Stanniocalcin Dynamics in Cancer Biology
Summary
Stanniocalcins are secreted glycoproteins originally characterised for their roles in calcium and phosphate homeostasis. Mammalian paralogues, Stanniocalcin 1 (STC1) and Stanniocalcin 2 (STC2), have emerged as key modulators of tumour biology. Aberrant expression of these hormones influences cancer cell proliferation, survival, migration and metastatic colonisation. Their effects are mediated through autocrine and paracrine signalling axes—most notably PI3K/AKT, ERK/MAPK and EGFR pathways—culminating in processes such as epithelial–mesenchymal transition (EMT), angiogenesis and remodelling of the tumour microenvironment. Moreover, stanniocalcins regulate interactions with stromal and immune cells, including macrophages and fibroblasts, thereby shaping immune escape and therapy resistance. The dynamic balance of stanniocalcin expression and activity underpins tumour progression, with implications for biomarker development and targeted therapeutics.
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Stanniocalcin Dynamics in Cancer Biology publication trend
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Technical terms
Stanniocalcin 1 (STC1): A secreted glycoprotein hormone that, beyond mineral regulation, acts in autocrine and paracrine modes to drive cancer cell invasion, angiogenesis and immune modulation.
Stanniocalcin 2 (STC2): A paralogue of STC1 induced by hypoxia and cellular stress, promoting tumour cell survival, EMT and resistance to therapies.
Epithelial–Mesenchymal Transition (EMT): A cellular programme whereby epithelial cells acquire motile mesenchymal traits, enabling invasion and dissemination.
Tumour Microenvironment: The complex ecosystem of stromal and immune cells, extracellular matrix and soluble factors that influences tumour progression and therapeutic response.
Autocrine/Paracrine Signalling: Modes of intercellular communication in which secreted factors act on the originating cell itself (autocrine) or on nearby cells (paracrine).
Angiogenesis: The growth of new blood vessels from existing vasculature, critical for supplying nutrients to expanding tumours.
Macrophage Polarisation: The functional reprogramming of macrophages into distinct activation states, with pro-inflammatory (M1) or pro-tumoural (M2) phenotypes under tumour-driven cues.
References
- Stanniocalcin 1 promotes lung metastasis of breast cancer by enhancing EGFR–ERK–S100A4 signaling. Cell Death & Disease (2023).
- Stanniocalcin-1 in tumor immunity: acts via macrophages. Frontiers in Immunology (2024).
- STC2 promotes the epithelial-mesenchymal transition of colorectal cancer cells through AKT-ERK signaling pathways. Oncotarget (2016).
- Stanniocalcin 2 (STC2): a universal tumour biomarker and a potential therapeutical target. Journal of Experimental & Clinical Cancer Research (2022).
- STC2 promotes head and neck squamous cell carcinoma metastasis through modulating the PI3K/AKT/Snail signaling. Oncotarget (2016).
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