Research Papers:

Auto-antibodies against apolipoprotein A-1 block cancer cells proliferation and induce apoptosis

Nathalie Satta _, Rémy Weppe, Sabrina Pagano, Miguel Frias, Catherine Juillard and Nicolas Vuilleumier

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Oncotarget. 2020; 11:4266-4280. https://doi.org/10.18632/oncotarget.27814

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Nathalie Satta1,2, Rémy Weppe1,2, Sabrina Pagano1,2, Miguel Frias1,2, Catherine Juillard1,2 and Nicolas Vuilleumier1,2

1 Division of Laboratory Medicine, Department of Diagnostic, Geneva University Hospitals, Geneva, Switzerland

2 Department of Medicine, Medical Faculty, Geneva University, Geneva, Switzerland

Correspondence to:

Nathalie Satta,email: [email protected]

Keywords: anti-apoA-1 antibodies; apoptose; cell proliferation; oxidative stress

Received: July 03, 2020     Accepted: October 27, 2020     Published: November 17, 2020

Copyright: © 2020 Satta et al. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


Auto-antibodies against apoA-1 (anti-apoA-1 IgGs) have been identified as important actors of atherosclerosis development through pro-inflammatory and pro-atherogenic properties and to also induce apoptosis in tumoral neuronal and lymphocyte derived cell lines through unknown mechanisms. The purpose of this study was to explore the cellular pathways involved in tumoral cell survival modulated by anti-apoA-1 antibodies. We observed that anti-apoA-1 antibodies induce growth arrest (in G2/M phase) and cell apoptosis through caspase 3 activation, accompanied by a selective p53 phosphorylation on serine 15. RNA sequencing indicated that anti-apoA-1 IgGs affect the expression of more than 950 genes belonging to five major groups of genes and respectively involved in i) cell proliferation inhibition, ii) p53 stabilisation and regulation, iii) apoptosis regulation, iv) inflammation regulation, and v) oxidative stress.

In conclusion, anti-apoA-1 antibodies seem to have a role in blocking tumoral cell proliferation and survival, by activating a major tumor suppressor protein and by modulating the inflammatory and oxidative stress response. Further investigations are needed to explore a possible anti-cancer therapeutic approach of these antibodies in very specific and circumscribed conditions.

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