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Labchan Rajbhandari

Research Scientist | Bio-Pharma | R&D | Neuroscience | Stem Cell Biologist | Virologist

About Me

Creative and highly adaptable researcher with 12+ years of experience in molecular, biochemical invitro and in-vivo based research in neuroscience, neuroimmunology, micro-fluidic device models, viral infection assays in neuronal cells and cell lines. Developed and managed several research projects studying molecular mechanism of neuroinflammation and neuronal infection due to axon injury or viral infection in stem cells or in animal models. Performed various drug screening studies to identify neuro protective drug/compounds. Differentiated and maintained patient specific iPSC derived stem cells into neurons, myeloid progenitor cells, 3D striatal spheroids and neuromuscular organoids. CRISPR-Cas9 engineering of patient specific iPSCs and validated via digital PCR. Familiar with various qualitative and quantitative data analysis software for publication as well as conference presentations.

Experience

Regeneron Pharmaceuticals Inc


Department of Velocigene

Scientist

  • Validated and optimized of patient derived iPSC lines differentiation into neuronal and non-neuronal cells involved both 2D/3D cultures such as cortical neurons, cardiomyocytes, myeloid progenitor, striatal spheroids and neuromuscular organoids.
  • Correction of point mutation in patient iPSC lines using CRISPR Cas9 engineering system.

Johns Hopkins Medicine


Division of Neuroimmunology and Neurological Infections

Sr. Research Specialist

  • Investigated varicella zoster virus infection, latency, and reactivation in both hESC based neurons and iPSC derived Sensory Neurons as neuro-inflammation model.
  • Non-viral vector based SiRNA mediated gene silencing techniques in stem cell derived neurons.
  • T cells and B cells profiling for inflammation and recovery of Leptomeningeal patients CSF in clinical studies.

University of Maryland


Department of Neurosurgery

Laboratory Manager

  • Worked under team of Dr. Jeff Winkles, Dr. Anthony Kim and Dr. Graeme Woodworth, who are working as a “Translational Therapeutics Research Group” to solve life-limiting treatment challenges in neuroscience and cancers with the help of nanomaterial.
  • Conducted optimization of nanoparticle with cytokines delivery to minimize non-specific binding, increase tissue penetration, and dispersion in rat pups model.

Johns Hopkins Medicine


Division of Neuroimmunology and Neurological Infections

Research Specialist II

  • iPSC derived neuronal cells model for Multiple Sclerosis and Amyotrophic lateral Sclerosis studies.
  • Stem cell-based axon protective drug screening such as Curcumin, Flecainide, Paroxetine, Kv 1.3

Johns Hopkins Medicine


Division of Neuroimmunology and Neurological Infections

Research Technologist

  • Human iPSC derived neurons models were used to study inflammation caused by axonal injury in diseases like Multiple Sclerosis.
  • Microglia phagocytosis of degenerating axons in mice and rats based studies that involved TLR/TRIF pathway.

Johns Hopkins Medicine


Division of Neuroimmunology and Neurological Infections

Laboratory Technician

  • Studied role of microglia in axon injury and inflammation in vitro and in-vivo models.
  • Optimization of conditions for the experiments, harvested tissue and samples for protein and DNA analysis

Education

University of Maryland Baltimore County (UMBC)

May 2016

Master of Science: Biotechnology (MPS)

Saint Cloud State University (SCSU)

December 2008

Bachelor of Science: Biotechnology, Minor: Chemistry

Projects

Stem cell differentiation and disease model

I established neuronal differentiation protocol from patient derived iPSC lines, using different commercial kits: validated with end point assays such as RT-qPCR, IF, Bulk RNA Seq, Single cell RNA Seq. Supported in myeloid progenitor, striatal spheroids and neuromuscular organoids differentiation from control and patient derived iPSC lines to study neuro-degenerative disease models. Supported in optimization of cardiomyocytes differentiation from human iPSC lines to study cardio-vascular disease models.

Correction of point mutation in patient iPSC lines using CRISPR Cas9 engineering system; validated using digital PCR, followed by single cell plating, colony picking, reconfirmation, cryopreservation.

View Project

Varicella virus (VZV) based study

Grew, maintained, and tittered various viruses such as VZV GFP, VZV WT, HSV1, EBV, Zika via plaque assays ensuring laboratory efficiency and adherence to GLP/GMP standards. Used non-viral vector based SiRNA mediated gene silencing techniques in stem cell derived neurons.

Studied Varicella Zoster Virus infection, latency, and reactivation in both hESC based neurons and iPSC derived Sensory Neurons. Analyzed RNA and protein samples via FISH, RT-PCR and western blot.

View Project

Neuronal injury Model Study

Grew, maintained, and tittered various viruses such as VZV GFP, VZV WT, HSV1, EBV, Zika via plaque assays ensuring laboratory efficiency and adherence to GLP/GMP standards. Used non-viral vector based SiRNA mediated gene silencing techniques in stem cell derived neurons.

View Project

Micro-fluidic Device co-culture system for Neuroinflammation Model study

Executed projects involving axonal injury and regeneration, microglia interaction in CNS based injury, a nerve-bone cell interaction study that were performed in micro fluidic devices.

Microglia phagocytosis of degenerating axons that involved TLR/TRIF pathway using neurons (mice & rats) and microglia were studied using microfluidic devices. Axonal-cell body protein analysis were performed via western blot and immunostain.

View Project

Neuro-protective drug/compound Screening studies

At Johns Hopkins, Involved in stem cell-based studies to analyze TBI and MS related drug screening. Used luminescence-based assay to screen high throughput axon protective drugs such as Curcumin, Flecainide, Paroxetine, Kv 1.3 along with MAPK inhibitors to stop wallerian degeneration. Studied nanoparticles-based drug delivery system in astrocytes using Flow Cytometry.

View Project

Nanoparticle based drug delivery/Injury model

Worked under team of Dr. Jeff Winkles, Dr. Anthony Kim and Dr. Graeme Woodworth, who are working as a “Translational Therapeutics Research Group” to solve life-limiting treatment challenges in neuroscience and cancers with the help of nanomaterial. Conducted optimization of nanoparticle with cytokines delivery to minimize non-specific binding, increase tissue penetration, and dispersion in rat pups model.

Conducted study of mechanical stress in astrocytes grown in matrigel based 3D culture at cellular level, a Traumatic Brain Injury Model.

View Project

Skills

References

Eric Chiao, PhD

Vice President Velocigene, Regeneron Pharmaceuticals Inc.

Arun Venkatesan, MD, PhD

Director, Johns Hopkins Encephalitis Center

Amanda Brown, PhD

Assistant Professor, Department of Neurology, Johns Hopkins University School of Medicine

Joe Steiner, PhD

Unit Head-Neurotherapeutics Developmental Unit, NINDS Translational Neuroscience Center

Achievements (Honors & Scholarships)

Dorothy Becker scholarship

2007, 2008

Saint Cloud State University (SCSU)

International Student Scholarship

2005-2008

Saint Cloud State University (SCSU)

Living the Hopkins Mission Honoree

2015

Johns Hopkins School of Medicine