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Targeting the secretory program of 3q-amplified lung cancers
Luis Pardo1, Jim C Norman1,2
1Cancer Research UK Scotland Institute, Glasgow, United Kingdom.
Abstract:
Designing strategies to target cell proliferation has been a priority of cancer researchers for decades. However, targeting the secretory programs of transformed cells can influence other cancer features such as cell survival, migration, and communication with the tumor stroma. In this issue of the JCI, Tan and colleagues describe functional cooperativity between the Golgi-resident proteins Golgi integral membrane protein 4 (GOLIM4) and ATPase secretory pathway Ca2+ transporting 1 (ATP2C1) in the coordination of a secretory program in 3q-amplified cancers. Targeting these tumors with manganese (Mn2+) promoted GOLIM4 degradation and imposed a secretory blockade that impaired tumor progression and stromal cell recruitment in mice. These findings highlight the secretory program as a therapeutic target in 3q-amplified malignancies and provide a promising strategy to treat tumor progression.
Insights
Researchers found that targeting secretory pathways in 3q-amplified cancers using manganese (Mn2+) can block tumor progression. This strategy degrades Golgi integral membrane protein 4 (GOLIM4), impacting cancer cell survival and recruitment of stromal cells.
Area of Science:
- Oncology
- Cell Biology
- Cancer Research
Background:
- Targeting cancer cell proliferation is a key research area.
- Secretory programs in cancer cells influence survival, migration, and tumor stroma interactions.
- 3q-amplified cancers represent a specific group of malignancies.
Purpose of the Study:
- To investigate the functional cooperativity between Golgi-resident proteins GOLIM4 and ATP2C1 in 3q-amplified cancers.
- To explore the therapeutic potential of targeting the secretory program in these cancers.
Main Methods:
- Described functional cooperativity between Golgi integral membrane protein 4 (GOLIM4) and ATPase secretory pathway Ca2+ transporting 1 (ATP2C1).
- Utilized manganese (Mn2+) to target 3q-amplified tumors.
- Assessed the impact of Mn2+ treatment on GOLIM4 degradation and secretory blockade in mice models.
Main Results:
- Functional cooperativity between GOLIM4 and ATP2C1 was identified in coordinating secretory programs.
- Manganese (Mn2+) treatment promoted GOLIM4 degradation in targeted tumors.
- A secretory blockade was imposed, impairing tumor progression and stromal cell recruitment in mice.
Conclusions:
- The secretory program is a viable therapeutic target in 3q-amplified malignancies.
- Targeting GOLIM4 and ATP2C1 offers a promising strategy to treat tumor progression.
- This approach could lead to novel therapeutic strategies for specific cancer types.
