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Gupta S, Yano J, Mercier V, Htwe HH, Shin HR, Rademaker G, Cakir Z, Ituarte T, Wen KW, Kim GE, Zoncu R, Roux A, Dawson DW, Perera RM. Lysosomal retargeting of Myoferlin mitigates membrane stress to enable pancreatic cancer growth. Nat Cell Biol 2021; 23:232-242. [PMID: 33686253 PMCID: PMC9446896 DOI: 10.1038/s41556-021-00644-7] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 02/01/2021] [Indexed: 01/31/2023]
Abstract
Lysosomes must maintain the integrity of their limiting membrane to ensure efficient fusion with incoming organelles and degradation of substrates within their lumen. Pancreatic cancer cells upregulate lysosomal biogenesis to enhance nutrient recycling and stress resistance, but it is unknown whether dedicated programmes for maintaining the integrity of the lysosome membrane facilitate pancreatic cancer growth. Using proteomic-based organelle profiling, we identify the Ferlin family plasma membrane repair factor Myoferlin as selectively and highly enriched on the membrane of pancreatic cancer lysosomes. Mechanistically, lysosomal localization of Myoferlin is necessary and sufficient for the maintenance of lysosome health and provides an early acting protective system against membrane damage that is independent of the endosomal sorting complex required for transport (ESCRT)-mediated repair network. Myoferlin is upregulated in human pancreatic cancer, predicts poor survival and its ablation severely impairs lysosome function and tumour growth in vivo. Thus, retargeting of plasma membrane repair factors enhances the pro-oncogenic activities of the lysosome.
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Affiliation(s)
- Suprit Gupta
- Department of Anatomy, University of California, San Francisco, San Francisco, CA, USA
| | - Julian Yano
- Department of Anatomy, University of California, San Francisco, San Francisco, CA, USA
| | - Vincent Mercier
- Department of Biochemistry, University of Geneva, Geneva, Switzerland
| | - Htet Htwe Htwe
- Department of Anatomy, University of California, San Francisco, San Francisco, CA, USA
| | - Hijai R Shin
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA, USA
| | - Gilles Rademaker
- Department of Anatomy, University of California, San Francisco, San Francisco, CA, USA
| | - Zeynep Cakir
- Department of Anatomy, University of California, San Francisco, San Francisco, CA, USA
| | - Thomas Ituarte
- Department of Anatomy, University of California, San Francisco, San Francisco, CA, USA
| | - Kwun W Wen
- Department of Pathology, University of California, San Francisco, San Francisco, CA, USA
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, USA
| | - Grace E Kim
- Department of Pathology, University of California, San Francisco, San Francisco, CA, USA
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, USA
| | - Roberto Zoncu
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA, USA
| | - Aurélien Roux
- Department of Biochemistry, University of Geneva, Geneva, Switzerland
| | - David W Dawson
- Department of Pathology and Laboratory Medicine and Jonsson Comprehensive Cancer Center, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, CA, USA
| | - Rushika M Perera
- Department of Anatomy, University of California, San Francisco, San Francisco, CA, USA.
- Department of Pathology, University of California, San Francisco, San Francisco, CA, USA.
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, USA.
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Adams CR, Htwe HH, Marsh T, Wang AL, Montoya ML, Subbaraj L, Tward AD, Bardeesy N, Perera RM. Transcriptional control of subtype switching ensures adaptation and growth of pancreatic cancer. eLife 2019; 8:45313. [PMID: 31134896 PMCID: PMC6538376 DOI: 10.7554/elife.45313] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 05/02/2019] [Indexed: 12/17/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDA) is a heterogeneous disease comprised of a basal-like subtype with mesenchymal gene signatures, undifferentiated histopathology and worse prognosis compared to the classical subtype. Despite their prognostic and therapeutic value, the key drivers that establish and control subtype identity remain unknown. Here, we demonstrate that PDA subtypes are not permanently encoded, and identify the GLI2 transcription factor as a master regulator of subtype inter-conversion. GLI2 is elevated in basal-like PDA lines and patient specimens, and forced GLI2 activation is sufficient to convert classical PDA cells to basal-like. Mechanistically, GLI2 upregulates expression of the pro-tumorigenic secreted protein, Osteopontin (OPN), which is especially critical for metastatic growth in vivo and adaptation to oncogenic KRAS ablation. Accordingly, elevated GLI2 and OPN levels predict shortened overall survival of PDA patients. Thus, the GLI2-OPN circuit is a driver of PDA cell plasticity that establishes and maintains an aggressive variant of this disease.
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Affiliation(s)
- Christina R Adams
- Department of Anatomy, University of California, San Francisco, San Francisco, United States
| | - Htet Htwe Htwe
- Department of Anatomy, University of California, San Francisco, San Francisco, United States
| | - Timothy Marsh
- Department of Pathology, University of California, San Francisco, San Francisco, United States
| | - Aprilgate L Wang
- Department of Anatomy, University of California, San Francisco, San Francisco, United States
| | - Megan L Montoya
- Department of Anatomy, University of California, San Francisco, San Francisco, United States
| | - Lakshmipriya Subbaraj
- Department of Otolaryngology, University of California, San Francisco, San Francisco, United States
| | - Aaron D Tward
- Department of Otolaryngology, University of California, San Francisco, San Francisco, United States.,Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, United States
| | - Nabeel Bardeesy
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, United States
| | - Rushika M Perera
- Department of Anatomy, University of California, San Francisco, San Francisco, United States.,Department of Pathology, University of California, San Francisco, San Francisco, United States.,Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, United States
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