[HTML][HTML] A role for the chaperone complex BAG3-HSPB8 in actin dynamics, spindle orientation and proper chromosome segregation during mitosis

M Fuchs, C Luthold, SM Guilbert, AA Varlet… - PLoS …, 2015 - journals.plos.org
The co-chaperone BAG3, in complex with the heat shock protein HSPB8, plays a role in
protein quality control during mechanical strain. It is part of a multichaperone complex that …

Low lamin A levels enhance confined cell migration and metastatic capacity in breast cancer

ES Bell, P Shah, N Zuela-Sopilniak, D Kim, AA Varlet… - Oncogene, 2022 - nature.com
Aberrations in nuclear size and shape are commonly used to identify cancerous tissue.
However, it remains unclear whether the disturbed nuclear structure directly contributes to the …

[HTML][HTML] Fine-tuning of actin dynamics by the HSPB8-BAG3 chaperone complex facilitates cytokinesis and contributes to its impact on cell division

AA Varlet, M Fuchs, C Luthold, H Lambert… - Cell Stress and …, 2017 - Elsevier
The small heat shock protein HSPB8 and its co-chaperone BAG3 are proposed to regulate
cytoskeletal proteostasis in response to mechanical signaling in muscle cells. Here, we show …

[HTML][HTML] Chaperone-assisted mitotic actin remodeling by BAG3 and HSPB8 involves the deacetylase HDAC6 and its substrate cortactin

C Luthold, AA Varlet, H Lambert, F Bordeleau… - International Journal of …, 2020 - mdpi.com
The fidelity of actin dynamics relies on protein quality control, but the underlying molecular
mechanisms are poorly defined. During mitosis, the cochaperone BCL2-associated …

[HTML][HTML] Unraveling LMNA Mutations in Metabolic Syndrome: Cellular Phenotype and Clinical Pitfalls

C Desgrouas, AA Varlet, A Dutour, D Galant, F Merono… - Cells, 2020 - mdpi.com
This study details the clinical and cellular phenotypes associated with two missense heterozygous
mutations in LMNA, c.1745G>T p.(Arg582Leu), and c.1892G>A p.(Gly631Asp), in two …

[HTML][HTML] CDK1-mediated phosphorylation of BAG3 promotes mitotic cell shape remodeling and the molecular assembly of mitotic p62 bodies

…, SM Guilbert, MA Rodrigue, M Fuchs, AA Varlet… - Cells, 2021 - mdpi.com
The cochaperone BCL2-associated athanogene 3 (BAG3), in complex with the heat shock
protein HSPB8, facilitates mitotic rounding, spindle orientation, and proper abscission of …

[HTML][HTML] Molecular and mechanobiological pathways related to the physiopathology of FPLD2

AA Varlet, E Helfer, C Badens - Cells, 2020 - mdpi.com
Laminopathies are rare and heterogeneous diseases affecting one to almost all tissues, as
in Progeria, and sharing certain features such as metabolic disorders and a predisposition to …

[PDF][PDF] Enhanced cell viscosity: A new phenotype associated with lamin A/C alterations

C Jebane, AA Varlet, M Karnat, LM Hernandez-Cedillo… - Iscience, 2023 - cell.com
Lamin A/C is a well-established key contributor to nuclear stiffness and its role in nucleus
mechanical properties has been extensively studied. However, its impact on whole-cell …

[HTML][HTML] A Rare Mutation in LMNB2 Associated with Lipodystrophy Drives Premature Cell Senescence

AA Varlet, C Desgrouas, C Jebane, N Bonello-Palot… - Cells, 2021 - mdpi.com
Many proteins are causative for inherited partial lipodystrophies, including lamins, the
essential constituents of the nuclear envelope scaffold called the lamina. By performing high …

Regulation of Actin-Based Structure Dynamics by HspB Proteins and Partners

SM Guilbert, AA Varlet, M Fuchs, H Lambert… - The big book on small …, 2015 - Springer
Small heat shock proteins (HspB proteins) form a diverse family of proteins that have evolved
distinct modes of action to protect cells from proteotoxic stress. Studies conducted within …