Related Experiment Video
Updated: Sep 10, 2025

Author Spotlight: Tracing the Ferroptotic Signatures and Cell Death Dynamics in Medulloblastoma for Advanced Therapeutics
Published on: March 15, 2024
KIAA1429 Silencing ameliorates osteosarcoma progression through promoting ferroptosis via Nrf2/NQO1 axis
Cheng Xie1, Yihui Xiao1, Lubing Yang1
1Department of Spine Surgery, The First Affiliated Hospital of Gannan Medical University, No. 128 Jingling Road, Ganzhou, 341099, Jiangxi, People's Republic of China.
Background:
Osteosarcoma (OS) is the most common primary malignant bone tumor. Recent insights into ferroptosis have opened new avenues for OS therapy. However, the role of KIAA1429 in regulating ferroptosis and its underlying mechanisms in OS remain unclear.
Methods:
The effects of KIAA1429 silencing on ferroptosis were evaluated in OS cells treated with erastin alone or in combination with ferrostatin-1 (Fer-1), as well as in an OS mouse model administered sulfasalazine (SAS). Methylation sites on the Nrf2 and NQO1 transcripts were predicted using the SRAMP database and subsequently validated by MeRIP-qPCR. Furthermore, RTA-408 was employed to further investigate the impact of KIAA1429 knockdown on the Nrf2/NQO1 signaling pathway in OS cells.
Results:
KIAA1429 silencing reduced cell viability and increased the expression of ferroptosis-related markers in erastin-treated OS cells, and these effects were reversed by Fer-1. Knockdown of KIAA1429 further enhanced SAS-induced ferroptosis and suppression of xenograft tumor growth. MeRIP-qPCR and dual-luciferase reporter assays demonstrated that KIAA1429 directly regulated Nrf2 via m6A-dependent modification of its 3'UTR. KIAA1429 depletion inhibited viability, migration, and invasion and promoted apoptosis of MG-63 and U2OS cells through suppression of the Nrf2/NQO1 signaling.
Conclusion:
KIAA1429 silencing facilitates ferroptosis, thereby delaying OS progression, potentially through modulation of the Nrf2/NQO1 signaling pathway.
Insights
Silencing KIAA1429 promotes ferroptosis, a cell death process, in osteosarcoma (OS) cells. This finding offers a new therapeutic strategy for treating this common bone cancer.
Area of Science:
- Oncology
- Molecular Biology
- Cell Death Research
Background:
- Osteosarcoma (OS) is the most prevalent primary malignant bone tumor.
- Ferroptosis, a regulated cell death pathway, presents novel therapeutic opportunities for OS.
- The specific role of KIAA1429 in ferroptosis and its mechanisms in OS are not well understood.
Purpose of the Study:
- To investigate the function of KIAA1429 in regulating ferroptosis in osteosarcoma.
- To elucidate the underlying molecular mechanisms by which KIAA1429 influences ferroptosis in OS.
- To assess the therapeutic potential of targeting KIAA1429 in OS treatment.
Main Methods:
- KIAA1429 silencing effects on ferroptosis were assessed in OS cells and an OS mouse model.
- Methylation analysis of Nrf2 and NQO1 transcripts was performed using SRAMP and MeRIP-qPCR.
- The Nrf2/NQO1 signaling pathway was investigated following KIAA1429 knockdown using RTA-408.
Main Results:
- KIAA1429 silencing enhanced erastin-induced ferroptosis and suppressed tumor growth in vivo.
- KIAA1429 was found to directly regulate Nrf2 via m6A modification of its 3'UTR.
- KIAA1429 depletion inhibited OS cell viability, migration, and invasion, while promoting apoptosis through the Nrf2/NQO1 pathway.
Conclusions:
- KIAA1429 silencing promotes ferroptosis in osteosarcoma.
- This action potentially delays OS progression by modulating the Nrf2/NQO1 signaling pathway.
- Targeting KIAA1429 represents a promising therapeutic strategy for osteosarcoma.
Related Concept Videos
PI3K/mTOR/AKT Signaling Pathway
Targeted Cancer Therapies
There are several types of targeted therapies against...
NF-κB-dependent Signaling Pathway
NF-κB-dependent Signaling Mechanism
The...
Necrosis
Morphological Manifestations of Necrosis
Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become...
Experimental RNAi
The Retinoblastoma Gene
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...

