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    Comparative DNA Cytometry of Primary and Recurrent Soft Tissue Sarcomas

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    The goal of comparative investigation was to reveal the distinctive features of the DNA content and cell distribution in the phases of the cell cycle of recurrent STS. DNA cytometry in the tumor tissue of 30 primary soft tissue sarcomas (t2a-2bn0M0) and 30 STS recurrences (t2-3n0M1) was carried out using the method of flow cytofluorometry. the tumor ploidy and cell distribution in the cell cycle phases were analyzed. Results. A number of differences in the DNA cytometric parameters of primary and recurrent STS have been revealed, they include: an increase in the proportion of aneuploid tumors in case of recurrence, the number of tumors with DNA index within the mitotic cycle, an increase in the proportion of cells in G2+M- phase of diploid and aneuploidy tumors and a decrease in S- phase of aneuploid ones. It has been shown that with a G2 differentiation degree, the proportion of cells in G2+M, S- and IP of recurrent STS is significantly lower than the primary parameters. An increase in the proportion of cells in G2+M- phase and a decrease in the rate of proliferation of recurrent STS, depending on the stage, are shown only in case of stage III. Conclusion. The revealed features of DNA content and cell cycle of tumor cells of soft tissue sarcomas will allow to approach to understanding of biological bases of recurrence of this malignant disease.ЦСлью исслСдования Π±Ρ‹Π»ΠΎ Π²Ρ‹ΡΠ²ΠΈΡ‚ΡŒ Π² ΡΡ€Π°Π²Π½ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΌ аспСктС ΠΎΡ‚Π»ΠΈΡ‡ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹Π΅ особСнности содСрТания Π”ΠΠš ΠΈ распрСдСлСния ΠΊΠ»Π΅Ρ‚ΠΎΠΊ ΠΏΠΎ Ρ„Π°Π·Π°ΠΌ ΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½ΠΎΠ³ΠΎ Ρ†ΠΈΠΊΠ»Π° Ρ€Π΅Ρ†ΠΈΠ΄ΠΈΠ²Π½Ρ‹Ρ… БМВ. ΠœΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ ΠΏΡ€ΠΎΡ‚ΠΎΡ‡Π½ΠΎΠΉ Ρ†ΠΈΡ‚ΠΎΡ„Π»ΡƒΠΎΡ€ΠΈΠΌΠ΅Ρ‚Ρ€ΠΈΠΈ ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈ Π”ΠΠš-Ρ†ΠΈΡ‚ΠΎΠΌΠ΅Ρ‚Ρ€ΠΈΡŽ Π² ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²ΠΎΠΉ Ρ‚ΠΊΠ°Π½ΠΈ 30 ΠΏΠ΅Ρ€Π²ΠΈΡ‡Π½Ρ‹Ρ… сарком мягких Ρ‚ΠΊΠ°Π½Π΅ΠΉ (T2a-2bN0M0) ΠΈ 30 – Ρ€Π΅Ρ†ΠΈΠ΄ΠΈΠ²ΠΎΠ² БМВ (t2-3n0M1). Π°Π½Π°Π»ΠΈΠ·ΠΈΡ€ΠΎΠ²Π°Π»ΠΈ ΠΏΠ»ΠΎΠΈΠ΄Π½ΠΎΡΡ‚ΡŒ ΠΎΠΏΡƒΡ…ΠΎΠ»ΠΈ ΠΈ распрСдСлСниС ΠΊΠ»Π΅Ρ‚ΠΎΠΊ ΠΏΠΎ Ρ„Π°Π·Π°ΠΌ ΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½ΠΎΠ³ΠΎ Ρ†ΠΈΠΊΠ»Π°. Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹. ВыявлСн ряд Ρ€Π°Π·Π»ΠΈΡ‡ΠΈΠΉ Π”ΠΠš-цитомСтричСских ΠΏΠΎΠΊΠ°Π·Π°Ρ‚Π΅Π»Π΅ΠΉ ΠΏΠ΅Ρ€Π²ΠΈΡ‡Π½Ρ‹Ρ… ΠΈ Ρ€Π΅Ρ†ΠΈΠ΄ΠΈΠ²Π½Ρ‹Ρ… БМВ, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ Π·Π°ΠΊΠ»ΡŽΡ‡Π°ΡŽΡ‚ΡΡ: Π² ΡƒΠ²Π΅Π»ΠΈΡ‡Π΅Π½ΠΈΠΈ Π΄ΠΎΠ»ΠΈ Π°Π½Π΅ΡƒΠΏΠ»ΠΎΠΈΠ΄Π½Ρ‹Ρ… ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅ΠΉ ΠΏΡ€ΠΈ Ρ€Π΅Ρ†ΠΈΠ΄ΠΈΠ²Π°Ρ…, числа ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅ΠΉ с Π˜Π”ΠΠš Π² ΠΏΡ€Π΅Π΄Π΅Π»Π°Ρ… митотичСского Ρ†ΠΈΠΊΠ»Π°, ΡƒΠ²Π΅Π»ΠΈΡ‡Π΅Π½ΠΈΠ΅ Π΄ΠΎΠ»ΠΈ ΠΊΠ»Π΅Ρ‚ΠΎΠΊ Π² G2+M- Ρ„Π°Π·Π΅ Π΄ΠΈΠΏΠ»ΠΎΠΈΠ΄Π½Ρ‹Ρ… ΠΈ Π°Π½Π΅ΡƒΠΏΠ»ΠΎΠΈΠ΄Π½Ρ‹Ρ… ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅ΠΉ ΠΈ сниТСниС Π² S-Ρ„Π°Π·Π΅ Π°Π½Π΅ΡƒΠΏΠ»ΠΎΠΈΠ΄Π½Ρ‹Ρ…. Показано, Ρ‡Ρ‚ΠΎ ΠΏΡ€ΠΈ стСпСни Π΄ΠΈΡ„Ρ„Π΅Ρ€Π΅Π½Ρ†ΠΈΡ€ΠΎΠ²ΠΊΠΈ G2 доля ΠΊΠ»Π΅Ρ‚ΠΎΠΊ Π² Ρ„Π°Π·Π°Ρ… G2+M, S- ΠΈ ИП Ρ€Π΅Ρ†ΠΈΠ΄ΠΈΠ²Π½Ρ‹Ρ… БМВ Π·Π½Π°Ρ‡ΠΈΠΌΠΎ Π½ΠΈΠΆΠ΅ ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² ΠΏΠ΅Ρ€Π²ΠΈΡ‡Π½Ρ‹Ρ…. Π£Π²Π΅Π»ΠΈΡ‡Π΅Π½ΠΈΠ΅ Π΄ΠΎΠ»ΠΈ ΠΊΠ»Π΅Ρ‚ΠΎΠΊ Π² G2+M-Ρ„Π°Π·Π΅ ΠΈ сниТСниС Ρ‚Π΅ΠΌΠΏΠΎΠ² ΠΏΡ€ΠΎΠ»ΠΈΡ„Π΅Ρ€Π°Ρ†ΠΈΠΈ Ρ€Π΅Ρ†ΠΈΠ΄ΠΈΠ²Π½Ρ‹Ρ… БМВ Π² зависимости ΠΎΡ‚ стадии ΠΏΠΎΠΊΠ°Π·Π°Π½Ρ‹ Ρ‚ΠΎΠ»ΡŒΠΊΠΎ ΠΏΡ€ΠΈ III стадии. Π’Ρ‹Π²ΠΎΠ΄Ρ‹. ВыявлСнныС особСнности содСрТания Π”ΠΠš ΠΈ ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² ΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½ΠΎΠ³ΠΎ Ρ†ΠΈΠΊΠ»Π° ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²Ρ‹Ρ… ΠΊΠ»Π΅Ρ‚ΠΎΠΊ сарком мягких Ρ‚ΠΊΠ°Π½Π΅ΠΉ позволят ΠΏΡ€ΠΈΠ±Π»ΠΈΠ·ΠΈΡ‚ΡŒΡΡ ΠΊ пониманию биологичСских основ рСцидивирования этого злокачСствСнного заболСвания
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