Related Experiment Video

Updated: Jan 13, 2026

Isolation, Enrichment, and Maintenance of Medulloblastoma Stem Cells
06:32

Isolation, Enrichment, and Maintenance of Medulloblastoma Stem Cells

Published on: September 1, 2010

16.8K

Sprouty in Tumors of the Nervous System

Petra Obexer1, Barbara Hausott2

  • 1Department of Pediatrics II, Medical University of Innsbruck, 6020 Innsbruck, Austria.

International Journal of Molecular Sciences
|January 10, 2026
PubMed

Insights

Sprouty (SPRY) proteins have varied roles in nervous system tumors. SPRY1 and SPRY2 act as oncogenes in glioblastoma, while SPRY2 is a tumor suppressor in neuroblastoma, highlighting complex therapeutic potential.

Area of Science:

  • Molecular Biology
  • Oncology
  • Neuroscience

Background:

  • Sprouty (SPRY) proteins (SPRY1-4) regulate growth factor signaling and have dual roles (oncogene/tumor suppressor) in various cancers.
  • Their specific functions in nervous system tumors like glioblastoma (GB) and neuroblastoma (NB) are not fully understood.
  • Previous research indicates isoform- and malignancy-specific roles, with SPRY1/2/4 implicated in other cancers.

Purpose of the Study:

  • To review the literature on SPRY1-4 functions in glioblastoma and neuroblastoma.
  • To analyze the association of SPRY1-4 expression with patient survival in glioma, glioblastoma, and neuroblastoma.
  • To identify knowledge gaps and guide future research on SPRY proteins in nervous system tumorigenesis.

Main Methods:

  • Literature review of SPRY protein functions in glioblastoma and neuroblastoma.
  • Bioinformatic analysis of public datasets correlating SPRY1-4 expression with overall survival and progression-free survival in glioma, glioblastoma, and neuroblastoma patients.
  • Synthesis of existing data and survival analysis results.

Main Results:

  • SPRY1 and SPRY2 appear to function as oncogenes in glioblastoma; SPRY3 and SPRY4 roles are unclear.
  • SPRY2 acts as a tumor suppressor in neuroblastoma.
  • Low SPRY3 expression correlated with increased survival in neuroblastoma patients, suggesting a potential tumor-promoting role.

Conclusions:

  • SPRY proteins exhibit complex, context-dependent roles in nervous system tumors.
  • Further investigation into SPRY1, SPRY3, and SPRY4 functions in neuroblastoma is warranted.
  • Understanding SPRY protein roles is crucial for developing targeted therapies for glioblastoma and neuroblastoma.
Keywords:
SproutyglioblastomamicroRNAneuroblastomaproliferationsurvival

More Related Videos

Surgical Transplantation of Tumor Cells into the Spinal Cord of Mice05:39

Surgical Transplantation of Tumor Cells into the Spinal Cord of Mice

Published on: December 27, 2024

857
Method for Novel Anti-Cancer Drug Development using Tumor Explants of Surgical Specimens09:26

Method for Novel Anti-Cancer Drug Development using Tumor Explants of Surgical Specimens

Published on: July 29, 2011

17.0K

Related Concept Videos

Neurogenesis and Regeneration of Nervous Tissue01:15

Neurogenesis and Regeneration of Nervous Tissue

In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...
1.5K
Nervous Tissue: Glial Cells01:31

Nervous Tissue: Glial Cells

Glia, or neuroglia, are vital support cells that assist neurons in their functions. The term "glia" originates from the Greek word for "glue," reflecting their role in holding the nervous system together. These cells can be categorized into six types: four in the central nervous system (CNS) and two in the peripheral nervous system (PNS).
The CNS glial cell includes the astrocytes, the oligodendrocytes, the microglia, and the ependymal cells.
Astrocytes are star-shaped glial...
6.5K
Tumor Progression02:07

Tumor Progression

Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
7.2K
Cancer Stem Cells and Tumor Maintenance02:40

Cancer Stem Cells and Tumor Maintenance

Early diagnosis and treatment can often cure cancer. However, even with treatment, residual cells called cancer stem cells (CSC) might remain, often causing tumor recurrence. These cancer stem cells possess the potential for self-renewal and multi-lineage differentiation and are often responsible for the therapeutic resistance displayed in most cancers.
Cancer stem cells are thought to originate from tissue-specific normal stem cells or progenitor cells. The normal stem cells usually reside in...
5.9K
mTOR Signaling and Cancer Progression03:03

mTOR Signaling and Cancer Progression

The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
4.6K
Induced Pluripotent Stem Cells01:06

Induced Pluripotent Stem Cells

Stem cells are undifferentiated cells that divide and produce different cell types. Ordinarily, cells that have differentiated into a specific cell type are terminally differentiated; however, scientists have found a way to reprogram these mature cells so that they dedifferentiate and return to an unspecialized, proliferative state. These cells are pluripotent like embryonic stem cells—able to produce all cell types—and are called induced pluripotent stem cells (iPSCs).
Somatic...
5.4K