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第43卷第2期     陈吉俊,王     梁,马诞骅,等. 环状RNA FAT1(hsa_circ_0001461)通过调控miR⁃181d⁃5p/miR⁃199a⁃5p
                  2023年2月         促进口腔鳞状细胞癌进展[J]. 南京医科大学学报(自然科学版),2023,43(2):196-206                    ·203 ·


                inhibitor 组的细胞周期被促进(P < 0.05);siFAT1+             逆转了过表达circFAT1对细胞周期的促进作用(P <
                miR⁃181d⁃5p inhibitor 组逆转了 siFAT1+IC#1 组和         0.05,图5)。类似地,miR⁃199a⁃5p inhibitor 促进细胞
                siNC+miR⁃181d⁃5p inhibitor 组对细胞周期的调控作             周期进展,且部分逆转siFAT1对细胞周期的阻滞作
                用(P < 0.001,图5)。过表达circFAT1缩短了SCC⁃25              用,miR⁃199a⁃5p mimic 则诱导了 SCC⁃25 细胞的
                细胞的 G0/G1 期并相对的延长了 S 期,miR⁃181d⁃5p                G0/G1 期阻滞,且部分逆转了过表达 circFAT1 对细
                mimic则诱导了SCC⁃25细胞的G0/G1期阻滞,且部分                    胞周期的促进作用(P < 0.05,图5)。
                A                                                           siFAT1+miR⁃             siNC+miR⁃
                              siNC+IC#1              siFAT1+IC#1           181d⁃5p inhibitor      181d⁃5p inhibitor
                       300   G0⁃G1   G2⁃M         G0⁃G1  G2⁃M(15.40%)       G0⁃G1  G2⁃M            G0⁃G1  G2⁃M
                           (54.92%) (20.54%)  600 (63.50%)           400  (53.39%) (20.50%)  200  (43.06%) (23.54%)
                    HSC⁃3  Count  200  S(23.81%)  Count  400  S(20.93%)  Count  200  S(26.02%)  Count  100  S(31.46%)

                       100                    200
                        0                      0                       0                      0
                          0   100  200  300      0   100  200  300      0   100  200  300       0  100  200  300
                                PE⁃A (×10)             PE⁃A (×10)             PE⁃A (×10)              PE⁃A (×10)
                                         2
                                                                2
                                                                                                              2
                                                                                       2
                                                                            FAT1+miR⁃               NC+miR⁃
                               NC+MC#1               FAT1+MC#1             181d⁃5p mimic           181d⁃5p mimic
                       400  G0⁃G1   G2⁃M      200   G0⁃G1   G2⁃M         G0⁃G1    G2⁃M             G0⁃G1  G2⁃M
                          (52.78%)  (20.08%)  150  (40.06%) (29.37%)  400  (47.94%) (23.77%)  400  (61.06%) (18.27%)
                    SCC⁃25  Count 300  S(25.84%)  Count  100  S(30.02%)  Count  200  S(27.17%)  Count  200  S(20.43%)
                       200
                       100                     50
                        0                      0                       0                      0
                          0   100  200  300      0   100  200  300      0   100  200  300       0  100  200  300
                                PE⁃A (×10)             PE⁃A (×10)              PE⁃A (×10)             PE⁃A (×10)
                                                                2
                                         2
                                                                                                              2
                                                                                       2
                                                                            siFAT1+miR⁃             siNC+miR⁃
                              siNC+IC#2              siFAT1+IC#2           199a⁃5p inhibitor      199a⁃5p inhibitor
                            G0⁃G1  G2⁃M       600  G0⁃G1   G2⁃M            G0⁃G1                  G0⁃G1
                       400                                                         G2⁃M                   G2⁃M
                          (55.11%) (20.83%)      (61.53%) (16.05%)   300  (54.74%) (19.20%)  200  (41.72%) (22.70%)
                    HSC⁃3  Count  200  S(22.37%)  Count  400  S(19.89%)  Count  200  S(28.50%)  Count  S(34.19%)
                                              200                                           100
                                                                     100
                        0                      0                       0                      0
                          0   100  200  300      0   100  200  300      0   100  200  300      0   100  200  300
                                PE⁃A (×10)             PE⁃A (×10)             PE⁃A (×10)              PE⁃A (×10)
                                         2
                                                                                       2
                                                                2
                                                                                                              2
                                                                            FAT1+miR⁃               NC+miR⁃
                               NC+MC#2               FAT1+MC#2             199a⁃5p mimic           199a⁃5p mimic
                            G0⁃G1                  G0⁃G1   G2⁃M      300   G0⁃G1   G2⁃M           G0⁃G1   G2⁃M
                                   G2⁃M
                       400  (52.37%) (21.33%)  200  (39.23%) (28.40%)     (50.45%) (23.04%)  600  (62.62%) (19.03%)
                    SCC⁃25  Count  200  S(24.31%)  Count  100  S(30.09%)  Count  200  S(26.04%)  Count  400  S(18.02%)
                                                                     100
                                                                                            200
                        0                      0                       0                      0
                          0   100  200  300      0   100  200  300      0   100  200  300       0  100  200  300
                                PE⁃A (×10)             PE⁃A (×10)              PE⁃A (×10)             PE⁃A (×10)
                                                                                       2
                                                                2
                                                                                                              2
                                         2
                B
                    ( % )  150  G0/G1  S  G2/M  ( % )  150  G0/G1  S  G2/M  ( % )  150  G0/G1  S  G2/M  ( % )  150  G0/G1  S  G2/M
                    HSC⁃3中细胞周期  100 0       SCC⁃25中细胞周期  100 0      HSC⁃3中细胞周期  100 0       SCC⁃25中细胞周期  100 0
                                                                      50
                                                                                              50
                                              50
                      50
                                                                                               NC+miR⁃199a⁃5p mimic
                siFAT1+miR⁃181d⁃5p inhibitor  FAT1+miR⁃181d⁃5p mimic  siFAT1+miR⁃199a⁃5p inhibitor  FAT1+miR⁃199a⁃5p mimic
                                                                                             NC+MC#2
                                                                                               FAT1+MC#2
                                               NC+miR⁃181d⁃5p mimic
                       siFAT1+IC#1
                                             NC+MC#1
                                               FAT1+MC#1
                     siNC+miR⁃181d⁃5p inhibitor
                                                                     siNC+miR⁃199a⁃5p inhibitor
                                                                       siFAT1+IC#2
                     siNC+IC#1
                                                                     siNC+IC#2
                                                    A:流式细胞术;B:OSCC细胞周期。
                                  图5  circFAT1通过调控miR⁃181d⁃5p/miR⁃199a⁃5p改变OSCC细胞周期进展
                           Figure 5  circFAT1 alters OSCC cell cycle progression by regulating miR⁃181d⁃5p/miR⁃199a⁃5p
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