David is interested in supervising doctoral research students in the following areas:
If you are interesting in studying any of these subject areas please contact David on the contact details above, or for any general doctoral research enquiries, please email: email@example.com or call +44 (0)121 414 5005.
For a full list of available Doctoral Research opportunities, please visit our Doctoral Research programme listings.
Host immunity to mycobacteria
The main emphasis of his work over the last 30 years has been on the role of host immunity to infection. Currently this involves investigating host immune deficiencies and strain-specific virulence factors that influence disease outcome to infection with M tuberculosis. Previously this work has ranged from an examination of the type-1 cytokine (IFNg/IL-12) pathway in host immunity, to the role of macrophage apoptosis and autophagy in containing mycobacterial infections. The role of Vitamin D deficiency in human immunity to mycobacteria has also been examined.
Key discoveries include: (i) the existence of individuals with genetic mutations in various components of the type-1 cytokine (IFNg/IL-12) pathway which predisposes them to mycobacterial infection, (ii) the role of apoptosis, autophagy and Vitamin D in the containment of intracellular mycobacterial infection.
Modulation of the immune response by differential activation of CD1d-restricted NK T cells. Another research theme of the lab is in determining whether it is possible to pharmacologically modulate the innate functional activities of CD1d-restricted NKT (iNKT) cells. iNKT cells are an important component of the innate immune system and have the capacity to both augment beneficial host immunity and to prevent harmful autoimmunity. Administration of the synthetic glycolipid, alpha-galactosyl ceramide (aGalCer), is known to selectively activate CD1d-restricted NK T cells, which has made this compound and its analogues attractive candidates for achieving such beneficial immunomodulatory effects.
Using various biological assays, synthetic analogues of aGalCer are screened for their potential to differentially promote adaptive immune responses. Assay models include assessment of their effects in such disease states as cancer, microbial infection, and autoimmune diseases.
Montamat-Sicotte DJ, Millington KA, Willcox CR, Hingley-Wilson S, Hackforth S, Innes J, Kon OM, Lammas DA, Minnikin DE, Besra GS, Willcox BE, Lalvani A.(2011) A mycolic acid-specific CD1-restricted T cell population contributes to acute and memory immune responses in human tuberculosis infection. J Clin Invest. 121:2493-503.
Sarkar D, Sidhu M, Singh A, Chen J, Lammas DA, van der Saar A, Besra GS, Bhatt A.(2011) Identification of a glycosyltransferase from Mycobacterium marinum involved in addition of a caryophyllose moiety in lipooligosaccharides J Bacteriol Mar 4. [Epub ahead of print]
de Beaucoudrey L,et al (2010). Revisiting human IL-12Rβ1 deficiency: a survey of 141 patients from 30 countries. Medicine 89:381-402
Jeffery LE, Burke F, Mura M, Zheng Y, Qureshi OS, Hewison M, Walker LS, Lammas DA, Raza K, Sansom DM.(2009) 1,25-DihydroxyvitaminD3 and Il-2 combine to inhibit T cell production of inflammatory cytokines and promote development of regulatory T cells expressing CTLA-4 and FoxP3. J Immunol.183:5458-67.
Voelz K, Lammas DA, May RC.(2009). Cytokine signalling regulates the outcome of intracellular macrophage parasitism by Cryptococcus neoformans. Infection & Immunity.77:3450-7.
Croudace JE, Curbishley SM, Mura M, Willcox CR, Illarionov PA, Besra GS, Adams DH, and Lammas DA (2008). Identification of distinct human invariant natural killer T-cell response phenotypes to alpha-galactosylceramide. BMC Immunol. 9: 71-81.
Biswas D, Qureshi OS, Lee WY, Croudace JE, Mura M, Lammas DA.(2008) ATP-induced autophagy is associated with rapid killing of intracellular mycobacteria within human monocytes/macrophages. BMC Immunol. 9:35.
Pulickal AS, Hambleton S, Callaghan MJ, Moore CE, Goulding J, Goodsall A, Baretto R, Lammas DA, Anderson ST, Levin M, Pollard AJ.(2008). Biliary Cirrhosis in a Child with Inherited Interleukin-12 Deficiency. J Trop Pediatr. 54; 269-71.
Ma H, Croudace JE, Lammas DA, May RC.(2007) Direct cell-to-cell spread of a pathogenic yeast. BMC Immunol.8:15.