Sreekanth Chalasani, PhD

Professor

Molecular Neurobiology Laboratory

Jesse and Caryl Philips Foundation Chair

Salk Institute for Biological Studies - Publications

all Publications


Cowen, M.H., Haskell, D., Zoga, K., Reddy, K.C., Chalasani, S.H., Hart, M.P. Conserved autism-associated genes tune social feeding behavior in C. elegans. (2024) Nature Communications. 15(1):9301. DOI: 10.1038/s41467-024-53590-x

+ expand abstract


Mackie, M., Le, V.V., Carstensen, H.R., Kushnir, N.R., Castro, D.L., Dimov, I.M., Quach, K.T., Cook, S.J., Hobert, O., Chalasani, S.H., Hong, R.L. Evolution of lateralized gustation in nematodes. (2024) bioRxiv. DOI: 10.1101/2024.08.31.610597

+ expand abstract


Muirhead, C.S., Reddy, K.C., Guerra, S., Rieger, M., Hart, M.P., Srinivasan, J., Chalasani, S.H. Neurexin drives Caenorhabditis elegans avoidance behavior independently of its post-synaptic binding partner neuroligin. (2024) G3. 14(8). DOI: 10.1093/g3journal/jkae111

+ expand abstract


Haghani, N.B., Lampe, R.H., Samuel, B.S., Chalasani, S.H., Matty, M.A. Identification and characterization of a skin microbiome on suggests environmental microbes confer cuticle protection. (2024) Microbiol Spectr.:e0016924 DOI: 10.1128/spectrum.00169-24

+ expand abstract


Haley, J.A., Chalasani, S.H. C. elegans foraging as a model for understanding the neuronal basis of decision-making. (2024) Cellular and Molecular Life Sciences. 81(1):252. DOI: 10.1007/s00018-024-05223-1

+ expand abstract


Cowen, M.H., Reddy, K.C., Chalasani, S.H., Hart, M.P. Conserved autism-associated genes tune social feeding behavior in . (2023) bioRxiv. DOI: 10.1101/2023.12.05.570116

+ expand abstract


Pribadi, A., Rieger, M.A., Rosales, K., Reddy, K.C., Chalasani, S.H. Dopamine signaling regulates predator-driven changes in egg laying behavior. (2023) Elife. 12. DOI: 10.7554/eLife.83957

+ expand abstract


Procko, C., Wong, W.M., Patel, J., Mousavi, S.A.R., Dabi, T., Duque, M., Baird, L., Chalasani, S.H., Chory, J. Mutational analysis of mechanosensitive ion channels in the carnivorous Venus flytrap plant. (2023) Current Biology. DOI: 10.1016/j.cub.2023.06.048

+ expand abstract


Magaram, U., Weiss, C., Vasan, A., Reddy, K.C., Friend, J., Chalasani, S.H. Two pathways are required for ultrasound-evoked behavioral changes in Caenorhabditis elegans. (2022) PLOS One. 17(5):e0267698. DOI: 10.1371/journal.pone.0267698

+ expand abstract


Matty, M.A., Lau, H.E., Haley, J.A., Singh, A., Chakraborty, A., Kono, K., Reddy, K.C., Hansen, M., Chalasani, S.H. Intestine-to-neuronal signaling alters risk-taking behaviors in food-deprived Caenorhabditis elegans. (2022) PLOS Genetics. 18(5):e1010178. DOI: 10.1371/journal.pgen.1010178

+ expand abstract


Mei, J., Vasan, A., Magaram, U., Takemura, K., Chalasani, S.H., Friend, J. Well-free agglomeration and on-demand three-dimensional cell cluster formation using guided surface acoustic waves through a couplant layer. (2022) Biomed Microdevices. 24(2):18. DOI: 10.1007/s10544-022-00617-z

+ expand abstract


Vasan, A., Allein, F., Duque, M., Magaram, U., Boechler, N., Chalasani, S.H., Friend, J. Microscale concert hall acoustics to produce uniform ultrasound stimulation for targeted sonogenetics in hsTRPA1-transfected cells. (2022) Adv Nanobiomed Res. 2(5). DOI: 10.1002/anbr.202100135

+ expand abstract


Quach, K.T., Chalasani, S.H. Flexible reprogramming of Pristionchus pacificus motivation for attacking Caenorhabditis elegans in predator-prey competition. (2022) Current Biology. DOI: 10.1016/j.cub.2022.02.033

+ expand abstract


Duque, M., Lee-Kubli, C.A., Tufail, Y., Magaram, U., Patel, J., Chakraborty, A., Mendoza Lopez, J., Edsinger, E., Vasan, A., Shiao, Weiss, C., Friends, J., Chalasani, S.H. Sonogenetic control of mammalian cells using exogenous Transient Receptor Potential A1 channels (2022) Nature Communications. 13. DOI: https://doi.org/10.1038/s41467-022-28205-y

+ expand abstract


Vasan, A., Orosco, J., Magaram, U., Duque, M., Weiss, C., Tufail, Y., Chalasani, S.H., Friend, J. Ultrasound Mediated Cellular Deflection Results in Cellular Depolarization. (2021) Advanced Science .:e2101950 DOI: 10.1002/advs.202101950

+ expand abstract


How, J.J., Navlakha, S., Chalasani, S.H. Neural network features distinguish chemosensory stimuli in Caenorhabditis elegans. (2021) PLOS Computational Biology. 17(11):e1009591. DOI: 10.1371/journal.pcbi.1009591

+ expand abstract


Prakash, D., Ms, A., Radhika, B., Venkatesan, R., Chalasani, S.H., Singh, V. 1-Undecene from Pseudomonas aeruginosa is an olfactory signal for flight-or-fight response in Caenorhabditis elegans. (2021) EMBO Journal.:e106938 DOI: 10.15252/embj.2020106938

+ expand abstract


Quach, K.T., Chalasani, S.H. Intraguild predation between and : a complex interaction with the potential for aggressive behaviour. (2020) Journal of Neurogenetics.:1-16 DOI: 10.1080/01677063.2020.1833004

+ expand abstract


Matty, M.A., Chalasani, S.H. Microbial Mind Control. (2020) Cell Host & Microbe. 28(2):147-149. DOI: 10.1016/j.chom.2020.07.016

+ expand abstract


Liu, Z., Kariya, M.J., Chute, C.D., Pribadi, A.K., Leinwand, S.G., Tong, A., Curran, K.P., Bose, N., Schroeder, F.C., Srinivasan, J., Chalasani, S.H. Predator-secreted sulfolipids induce defensive responses in C. elegans. (2018) Nature Communications. 9(1):1128. DOI: 10.1038/s41467-018-03333-6

+ expand abstract


Hale, L.A., Lee, E.S., Pantazis, A.K., Chronis, N., Chalasani, S.H. Altered Sensory Code Drives Juvenile-to-Adult Behavioral Maturation in Caenorhabditis elegans. (2017) eNeuro. 3(6). DOI: 10.1523/ENEURO.0175-16.2016

+ expand abstract


Leinwand, S.G., Yang, C.J., Bazopoulou, D., Chronis, N., Srinivasan, J., Chalasani, S.H. Circuit mechanisms encoding odors and driving aging-associated behavioral declines in Caenorhabditis elegans. (2015) Elife. 4:e10181. DOI: 10.7554/eLife.10181

+ expand abstract


Ibsen, S., Tong, A., Schutt, C., Esener, S., Chalasani, S.H. Sonogenetics is a non-invasive approach to activating neurons in Caenorhabditis elegans. (2015) Nature Communications. 6:8264. DOI: 10.1038/ncomms9264

+ expand abstract


Calhoun, A.J., Tong, A., Pokala, N., Fitzpatrick, J.A., Sharpee, T.O., Chalasani, S.H. Neural Mechanisms for Evaluating Environmental Variability in Caenorhabditis elegans. (2015) Neuron. 86(2):428-41. DOI: 10.1016/j.neuron.2015.03.026

+ expand abstract


Erickstad, M., Hale, L.A., Chalasani, S.H., Groisman, A. A microfluidic system for studying the behavior of zebrafish larvae under acute hypoxia. (2015) Lab on a Chip. 15(3):857-66. DOI: 10.1039/c4lc00717d

+ expand abstract


Calhoun, A.J., Chalasani, S.H., Sharpee, T.O. Maximally informative foraging by Caenorhabditis elegans. (2014) Elife. 3. DOI: 10.7554/eLife.04220

+ expand abstract


Lau, H.E., Chalasani, S.H. Divergent and convergent roles for insulin-like peptides in the worm, fly and mammalian nervous systems. (2014) Invertebrate Neuroscience. 14(2):71-8. DOI: 10.1007/s10158-013-0166-9

+ expand abstract


Sharpee, T.O., Calhoun, A.J., Chalasani, S.H. Information theory of adaptation in neurons, behavior, and mood. (2014) Current Opinion in Neurobiology. 25:47-53. DOI: 10.1016/j.conb.2013.11.007

+ expand abstract


Leinwand, S.G., Chalasani, S.H. From genes to circuits and behaviors: Neuropeptides expand the coding potential of the nervous system. (2014) Worm. 3:e27730. DOI: 10.4161/worm.27730

+ expand abstract


Joens, M.S., Huynh, C., Kasuboski, J.M., Ferranti, D., Sigal, Y.J., Zeitvogel, F., Obst, M., Burkhardt, C.J., Curran, K.P., Chalasani, S.H., Stern, L.A., Goetze, B., Fitzpatrick, J.A. Helium Ion Microscopy (HIM) for the imaging of biological samples at sub-nanometer resolution. (2013) Scientific Reports. 3:3514. DOI: 10.1038/srep03514

+ expand abstract


Leinwand, S.G., Chalasani, S.H. Neuropeptide signaling remodels chemosensory circuit composition in Caenorhabditis elegans. (2013) Nature Neuroscience. 16(10):1461-7. DOI: 10.1038/nn.3511

+ expand abstract


Curran, K.P., Chalasani, S.H. Serotonin circuits and anxiety: what can invertebrates teach us? (2012) Invertebrate Neuroscience. 12(2):81-92. DOI: 10.1007/s10158-012-0140-y

+ expand abstract


Leinwand, S.G., Chalasani, S.H. Olfactory networks: from sensation to perception. (2011) Current Opinion in Genetics & Development. 21(6):806-11. DOI: 10.1016/j.gde.2011.07.006

+ expand abstract


Chalasani, S.H., Kato, S., Albrecht, D.R., Nakagawa, T., Abbott, L.F., Bargmann, C.I. Neuropeptide feedback modifies odor-evoked dynamics in Caenorhabditis elegans olfactory neurons. (2010) Nature Neuroscience. 13(5):615-21. DOI: 10.1038/nn.2526

+ expand abstract


Tian, L., Hires, S.A., Mao, T., Huber, D., Chiappe, M.E., Chalasani, S.H., Petreanu, L., Akerboom, J., McKinney, S.A., Schreiter, E.R., Bargmann, C.I., Jayaraman, V., Svoboda, K., Looger, L.L. Imaging neural activity in worms, flies and mice with improved GCaMP calcium indicators. (2009) Nature Methods. 6(12):875-81. DOI: 10.1038/nmeth.1398

+ expand abstract


Macosko, E.Z., Pokala, N., Feinberg, E.H., Chalasani, S.H., Butcher, R.A., Clardy, J., Bargmann, C.I. A hub-and-spoke circuit drives pheromone attraction and social behaviour in C. elegans. (2009) Nature. 458(7242):1171-5. DOI: 10.1038/nature07886

+ expand abstract


Tsunozaki, M., Chalasani, S.H., Bargmann, C.I. A behavioral switch: cGMP and PKC signaling in olfactory neurons reverses odor preference in C. elegans. (2008) Neuron. 59(6):959-71. DOI: 10.1016/j.neuron.2008.07.038

+ expand abstract


Chalasani, S.H., Chronis, N., Tsunozaki, M., Gray, J.M., Ramot, D., Goodman, M.B., Bargmann, C.I. Dissecting a circuit for olfactory behaviour in Caenorhabditis elegans. (2007) Nature. 450(7166):63-70. DOI: 10.1038/nature06292

+ expand abstract


Chalasani, S.H., Feinberg, E.H., Hilliard, M.A. Global 'worming'. (2007) Genome Biology. 8(9):314. DOI: 10.1186/gb-2007-8-9-314


Chalasani, S.H., Sabol, A., Xu, H., Gyda, M.A., Rasband, K., Granato, M., Chien, C.B., Raper, J.A. Stromal cell-derived factor-1 antagonizes slit/robo signaling in vivo. (2007) Journal of Neuroscience. 27(5):973-80. DOI: 10.1523/JNEUROSCI.4132-06.2007

+ expand abstract


Kreibich, T.A., Chalasani, S.H., Raper, J.A. The neurotransmitter glutamate reduces axonal responsiveness to multiple repellents through the activation of metabotropic glutamate receptor 1. (2004) Journal of Neuroscience. 24(32):7085-95. DOI: 10.1523/JNEUROSCI.0349-04.2004

+ expand abstract


Vatamaniuk, O.K., Mari, S., Lang, A., Chalasani, S., Demkiv, L.O., Rea, P.A. Phytochelatin synthase, a dipeptidyltransferase that undergoes multisite acylation with gamma-glutamylcysteine during catalysis: stoichiometric and site-directed mutagenic analysis of arabidopsis thal (2004) Journal of Biological Chemistry. 279(21):22449-60. DOI: 10.1074/jbc.M313142200

+ expand abstract


Chalasani, S.H., Baribaud, F., Coughlan, C.M., Sunshine, M.J., Lee, V.M., Doms, R.W., Littman, D.R., Raper, J.A. The chemokine stromal cell-derived factor-1 promotes the survival of embryonic retinal ganglion cells. (2003) Journal of Neuroscience. 23(11):4601-12. DOI: https://doi.org/10.1523/JNEUROSCI.23-11-04601.2003

+ expand abstract


Chalasani, S.H., Sabelko, K.A., Sunshine, M.J., Littman, D.R., Raper, J.A. A chemokine, SDF-1, reduces the effectiveness of multiple axonal repellents and is required for normal axon pathfinding. (2003) Journal of Neuroscience. 23(4):1360-71. DOI: https://doi.org/10.1523/JNEUROSCI.23-04-01360.2003

+ expand abstract


Pribadi, A.K., Chalasani, S.H. Fear conditioning in invertebrates. (n.d.) Front Behav Neurosci. 16:1008818. DOI: 10.3389/fnbeh.2022.1008818

+ expand abstract


Hsiao, J., Deng, L.C., Moroz, L.L., Chalasani, S.H., Edsinger, E. Ocean to Tree: Leveraging Single-Molecule RNA-Seq to Repair Genome Gene Models and Improve Phylogenomic Analysis of Gene and Species Evolution. (n.d.) Methods in Molecular Biology. 2757:461-490. DOI: 10.1007/978-1-0716-3642-8_19

+ expand abstract


Education

BS, Genetics, Zoology, and Chemistry, Osmania University, India
ADV DIP, Computer Science, National Institute of Information Technology
PhD, Biology, University of Pennsylvania
Postdoctoral Fellow, Rockefeller University (lab moved from UCSF)


Affiliations


Awards & Honors

  • National Postdoctoral Association (NPA) Gallagher Mentor Award, 2021
  • National Institutes of Health Brain Initiative Awardee, 2016
  • Glenn Award for Research in Biological Mechanisms of Aging, 2015
  • W.M. Keck Foundation Award, 2013
  • Rita Allen Foundation Scholar, 2012
  • The March of Dimes Basil O’connor Award, 2010
  • Searle Scholar, 2010