Sébastien Wälchli
- Senior Scientist; PhD
- +47 22 78 13 16
Group leader
Education:
2016 |
Present |
Senior scientist (group leader-OUS leader training 2019) |
Section for Cellular Therapy, Radiumhospitalet, Oslo |
2013 |
2016 |
Senior scientist (project leader) |
Sections for Cancer Immunology and Cellular Therapy, Radiumhospitalet, Oslo |
2007 |
2013 |
Scientist |
Dept of Immunology, IKF, Radiumhospitalet, Oslo |
2003 |
2007 |
Postdoc |
Dept of Biochemistry, IKF, Radiumhospitalet, Oslo |
2002 |
2003 |
Visiting scientist |
Medical school of Geneva, Geneva, Switzerland |
1998 |
2002 |
PhD student |
Serono Pharmaceutical Research Institute (Hooft), Geneva, Switzerland |
Research interests/projects:
SW co-leads the translational research lab at the section for Cellular therapy, OUS, a newly established pre-clinical entity directly connected to the immunomonitoring unit. SW leads the molecular biology of the T-cell receptor (TCR) and the Chimeric Antigen Receptor (CAR) development platforms. The TCR platform has led to the filling of numerous patents, the establishment of a biotech (Zelluna Immuntherapy AS, 2016) and the first TCR tested in human in Norway (ClinicalTrials.gov Identifier: NCT03431311). The CAR platform has completed the pre-clinical development of 2 candidates and is working on around 15 new constructs, most of them directed against solid tumours. Advanced universal therapeutic solutions are also in our pipeline (3 patents), and different innovative tools in the immunotherapeutic field (vaccination, effector cell improvement, etc.). More info here: www.linkedin.com/in/sebastw |
Awards
- OvaCure Award at the OvaCure Innovation Challenge 2020
- Inven2 Innovation award 2014: "A universal killer-T cell for personalized medicine"
- Top poster Award at CIMT (Association of Cancer Immunotherapy) in Mainz (Germany) 2012: "It takes two to tango: MHC-I and Invariant chain in harmony"
- Inven2 Innovation award 2011: "A novel method to produce soluble TcR"
Publications 2021
Pharmacologic Control of CAR T Cells
Int. J. Mol. Sci., 22 (9), 4320
DOI 10.3390/ijms22094320
Targeting KRAS mutations with HLA class II-restricted TCRs for the treatment of solid tumors
OncoImmunology, 10 (1), 1936757
DOI 10.1080/2162402X.2021.1936757
Targeting Telomerase with an HLA Class II-Restricted TCR for Cancer Immunotherapy
Mol. Ther., 29 (3), 1199-1213
DOI 10.1016/j.ymthe.2020.11.019
Id2 Represses Aldosterone-Stimulated Cardiac T-Type Calcium Channels Expression
Int. J. Mol. Sci., 22 (7), 3561
DOI 10.3390/ijms22073561
Combinatorial CAR design improves target restriction
J. Biol. Chem., 296, 100116
DOI 10.1074/jbc.RA120.016234
"Built-in" PD-1 blocker to rescue NK-92 activity from PD-L1-mediated tumor escape mechanisms
Faseb J., 35 (9), e21750
DOI 10.1096/fj.202100025R
Rab7b regulates dendritic cell migration by linking lysosomes to the actomyosin cytoskeleton
J. Cell Sci., 134 (18), jcs259221
DOI 10.1242/jcs.259221
Publications 2020
SJI 2020 special issue: A catalogue of Ovarian Cancer targets for CAR therapy
Scand. J. Immunol., 92 (4), e12917
DOI 10.1111/sji.12917
Colorectal cysts as a validating tool for CAR therapy
BMC Biotechnol., 20 (1), 30
DOI 10.1186/s12896-020-00623-0
Sympathetic improvement of cancer vaccine efficacy
Human Vaccines Immunother., 16 (8), 1888-1890
DOI 10.1080/21645515.2019.1703456
Long-term surviving cancer patients as a source of therapeutic TCR
Cancer Immunol. Immunother., 69 (5), 859-865
DOI 10.1007/s00262-019-02468-9
Preclinical assessment of transiently TCR redirected T cells for solid tumour immunotherapy (vol 68, pg 1235, 2019)
Cancer Immunol. Immunother., 69 (1), 159-161
DOI 10.1007/s00262-019-02409-6
T cell receptor therapy against melanoma-Immunotherapy for the future?
Scand. J. Immunol., 92 (4), e12927
DOI 10.1111/sji.12927
Publications 2019
TIGIT and PD-1 Mark Intratumoral T Cells with Reduced Effector Function in B-cell Non-Hodgkin Lymphoma
Cancer Immunol. Res., 7 (3), 355-362
DOI 10.1158/2326-6066.CIR-18-0351
Preclinical development of CD37CAR T-cell therapy for treatment of B-cell lymphoma
Blood Adv., 3 (8), 1230-1243
DOI 10.1182/bloodadvances.2018029678
Treating osteosarcoma with CAR T cells
Scand. J. Immunol., 89 (3), e12741
DOI 10.1111/sji.12741
NK cells specifically TCR-dressed to kill cancer cells
EBioMedicine, 40, 106-117
DOI 10.1016/j.ebiom.2019.01.031
Antigen-delivery through invariant chain (CD74) boosts CD8 and CD4 T cell immunity
OncoImmunology, 8 (3), e1558663
DOI 10.1080/2162402X.2018.1558663
Preclinical assessment of transiently TCR redirected T cells for solid tumour immunotherapy
Cancer Immunol. Immunother., 68 (8), 1235-1243
DOI 10.1007/s00262-019-02356-2
Simultaneous defeat of MCF7 and MDA-MB-231 resistances by a hypericin PDT-tamoxifen hybrid therapy
npj Breast Cancer, 5, 13
DOI 10.1038/s41523-019-0108-8
Publications 2018
A Spheroid Killing Assay by CAR T Cells
J. Vis. Exp. (142), e58785
DOI 10.3791/58785
Artesunate shows potent anti-tumor activity in B-cell lymphoma
J. Hematol. Oncol., 11, 23
DOI 10.1186/s13045-018-0561-0
Publications 2017
BMP-7 induces apoptosis in human germinal center B cells and is influenced by TGF-beta receptor type I ALK5
PLoS One, 12 (5), e0177188
DOI 10.1371/journal.pone.0177188
Fishing therapeutic T-cell receptors in healthy donor blood, is safety predictable?
Transl. Cancer Res., 6 3, S622-S624
DOI 10.21037/tcr.2017.05.25
Distinct patterns of B-cell receptor signaling in non-Hodgkin lymphomas identified by single-cell profiling
Blood, 129 (6), 759-770
DOI 10.1182/blood-2016-05-718494
A TCR-based Chimeric Antigen Receptor
Sci Rep, 7, 10713
DOI 10.1038/s41598-017-11126-y
Publications 2016
Enhancing Antitumor Immune Responses by Optimized Combinations of Cell-penetrating Peptide-based Vaccines and Adjuvants
Mol. Ther., 24 (9), 1675-1685
DOI 10.1038/mt.2016.134
T-helper cell receptors from long-term survivors after telomerase cancer vaccination for use in adoptive cell therapy
OncoImmunology, 5 (12), e1249090
DOI 10.1080/2162402X.2016.1249090
Targeting B-cell neoplasia with T-cell receptors recognizing a CD20-derived peptide on patient-specific HLA
OncoImmunology, 5 (5), e1138199
DOI 10.1080/2162402X.2016.1138199
Deciphering the Nongenomic, Mitochondrial Toxicity of Tamoxifens As Determined by Cell Metabolism and Redox Activity
ACS Chem. Biol., 11 (1), 251-262
DOI 10.1021/acschembio.5b00734
Publications 2015
Unpredicted phenotypes of two mutants of the TcR DMF5
J. Immunol. Methods, 425, 37-44
DOI 10.1016/j.jim.2015.06.006
Soluble T-Cell Receptors Produced in Human Cells for Targeted Delivery
PLoS One, 10 (4), e0119559
DOI 10.1371/journal.pone.0119559
Publications 2014
Alloreactive cytotoxic T cells provide means to decipher the immunopeptidome and reveal a plethora of tumor-associated self-epitopes
Proc. Natl. Acad. Sci. U. S. A., 111 (1), 403-408
DOI 10.1073/pnas.1306549111
Invariant chain as a vehicle to load antigenic peptides on human MHC class I for cytotoxic T-cell activation
Eur. J. Immunol., 44 (3), 774-784
DOI 10.1002/eji.201343671
Publications 2013
BiP Negatively Affects Ricin Transport
Toxins, 5 (5), 969-982
DOI 10.3390/toxins5050969
Publications 2012
T cells raised against allogeneic HLA-A2/CD20 kill primary follicular lymphoma and acute lymphoblastic leukemia cells
Int. J. Cancer, 130 (8), 1821-1832
DOI 10.1002/ijc.26209
Role of Smad Proteins in Resistance to BMP-Induced Growth Inhibition in B-Cell Lymphoma
PLoS One, 7 (10), e46117
DOI 10.1371/journal.pone.0046117
Publications 2011
Transiently redirected T cells for adoptive transfer
Cytotherapy, 13 (5), 629-640
DOI 10.3109/14653249.2010.542461
Publications 2010
Targeting B cell leukemia with highly specific allogeneic T cells with a public recognition motif
Leukemia, 24 (11), 1901-1909
DOI 10.1038/leu.2010.186
Splice variants of Enigma homolog, differentially expressed during heart development, promote or prevent hypertrophy
Cardiovasc. Res., 86 (3), 374-382
DOI 10.1093/cvr/cvq023
Publications 2009
beta-catenin is involved in N-cadherin-dependent adhesion, but not in canonical Wnt signaling in E2A-PBX1-positive B acute lymphoblastic leukemia cells
Exp. Hematol., 37 (2), 225-233
DOI 10.1016/j.exphem.2008.10.007
Glycosphingolipid Requirements for Endosome-to-Golgi Transport of Shiga Toxin
Traffic, 10 (7), 868-882
DOI 10.1111/j.1600-0854.2009.00919.x
SNX4 in Complex with Clathrin and Dynein: Implications for Endosome Movement
PLoS One, 4 (6), e5935
DOI 10.1371/journal.pone.0005935
beta-arrestins attenuate p38-mediated endosome to Golgi transport
Cell Microbiol., 11 (5), 796-807
DOI 10.1111/j.1462-5822.2009.01292.x
Dendritic Cells Engineered to Express Defined Allo-HLA Peptide Complexes Induce Antigen-specific Cytotoxic T Cells Efficiently Killing Tumour Cells
Scand. J. Immunol., 69 (4), 319-328
DOI 10.1111/j.1365-3083.2008.02223.x
Characterization of clathrin and Syk interaction upon Shiga toxin binding
Cell. Signal., 21 (7), 1161-1168
DOI 10.1016/j.cellsig.2009.03.005
Publications 2008
Phosphorylation of fibroblast growth factor (FGF) receptor 1 at Ser777 by p38 mitogen-activated protein kinase regulates translocation of exogenous FGF1 to the cytosol and nucleus
Mol. Cell. Biol., 28 (12), 4129-4141
DOI 10.1128/MCB.02117-07
Vector-based delivery of siRNAs: In vitro and in vivo challenges
Front. Biosci., 13, 3488-3493
The mitogen-activated protein kinase p38 links Shiga toxin-dependent signaling and trafficking
Mol. Biol. Cell, 19 (1), 95-104
DOI 10.1091/mbc.E07-06-0565
Publications 2007
Phosphoinositide-regulated retrograde transport of ricin: Crosstalk between hVps34 and sorting nexins
Traffic, 8 (3), 297-309
DOI 10.1111/j.1600-0854.2006.00527.x
Protein kinase C delta is activated by Shiga toxin and regulates its transport
J. Biol. Chem., 282 (22), 16317-16328
DOI 10.1074/jbc.M610886200
Publications 2006
The ESCRT-III subunit hVps24 is required for degradation but not silencing of the epidermal growth factor receptor
Mol. Biol. Cell, 17 (6), 2513-2523
DOI 10.1091/mbc.E05-10-0915
Shiga toxin regulates its entry in a syk-dependent manner
Mol. Biol. Cell, 17 (3), 1096-1109
DOI 10.1091/mbc.E05-08-0766
EDEM is involved in retrotranslocation of ricin from the endoplasmic reticulum to the cytosol
Mol. Biol. Cell, 17 (4), 1664-1675
DOI 10.1091/mbc.E05-10-0961
Transport of ricin from endosomes to the Golgi apparatus is regulated by Rab6A and Rab6A '
Traffic, 7 (6), 663-672
DOI 10.1111/j.1600-0854.2006.00418.x
Publications 2005
Golgi vesiculation induced by cholesterol occurs by a dynamin- and cPLA(2)-dependent mechanism
Traffic, 6 (2), 144-156
DOI 10.1111/j.1600-0854.2005.00258.x
The disulfide isomerase Grp58 is a protective factor against prion neurotoxicity
J. Neurosci., 25 (11), 2793-2802
DOI 10.1523/JNEUROSCI.4090-04.2005
Reconstitution of active diphtheria toxin based on a hexahistidine tagged version of the B-fragment produced to high yields in bacteria
Toxicon, 46 (8), 900-906
DOI 10.1016/j.toxicon.2005.08.015