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Cancer Stem Cell Biology

Tumor-initiating cells responsible for resistance, recurrence, and metastasis

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

References (5)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Onkoloji department. Book Appointment →

What is Cancer Stem Cell Biology?

Cancer stem cells (CSCs), also called tumor-initiating cells, are a subpopulation of tumor cells with the capacity for self-renewal, differentiation, and tumor reconstitution. They are implicated in therapy resistance, dormancy, recurrence, and metastasis.

CSCs are identified by surface markers (such as CD44, CD133, ALDH activity), functional assays (sphere formation, serial transplantation), and gene expression signatures. They are maintained by signaling pathways including Wnt, Notch, Hedgehog, and Hippo, and they often inhabit specialized niches.

Therapeutic strategies targeting CSCs include inhibitors of stemness pathways, differentiation therapies, immune-mediated approaches, and combinations with conventional treatments. Identifying robust CSC markers across tumor types remains an active research challenge.

Symptoms

Not directly symptomatic; inferred from tumor behavior
Suspected when tumors recur after apparent complete response
Implicated in dormancy and late recurrences
Associated with chemotherapy and radiation resistance
Linked to metastatic potential

Risk Factors

Tumor types with high recurrence after first-line therapy
Aggressive subtypes of breast, brain, pancreatic cancers
Hematologic stem-cell-driven malignancies (AML, CML)
Tumors with mesenchymal-like signatures

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • When tumors recur after standard therapy
  • When considering experimental or trial-based therapies
  • When dormancy or late metastasis appears
  • When biomarker-guided strategies are explored

Treatment Methods

01
Inhibitors of stemness pathways (Wnt, Notch, Hedgehog)
02
Differentiation therapies in selected hematologic cancers
03
Combinations with conventional chemotherapy or radiation
04
Immunotherapy targeting CSC antigens
05
Targeting of CSC niches and microenvironment
06
Clinical trials of novel agents
07
Multidisciplinary care and ongoing research

Which Department to Visit?

You can visit our Onkoloji department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.