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Related Experiment Videos

Marker rhythmometry with macrophage-colony stimulating factor (M-CSF).

S Elg1, E Halberg, S Ramakrishnan

  • 1University of Minnesota, Minneapolis.

Chronobiologia
|October 1, 1991
PubMed
Summary

Macrophage-colony stimulating factor (M-CSF) and Ca125 levels decreased with taxol chemotherapy in ovarian cancer. M-CSF shows potential as a chronobiologic marker for optimizing cancer treatment timing.

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Area of Science:

  • Oncology
  • Chronobiology
  • Biochemistry

Background:

  • Müllerian adenocarcinoma, a type of ovarian cancer, can present with elevated serum markers.
  • Macrophage-colony stimulating factor (M-CSF) and Ca125 are potential biomarkers in gynecologic malignancies.

Purpose of the Study:

  • To investigate the potential of M-CSF as a chronobiologic marker for optimizing taxol chemotherapy in a patient with ovarian cancer.
  • To assess the relationship between M-CSF serum levels, Ca125, and chemotherapy timing.

Main Methods:

  • A single patient with debulked müllerian adenocarcinoma received a 24-hour infusion of taxol (135 mg/m2).
  • Serum M-CSF and Ca125 levels were monitored during and after chemotherapy.
  • Fractionated urine samples were collected over 5 days to analyze M-CSF trends.

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Main Results:

  • Serum M-CSF decreased from 5.3 ng/ml to control levels after the first taxol infusion.
  • Ca125 levels dropped from 1480 U/ml to 14 U/ml after three taxol courses.
  • Serum M-CSF exhibited an approximately 14-hour ultradian modulation, mirroring Ca125 trends.

Conclusions:

  • M-CSF may serve as a chronobiologic marker to individualize chemotherapy scheduling and within-course timing.
  • M-CSF, along with Ca125 and UGP, could be valuable in chronotherapy trials for taxol in humans.
  • Timing cancer treatments based on biological markers may improve therapeutic outcomes.