Review article

Hallmarks of Cancer: New Dimensions

Cancer Discovery · 2022
Hanahan D. Cancer Discovery. 2022. 12:31-46
Study type
Review article
Study name
Hallmarks of Cancer
Design
Perspective article and conceptual review; not a clinical trial
Source
Cancer Discovery · 2022

In plain words

To understand cancer better, scientists have gathered the shared "hallmarks" of cancer cells into one overall framework. This article suggests that several more factors should be included in this framework, such as the ability of cancer cells to change their form and function, changes in how genes are switched on that do not involve mutations, the microbes living in the body (microbiome), and aged (senescent) cells around the tumour. This article is not about a specific treatment and gives no treatment advice for individual patients; instead, it helps us understand better how cancer starts and progresses.

Key results

Phenotypic plasticity and disrupted cellular differentiation
Proposed independent hallmark
Conceptual proposal; put forward as a discrete hallmark capability
Non-mutational epigenetic reprogramming and polymorphic microbiomes
Proposed enabling characteristics
Both proposed as enabling characteristics in the acquisition of hallmark capabilities
Senescent cells of varying origins
Cell type proposed for addition
Added to the list of functionally important cell types in the tumour microenvironment

Study population

No patients or samples were included; this paper presents a conceptual framework of cancer biology.

Endpoints

No clinical endpoint is defined. The aim of the paper is to refine the concept of the "hallmarks of cancer" and to propose new dimensions for it.

Safety and side effects

Not applicable; this paper did not examine a therapeutic intervention.

Clinical significance and place in guidelines

This paper is a conceptual framework and does not directly offer clinical recommendations or changes in treatment practice. Based on the abstract, its value lies in helping to understand better the mechanisms of cancer development and malignant progression and in applying this knowledge to cancer medicine. Any impact on clinical guidelines should be checked separately.

Limitations

This paper is a conceptual perspective and puts forward the new dimensions as "provisional" and "prospective". No clinical or experimental data to prove them are reported in the abstract.

This summary was prepared by the editorial team from the published paper; the original paper is the final reference. Read the original abstract on PubMed.