Jennifer Philips Department of Medicine, Division of Infectious Diseases, New York University School of Medicine, USA
1 protocol
Andrea Introini Karolinska Institutet
8 protocols

Elizabeth Clarke Kaiser Permanente
5 protocols

Fabienne Fiesel Mayo Clinic
1 protocol

Fanglian He University of Pennsylvania
205 protocols

Alka Mehra
  • Research scientist, Institute of Genomics and Integrative Biology
Research focus
  • Immunology
  • host-pathogen interactions, macrophages, innate immunity
  • 2 Author merit
  • 7 Reviewer merit
  • 7 Editor merit


Ph.D., Jawaharlal Nehru University, 2006


1. Portal-Celhay C, Tufariello JM, Srivastava S, Zahra A, Klevorn T, Grace PS, Mehra A, Park HS, Ernst JD, Jacobs Jr. WR, and Philips JA. (2016) Mycobacterium tuberculosis EsxH inhibits ESCRT-dependent CD4+ T cell activation. Nature Microbiology Dec5 (2) 16232.

2. Mehra A. (2015). Microbial CRISPR-Cas System: From Bacterial Immunity to Next-Generation Antimicrobials. Microbial Factories (Springer India 2015, ISBN No.: 978-81-322-2594-2) Volume 2, Chapter 14. 217-234. DOI: 10.1007/978-81-322-2595-9_14.

3. Mehra A. (2014). Phagolysosomal Trafficking Assay. Bio-protocol 4 (13) e1163; DOI:

4. Mehra A* and Philips JA*. (2014). Analysis of Mycobacterial Protein Secretion. Bio-protocol 4 (12) e1159; *Co-corresponding author. DOI:

5. Siegrist MS, Steigedal M, Ahmad R, Mehra A, Dragset MS, Schuster BM, Philips JA, Carr SA, Rubin EJ. (2014). Mycobacterial Esx-3 requires multiple components for iron acquisition. mBio. 5 (3) e01073-14.

6. Mehra A*, Zahra A*, Thompson V, Sirisaengtaksin N, Wells A, Porto M, Köster S, Penberthy K, Kubota Y, Dricot A, Rogan D, Vidal M, Bean AJ, Hill D, Philips JA. (2013). Mycobacterium tuberculosis type VII secreted effector, EsxH targets host ESCRT to inhibit intracellular trafficking. PLOS Pathogens. 9(10) e100373. * Equal contribution.

7. Singh Y, Kaul V, Mehra A, Chatterjee S, Tousif S, Dwivedi VP, Suar M, Kaer LV, Bishai WR and Das G. (2013). Mycobacterium tuberculosis controls miR99b expression in infected murine dendritic cells to modulate host immunity. Journal of Biological Chemistry. Feb 15; 288(7): 5056-61.

8. Juranek J, Kothary P, Mehra A, Hays A, Brannagan III TH, Schmidt AM. (2013). Increased expression of the Receptor for Advanced End-Glycation Products in the neuropathic peripheral nerve of human patients. Brain and Behaviour. 3(6) 701-709.

9. Mehra A, Bhattacharya S and Bhattacharya A. (2007). Identification of a novel lysine rich protein from Entamoeba histolytica. American J Biochemistry and Biotechnology. 3(4): 193-198.

10. Mehra A, Fredrick J, Petri WA Jr, Bhattacharya S and Bhattacharya A. (2006). Expression and function of a family of transmembrane kinases from the protozoan parasite Entamoeba histolytica. Infect and Immun. Sep; 74(9): 5341-51.

11. Arya R, Mehra A, Bhattacharya S, Vishwakarma RA and Bhattacharya A. (2003). Biosynthesis of Entamoeba histolytica Proteophosphoglycan in vitro. Mol. Biochem. Parasitol. Jan, 126 (1): 1-8.

2 Protocols published
Phagolysosomal Trafficking Assay
Author:  Alka Mehra, date: 07/05/2014, view: 6096, Q&A: 0
Phagolysosomal trafficking is an important innate defense pathway that clears microbes by delivering them to lysosomes, the degradative compartment of the cell. Mycobacterium tuberculosis (Mtb), the causative agent of tuberculosis, subverts ...
Analysis of Mycobacterial Protein Secretion
Authors:  Alka Mehra and Jennifer A. Philips, date: 06/20/2014, view: 5214, Q&A: 0
Mycobacterium tuberculosis (Mtb) is the causative agent of tuberculosis. Analysis of proteins secreted by Mtb has been of interest to the field of tuberculosis research since certain secreted proteins interact with the host to promote ...
7 Protocols reviewed
In vivo Imaging of Tumor and Immune Cell Interactions in the Lung
Authors:  Richard N. Hanna, Grzegorz Chodaczek and Catherine C. Hedrick, date: 10/20/2016, view: 1966, Q&A: 0
Immunotherapy has demonstrated great therapeutic potential by activating the immune system to fight cancer. However, little is known about the specific dynamics of interactions that occur between tumor and immune cells. In this protocol we describe ...
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Phagocytosis Assay of Microglia for Dead Neurons in Primary Rat Brain Cell Cultures
Authors:  Xiurong Zhao, Liyan Zhang, Shun-Ming Ting and Jaroslaw Aronowski, date: 04/20/2016, view: 2569, Q&A: 0
Clearance of dead brain tissue including the dead neurons through phagocytosis is an endogenous function of microglia in the brain, which is critical for inflammation resolution after ischemic stroke or head trauma. By regulating the function or ...
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7 Protocols edited
Rearing of Culex spp. and Aedes spp. Mosquitoes
Mosquito-transmitted pathogens cause major public health problems and contribute substantially to the global burden of disease. Aedes mosquitoes transmit dengue, Zika, yellow fever, and Chikungunya viruses; Culex mosquitoes ...
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Bioelectrospray Methodology for Dissection of the Host-pathogen Interaction in Human Tuberculosis
Authors:  Liku B Tezera, Magdalena K Bielecka and Paul T Elkington, date: 07/20/2017, view: 975, Q&A: 0
Standard cell culture models have been used to investigate disease pathology and to test new therapies for over fifty years. However, these model systems have often failed to mimic the changes occurring within three-dimensional (3-D) space where ...
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