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Published on: May 17, 2017
Cytogenetic analysis of fetal chondrocytes: a comparative study
Z Gelman-Kohan1, J Rosensaft, H Ben-Hur
1Clinical Genetics Unit, Kaplan Hospital Rehovot, Israel.
Prenatal Diagnosis
|February 1, 1996
Summary
Fetal chondrocytes from missed abortions or stillbirths can be successfully cultured for chromosome analysis. This cartilage cell culture method is effective even with tissue maceration, offering a complementary approach for fetal karyotyping.
Area of Science:
- Medical Genetics
- Developmental Biology
- Prenatal Diagnostics
Background:
- Advancements in prenatal diagnostics have increased pregnancy terminations due to chromosomal abnormalities.
- Timeliness of fetal cell culture initiation is critical for successful cytogenetic analysis.
- Alternative methods are needed for fetal chromosome analysis, especially post-demise.
Purpose of the Study:
- To evaluate the efficacy of culturing fetal chondrocytes for cytogenetic analysis.
- To compare chondrocyte culture success rates with conventional fetal tissue cultures.
- To establish a complementary method for fetal karyotyping in cases of delayed culture.
Main Methods:
- Culturing fetal chondrocytes from the chondrocostal junction and/or patella.
- Performing cytogenetic analyses (karyotyping) on cultured cells.
- Comparing chondrocyte cultures with fetal skin, membrane, and placental tissue cultures.
Main Results:
- Successful culturing and karyotyping of fetal chondrocytes were achieved from missed abortions, intrauterine fetal deaths, and stillbirths.
- Chondrocytes remained viable for a significant period after fetal demise.
- The success rate of chondrocyte cultures was comparable to conventional fetal tissue cultures.
Conclusions:
- Fetal chondrocytes are a viable source for chromosome analysis after fetal demise.
- Chondrocyte culture is a valuable complementary method for fetal karyotyping, particularly when tissue maceration is present.
- This method enhances diagnostic capabilities for chromosomal abnormalities in non-viable fetuses.
