses to the parasite. One major barrier to the use of...

Differential Effects of Infection with a Babesia-Like Piroplasm, WA1, in Inbred Mice

Moro, Manuel H., David, Chella S., Magera, Jenifer M., Wettstein, Peter J., Barthold, Stephen W., Persing, David H.

A newly identified intraerythrocytic Babesia-like organism, WA1, and its relatives were recently shown to be infectious for humans in the western United States. The purpose of the present study was...

Association of MHC and rheumatoid arthritis: Regulatory role of HLA class II molecules in animal models of RA - studies on transgenic/knockout mice

Taneja, Veena, David, Chella S

Human leucocyte antigen (HLA) class II molecules have been shown to be associated with predisposition to rheumatoid arthritis (RA). We generated HLA-DR and DQ transgenic mice that lacked endogenous...

Transgenic Expression of Theiler's Murine Encephalomyelitis Virus Genes in H-2b Mice Inhibits Resistance to Virus-Induced Demyelination

Lin, Xiaoqi, Njenga, M. Kariuki, Johnson, Aaron J., Pavelko, Kevin D., David, Chella S., Pease, Larry R., ...

We investigated the role of the immune system in protecting against virus-induced demyelination by generating lines of transgenic B10 (H-2b) congenic mice expressing three independent contiguous...

A humanized model of experimental autoimmune uveitis in HLA class II transgenic mice

Pennesi, Giuseppina, Mattapallil, Mary J., Sun, Shu-Hui, Avichezer, Dody, Silver, Phyllis B., Karabekian, Zaruhi, ...

Experimental autoimmune uveitis (EAU) is a disease of the neural retina induced by immunization with retinal antigens, such as interphotoreceptor retinoid-binding protein (IRBP) and arrestin (retinal...

Auricular chondritis in NOD.DQ8.Aβo (Ag7–/–) transgenic mice resembles human relapsing polychondritis

Taneja, Veena, Griffiths, Marie, Behrens, Marshall, Luthra, Harvinder S., David, Chella S.

Relapsing polychondritis is a multisystem autoimmune disease involving cartilage destruction but no known causative antigen. HLA-DQ8 has been associated with various autoimmune diseases in humans. To...

HLA-DR2–restricted responses to proteolipid protein 95-116 peptide cause autoimmune encephalitis in transgenic mice

Kawamura, Kazuyuki, Yamamura, Takashi, Yokoyama, Kazumasa, Chui, De-Hua, Fukui, Yoshinori, Sasazuki, Takehiko, ...

In multiple sclerosis (MS) patients who carry the Class II major histocompatibility (MHC) type HLA-DR2, T cells specific for amino acids 95-116 in the proteolipid protein (PLP) are activated and...

Short ragweed allergen induces eosinophilic lung disease in HLA-DQ transgenic mice

Chapoval, Svetlana P., Nabozny, Gerald H., Marietta, Eric V., Raymond, Ernie L., Krco, Christopher J., Andrews, Amy G., ...

The human leukocyte antigen (HLA) restriction of the IgE response to different allergens in humans has been a subject of numerous published studies. However, the role and contribution of specific HLA...

The Presence of I-Region-Associated Antigens on B Cells in Molecules Distinct from Immunoglobulin and H-2K and H-2D

Unanue, Emil R., Dorf, Martin E., David, Chella S., Benacerraf, Baruj

The distribution of I-region-associated antigenic specificities in murine lymphoid cells was studied by immunofluorescence. The antigens were mostly represented in B cells and in macrophages. The...

In Vitro and In Vivo Evaluation of Staphylococcal Superantigen Peptide Antagonists

Rajagopalan, Govindarajan, Sen, Moon M., David, Chella S.

Superantigen peptide antagonists failed to block T-cell activation and cytokine production as well as toxic shock induced by staphylococcal enterotoxin B (SEB) in HLA class II transgenic mice. They...

Human Leukocyte Antigen-DQ8 Transgenic Mice: a Model To Examine the Toxicity of Aerosolized Staphylococcal Enterotoxin B

Roy, Chad J., Warfield, Kelly L., Welcher, Brent C., Gonzales, Raoul F., Larsen, Tom, Hanson, Julie, ...

Staphylococcal enterotoxins (SEs) belong to a large group of bacterial exotoxins that cause severe immunopathologies, especially when delivered as an aerosol. SEs elicit the release of lethal amounts...

Endogenous Superantigens Shape Response to Exogenous Superantigens

Rajagopalan, Govindarajan, Singh, Manisha, Sen, Moon M., Murali, Narayana S., Nath, Karl A., David, Chella S.

Endogenous superantigen-mediated thymic negative selection resulted in a paucity of mature T cells bearing T-cell receptor (TCR) Vβ8 in the periphery. Consequently, the magnitude of immune response...

Identification of antigenic epitopes on human allergens: studies with HLA transgenic mice.

Chapoval, Svetlana P, David, Chella S

Environmental factors play an important role in the rise and manifestation of allergic conditions in genetically predisposed subjects. Increased exposure to indoor/outdoor allergens is a significant...

Intranasal Exposure to Bacterial Superantigens Induces Airway Inflammation in HLA Class II Transgenic Mice

Rajagopalan, Govindarajan, Iijima, Koji, Singh, Manisha, Kita, Hirohito, Patel, Robin, David, Chella S.

Staphylococcus aureus is widely prevalent in the nasopharynges of healthy individuals (carriers) but can also cause serious infections. S. aureus can elaborate a variety of superantigen exotoxins in...

Identification of HLA class II-restricted determinants of Mycobacterium tuberculosis-derived proteins by using HLA-transgenic, class II-deficient mice

Geluk, Annemieke, Taneja, Veena, Van Meijgaarden, Krista E., Zanelli, Eric, Abou-Zeid, Christiane, Thole, Jelle E. R., ...

T helper 1 cells play a major role in protective immunity against mycobacterial pathogens. Since the antigen (Ag) specificity of CD4+ human T cells is strongly controlled by HLA class II...

Assessing the Binding of Four Plasmodium falciparum T Helper Cell Epitopes to HLA-DQ and Induction of T-Cell Responses in HLA-DQ Transgenic Mice

Pimtanothai, Nattiya, Parra, Marcela, Johnson, Armead H., David, Chella S., Katovich Hurley, Carolyn

A subunit vaccine for Plasmodium falciparum malaria will need to contain well-defined T helper cell epitopes that induce protective immune responses to the parasite. One major barrier to the use of...

Differential Effects of Infection with a Babesia-Like Piroplasm, WA1, in Inbred Mice

Moro, Manuel H., David, Chella S., Magera, Jenifer M., Wettstein, Peter J., Barthold, Stephen W., Persing, David H.

A newly identified intraerythrocytic Babesia-like organism, WA1, and its relatives were recently shown to be infectious for humans in the western United States. The purpose of the present study was...

Association of MHC and rheumatoid arthritis: Regulatory role of HLA class II molecules in animal models of RA - studies on transgenic/knockout mice

Taneja, Veena, David, Chella S

Human leucocyte antigen (HLA) class II molecules have been shown to be associated with predisposition to rheumatoid arthritis (RA). We generated HLA-DR and DQ transgenic mice that lacked endogenous...

Transgenic Expression of Theiler's Murine Encephalomyelitis Virus Genes in H-2b Mice Inhibits Resistance to Virus-Induced Demyelination

Lin, Xiaoqi, Njenga, M. Kariuki, Johnson, Aaron J., Pavelko, Kevin D., David, Chella S., Pease, Larry R., ...

We investigated the role of the immune system in protecting against virus-induced demyelination by generating lines of transgenic B10 (H-2b) congenic mice expressing three independent contiguous...

A humanized model of experimental autoimmune uveitis in HLA class II transgenic mice

Pennesi, Giuseppina, Mattapallil, Mary J., Sun, Shu-Hui, Avichezer, Dody, Silver, Phyllis B., Karabekian, Zaruhi, ...

Experimental autoimmune uveitis (EAU) is a disease of the neural retina induced by immunization with retinal antigens, such as interphotoreceptor retinoid-binding protein (IRBP) and arrestin (retinal...

Auricular chondritis in NOD.DQ8.Aβo (Ag7–/–) transgenic mice resembles human relapsing polychondritis

Taneja, Veena, Griffiths, Marie, Behrens, Marshall, Luthra, Harvinder S., David, Chella S.

Relapsing polychondritis is a multisystem autoimmune disease involving cartilage destruction but no known causative antigen. HLA-DQ8 has been associated with various autoimmune diseases in humans. To...

HLA-DR2–restricted responses to proteolipid protein 95-116 peptide cause autoimmune encephalitis in transgenic mice

Kawamura, Kazuyuki, Yamamura, Takashi, Yokoyama, Kazumasa, Chui, De-Hua, Fukui, Yoshinori, Sasazuki, Takehiko, ...

In multiple sclerosis (MS) patients who carry the Class II major histocompatibility (MHC) type HLA-DR2, T cells specific for amino acids 95-116 in the proteolipid protein (PLP) are activated and...

Short ragweed allergen induces eosinophilic lung disease in HLA-DQ transgenic mice

Chapoval, Svetlana P., Nabozny, Gerald H., Marietta, Eric V., Raymond, Ernie L., Krco, Christopher J., Andrews, Amy G., ...

The human leukocyte antigen (HLA) restriction of the IgE response to different allergens in humans has been a subject of numerous published studies. However, the role and contribution of specific HLA...

The Presence of I-Region-Associated Antigens on B Cells in Molecules Distinct from Immunoglobulin and H-2K and H-2D

Unanue, Emil R., Dorf, Martin E., David, Chella S., Benacerraf, Baruj

The distribution of I-region-associated antigenic specificities in murine lymphoid cells was studied by immunofluorescence. The antigens were mostly represented in B cells and in macrophages. The...

In Vitro and In Vivo Evaluation of Staphylococcal Superantigen Peptide Antagonists

Rajagopalan, Govindarajan, Sen, Moon M., David, Chella S.

Superantigen peptide antagonists failed to block T-cell activation and cytokine production as well as toxic shock induced by staphylococcal enterotoxin B (SEB) in HLA class II transgenic mice. They...

Human Leukocyte Antigen-DQ8 Transgenic Mice: a Model To Examine the Toxicity of Aerosolized Staphylococcal Enterotoxin B

Roy, Chad J., Warfield, Kelly L., Welcher, Brent C., Gonzales, Raoul F., Larsen, Tom, Hanson, Julie, ...

Staphylococcal enterotoxins (SEs) belong to a large group of bacterial exotoxins that cause severe immunopathologies, especially when delivered as an aerosol. SEs elicit the release of lethal amounts...

Endogenous Superantigens Shape Response to Exogenous Superantigens

Rajagopalan, Govindarajan, Singh, Manisha, Sen, Moon M., Murali, Narayana S., Nath, Karl A., David, Chella S.

Endogenous superantigen-mediated thymic negative selection resulted in a paucity of mature T cells bearing T-cell receptor (TCR) Vβ8 in the periphery. Consequently, the magnitude of immune response...

Identification of antigenic epitopes on human allergens: studies with HLA transgenic mice.

Chapoval, Svetlana P, David, Chella S

Environmental factors play an important role in the rise and manifestation of allergic conditions in genetically predisposed subjects. Increased exposure to indoor/outdoor allergens is a significant...

Intranasal Exposure to Bacterial Superantigens Induces Airway Inflammation in HLA Class II Transgenic Mice

Rajagopalan, Govindarajan, Iijima, Koji, Singh, Manisha, Kita, Hirohito, Patel, Robin, David, Chella S.

Staphylococcus aureus is widely prevalent in the nasopharynges of healthy individuals (carriers) but can also cause serious infections. S. aureus can elaborate a variety of superantigen exotoxins in...

Mice expressing HLA-DQ6α8β transgenes develop polychondritis spontaneously

Lamoureux, Jennifer L, Buckner, Jane Hoyt, David, Chella S, Bradley, David S

Relapsing polychondritis (RP) is a human autoimmune disease of unknown etiology in which cartilaginous sites are destroyed by cyclic inflammatory episodes beginning, most commonly, during the fourth...

Acute Systemic Immune Activation following Conjunctival Exposure to Staphylococcal Enterotoxin B

Rajagopalan, Govindarajan, Smart, Michele K., Patel, Robin, David, Chella S.

Conjunctival exposure to the Staphylococcus aureus superantigen staphylococcal enterotoxin B (SEB) may occur accidentally, as a result of bioterrorism, or during colonization or infection of the...

Genetic Deletion of a Single Immunodominant T-cell Response Confers Susceptibility to Virus-induced Demyelination

Pavelko, Kevin D, Pease, Larry R, David, Chella S, Rodriguez, Moses

An important question in neuropathology involves determining the antigens that are targeted during demyelinating disease. Viral infection of the central nervous system (CNS) leads to T-cell responses...

Chronic exposure in vivo to thyrotropin receptor stimulating monoclonal antibodies sustains high thyroxine levels and thyroid hyperplasia in thyroid autoimmunity-prone HLA-DRB1*0301 transgenic mice

Flynn, Jeffrey C, Gilbert, Jacqueline A, Meroueh, Chady, Snower, Daniel P, David, Chella S, Kong, Yi-chi M, ...

We have examined the induction of autoimmunity and the maintenance of sustained hyperthyroidism in autoimmunity-prone human leucocyte antigen (HLA) DR3 transgenic non-obese diabetic (NOD) mice...