Author

Karla J. Palmeri

Stanford Medicine

Listed by name: these papers carry no ORCID for this author, so different people with the same name may be mixed together.

Biology Disciplines

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Developmental Biology· 3 Cell Biology· 2 Neuroscience· 2 Evolutionary Biology· 1 Immunology· 1

Signature Assays, Organisms & Methods

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Organism:non-human primate· 9 Research Focus:cell type annotation· 6 Approach:experimental assay· 6 Assay:bulk RNA-seq· 5 Research Focus:differential expression· 5 Approach:statistical model· 4 Assay:scRNA-seq· 2 Research Focus:cell signaling & trafficking· 1

Frequent Co-Authors

Ayelet VoskoboynikiD· 9 shared Irving L. WeissmaniD· 9 shared Katherine J. Ishizuka· 9 shared Chiara AnselmiiD· 7 shared Norma F NeffiD· 7 shared Stephen R. QuakeiD· 5 shared Tom LevyiD· 5 shared Benyamin RosentaliD· 4 shared

Activity by Year

2017-2026 · peak 3/yr

Co-Author Collaboration Network

10 top collaborators · 45 mutual co-author links

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9 shared papersDevelopmental Biology

Ayelet VoskoboynikORCID

Mutual co-authors in cluster

Author profile →

9 papers

Recent·Most cited

Anatomical and functional organisation of the cholinergic nervous system in the tunicate Botryllus schlosseri

Chiara Anselmi, Leyla Yılmaz, Tom Levy, Katherine J. Ishizuka, Karla J. Palmeri, Irving L. Weissman, Ayelet Voskoboynik, Stuart H. Thompson

This study maps the anatomical and functional organization of the cholinergic system in Botryllus schlosseri, revealing a dual-effector system coordinating muscular and ciliary networks.

bioRxiv · Sep 16, 2026 · PreprintNeuroscience

Lifelong Invertebrate Chordate Central Nervous System Regeneration is Driven by a Migrating Pool of Conserved Neural Stem Cells Program

Chiara Anselmi, Tom Levy, Jiamu Chester Yu, Katherine J. Ishizuka, Karla J. Palmeri, Daniel Dan Liu, Rahul Sinha, Yotam Voskoboynik, Clelia Corridori, Norma F Neff, Angela M. Detweiler, Irving L. Weissman, Graziano Martello, Ayelet Voskoboynik

This study identifies a conserved neural stem cell pool driving continuous CNS regeneration in Botryllus schlosseri, showing aging disrupts this process.

bioRxiv · Sep 13, 2026 · PreprintCell Biology

Survival Benefits Outweigh Germline Competition Costs in Kin Chimeras

Ronnie Voskoboynik, Cara Askren, Noah G Gordon, Deepak Krishnamurthy, Adam G. Larson, Chester J Yu, Mark Kowarsky, Tom Levy, Katherine J. Ishizuka, Karla J. Palmeri, Thomas Rolander, Norma F Neff, Angela M Detwellier, Stephen R. Quake, Manu Prakash, , Ayelet Voskoboynik

The study quantifies survival benefits and germline competition costs of chimerism in Botryllus schlosseri, finding survival advantages outweigh competition costs.

bioRxiv · Apr 23, 2026 · PreprintEvolutionary Biology

Germline stem cell isolation, lineage tracing, and aging in a protochordate

Tom Levy, Chiara Anselmi, Katherine J. Ishizuka, Tal Gordon, Yotam Voskoboynik, Aaron McGeever, Angela M. Detweiler, Liron Levin, Karla J. Palmeri, Daniel Dan Liu, Rahul Sinha, Benjamin F Ohene-Gambill, Tal Bachar Raveh, Maurizio Morri, Virginia Vanni, , Ayelet Voskoboynik

This study investigates age-related changes in germline stem cells (GSCs) in the protochordate Botryllus schlosseri using single-cell RNA sequencing and transplantation assays, revealing that GSCs, not gametes, drive reproductive aging.

bioRxiv · Aug 31, 2025 · PreprintCell Biology

Electrical Stimulation Rejuvenates Tunicates: Altered Stem Cell and Immune Activity

Jos Domen, Yotam Voskoboynik, Tom Levy, Erica M. Domen, Katherine J. Ishizuka, Karla J. Palmeri, Chiara Anselmi, Thomas Rolander, Norma F Neff, Angela M. Detweiler, Irving L. Weissman, Kimberly Lynn Gandy, Debashis Sahoo, Ayelet Voskoboynik

The paper shows that pulsatile electrical current improves survival, regeneration, and reproduction in Botryllus schlosseri by altering stem cell and immune activity through transcriptomic changes.

bioRxiv · May 17, 2025 · PreprintDevelopmental Biology

Revealing conserved mechanisms of neurodegeneration in a colonial chordate

Chiara Anselmi, MA Kowarsky, Fabio Gasparini, Federico Caicci, Katherine J. Ishizuka, Karla J. Palmeri, R Sinhar, Norma F Neff, Stephen R. Quake, Irving L. Weissman, Ayelet Voskoboynik, Lucia Manni

The paper studies neurodegeneration in the colonial chordate Botryllus schlosseri, finding conserved mechanisms between tunicates and humans.

bioRxiv · May 27, 2021 · PreprintNeuroscience

Global Age-Specific Patterns of Cyclic Gene Expression Revealed by Tunicate Transcriptome Atlas

Yotam Voskoboynik, Aidan Glina, Mark Kowarsky, Chiara Anselmi, Norma F Neff, Katherine J. Ishizuka, Karla J. Palmeri, Benyamin Rosental, Tal Gordon, Stephen R. Quake, Irving L. Weissman, Rachel Ben‐Shlomo, Debashis Sahoo, Ayelet Voskoboynik

The paper identifies age-specific circadian gene expression patterns in Botryllus schlosseri and links them to aging phenotypes and pathways.

bioRxiv · Dec 8, 2020 · PreprintDevelopmental Biology

Molecular and Morphological Signatures of Chordate Development: Two Distinct Pathways, One Tunicate

Mark Kowarsky, Chiara Anselmi, Kohji Hotta, Paolo Burighel, Giovanna Zaniolo, Federico Caicci, Benyamin Rosental, Norma F Neff, Katherine J. Ishizuka, Karla J. Palmeri, Jennifer Okamoto, Tal Gordon, Irving L. Weissman, Stephen R. Quake, Lucia Manni, Ayelet Voskoboynik

This study compares molecular and morphological signatures in two developmental pathways of tunicates, finding distinct molecular programs but shared stem cell profiles.

bioRxiv · Oct 14, 2019 · PreprintDevelopmental Biology

Evolutionary Origin of the Mammalian Hematopoietic System Found in a Colonial Chordate

Benyamin Rosental, Mark Kowarsky, Jun Seita, Daniel M. Corey, Katherine J. Ishizuka, Karla J. Palmeri, Shih-Yu Chen, Rahul Sinha, Jennifer Okamoto, Gary Mantalas, Lucia Manni, Tal Raveh, D. Nathaniel Clarke, Aaron M. Newman, Norma F. Neff, , Ayelet Voskoboynik

The paper identifies hematopoietic stem cells and related lineages in Botryllus schlosseri, suggesting their evolutionary origin in a common ancestor of tunicates and vertebrates.

bioRxiv · Dec 26, 2017 · PreprintImmunology