Academic Title:
Assistant Professor
Primary Appointment:
Neurobiology
Additional Title:
Director, UMB Virus Vector Core (VVC)
Phone (Primary):
(410) 706-2770
Education and Training
- 1999 B.S., Biology, Veer Bahadur Singh Purvanchal University, Jaunpur, Uttar Pradesh, India
- 2001 M.S., Zoology, Veer Bahadur Singh Purvanchal University, Jaunpur, Uttar Pradesh, India
- 2010 Ph.D., Zoology, Dr. Bhim Rao Ambedkar University, Agra, Uttar Pradesh, India collaborated with Central Drug Research Insitute, Lucknow, Uttar Pradesh, India. Thesis Advisor- Dr. Sunil Kumar Puri, Ph.D., “Chemotherapeutic and Biochemical Studies with Arteether Resistant Plasmodium vinckei: A Rodent Malaria Parasite”
- 2009-2010 Postdoctoral Fellow, Pennsylvania State University, University Park, PA
- 2010-2011 Postdoctoral Fellow, Johns Hopkins University, Baltimore, MD
- 2011-2015 Postdoctoral Fellow, University of Maryland, Baltimore, MD
- 2015-2021 Research Associate, University of Maryland, Baltimore, MD
Biosketch
I have been a critical investigator identifying the crucial pathways that determine the vital role of the ventral striatum (also known as Nucleus Accumbens- NAc) in drug addiction and depression. I have a broad background in psychology, with specific training and expertise in molecular and behavioral aspects of drug addiction and depression. To this end, I have adapted novel cell type-specific transcriptome techniques to isolate mRNA from nucleus accumbens MSN subtypes in rodent drug abuse and depression models. Beyond these studies, I also found that Egr3 transcriptionally regulates mitochondrial and nuclear genes. My research findings are crucial in identifying the role of PGC1-alpha (transcriptional coactivator genes) in mitochondrial biogenesis and dynamics in behavioral responses to cocaine. My research has contributed to the novel adaptation of virus-based genetic manipulation, pharmacological, and optogenetics to behavioral models identifying molecular targets mediating behavioral responses to cocaine in NAc neuron subtypes. My work has uncovered a novel and opposing role for the transcription factor, Egr3, in mediating behavioral responses to cocaine through NAc neuron subtypes. I also have undertaken responsibilities as Vector Core Director. My core expertise in AAV-based gene therapy vector engineering and optimizing approaches have helped me uncover the functional role of the gene of interest by gene knockdown. The main thrust of my core is to deal with the modification and optimization of gene delivery reagents using innovative techniques.
Research/Clinical Keywords
addiction, depression, optogenetics, striatum, nucleus accumbens, neuron subtypes, epigenetics
Highlighted Publications
- Engeln M, Fox ME, Chandra R, Choi EY, Nam H, Qadir H, Thomas SS, Rhodes VM, Turner MD, Herman RJ, Calarco CA, Lobo MK. Transcriptome profiling of the ventral pallidum reveals a role for pallido-thalamic neurons in cocaine reward. Mol Psychiatry. 2022 Jun 28;. doi: 10.1038/s41380-022-01668-7. [Epub ahead of print] PubMed PMID: 35764708.
- Pagliusi M Jr, Franco D, Cole S, Morais-Silva G, Chandra R, Fox ME, Iñiguez SD, Sartori CR, Lobo MK. The BDNF-TrkB Pathway Acts Through Nucleus Accumbens D2 Expressing Neurons to Mediate Stress Susceptible Outcomes. Front Psychiatry. 2022;13:854494. doi: 10.3389/fpsyt.2022.854494. eCollection 2022. PubMed PMID: 35722560; PubMed Central PMCID: PMC9200970.
- Zhang HY, De Biase L, Chandra R, Shen H, Liu QR, Gardner E, Lobo MK, Xi ZX. Repeated cocaine administration upregulates CB2receptor expression in striatal medium-spiny neurons that express dopamine D1 receptors in mice. Acta Pharmacol Sin. 2022 Apr;43(4):876-888. doi: 10.1038/s41401-021-00712-6. Epub 2021 Jul 27. PubMed PMID: 34316031; PubMed Central PMCID: PMC8975868.
- Calarco CA, Fox ME, Van Terheyden S, Turner MD, Alipio JB, Chandra R, Lobo MK. Mitochondria-Related Nuclear Gene Expression in the Nucleus Accumbens and Blood Mitochondrial Copy Number After Developmental Fentanyl Exposure in Adolescent Male and Female C57BL/6 Mice. Front Psychiatry. 2021;12:737389. doi: 10.3389/fpsyt.2021.737389. eCollection 2021. PubMed PMID: 34867530; PubMed Central PMCID: PMC8637046.
- Cole SL, Chandra R, Harris M, Patel I, Wang T, Kim H, Jensen L, Russo SJ, Turecki G, Gancarz-Kausch AM, Dietz DM, Lobo MK. Cocaine-induced neuron subtype mitochondrial dynamics through Egr3 transcriptional regulation. Mol Brain. 2021 Jun 29;14(1):101. doi: 10.1186/s13041-021-00800-y. PubMed PMID: 34187517; PubMed Central PMCID: PMC8240292.
- Engeln M, Song Y, Chandra R, La A, Fox ME, Evans B, Turner MD, Thomas S, Francis TC, Hertzano R, Lobo MK. Individual differences in stereotypy and neuron subtype translatome with TrkB deletion. Mol Psychiatry. 2021 Jun;26(6):1846-1859. doi: 10.1038/s41380-020-0746-0. Epub 2020 May 4. PubMed PMID: 32366954; PubMed Central PMCID: PMC8480032.
- Engeln M, Mitra S, Chandra R, Gyawali U, Fox ME, Dietz DM, Lobo MK. Sex-Specific Role for Egr3 in Nucleus Accumbens D2-Medium Spiny Neurons Following Long-Term Abstinence From Cocaine Self-administration. Biol Psychiatry. 2020 Jun 1;87(11):992-1000. doi: 10.1016/j.biopsych.2019.10.019. Epub 2019 Nov 1. PubMed PMID: 31858986; PubMed Central PMCID: PMC7897443.
- Fox ME, Chandra R, Menken MS, Larkin EJ, Nam H, Engeln M, Francis TC, Lobo MK. Dendritic remodeling of D1 neurons by RhoA/Rho-kinase mediates depression-like behavior. Mol Psychiatry. 2020 May;25(5):1022-1034. doi: 10.1038/s41380-018-0211-5. Epub 2018 Aug 17. PubMed PMID: 30120419; PubMed Central PMCID: PMC6378138.
- Chandra R, Calarco CA, Lobo MK. Differential mitochondrial morphology in ventral striatal projection neuron subtypes. J Neurosci Res. 2019 Dec;97(12):1579-1589. doi: 10.1002/jnr.24511. Epub 2019 Aug 7. PubMed PMID: 31392754; PubMed Central PMCID: PMC7371342.
- Nam H, Chandra R, Francis TC, Dias C, Cheer JF, Lobo MK. Reduced nucleus accumbens enkephalins underlie vulnerability to social defeat stress. 2019 Oct;44(11):1876-1885. doi: 10.1038/s41386-019-0422-8. Epub 2019 May 27. PubMed PMID: 31132785; PubMed Central PMCID: PMC6784997.
- Martin JA, Werner CT, Mitra S, Zhong P, Wang ZJ, Gobira PH, Stewart AF, Zhang J, Erias K, Siemian JN, Hagarty D, Mueller LE, Neve RL, Li JX, Chandra R, Dietz KC, Lobo MK, Gancarz AM, Yan Z, Dietz DM. A novel role for the actin-binding protein drebrin in regulating opiate addiction. Nat Commun. 2019 Sep 12;10(1):4140. doi: 10.1038/s41467-019-12122-8. PubMed PMID: 31515501; PubMed Central PMCID: PMC6742638.
- Francis TC, Gaynor A, Chandra R, Fox ME, Lobo MK. The Selective RhoA Inhibitor Rhosin Promotes Stress Resiliency Through Enhancing D1-Medium Spiny Neuron Plasticity and Reducing Hyperexcitability. Biol Psychiatry. 2019 Jun 15;85(12):1001-1010. doi: 10.1016/j.biopsych.2019.02.007. Epub 2019 Feb 13. PubMed PMID: 30955841; PubMed Central PMCID: PMC7368664.
- Kronman H, Richter F, Labonté B, Chandra R, Zhao S, Hoffman G, Lobo MK, Schadt EE, Nestler EJ. Biology and Bias in Cell Type-Specific RNAseq of Nucleus Accumbens Medium Spiny Neurons. Sci Rep. 2019 Jun 6;9(1):8350. doi: 10.1038/s41598-019-44798-9. PubMed PMID: 31171808; PubMed Central PMCID: PMC6554355.
- Divakaruni SS, Van Dyke AM, Chandra R, LeGates TA, Contreras M, Dharmasri PA, Higgs HN, Lobo MK, Thompson SM, Blanpied TA. Long-Term Potentiation Requires a Rapid Burst of Dendritic Mitochondrial Fission during Induction. 2018 Nov 21;100(4):860-875.e7. doi: 10.1016/j.neuron.2018.09.025. Epub 2018 Oct 11. PubMed PMID: 30318410; PubMed Central PMCID: PMC6483400.
- Heshmati M, Aleyasin H, Menard C, Christoffel DJ, Flanigan ME, Pfau ML, Hodes GE, Lepack AE, Bicks LK, Takahashi A, Chandra R, Turecki G, Lobo MK, Maze I, Golden SA, Russo SJ. Cell-type-specific role for nucleus accumbens neuroligin-2 in depression and stress susceptibility. Proc Natl Acad Sci U S A. 2018 Jan 30;115(5):1111-1116. doi: 10.1073/pnas.1719014115. Epub 2018 Jan 16. PubMed PMID: 29339486; PubMed Central PMCID: PMC5798379.
- Chandra R, Engeln M, Schiefer C, Patton MH, Martin JA, Werner CT, Riggs LM, Francis TC, McGlincy M, Evans B, Nam H, Das S, Girven K, Konkalmatt P, Gancarz AM, Golden SA, Iñiguez SD, Russo SJ, Turecki G, Mathur BN, Creed M, Dietz DM, Lobo MK. Drp1 Mitochondrial Fission in D1 Neurons Mediates Behavioral and Cellular Plasticity during Early Cocaine Abstinence. 2017 Dec 20;96(6):1327-1341.e6. doi: 10.1016/j.neuron.2017.11.037. PubMed PMID: 29268097; PubMed Central PMCID: PMC5747376.
- Francis TC, Chandra R, Gaynor A, Konkalmatt P, Metzbower SR, Evans B, Engeln M, Blanpied TA, Lobo MK. Molecular basis of dendritic atrophy and activity in stress susceptibility. Mol Psychiatry. 2017 Nov;22(11):1512-1519. doi: 10.1038/mp.2017.178. Epub 2017 Sep 12. PubMed PMID: 28894298; PubMed Central PMCID: PMC5747312.
- Förstera B, Muñoz B, Lobo MK, Chandra R, Lovinger DM, Aguayo LG. Presence of ethanol-sensitive glycine receptors in medium spiny neurons in the mouse nucleus accumbens. J Physiol. 2017 Aug 1;595(15):5285-5300. doi: 10.1113/JP273767. Epub 2017 Jun 23. PubMed PMID: 28524260; PubMed Central PMCID: PMC5538198.
- Chandra R, Francis TC, Nam H, Riggs LM, Engeln M, Rudzinskas S, Konkalmatt P, Russo SJ, Turecki G, Iniguez SD, Lobo MK. Reduced Slc6a15 in Nucleus Accumbens D2-Neurons Underlies Stress Susceptibility. J Neurosci. 2017 Jul 5;37(27):6527-6538. doi: 10.1523/JNEUROSCI.3250-16.2017. Epub 2017 Jun 2. PubMed PMID: 28576941; PubMed Central PMCID: PMC5511883.
- Castro A, Li Y, Raver C, Chandra R, Masri R, Lobo MK, Keller A. Neuropathic pain after chronic nerve constriction may not correlate with chloride dysregulation in mouse trigeminal nucleus caudalis neurons. 2017 Jul;158(7):1366-1372. doi: 10.1097/j.pain.0000000000000926. PubMed PMID: 28426550; PubMed Central PMCID: PMC5482239.
- Chandra R, Lobo MK. Beyond Neuronal Activity Markers: Select Immediate Early Genes in Striatal Neuron Subtypes Functionally Mediate Psychostimulant Addiction. Front Behav Neurosci. 2017;11:112. doi: 10.3389/fnbeh.2017.00112. eCollection 2017. Review. PubMed PMID: 28642692; PubMed Central PMCID: PMC5462953.
- Chandra R, Engeln M, Francis TC, Konkalmatt P, Patel D, Lobo MK. A Role for Peroxisome Proliferator-Activated Receptor Gamma Coactivator-1α in Nucleus Accumbens Neuron Subtypes in Cocaine Action. Biol Psychiatry. 2017 Apr 1;81(7):564-572. doi: 10.1016/j.biopsych.2016.10.024. Epub 2016 Oct 28. PubMed PMID: 27939396; PubMed Central PMCID: PMC5346327.
- Creed M, Ntamati NR, Chandra R, Lobo MK, Lüscher C. Convergence of Reinforcing and Anhedonic Cocaine Effects in the Ventral Pallidum. 2016 Oct 5;92(1):214-226. doi: 10.1016/j.neuron.2016.09.001. Epub 2016 Sep 22. PubMed PMID: 27667004; PubMed Central PMCID: PMC8480039.
- Damez-Werno DM, Sun H, Scobie KN, Shao N, Rabkin J, Dias C, Calipari ES, Maze I, Pena CJ, Walker DM, Cahill ME, Chandra R, Gancarz A, Mouzon E, Landry JA, Cates H, Lobo MK, Dietz D, Allis CD, Guccione E, Turecki G, Defilippi P, Neve RL, Hurd YL, Shen L, Nestler EJ. Histone arginine methylation in cocaine action in the nucleus accumbens. Proc Natl Acad Sci U S A. 2016 Aug 23;113(34):9623-8. doi: 10.1073/pnas.1605045113. Epub 2016 Aug 9. PubMed PMID: 27506785; PubMed Central PMCID: PMC5003250.
- Chandra R, Puri SK. Reversal Effect of Doxorubicin on Arteether Resistance in Rodent Malaria Parasite Plasmodium vinckei. Journal of Drug Research and Development. 2015 August; 1(1). doi: http://dx.doi.org/10.16966/2470-1009.104.
- Chandra R, Francis TC, Konkalmatt P, Amgalan A, Gancarz AM, Dietz DM, Lobo MK. Opposing role for Egr3 in nucleus accumbens cell subtypes in cocaine action. J Neurosci. 2015 May 20;35(20):7927-37. doi: 10.1523/JNEUROSCI.0548-15.2015. PubMed PMID: 25995477; PubMed Central PMCID: PMC4438133.
- Chandra R, Kumar S, Puri SK. Buthionine sulfoximine increases the efficacy of arteether antimalarial activity in arteether-resistant Plasmodium vinckei by glutathione depletion. MalariaWorld journal. 2015 April; 6(4).
- Chandra R, Puri SK. Arteether resistance reversal by ketoconazole/fluconazole in rodent malaria parasite Plasmodium vinckei. Parasitol Res. 2015 Mar;114(3):1239-43. doi: 10.1007/s00436-015-4321-6. Epub 2015 Jan 25. PubMed PMID: 25616344.
- Francis TC, Chandra R, Friend DM, Finkel E, Dayrit G, Miranda J, Brooks JM, Iñiguez SD, O'Donnell P, Kravitz A, Lobo MK. Nucleus accumbens medium spiny neuron subtypes mediate depression-related outcomes to social defeat stress. Biol Psychiatry. 2015 Feb 1;77(3):212-222. doi: 10.1016/j.biopsych.2014.07.021. Epub 2014 Jul 28. PubMed PMID: 25173629; PubMed Central PMCID: PMC5534173.
- Bahia AC, Dong Y, Blumberg BJ, Mlambo G, Tripathi A, BenMarzouk-Hidalgo OJ, Chandra R, Dimopoulos G. Exploring Anopheles gut bacteria for Plasmodium blocking activity. Environ Microbiol. 2014 Sep;16(9):2980-94. doi: 10.1111/1462-2920.12381. Epub 2014 Feb 24. PubMed PMID: 24428613; PubMed Central PMCID: PMC4099322.
- Thaipisuttikul I, Hittle LE, Chandra R, Zangari D, Dixon CL, Garrett TA, Rasko DA, Dasgupta N, Moskowitz SM, Malmström L, Goodlett DR, Miller SI, Bishop RE, Ernst RK. A divergent Pseudomonas aeruginosa palmitoyltransferase essential for cystic fibrosis-specific lipid A. Mol Microbiol. 2014 Jan;91(1):158-74. doi: 10.1111/mmi.12451. Epub 2013 Nov 27. PubMed PMID: 24283944; PubMed Central PMCID: PMC3935289.
- Lobo MK, Zaman S, Damez-Werno DM, Koo JW, Bagot RC, DiNieri JA, Nugent A, Finkel E, Chaudhury D, Chandra R, Riberio E, Rabkin J, Mouzon E, Cachope R, Cheer JF, Han MH, Dietz DM, Self DW, Hurd YL, Vialou V, Nestler EJ. ΔFosB induction in striatal medium spiny neuron subtypes in response to chronic pharmacological, emotional, and optogenetic stimuli. J Neurosci. 2013 Nov 20;33(47):18381-95. doi: 10.1523/JNEUROSCI.1875-13.2013. PubMed PMID: 24259563; PubMed Central PMCID: PMC3834048.
- Chandra R, Lenz JD, Gancarz AM, Chaudhury D, Schroeder GL, Han MH, Cheer JF, Dietz DM, Lobo MK. Optogenetic inhibition of D1R containing nucleus accumbens neurons alters cocaine-mediated regulation of Tiam1. Front Mol Neurosci. 2013;6:13. doi: 10.3389/fnmol.2013.00013. eCollection 2013. PubMed PMID: 23745104; PubMed Central PMCID: PMC3662885.
- Dong Y, Cirimotich CM, Pike A, Chandra R, Dimopoulos G. Anopheles NF-κB-regulated splicing factors direct pathogen-specific repertoires of the hypervariable pattern recognition receptor AgDscam. Cell Host Microbe. 2012 Oct 18;12(4):521-30. doi: 10.1016/j.chom.2012.09.004. PubMed PMID: 23084919; PubMed Central PMCID: PMC3614911.
- Cui L, Wang Z, Miao J, Miao M, Chandra R, Jiang H, Su XZ, Cui L. Mechanisms of in vitro resistance to dihydroartemisinin in Plasmodium falciparum. Mol Microbiol. 2012 Oct;86(1):111-28. doi: 10.1111/j.1365-2958.2012.08180.x. Epub 2012 Aug 6. PubMed PMID: 22812578; PubMed Central PMCID: PMC3455110.
- Chandra R, Kumar S, Puri SK. Plasmodium vinckei: infectivity of arteether-sensitive and arteether-resistant parasites in different strains of mice. Parasitol Res. 2011 Oct;109(4):1143-9. doi: 10.1007/s00436-011-2358-8. Epub 2011 Apr 9. PubMed PMID: 21479576.
- Chandra R, Tripathi LM, Saxena JK, Puri SK. Implication of intracellular glutathione and its related enzymes on resistance of malaria parasites to the antimalarial drug arteether. Parasitol Int. 2011 Jan;60(1):97-100. doi: 10.1016/j.parint.2010.09.009. Epub 2010 Oct 30. PubMed PMID: 20971213.
- Babu GN, Kumar A, Chandra R, Puri SK, Kalita J, Misra UK. Elevated inflammatory markers in a group of amyotrophic lateral sclerosis patients from northern India. Neurochem Res. 2008 Jun;33(6):1145-9. doi: 10.1007/s11064-007-9564-x. Epub 2008 Feb 2. PubMed PMID: 18246426.
- Babu GN, Kumar A, Chandra R, Puri SK, Singh RL, Kalita J, Misra UK. Oxidant-antioxidant imbalance in the erythrocytes of sporadic amyotrophic lateral sclerosis patients correlates with the progression of disease. Neurochem Int. 2008 May;52(6):1284-9. doi: 10.1016/j.neuint.2008.01.009. Epub 2008 Jan 20. PubMed PMID: 18308427.
- Puri SK, Chandra R. Plasmodium vinckei: selection of a strain exhibiting stable resistance to arteether. Exp Parasitol. 2006 Oct;114(2):129-32. doi: 10.1016/j.exppara.2006.02.017. Epub 2006 Apr 19. PubMed PMID: 16624307.
Awards and Affiliations
2015- NARSAD Young Investigator Award
2015- Present Consulting Editor, Advances in Genomics and Genetics
2006-2009 Senior Research Fellowship from the Council of Scientific and Industrial Research, New Delhi
2004-2006 Junior Research Fellowship (F.NO. 10-2(5) 2003(I)-EU.II) from the Council of Scientific and Industrial Research, New Delhi
Grants and Contracts
NARSAD Young Investigator Award (PI) 01/01/16-12/31/17
Cell Subtype Molecular Mechanisms of Mitochondria Dynamics in Depression” from the Brain and Behavior Research Foundation”
The goal of this study is to examine mitochondrial biogenesis and function genes in NAc neurons subtypes of susceptible and resilient mice after chronic social defeat stress (CSDS) model. We also genetically manipulate Pgc1α levels in D1-MSNs and D2-MSNs during social defeat stress (SDS).