Evidence map›Paper›PMID 41704785›Full record

ArticleiScience2026

An AIB1 isoform rewires glucocorticoid receptor signaling to promote TNBC progression.

Amber J Kiliti, Ghada M Sharif, Megan E McNamara, Raneen Rahhal, Susan Prewitt, Marcel O Schmidt, Ci Wu, Junfeng Ma, Eric Glasgow, Anton Wellstein and 1 more

Abstract read
In one paragraph

Article in iScience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Amber J KilitiDepartment of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA.
Ghada M SharifDepartment of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA.
Megan E McNamaraDepartment of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA.
Raneen RahhalDepartment of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA.
Susan PrewittDepartment of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA.
Marcel O SchmidtDepartment of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA.
Ci WuDepartment of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA.
Junfeng MaDepartment of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA.
Eric GlasgowDepartment of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA.
Anton WellsteinDepartment of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA.
Anna T RiegelDepartment of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA.

Funding

TRAINING GRANT IN TUMOR BIOLOGYT32CA009686 · NCI · GEORGETOWN UNIVERSITY · PI ANNA Tate RIEGEL, DAVID J ROBBINS · 1996 to 2026
$10.8M
Mechanism and pathways of Glucocorticoid Receptor (GR) signaling in TNBC progressionR21CA296504 · NCI · GEORGETOWN UNIVERSITY · PI RIEGEL, ANNA TATE · 2025 to 2025
$395k
NCI NIH HHS R21 CA296504NCI NIH HHS T32 CA009686
6 · The paper itself

Abstract

The role of glucocorticoid receptor (GR) signaling in triple-negative breast cancer (TNBC) progression remains poorly defined. Here, we describe a GR-dependent mechanism driving TNBC invasion, mediated by the presence of a subpopulation of cancer cells that express an N-terminal truncated splice isoform of the nuclear receptor coactivator AIB1. Invasion was driven through direct contact of this subpopulation with neighboring cancer cells, and suppressed by GR antagonists or depletion of GR. Crosstalk between the AIB1 isoform-expressing cells and full-length AIB1-expressing cells triggered enhanced GR activation, GR signaling, and distinct patterns of AIB1 genomic engagement. Notably, GR signaling selectively activated pathways driven by Myc in the AIB1 isoform-expressing population, and the reduction of Myc reduced invasion. These findings identify the emergence of an AIB1 isoform-expressing subpopulation as a key mechanism driving progression in TNBC and suggest sensitivity to GR-targeted therapies.

Indexed as

CancerCell biologyMolecular biology

Identifiers

PMID41704785
PMCPMC12907120

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.