Herman P. Schwan Distinguished Lecture: “Nucleoside-modified mRNA-LNP therapeutics” (Drew Weissman, Perelman School of Medicine)

We hope you will join us for the Spring 2022 Herman P. Schwan Distinguished Lecture by Dr. Drew Weissman, hosted by the Department of Bioengineering.

Date: Tuesday, March 29, 2022
Time: 3:30-5:00 PM
Location: Bodek Lounge, Houston Hall
Reception to follow
Zoom Link
Password: schwan22

Drew Weissman, M.D., Ph.D.

Speaker: Drew Weissman, M.D., Ph.D.
Roberts Family Professor in Vaccine Research, Department of Medicine
Perelman School of Medicine
University of Pennsylvania


Vaccines prevent 4-5 million deaths a year making them the principal tool of medical intervention worldwide. Nucleoside-modified mRNA was developed over 15 years ago and has become the darling of the COVID-19 pandemic with the first 2 FDA approved vaccines based on it. These vaccines show greater than 90% efficacy and outstanding safety in clinical use. The mechanism for the outstanding immune response induction are the prolonged production of antigen leading to continuous loading of germinal centers and the adjuvant effect of the LNPs, which selectively stimulate T follicular helper cells that drive germinal center responses. Vaccine against many pathogens, including HIV, HCV, HSV2, CMV, universal influenza, coronavirus variants, pancoronavirus, nipah, norovirus, malaria, TB, and many others are currently in development. Nucleoside-modified mRNA is also being developed for therapeutic protein delivery. Clinical trials with mRNA encoded monoclonal antibodies are underway and many other therapeutic or genetic deficient proteins are being developed. Finally, nucleoside-modified mRNA-LNPs are being developed and used for gene therapy. Cas9 knockout to treat transthyretin amyloidosis has shown success in phase 1 trials. We have developed the ability to target specific cells and organs, including lung, brain, heart, CD4+ cells, all T cells, and bone marrow stem cells, with LNPs allowing specific delivery of gene editing and insertion systems to treat diseases such as sickle cell anemia, Nucleoside-modified mRNA will have an enormous potential in the development of new medical therapies.


Drew Weissman, M.D., Ph.D. is a professor of Medicine at the Perelman School of Medicine, University of Pennsylvania. He received his graduate degrees from Boston University School of Medicine. Dr. Weissman, in collaboration with Dr. Katalin Karikó, discovered the ability of modified nucleosides in RNA to suppress activation of innate immune sensors and increase the translation of mRNA containing certain modified nucleosides. The nucleoside-modified mRNA-lipid nanoparticle vaccine platform Dr. Weissman’s lab created is used in the first 2 approved COVID-19 vaccines by Pfizer/BioNTech and Moderna. They continue to develop other vaccines that induce potent antibody and T cell responses with mRNA–based vaccines. Dr. Weissman’s lab also develops methods to replace genetically deficient proteins, edit the genome, and specifically target cells and organs with mRNA-LNPs, including lung, heart, brain, CD4+ cells, all T cells, and bone marrow stem cells.

About the Schwan Lecture:

The Herman P. Schwan Distinguished Lecture is in honor of one of the founding members of the Department of Bioengineering, who emigrated from Germany after World War II and helped create the field of bioengineering in the US. It recognizes people with a similar transformative impact on the field of bioengineering.

BE Seminar: “Neural Engineering and the Primate Brain: Working at the Electrical and Optical Interface” (Bijan Pesaran)

Our final Penn Bioengineering seminar of the fall semester will take place this Thursday. Keep an eye on the BE events calendar for upcoming spring seminars.

Speaker: Bijan Pesaran, Ph.D.
Neural Science
New York University

Date: Thursday, December 16, 2021
Time: 3:30-4:30 PM EST
Zoom – check email for link
Room: Moore 216

Abstract: Neural engineering is enjoying an era of transformative growth. Classical methods that dominated the neurosciences for decades are being replaced by powerful new technologies. In this talk, I will discuss how to engineer electrical and optical interfaces to the primate brain. I will first present work on electrode interfaces that stimulate and record at the surface of and within the brain. I will show how simultaneously measuring and manipulating neurons immediately beneath electrode contacts during behavior delivers ground-truth data. The results have implications for electrode interface design and new generations of implantable biomedical devices. I will then turn to optical neural interfaces. Two-photon fluorescence microscopy images the activity of neurons expressing genetically-encoded calcium indicators and is most often performed in small animal models, such as the mouse, worm and fly. I will present a cellular-resolution robotic imaging platform to investigate the non-human primate brain at scale. I will finish by discussing potential applications of this technology to a range of scientific and clinical goals.

Bijan Pesaran Bio: Bijan Pesaran is interested in understanding large-scale circuits in the primate brain and how to engineer novel brain-based therapies. Bijan completed his undergraduate degree in Physics at the University of Cambridge, UK. After a year in the Theoretical Physics department at Bell Labs Murray Hill, he went on to earn his PhD in Physics at the California Institute of Technology. He then made the switch to neuroscience as a postdoctoral fellow in Biology at Caltech. Bijan has been on the faculty at New York University since 2006. He is currently a Professor of Neural Science in the Center for Neural Science. In 2013, he was a CV Starr Visiting Scholar at the Princeton Neuroscience Institute at Princeton University. Among other honors and awards, Bijan has received a Burroughs-Wellcome Career Award in the Biomedical Sciences, a Sloan Research Fellowship, a McKnight Scholar Award, the National Science Foundation CAREER Award and is a member of the Simons Collaboration for the Global Brain.

BE Seminar: “Tissue-Inspired Synthetic Biomaterials” (Shelly Peyton)

Shelly R. Peyton, Ph.D.

Speaker: Shelly R. Peyton, Ph.D.
Professor, Armstrong Professional Development Professor
Chemical Engineering, Biomedical Engineering Adjunct
College of Engineering
University of Massachusetts Amherst

Date: Thursday, December 9, 2021
Time: 3:30-4:30 PM EST
Zoom – check email for link
This seminar will be held virtually, but students registered for BE 699 can gather to watch in Moore 216.

Abstract: Improved experimental model systems are critically needed to better understand cancer progression and bridge the gap between lab bench proof-of-concept studies, validation in animal models, and eventual clinical application. Many methods exist to create biomaterials, including hydrogels, which we use to study cells in contexts more akin to what they experience in the human body. Our lab has multiple approaches to create such biomaterials, based on combinations of poly(ethylene glycol) (PEG) with peptides and zwitterions. In this presentation, I will discuss our synthetic approaches to building life-like materials, how we use these systems to grow cells and understand how a cell’s environment, particularly the extracellular matrix regulates cancer cell growth, dormancy, and drug sensitivity.

Shelly Peyton Bio: Shelly Peyton is the Armstrong Professor and Graduate Program Director, and chair of the Diversity, Equity, and Inclusion (DEI) committee of Chemical Engineering at the University of Massachusetts Amherst. She is co-director of the Models 2 Medicine Center in the Institute for Applied Life Sciences. She received her B.S. in Chemical Engineering from Northwestern University in 2002 and went on to obtain her MS and PhD in Chemical Engineering from the University of California, Irvine. She was then an NIH Kirschstein post-doctoral fellow in the Biological Engineering department at MIT before starting her academic appointment at UMass in 2011. Shelly leads an interdisciplinary group of engineers and molecular cell biologists seeking to create and apply novel biomaterials platforms toward new solutions to grand challenges in human health. Her lab’s unique approach is using our engineering expertise to build simplified models of human tissue with synthetic biomaterials. They use these systems to understand 1) the physical relationship between metastatic breast cancer cells and the tissues to which they spread, 2) the role of matrix remodeling in drug resistance, and 3) how to create bioinspired mechanically dynamic and activatable biomaterials. Among other honors for her work, Shelly was a 2013 Pew Biomedical Scholar, received a New Innovator Award from the NIH, and she was awarded a CAREER grant from the NSF. Shelly is co-PI with Jeanne Hardy on the Biotechnology (BTP) NIH T32 program and is a co-PI of the PREP program at UMass, which brings students from URM groups to UMass for a 1-year post-BS study to help prepare them for graduate school.

BE Seminar: “Ionic Liquid-based Therapeutics” (Samir Mitragotri)

Samir Mitragotri, Ph.D.

Speaker: Samir Mitragotri, Ph.D.
Hiller Professor of Bioengineering and Hansjorg Wyss Professor of Biologically Inspired Engineering
John A. Paulson School of Engineering and Applied Sciences
Harvard University

Date: Thursday, November 18, 2021
Time: 3:30-4:30 PM EST
Zoom – check email for link or contact ksas@seas.upenn.edu
This seminar will be held virtually, but students registered for BE 699 can gather to watch in Moore 216.

Abstract: Ionic liquids, the liquid salts comprising organic anions and cations, offer exciting opportunities for several therapeutic applications. Their tunable properties offer control over their design and function. Starting with biocompatible ions, we synthesized a library of ionic liquids and explored them for various drug delivery applications. Ionic liquids provided unique advantages including overcoming the biological transport barriers of skin, buccal mucosa and the intestinal epithelium. At the same time, they also stabilized proteins and nucleic acids and enabled the delivery of biologics across these barriers. Ionic liquids also provided unique biological functions including adjuvancy towards vaccines and antimicrobial function. I will present an overview of the design features of ionic liquids and novel biomedical applications enabled by these unique materials.

Samir Mitragotri Bio: Samir Mitragotri is the Hiller Professor of Bioengineering and Wyss Professor of Biologically Inspired Engineering at Harvard University. His research is focused on transdermal, oral, and targeted drug delivery systems. He is an elected member of the National Academy of Engineering, National Academy of Medicine and National Academy of Inventors. He is also a foreign member of Indian National Academy of Engineering. He is also an elected fellow of AAAS, CRS, BMES, AIMBE, and AAPS. He is an author of over 350 publications, an inventor on over 200 patent/patent applications, and a Clarivate Highly Cited Researcher. He received his BS in Chemical Engineering from the Institute of Chemical Technology, India and a PhD in Chemical Engineering from the Massachusetts Institute of Technology. He is the Editor-in-Chief of AIChE’s and SBE’s journal Bioengineering and Translational Medicine.

BE Seminar: “Phage and Robotics-Assisted Biomolecular Evolution” (Emma Chory)

Emma Chory, Ph.D.

Speaker: Emma Chory, Ph.D.
Postdoctoral Fellow
Sculpting Evolution Laboratory
Massachusetts Institute of Technology

Date: Thursday, October 21, 2021
Time: 3:30-4:30 PM EDT
Zoom – check email for link or contact ksas@seas.upenn.edu
Room: Moore 216

Abstract: Evolution occurs when selective pressures from the environment shape inherited variation over time. Within the laboratory, evolution is commonly used to engineer proteins and RNA, but experimental constraints have limited our ability to reproducibly and reliably explore key factors such as population diversity, the timing of environmental changes, and chance. We developed a high-throughput system for the analytical exploration of molecular evolution using phage-based mutagenesis to evolve many distinct classes of biomolecules simultaneously. In this talk, I will describe the development of our open-source python:robot integration platform which enables us to adjust the stringency of selection in response to real-time evolving activity measurements and to dissect the historical, environmental, and random factors governing biomolecular evolution. Finally, I will talk about our many on-going projects which utilize this system to evolve previously intractable biomolecules using novel small-molecule substrates to target the undruggable proteome.

Emma Chory Bio: Emma Chory is a postdoctoral fellow in the Sculpting Evolution Group at MIT, advised by Kevin Esvelt and Jim Collins. Emma’s research utilizes directed evolution, robotics, and chemical biology to evolve biosynthetic pathways for the synthesis of novel peptide-based therapeutics. Emma obtained her PhD in Chemical Engineering in the laboratory of Gerald Crabtree at Stanford University. She is the recipient of the NSF Graduate Research Fellowship and a pre- and postdoctoral NIH NRSA Fellowship.

BE Seminar: “Material Design for Lymph Node Drug Delivery and Immunomodulation” (Susan Thomas)

Susan Thomas, Ph.D.

Speaker: Susan N. Thomas, Ph.D.
Woodruff Associate Professor of Mechanical Engineering
Parker H. Petit Institute of Bioengineering and Bioscience
Georgia Institute of Technology

Date: Thursday, September 23, 2021
Time: 3:30-4:30 PM EDT
Zoom – check email for link or contact ksas@seas.upenn.edu
This virtual seminar will be held over Zoom. Students registered for BE 699 can gather to watch live in Moore 216, 200 S. 33rd Street.

Abstract: Lymph nodes mediate the co-mingling of cells of the adaptive system to coordinate adaptive immune response. Drug delivery principles and technologies our group has developed to leverage the potential of lymph nodes as immunotherapeutic drug targets to augment anti-cancer therapeutic effects will be described.

Susan Thomas Bio: Susan Napier Thomas is a Woodruff Associate Professor with tenure of Mechanical Engineering in the Parker H. Petit Institute of Bioengineering and Bioscience at the Georgia Institute of Technology where she holds adjunct appointments in Biomedical Engineering and Biological Science and is a member of the Winship Cancer Institute of Emory University. Prior to this appointment, she was a Whitaker postdoctoral scholar at École Polytechnique Fédérale de Lausanne and received her B.S. in Chemical Engineering cum laude from the University of California Los Angeles and her Ph.D. as in Chemical & Biomolecular Engineering as an NSF Graduate Research Fellow from The Johns Hopkins University. For her contributions to the emerging field of immunoengineering, she has been honored with the 2018 Young Investigator Award from the Society for Biomaterials for “outstanding achievements in the field of biomaterials research” and the 2013 Rita Schaffer Young Investigator Award from the Biomedical Engineering Society “in recognition of high level of originality and ingenuity in a scientific work in biomedical engineering.” Her interdisciplinary research program is supported by multiple awards from the National Cancer Institute, the Department of Defense, the National Science Foundation, and the Susan G. Komen Foundation, amongst others.

BE Seminar: “Regenerative Engineering: Enabling Regenerative Medicine” (Guillermo Ameer)

Guillermo Ameer, D.Sc.

Speaker: Guillermo Ameer, D.Sc.
Daniel Hale Williams Professor of Biomedical Engineering & Surgery
McCormick School of Engineering
Northwestern University

Date: Thursday, September 16, 2021
Time: 3:30-4:30 PM EDT
Zoom – check email for link or contact ksas@seas.upenn.edu
Location: Moore Room 216, 200 S. 33rd Street

Abstract: Regenerative engineering is the convergence of advances in materials science, physical sciences, stem cell and developmental biology, and translational medicine to develop tools that enable the regeneration and reconstruction of tissue and organ function. I will describe how materials can be engineered to play a critical role in treating tissue and organ defects and dysfunction by promoting cellular processes that are conducive to regeneration. Applications of these materials to address the complications of diabetes and orthopaedic injuries will be discussed.

Guillermo Ameer Bio: Dr. Ameer is the Daniel Hale Williams professor of Biomedical Engineering and Surgery in the Biomedical Engineering Department at the McCormick School of Engineering and the Department of Surgery at the Feinberg School of Medicine, Northwestern University. He is the founding director of the Center for Advanced Regenerative Engineering (CARE) and the Director of the NIH-funded Regenerative Engineering Training Program (RE-Training). He received his bachelor’s degree in chemical engineering from The University of Texas at Austin and his doctoral degree in chemical and biomedical engineering from the Massachusetts Institute of Technology. His research interests include regenerative engineering, biomaterials, additive manufacturing for biomedical devices, controlled drug delivery and bio/nanotechnology for therapeutics and diagnostics.

Dr. Ameer’s laboratory pioneered the development and tissue regeneration applications of citrate-based biomaterials (CBB), the core technology behind the innovative bioresorbable orthopaedic tissue fixation devices CITREFIXTM, CITRESPLINETM, and CITRELOCKTM, which were recently cleared by the F.D.A for clinical use and marketed worldwide. CBBs are the first thermoset synthetic polymers used for implantable biodegradable medical devices. The co-founder of several companies, Dr. Ameer has approximately 300 publications and conference abstracts and over 55 patents issued and pending in 9 countries.

His awards include the National Science Foundation CAREER Award, the American Heart Association’s Established Investigator Award, the American Institute of Chemical Engineers (AIChE) Eminent Chemical Engineer Award, the Key to the City of Panama, induction into the Academy of Distinguished Chemical Engineers (U. Texas Mcketta Dept. of Chemical Engineering), and the Society for Biomaterials Clemson Award for Contributions to the Literature. Dr. Ameer is a Fellow of the American Institute of Medical and Biological Engineering (AIMBE), Fellow of the Biomedical Engineering Society (BMES), a Fellow of the AIChE, Fellow of the American Association for the Advancement of Science (AAAS), Fellow of the Materials Research Society, and a Fellow of the National Academy of Inventors. Dr. Ameer is an Associate Editor for the AAAS journal Science Advances and the Regenerative Engineering and Translational Medicine journal; a member of the board of directors of the Regenerative Engineering Society; past board member of BMES and AIMBE; Chair of the AIMBE Awards Committee; Chair-elect of the College of Fellows of AIMBE; and a member of the Scientific Advisory Board of Acuitive Technologies, Inc.- a company that is bringing his biomaterial technologies to the musculoskeletal surgery market.

BE Seminar: “Dynamics of 3D Cell Migration and Organ Formation” (Kenneth Yamada)

Our next Penn Bioengineering seminar will be held on zoom next Thursday.

Kenneth Yamada, MD, PhD

Speaker: Kenneth Yamada, M.D., Ph.D.
NIH Distinguished Investigator
Cell Biology Section
National Institute of Dental and Craniofacial Research, National Institutes of Health (NIH)

Date: Thursday, September 9, 2021
Time: 3:30-4:30 PM EDT
Zoom – check email for link or contact ksas@seas.upenn.edu
Location: Moore Room 216, 200 S. 33rd Street

Abstract: Real-time microscopy of the dynamics of cells and tissues in 3D environments is opening new windows to understanding the biophysical mechanisms of complex biological processes. Direct visualization is allowing us to explore fundamental questions in more depth that include: How do cells migrate in 3D? How do cancer cells invade? How is the extracellular matrix assembled? How are organs formed? Visualizing how cells move and organize into tissues is not only providing descriptive insights, but is also leading to the identification of novel, unexpected physical and mechanical mechanisms relevant to tissue engineering. Cells can use varying combinations of cell adhesion to adjacent cells and to the surrounding extracellular matrix with localized cellular contractility to migrate, invade, and produce the complex tissue architecture needed for organ formation.

Kenneth Yamada Bio: Kenneth Yamada has been an NIH Distinguished Investigator since 2011. He received MD and PhD degrees from Stanford. He was a Section Chief at the National Cancer Institute for 10 years and has been a Section Chief at NIDCR since 1990. He is an elected Fellow of the AAAS and American Society for Cell Biology. His research focuses on discovering novel mechanisms and regulators of cell interactions with the extracellular matrix and their roles in embryonic development and cancer. His research group focuses on the mechanisms by which three-dimensional (3D) extracellular matrix mediates key biological events, including cell migration, tissue morphogenesis, and cancer cell invasion. His research places particular emphasis on characterizing the dynamic movements of cells and their extracellular matrix as tissues are remodeled in 3D in real time. The biological systems they study include human primary cells migrating in 3D, human tumor cells and tissues, and mouse organ development. He places particularly high priority on developing future independent research leaders.

BE Seminar: “Synthetic Biochemistry: Engineering Molecules and Pathways for Precision Medicine” (Michael Lin)

Save the date for the first Penn Bioengineering seminar of the fall 2021 semester! This year’s seminars will be hybrids, held virtually on zoom and live on campus!

Michael Lin, Ph.D.

Speaker: Michael Lin, Ph.D.
Associate Professor
Neurobiology, Bioengineering, and by courtesy Chemical and Systems Biology
Stanford Medicine, Stanford University

Date: Thursday, September 2, 2021
Time: 3:30-4:30 PM EDT
Zoom – check email for link or contact ksas@seas.upenn.edu
Location: Moore Room 216, 200 S. 33rd Street

Abstract: The most effective medicines are those that target the earliest causes of disease, rather than later manifestations. Engineering of biomolecules is a promising but underexplored approach to precisely detecting or targeting disease causes. I will present our work to develop a novel approach to treating cancer by detecting the signaling abnormalities that give rise to cancer. Interestingly, this effort involves biomolecular engineering at multiple scales: proteins, pathways, and viruses. I will also discuss how our work has translated serenditously to developing treatments for SARSCoV2.

Michael Lin Bio: Michael Z. Lin received an A.B. summa cum laude in Biochemistry from Harvard, an M.D. from UCLA, and a Ph.D. from Harvard Medical School. After training in biochemistry and neurobiology as a PhD student with Michael Greenberg at Harvard Medical School, Dr. Lin performed postdoctoral research in fluorescent protein engineering with Chemistry Nobel Laureate Roger Y. Tsien at UCSD. Dr. Lin is a recipient of a Burroughs Wellcome Career Award for Medical Scientists, a Rita Allen Scholar Award, a Damon Runyon-Rachleff Innovation Award, and a NIH Pioneer Award.

BE Seminar: “Promoting Appendage/Limb Regeneration in Jellyfish, Drosophila, and Mouse” (Lea Goentoro)

We hope you will join us for our final seminar of the spring semester!

Speaker: Lea Goentoro, Ph.D.
California Institute of Technology

Date: Thursday, April 22, 2021
Time: 3:00-4:00 PM EDT
Zoom – check email for link or contact ksas@seas.upenn.edu

Abstract: Can limb regeneration be induced? In this talk, I will discuss our work to promote regeneration in animals with limited regeneration capacity. I will present our recent discovery of a strategy for inducing regenerative response in appendages, which works across three species that span the animal phylogeny. In Cnidaria, the frequency of appendage regeneration in the moon jellyfish Aurelia was increased by feeding with the amino acid L-leucine and the growth hormone insulin. In insects, the same strategy induced tibia regeneration in adult Drosophila. Finally, in mammals, L-leucine and sucrose administration induced digit regeneration in adult mice, including dramatically from mid-phalangeal amputation. The conserved effect of L-leucine and insulin/sugar suggests a key role for energetic parameters in regeneration induction. The simplicity by which nutrient supplementation can induce appendage regeneration provides a testable hypothesis across animals.

Lea Goentoro Bio: Lea Goentoro is a Professor of Biology in the Division of Biology and Biological Engineering at the California Institute of Technology. She holds a B.S. in Chemical Engineering from University of Wisconsin, Madison and a Ph.D. in Chemical Engineering from Princeton University. Prior to joining Caltech, she did postdoctoral training in the Department of Systems Biology at Harvard Medical School. Her work has been supported by the Damon-Runyon Cancer Foundation, the James S. McDonnell Foundation, the National Science Foundation, and the National Institute of Health.