Stephen J. Rogerson

Characterization of VAR2CSA-deficient Plasmodium falciparum-infected erythrocytes selected for adhesion to the BeWo placental cell line (2008)

Yosaatmadja, Francisca, Andrews, Katherine T, Duffy, Michael F, Brown, Graham V, Beeson, James G, Rogerson, Stephen J

Abstract Background Malaria in pregnancy is characterized by accumulation of infected erythrocytes (IE) in the placenta. The key ligand identified as mediating this process is a Plasmodium falciparum...

Maternal–Fetal Microtransfusions and HIV-1 Mother-to-Child Transmission in Malawi (2006)

Jesse J. Kwiek, Victor Mwapasa, Danny A. Milner, Alisa P. Alker, William C. Miller, Eyob Tadesse, ...

Placental microtransfusions as measured by placental alkaline phosphatase levels in cord blood are a risk factor for mother-to-child transmission during vaginal deliveries.

Maternal–Fetal Microtransfusions and HIV-1 Mother-to-Child Transmission in Malawi (2006)

Jesse J. Kwiek, Victor Mwapasa, Danny A. Milner Jr., Alisa P. Alker, William C. Miller, Eyob Tadesse, ...

Background Between 25% and 35% of infants born to HIV-infected mothers become HIV-1 infected. One potential route of mother-to-child transmission (MTCT) could be through a breakdown in the placental...

Malaria during pregnancy and foetal haematological status in Blantyre, Malawi (2005)

Abrams, Elizabeth T., Kwiek, Jesse J., Mwapasa, Victor, Kamwendo, Deborah D., Tadesse, Eyob, Lema, Valentino M., ...

Background Although maternal anaemia often stems from malaria infection during pregnancy, its effects on foetal haemoglobin levels are not straightforward. Lower-than-expected cord haemoglobin values...

Malaria during pregnancy and foetal haematological status in Blantyre, Malawi (2005)

Abrams, Elizabeth T, Kwiek, Jesse J, Mwapasa, Victor, Kamwendo, Deborah D, Tadesse, Eyob, Lema, Valentino M, ...

Abstract Background Although maternal anaemia often stems from malaria infection during pregnancy, its effects on foetal haemoglobin levels are not straightforward. Lower-than-expected cord...

Cytoadherence and rosetting in Plasmodium falciparum (1995)

Rogerson, Stephen J.

Typescript (photocopy) Includes bibliographical references (leaves 112-131)

The adhesion of Plasmodium falciparum-infected erythrocytes to chondroitin sulfate A is mediated by P. falciparum erythrocyte membrane protein 1

Reeder, John C., Cowman, Alan F., Davern, Kathleen M., Beeson, James G., Thompson, Jennifer K., Rogerson, Stephen J., ...

Chondroitin sulfate A (CSA) is an important receptor for the sequestration of Plasmodium falciparum in the placenta, but the parasite ligand involved in adhesion has not previously been identified....

Immune mimicry in malaria: Plasmodium falciparum secretes a functional histamine-releasing factor homolog in vitro and in vivo

MacDonald, Susan M., Bhisutthibhan, Jamaree, Shapiro, Theresa A., Rogerson, Stephen J., Taylor, Terrie E., Tembo, Madalitso, ...

The Plasmodium falciparum translationally controlled tumor protein (TCTP) is a homolog of the mammalian histamine-releasing factor (HRF), which causes histamine release from human basophils and IL-8...

Plasmodium falciparum Rosette Formation Is Uncommon in Isolates from Pregnant Women

Rogerson, Stephen J., Beeson, James G., Mhango, Chisale G., Dzinjalamala, Fraction K., Molyneux, Malcolm E.

We examined the formation of Plasmodium falciparum erythrocyte rosettes using parasite isolates from placental or peripheral blood of pregnant Malawian women and from peripheral blood of children....

Inhibition of Binding of Malaria-Infected Erythrocytes by a Tetradecasaccharide Fraction from Chondroitin Sulfate A

Beeson, James G., Chai, Wengang, Rogerson, Stephen J., Lawson, Alexander M., Brown, Graham V.

Adherence of parasite-infected erythrocytes (IEs) to the microvascular endothelium of various organs, a process known as sequestration, is a feature of Plasmodium falciparum malaria. This event is...

Evaluation of the OptiMAL Rapid Antigen Test and Species-Specific PCR To Detect Placental Plasmodium falciparum Infection at Delivery

Mankhambo, Limangeni, Kanjala, Maxwell, Rudman, Sarah, Lema, Valentino M., Rogerson, Stephen J.

During pregnancy, Plasmodium falciparum infection of the placenta frequently occurs in the absence of parasites in peripheral blood. We investigated the abilities of the OptiMAL rapid...

Selective Accumulation of Mature Asexual Stages of Plasmodium falciparum-Infected Erythrocytes in the Placenta

Beeson, James G., Amin, Nishal, Kanjala, Maxwell, Rogerson, Stephen J.

A feature of malaria in pregnancy is accumulation of P. falciparum-infected erythrocytes (IEs) in the placenta, which is associated with adverse outcomes for mothers and infants. Infection appears to...

Placental Tumor Necrosis Factor Alpha but Not Gamma Interferon Is Associated with Placental Malaria and Low Birth Weight in Malawian Women

Rogerson, Stephen J., Brown, Heidi C., Pollina, Elena, Abrams, Elizabeth T., Tadesse, Eyob, Lema, Valentino M., ...

Malaria in pregnancy predisposes to maternal anemia and low birth weight (LBW). We examined the possible roles of the cytokines tumor necrosis factor alpha (TNF-α) and gamma interferon (IFN-γ) in...

Diagnosis of Plasmodium falciparum Malaria at Delivery: Comparison of Blood Film Preparation Methods and of Blood Films with Histology

Rogerson, Stephen J., Mkundika, Patrick, Kanjala, Maxwell K.

We compared peripheral and placental blood films (made by different techniques) with placental histology for diagnosis of Plasmodium falciparum malaria in pregnancy. Samples from 464 women were...

Cross-Reactive Surface Epitopes on Chondroitin Sulfate A-Adherent Plasmodium falciparum-Infected Erythrocytes Are Associated with Transcription of var2csa

Elliott, Salenna R., Duffy, Michael F., Byrne, Timothy J., Beeson, James G., Mann, Emily J., Wilson, Danny W., ...

Malaria in pregnancy is associated with placental accumulation of Plasmodium falciparum-infected erythrocytes (IE) that adhere to chondroitin sulfate A (CSA). Adhesion is mediated by P. falciparum...

Mutations Associated with Sulfadoxine-Pyrimethamine and Chlorproguanil Resistance in Plasmodium falciparum Isolates from Blantyre, Malawi

Alker, Alisa P., Mwapasa, Victor, Purfield, Anne, Rogerson, Stephen J., Molyneux, Malcolm E., Kamwendo, Deborah D., ...

We conducted a prevalence study of mutations in Plasmodium falciparum that are associated with antifolate resistance in Blantyre, Malawi. The dihydrofolate reductase 164-Leu mutation, which confers...

Placental Malaria Induces Variant-Specific Antibodies of the Cytophilic Subtypes Immunoglobulin G1 (IgG1) and IgG3 That Correlate with Adhesion Inhibitory Activity

Elliott, Salenna R., Brennan, Amy K., Beeson, James G., Tadesse, Eyob, Molyneux, Malcolm E., Brown, Graham V., ...

Antibodies targeting variant antigens on the surfaces of chondroitin sulfate A (CSA)-binding malaria-infected erythrocytes have been linked to protection against the complications of malaria in...

Maternal–Fetal Microtransfusions and HIV-1 Mother-to-Child Transmission in Malawi

Kwiek, Jesse J, Mwapasa, Victor, Milner, Danny A, Alker, Alisa P, Miller, William C, Tadesse, Eyob, ...

Placental microtransfusions as measured by placental alkaline phosphatase levels in cord blood are a risk factor for mother-to-child transmission during vaginal deliveries.

Delivery of the Malaria Virulence Protein PfEMP1 to the Erythrocyte Surface Requires Cholesterol-Rich Domains

Frankland, Sarah, Adisa, Akinola, Horrocks, Paul, Taraschi, Theodore F., Schneider, Timothy, Elliott, Salenna R., ...

The particular virulence of the human malaria parasite Plasmodium falciparum derives from export of parasite-encoded proteins to the surface of the mature erythrocytes in which it resides. The...

Transcribed var Genes Associated with Placental Malaria in Malawian Women†

Duffy, Michael F., Caragounis, Aphrodite, Noviyanti, Rintis, Kyriacou, Helen M., Choong, Ee Ken, Boysen, Katja, ...

Determining the diversity of PfEMP1 sequences expressed by Plasmodium falciparum-infected erythrocytes isolated from placentas is important for attempts to develop a pregnancy-specific malaria...

The adhesion of Plasmodium falciparum-infected erythrocytes to chondroitin sulfate A is mediated by P. falciparum erythrocyte membrane protein 1

Reeder, John C., Cowman, Alan F., Davern, Kathleen M., Beeson, James G., Thompson, Jennifer K., Rogerson, Stephen J., ...

Chondroitin sulfate A (CSA) is an important receptor for the sequestration of Plasmodium falciparum in the placenta, but the parasite ligand involved in adhesion has not previously been identified....

Immune mimicry in malaria: Plasmodium falciparum secretes a functional histamine-releasing factor homolog in vitro and in vivo

MacDonald, Susan M., Bhisutthibhan, Jamaree, Shapiro, Theresa A., Rogerson, Stephen J., Taylor, Terrie E., Tembo, Madalitso, ...

The Plasmodium falciparum translationally controlled tumor protein (TCTP) is a homolog of the mammalian histamine-releasing factor (HRF), which causes histamine release from human basophils and IL-8...

Plasmodium falciparum Rosette Formation Is Uncommon in Isolates from Pregnant Women

Rogerson, Stephen J., Beeson, James G., Mhango, Chisale G., Dzinjalamala, Fraction K., Molyneux, Malcolm E.

We examined the formation of Plasmodium falciparum erythrocyte rosettes using parasite isolates from placental or peripheral blood of pregnant Malawian women and from peripheral blood of children....

Inhibition of Binding of Malaria-Infected Erythrocytes by a Tetradecasaccharide Fraction from Chondroitin Sulfate A

Beeson, James G., Chai, Wengang, Rogerson, Stephen J., Lawson, Alexander M., Brown, Graham V.

Adherence of parasite-infected erythrocytes (IEs) to the microvascular endothelium of various organs, a process known as sequestration, is a feature of Plasmodium falciparum malaria. This event is...

Evaluation of the OptiMAL Rapid Antigen Test and Species-Specific PCR To Detect Placental Plasmodium falciparum Infection at Delivery

Mankhambo, Limangeni, Kanjala, Maxwell, Rudman, Sarah, Lema, Valentino M., Rogerson, Stephen J.

During pregnancy, Plasmodium falciparum infection of the placenta frequently occurs in the absence of parasites in peripheral blood. We investigated the abilities of the OptiMAL rapid...

Selective Accumulation of Mature Asexual Stages of Plasmodium falciparum-Infected Erythrocytes in the Placenta

Beeson, James G., Amin, Nishal, Kanjala, Maxwell, Rogerson, Stephen J.

A feature of malaria in pregnancy is accumulation of P. falciparum-infected erythrocytes (IEs) in the placenta, which is associated with adverse outcomes for mothers and infants. Infection appears to...

Placental Tumor Necrosis Factor Alpha but Not Gamma Interferon Is Associated with Placental Malaria and Low Birth Weight in Malawian Women

Rogerson, Stephen J., Brown, Heidi C., Pollina, Elena, Abrams, Elizabeth T., Tadesse, Eyob, Lema, Valentino M., ...

Malaria in pregnancy predisposes to maternal anemia and low birth weight (LBW). We examined the possible roles of the cytokines tumor necrosis factor alpha (TNF-α) and gamma interferon (IFN-γ) in...

Diagnosis of Plasmodium falciparum Malaria at Delivery: Comparison of Blood Film Preparation Methods and of Blood Films with Histology

Rogerson, Stephen J., Mkundika, Patrick, Kanjala, Maxwell K.

We compared peripheral and placental blood films (made by different techniques) with placental histology for diagnosis of Plasmodium falciparum malaria in pregnancy. Samples from 464 women were...

Cross-Reactive Surface Epitopes on Chondroitin Sulfate A-Adherent Plasmodium falciparum-Infected Erythrocytes Are Associated with Transcription of var2csa

Elliott, Salenna R., Duffy, Michael F., Byrne, Timothy J., Beeson, James G., Mann, Emily J., Wilson, Danny W., ...

Malaria in pregnancy is associated with placental accumulation of Plasmodium falciparum-infected erythrocytes (IE) that adhere to chondroitin sulfate A (CSA). Adhesion is mediated by P. falciparum...

Mutations Associated with Sulfadoxine-Pyrimethamine and Chlorproguanil Resistance in Plasmodium falciparum Isolates from Blantyre, Malawi

Alker, Alisa P., Mwapasa, Victor, Purfield, Anne, Rogerson, Stephen J., Molyneux, Malcolm E., Kamwendo, Deborah D., ...

We conducted a prevalence study of mutations in Plasmodium falciparum that are associated with antifolate resistance in Blantyre, Malawi. The dihydrofolate reductase 164-Leu mutation, which confers...

Placental Malaria Induces Variant-Specific Antibodies of the Cytophilic Subtypes Immunoglobulin G1 (IgG1) and IgG3 That Correlate with Adhesion Inhibitory Activity

Elliott, Salenna R., Brennan, Amy K., Beeson, James G., Tadesse, Eyob, Molyneux, Malcolm E., Brown, Graham V., ...

Antibodies targeting variant antigens on the surfaces of chondroitin sulfate A (CSA)-binding malaria-infected erythrocytes have been linked to protection against the complications of malaria in...

Maternal–Fetal Microtransfusions and HIV-1 Mother-to-Child Transmission in Malawi

Kwiek, Jesse J, Mwapasa, Victor, Milner, Danny A, Alker, Alisa P, Miller, William C, Tadesse, Eyob, ...

Placental microtransfusions as measured by placental alkaline phosphatase levels in cord blood are a risk factor for mother-to-child transmission during vaginal deliveries.

Delivery of the Malaria Virulence Protein PfEMP1 to the Erythrocyte Surface Requires Cholesterol-Rich Domains

Frankland, Sarah, Adisa, Akinola, Horrocks, Paul, Taraschi, Theodore F., Schneider, Timothy, Elliott, Salenna R., ...

The particular virulence of the human malaria parasite Plasmodium falciparum derives from export of parasite-encoded proteins to the surface of the mature erythrocytes in which it resides. The...

Transcribed var Genes Associated with Placental Malaria in Malawian Women†

Duffy, Michael F., Caragounis, Aphrodite, Noviyanti, Rintis, Kyriacou, Helen M., Choong, Ee Ken, Boysen, Katja, ...

Determining the diversity of PfEMP1 sequences expressed by Plasmodium falciparum-infected erythrocytes isolated from placentas is important for attempts to develop a pregnancy-specific malaria...

Expression of Merozoite Surface Protein Markers by Plasmodium falciparum-Infected Erythrocytes in Peripheral Blood and Tissues of Children with Fatal Malaria▿

Dobaño, Carlota, Rogerson, Stephen J., Taylor, Terrie E., McBride, Jana S., Molyneux, Malcolm E.

Sequestration of Plasmodium falciparum-infected erythrocytes is a pathological feature of fatal cerebral malaria. P. falciparum is genetically diverse among, and often within, patients. Preferential...

Disruption of Var2csa Gene Impairs Placental Malaria Associated Adhesion Phenotype

Viebig, Nicola K., Levin, Emily, Dechavanne, Sébastien, Rogerson, Stephen J., Gysin, Jürg, Smith, Joseph D., ...

Infection with Plasmodium falciparum during pregnancy is one of the major causes of malaria related morbidity and mortality in newborn and mothers. The complications of pregnancy-associated malaria...

Inhibition of Dendritic Cell Maturation by Malaria Is Dose Dependent and Does Not Require Plasmodium falciparum Erythrocyte Membrane Protein 1▿

Elliott, Salenna R., Spurck, Timothy P., Dodin, Joelle M., Maier, Alexander G., Voss, Till S., Yosaatmadja, Francisca, ...

Red blood cells infected with Plasmodium falciparum (iRBCs) have been shown to modulate maturation of human monocyte-derived dendritic cells (DCs), interfering with their ability to activate T cells....

Serum Lipoproteins Promote Efficient Presentation of the Malaria Virulence Protein PfEMP1 at the Erythrocyte Surface▿

Frankland, Sarah, Elliott, Salenna R., Yosaatmadja, Francisca, Beeson, James G., Rogerson, Stephen J., Adisa, Akinola, ...

The virulence of the malaria parasite Plasmodium falciparum is related to its ability to express a family of adhesive proteins known as P. falciparum erythrocyte membrane protein 1 (PfEMP1) at the...

Differential var gene expression in the organs of patients dying of falciparum malaria

Montgomery, Jacqui, Mphande, Fingani A, Berriman, Matthew, Pain, Arnab, Rogerson, Stephen J, Taylor, Terrie E, ...

Sequestration of parasitized erythrocytes in the microcirculation of tissues is thought to be important in the pathogenesis of severe falciparum malaria. A major variant surface antigen,...

Impact of Human Immunodeficiency Virus Infection in Pregnant Women on Variant-Specific Immunity to Malaria▿

Dembo, Edson G., Mwapasa, Victor, Montgomery, Jacqui, Craig, Alister G., Porter, Kimberly A., Meshnick, Steven R., ...

Human immunodeficiency virus (HIV) increases susceptibility to Plasmodium falciparum infection, and this has most clearly been demonstrated in pregnant women. Variant surface antigens on the surfaces...

Severe Vivax Malaria: Newly Recognised or Rediscovered?

Rogerson, Stephen J, Carter, Richard

Stephen Rogerson and Richard Carter discuss two new studies that challenge current dogma by suggesting that vivax malaria can cause severe disease.