Imaging of Endocytic Trafficking and Extracellular Vesicles Released Under Neratinib Treatment in ERBB2<sup>+</sup> Breast Cancer Cells.

Author: AielloCinzia, BelleseGrazia, CastagnolaPatrizio, CorteseKatia, DameriMartina, GaglianiMaria Cristina, LechiaraAnastasia, MarconiSilvia, SantamariaSara, TagliattiErica

Paper Details 
Original Abstract of the Article :
Breast cancers (BCa) with ERBB2 amplification show rapid tumor growth, increased disease progression, and lower survival rate. Deregulated intracellular trafficking and extracellular vesicle (EVs) release are mechanisms that support cancer progression and resistance to treatments. Neratinib (NE) is ...See full text at original site
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引用元:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8246527/

データ提供:米国国立医学図書館(NLM)

The Intricate Dance of Neratinib and ERBB2 in Breast Cancer

This research delves into the complex world of breast cancer, specifically those with ERBB2 amplification. These cancers are notorious for their rapid growth, relentless progression, and dismal survival rates. Imagine a bustling desert oasis, teeming with life, but on the brink of collapse due to a lack of resources. This is analogous to ERBB2 amplified breast cancer cells, where the ERBB2 protein, like an over-enthusiastic desert dweller, overworks itself, leading to uncontrolled growth. The researchers here investigate the effects of neratinib (NE), a potent ERBB inhibitor, on the fate of ERBB2 in these cells.

The study employed confocal and electron microscopy to unravel the intricacies of NE's action on ERBB2. Their findings are akin to uncovering hidden passages in the bustling desert oasis, revealing a complex network of tunnels and chambers. They observed that NE induced a modest internalization of ERBB2, like a clever desert inhabitant seeking shelter from the scorching sun, along with an increase in clathrin-mediated endocytosis, a process that resembles a controlled entry point into the oasis. Furthermore, the study highlighted the presence of two distinct types of extracellular vesicles (EVs), like messengers from the oasis, carrying information to the surrounding desert. NE increased the overall release of these EVs, suggesting a clever strategy for the cancer cells to adapt and survive.

Unveiling the Potential of Neratinib

The findings of this study shed light on the potential of NE to disrupt the intricate dance between ERBB2 and its messengers. NE, in its quest to control the over-enthusiastic ERBB2, seems to influence the release of these messengers, potentially leading to a reduction of ERBB2 transferred to distant target cells. This could be a promising strategy to limit the spread of the cancer, akin to closing the pathways leading to other oases.

Implications for Cancer Treatment

This research, like a beacon in the vast desert, illuminates the potential of NE as a therapeutic strategy for ERBB2-positive breast cancers. It underscores the importance of understanding the complex mechanisms of drug action in cancer cells, as well as the potential role of EVs in mediating cancer progression. This knowledge could pave the way for more targeted and effective therapies to combat this devastating disease.

Dr.Camel's Conclusion

This research beautifully illustrates the complexities of cancer biology, demonstrating the delicate balance between cellular survival and death. It offers a glimpse into the intricate dance between cancer cells and their environment, highlighting the potential of manipulating this dance to our advantage. Like a skilled desert navigator, we must carefully navigate these complexities to find the most effective ways to combat this formidable foe.

Date :
  1. Date Completed 2021-10-06
  2. Date Revised 2022-07-16
Further Info :

Pubmed ID

34126793

DOI: Digital Object Identifier

PMC8246527

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English

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