Skip to main content

Research Repository

Advanced Search

Professor AMIR GHAEMMAGHAMI's Outputs (130)

Label-free separation and sorting of human monocytes and T-cells by electrowetting and dielectrophoresis (2013)
Presentation / Conference Contribution
Huang, C. Y., Chiang, M. Y., Fan, S. K., Ghaemmaghami, A. M., & Hsu, W. (2013, April). Label-free separation and sorting of human monocytes and T-cells by electrowetting and dielectrophoresis. Presented at 8th IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS 2013), Suzhou, China

We report a label-free separation and sorting approach based on electrowetting-on-dielectric (EWOD) and dielectrophoresis (DEP) to manipulate human monocyte (THP-1) and T-cell (Jurkat) lines in droplets without any impact on cell viability. In additi... Read More about Label-free separation and sorting of human monocytes and T-cells by electrowetting and dielectrophoresis.

The role of lectins in allergic sensitization and allergic disease (2013)
Journal Article
Salazar, F., Sewell, H. F., Shakib, F., & Ghaemmaghami, A. M. (2013). The role of lectins in allergic sensitization and allergic disease. Journal of Allergy and Clinical Immunology, 132(1), 27-36. https://doi.org/10.1016/j.jaci.2013.02.001

Allergic diseases are a global public health issue affecting millions of persons around the world. However, full understanding of the molecular basis of this group of chronic inflammatory disorders remains rather elusive. Recently, the role of carboh... Read More about The role of lectins in allergic sensitization and allergic disease.

Electrospun PLGA fibre sheets incorporating fluorescent nanosensors: Self-reporting scaffolds for application in tissue engineering (2012)
Journal Article
Harrington, H. C., Rose, F. R., Reinwald, Y., Buttery, L. D., Ghaemmaghami, A. M., & Aylott, J. W. (2013). Electrospun PLGA fibre sheets incorporating fluorescent nanosensors: Self-reporting scaffolds for application in tissue engineering. Analytical Methods, 5(1), 68-71. https://doi.org/10.1039/c2ay25771h

Ratiometric analyte responsive nanosensors have been incorporated into electrospun poly(lactic-co-glycolic) acid (PLGA) fibres to create self-reporting scaffolds. It has been demonstrated that the self-reporting scaffolds could be utilised to monitor... Read More about Electrospun PLGA fibre sheets incorporating fluorescent nanosensors: Self-reporting scaffolds for application in tissue engineering.

Mammalian innate resistance to highly pathogenic avian influenza H5N1 virus infection is mediated through reduced proinflammation and infectious virus release (2012)
Journal Article
Nelli, R. K., Dunham, S. P., Kuchipudi, S. V., White, G. A., Baquero-Perez, B., Pengxiang, C., Ghaemmaghami, A. M., Brookes, S. M., Brown, I. H., & Chang, K.-C. (2012). Mammalian innate resistance to highly pathogenic avian influenza H5N1 virus infection is mediated through reduced proinflammation and infectious virus release. Journal of Virology, 86(17), https://doi.org/10.1128/JVI.00244-12

Respiratory epithelial cells and macrophages are the key innate immune cells that play an important role in the pathogenesis of influenza A virus infection. We found that these two cell types from both human and pig showed comparable susceptibilities... Read More about Mammalian innate resistance to highly pathogenic avian influenza H5N1 virus infection is mediated through reduced proinflammation and infectious virus release.

Tissue transglutaminase (TG-2) modified amniotic membrane: A novel scaffold for biomedical applications (2012)
Journal Article
Chau, D. Y., Brown, S. V., Mather, M. L., Hutter, V., Tint, N. L., Dua, H. S., Rose, F. R., & Ghaemmaghami, A. M. (2012). Tissue transglutaminase (TG-2) modified amniotic membrane: A novel scaffold for biomedical applications. Biomedical Materials, 7(4), Article 045011. https://doi.org/10.1088/1748-6041/7/4/045011

The amniotic membrane (AM) is considered as a natural cell culture substrate and has occasionally been exploited in regenerative medicine especially for ocular surface reconstruction and dermal wound healing applications. However, its use is limited... Read More about Tissue transglutaminase (TG-2) modified amniotic membrane: A novel scaffold for biomedical applications.

Tissue transglutaminase treatment leads to concentration-dependent changes in dendritic cell phenotype - implications for the role of transglutaminase in coeliac disease (2012)
Journal Article
Dalleywater, W. J., Chau, D. Y., & Ghaemmaghami, A. M. (2012). Tissue transglutaminase treatment leads to concentration-dependent changes in dendritic cell phenotype - implications for the role of transglutaminase in coeliac disease. BMC Immunology, 13, Article 20. https://doi.org/10.1186/1471-2172-13-20

Dendritic cells (DCs) are part of the innate immune system with a key role in initiating and modulating T cell mediated immune responses. Coeliac disease is caused by inappropriate activation of such a response leading to small intestinal inflammatio... Read More about Tissue transglutaminase treatment leads to concentration-dependent changes in dendritic cell phenotype - implications for the role of transglutaminase in coeliac disease.

The glycosylation pattern of common allergens: the recognition and uptake of Der p 1 by epithelial and dendritic cells is carbohydrate dependent (2012)
Journal Article
Al-Ghouleh, A., Johal, R., Sharquie, I. K., Emara, M., Harrington, H., Shakib, F., & Ghaemmaghami, A. M. (2012). The glycosylation pattern of common allergens: the recognition and uptake of Der p 1 by epithelial and dendritic cells is carbohydrate dependent. PLoS ONE, 7(3), Article 11. https://doi.org/10.1371/journal.pone.0033929

Allergens are initiators of both innate and adaptive immune responses. They are recognised at the site of entry by epithelial and dendritic cells (DCs), both of which activate innate inflammatory circuits that can collectively induce Th2 immune respo... Read More about The glycosylation pattern of common allergens: the recognition and uptake of Der p 1 by epithelial and dendritic cells is carbohydrate dependent.

Separation of dendritic and T cells using electrowetting and dielectrophoresis (2012)
Presentation / Conference Contribution
Chen, C. A., Chen, C. H., Ghaemmaghami, A. M., & Fan, S. K. (2012, March). Separation of dendritic and T cells using electrowetting and dielectrophoresis. Presented at 2012 7th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2012, Kyoto, Japan

The research of immune cells is fundamental to many biological studies. Dendritic cells have the ability to induce a primary immune response in resting naive T cells. The aim of this work is to separate the activated T cells from dendritic cells on a... Read More about Separation of dendritic and T cells using electrowetting and dielectrophoresis.

Retagging identifies dendritic cell-specific intercellular adhesion molecule-3 (ICAM3)-grabbing non-integrin (DC-SIGN) protein as a novel receptor for a major allergen from house dust mite (2012)
Journal Article
Emara, M., Royer, P.-J., Mahdavi, J., Shakib, F., & Ghaemmaghami, A. M. (2012). Retagging identifies dendritic cell-specific intercellular adhesion molecule-3 (ICAM3)-grabbing non-integrin (DC-SIGN) protein as a novel receptor for a major allergen from house dust mite. Journal of Biological Chemistry, 287(8), https://doi.org/10.1074/jbc.M111.312520

Dendritic cells (DCs) have been shown to play a key role in the initiation and maintenance of immune responses to microbial pathogens as well as to allergens, but the exact mechanisms of their involvement in allergic responses and Th2 cell differenti... Read More about Retagging identifies dendritic cell-specific intercellular adhesion molecule-3 (ICAM3)-grabbing non-integrin (DC-SIGN) protein as a novel receptor for a major allergen from house dust mite.

Biomimetic tissues on a chip for drug discovery (2011)
Journal Article
Ghaemmaghami, A. M., Hancock, M. J., Harrington, H., Kaji, H., & Khademhosseini, A. (2012). Biomimetic tissues on a chip for drug discovery. Drug Discovery Today, 17(3-4), 173-181. https://doi.org/10.1016/j.drudis.2011.10.029

Developing biologically relevant models of human tissues and organs is an important enabling step for disease modeling and drug discovery. Recent advances in tissue engineering, biomaterials and microfluidics have led to the development of microscale... Read More about Biomimetic tissues on a chip for drug discovery.

Uniform cell colonization of porous 3-D scaffolds achieved using radial control of surface chemistry (2011)
Journal Article
Intranuovo, F., Howard, D., White, L. J., Johal, R. K., Ghaemmaghami, A. M., Favia, P., Howdle, S. M., Shakesheff, K. M., & Alexander, M. R. (2011). Uniform cell colonization of porous 3-D scaffolds achieved using radial control of surface chemistry. Acta Biomaterialia, 7(9), 3336-3344. https://doi.org/10.1016/j.actbio.2011.05.020

Uniform cellular distribution is a prerequisite to forming tissue within porous scaffolds, but the seeding process often results in preferential adhesion of cells at the periphery. We develop a vapour phase coating strategy which is readily applicabl... Read More about Uniform cell colonization of porous 3-D scaffolds achieved using radial control of surface chemistry.

Recognition of the major cat allergen Fel d 1 through the cysteine-rich domain of the mannose receptor determines its allergenicity (2011)
Journal Article
Emara, M., Royer, P. J., Abbas, Z., Sewell, H. F., Gebriel Mohamed, G., Singh, S., Peel, S., Fox, J., Shakib, F., Martinez-Pomares, L., & Ghaemmaghami, A. M. (2011). Recognition of the major cat allergen Fel d 1 through the cysteine-rich domain of the mannose receptor determines its allergenicity. Journal of Biological Chemistry, 286(15), 13033-13040. https://doi.org/10.1074/jbc.M111.220657

Dendritic cells are professional antigen-presenting cells that are specialized in antigen uptake and presentation. Allergy to cat has increased substantially in recent years and has been shown to be positively associated with asthma.Wehave recently s... Read More about Recognition of the major cat allergen Fel d 1 through the cysteine-rich domain of the mannose receptor determines its allergenicity.

Glycosylation of surface Ig creates a functional bridge between human follicular lymphoma and microenvironmental lectins (2010)
Journal Article
Coelho, V., Krysov, S., Ghaemmaghami, A. M., Emara, M., Potter, K. N., Johnson, P., Packham, G., Martinez-Pomares, L., & Stevenson, F. K. (2010). Glycosylation of surface Ig creates a functional bridge between human follicular lymphoma and microenvironmental lectins. Proceedings of the National Academy of Sciences, 107(43), 18587-18592. https://doi.org/10.1073/pnas.1009388107

Surface Ig (sIg) of follicular lymphoma (FL) is vital for tumor cell survival. We found previously that the Ig in FL is unusual, because the variable region genes carry sequence motifs for N-glycan addition. These are introduced by somatic mutation a... Read More about Glycosylation of surface Ig creates a functional bridge between human follicular lymphoma and microenvironmental lectins.

Label-free molecular imaging of immunological synapses between dendritic and T cells by Raman micro-spectroscopy (2010)
Presentation / Conference Contribution
Zoladek, A. B., Johal, R. K., Garcia-Nieto, S., Pascut, F., Shakesheff, K. M., Ghaemmaghami, A. M., & Notingher, I. (2010, June). Label-free molecular imaging of immunological synapses between dendritic and T cells by Raman micro-spectroscopy. Presented at SPEC 2010 Shedding Light on Disease: Optical Diagnosis for the New Millennium, Manchester, UK

Confocal Raman micro-spectroscopy (CRMS) was used to measure spectral images of immunological synapse formation between dendritic and T cells without using molecular labels or other invasive procedures. The purpose-built inverted CRMS instrument inte... Read More about Label-free molecular imaging of immunological synapses between dendritic and T cells by Raman micro-spectroscopy.

The mannose receptor mediates the uptake of diverse native allergens by dendritic cells and determines allergen-induced T cell polarization through modulation of IDO Activity (2010)
Journal Article
Royer, P. J., Emara, M., Yang, C., Al-Ghouleh, A., Tighe, P., Jones, N., Sewell, H. F., Shakib, F., Martinez-Pomares, L., & Ghaemmaghami, A. M. (2010). The mannose receptor mediates the uptake of diverse native allergens by dendritic cells and determines allergen-induced T cell polarization through modulation of IDO Activity. Journal of Immunology, 185(3), 1522-1531. https://doi.org/10.4049/jimmunol.1000774

The mannose receptor (MR) is a C-type lectin expressed by dendritic cells (DCs). We have investigated the ability of MR to recognize glycosylated allergens. Using a gene silencing strategy, we have specifically inhibited the expression of MR on human... Read More about The mannose receptor mediates the uptake of diverse native allergens by dendritic cells and determines allergen-induced T cell polarization through modulation of IDO Activity.

Laminin and fibronectin treatment leads to generation of dendritic cells with superior endocytic capacity (2010)
Journal Article
García-Nieto, S., Johal, R. K., Shakesheff, K. M., Emara, M., Pierre-Joseph, R., Chau, D. Y., Shakib, F., & Ghaemmaghami, A. M. (2010). Laminin and fibronectin treatment leads to generation of dendritic cells with superior endocytic capacity. PLoS ONE, 5(4), Article e10123. https://doi.org/10.1371/journal.pone.0010123

Background: Sampling the microenvironment at sites of microbial exposure by dendritic cells (DC) and their subsequent interaction with T cells in the paracortical area of lymph nodes are key events for initiating immune responses. Most of our knowled... Read More about Laminin and fibronectin treatment leads to generation of dendritic cells with superior endocytic capacity.

Differential protein expression by dendritic cells from atopic and non-atopic individuals after stimulation by the major house dust mite allergen der p 1 (2009)
Journal Article
Horlock, C., Shakib, F., Jones, N. S., Sewell, H. F., & Ghaemmaghami, A. M. (2009). Differential protein expression by dendritic cells from atopic and non-atopic individuals after stimulation by the major house dust mite allergen der p 1. International Archives of Allergy and Immunology, 150(3), 237-251. https://doi.org/10.1159/000222676

Background: Dendritic cells (DCs) are sentinels of the immune system and are known to play a key role in allergic responses. However, it is not clear how DCs that have been exposed to an allergen support Th2 type immune responses. It is possible that... Read More about Differential protein expression by dendritic cells from atopic and non-atopic individuals after stimulation by the major house dust mite allergen der p 1.

The molecular basis of allergenicity (2008)
Journal Article
Shakib, F., Ghaemmaghami, A. M., & Sewell, H. F. (2008). The molecular basis of allergenicity. Trends in Immunology, 29(12), 633-642. https://doi.org/10.1016/j.it.2008.08.007

Allergens are mostly innocuous antigens that elicit powerful T helper cell type 2 (Th2) responses leading to hyper-immunoglobulin E (IgE) production and allergy. Research carried out over several years has highlighted the possible role of the inheren... Read More about The molecular basis of allergenicity.

Allergen-driven suppression of thiol production by human dendritic cells and the effect of thiols on T cell function (2008)
Journal Article
Hasan, A. A., Ghaemmaghami, A. M., Fairclough, L., Robins, A., Sewell, H. F., & Shakib, F. (2009). Allergen-driven suppression of thiol production by human dendritic cells and the effect of thiols on T cell function. Immunobiology, 214(1), 2-16. https://doi.org/10.1016/j.imbio.2008.04.006

Dendritic cells are a major source of extracellular thiols needed for T cell activation, a process in which CD40-mediated stimulation plays a pivotal role. The Dermatophagoides pteronyssinus group 1 mite allergen (Der p 1) has previously been shown t... Read More about Allergen-driven suppression of thiol production by human dendritic cells and the effect of thiols on T cell function.