Background： Higher hepatitis B surface antigen （HBsAg） facilitates hepatitis C virus （HCV） clearance inpatients with hepatitis B virus （HBV）/HCV co-infection. We investigated the effect of exogenous HBsAgon the...Background： Higher hepatitis B surface antigen （HBsAg） facilitates hepatitis C virus （HCV） clearance inpatients with hepatitis B virus （HBV）/HCV co-infection. We investigated the effect of exogenous HBsAgon the inhibition of HCV replication mediated by natural killer （NK） cells.展开更多
Natural killer(NK)cells can elicit an immune response against malignantly transformed cells without recognizing antigens,and they also exhibit cytotoxic effects and immune surveillance functions in tumor immunotherapy...Natural killer(NK)cells can elicit an immune response against malignantly transformed cells without recognizing antigens,and they also exhibit cytotoxic effects and immune surveillance functions in tumor immunotherapy.Although several studies have shown the promising antitumor effects of NK cells in immunotherapy,their function is often limited in the tumor microenvironment because tumor cells can easily escape NK cell-induced death.Thus,for efficient tumor immunotherapy,the mechanism by which tumor cells escape NK cell-induced cytotoxicity must be fully understood.Various novel molecules and checkpoint receptors that mediate the disruption of NK cells in the tumor microenvironment have been discovered.In this review,we analyze and detail the major activating and inhibitory receptors on the surface of NK cells to delineate the mechanism by which tumor cells suppress NKG2D ligand expression and increase tumor receptor and inhibitory receptor expression[NKG2A,programmed cell death1(PD-1),and T-cell immunoglobulin and immunoreceptor tyrosine inhibitory motif(TIGIT)]on the NK cell surface,and thus inhibit NK cell activity.We also reviewed the current status of treatments based on these surface molecules.By comparing the therapeutic effects related to the treatment status and bypass mechanisms,we attempt to identify optimal single or combined treatments to suggest new treatment strategies for tumor immunotherapy.展开更多
The biomodulative and hematopoietic potentialities of IL-2 and IL-3 activatedbone marrow(ABM)cells from patients with lung adenocarcinoma were studied in vitro.Human bone marrow(BM)cells could be activated by IL-2 in ...The biomodulative and hematopoietic potentialities of IL-2 and IL-3 activatedbone marrow(ABM)cells from patients with lung adenocarcinoma were studied in vitro.Human bone marrow(BM)cells could be activated by IL-2 in culture for 7d.TheseIL-2 ABM cells had higher cytolytic activities against cells of H 7402 cell line and freshautologous adenocarcinoma cells and maintained the cytotoxicities longer than IL-2 acti-vated peripheral blood lymphocytes(APBLs),a point of possible importance in adoptiveimmunotherapy for cancer patients.The IL-2 ABM cells also had similar number ofBFU-E and CFU-GM to that had fresh BM cells if 1L-3 was added 48h alter IL-2 inculture.The IL-2 and IL-3 ABM cells might be used to eliminate tumor cells and tosupply reconstitutive elements of BM for autologous bone marrow transplantation.展开更多
The triple-negative subtype of breast cancer(TNBC)has the bleakest prognosis,owing to its lack of either hormone receptor as well as human epidermal growth factor receptor 2.Henceforth,immunotherapy has emerged as the...The triple-negative subtype of breast cancer(TNBC)has the bleakest prognosis,owing to its lack of either hormone receptor as well as human epidermal growth factor receptor 2.Henceforth,immunotherapy has emerged as the front-runner for TNBC treatment,which avoids potentially damaging chemotherapeutics.However,despite its documented association with aggressive side effects and developed resistance,immune checkpoint blockade continues to dominate the TNBC immunotherapy scene.These immune checkpoint blockade drawbacks necessitate the exploration of other immunotherapeutic methods that would expand options for TNBC patients.One such method is the exploitation and recruitment of natural killer cells,which by harnessing the innate rather than adaptive immune system could potentially circumvent the downsides of immune checkpoint blockade.In this review,the authors will elucidate the advantageousness of natural killer cell-based immuno-oncology in TNBC as well as demonstrate the need to more extensively research such therapies in the future.展开更多
目的:探讨西妥昔单抗(cetuximab)对耐药鼻咽癌CNE2/DDP细胞NKG2D配体(natural killer group 2 member Dligands,NKG2DLs)的表达及NK细胞分泌IFN-γ的影响。方法:流式细胞术检测高、低表达ABCG2(ATP-binding cassettesuperfamily G membe...目的:探讨西妥昔单抗(cetuximab)对耐药鼻咽癌CNE2/DDP细胞NKG2D配体(natural killer group 2 member Dligands,NKG2DLs)的表达及NK细胞分泌IFN-γ的影响。方法:流式细胞术检测高、低表达ABCG2(ATP-binding cassettesuperfamily G member 2)的耐药鼻咽癌CNE2/DDP细胞(简称ABCG2lowCNE2/DDP细胞和ABCG2highCNE2/DDP细胞)表面EGFR的表达水平,以及西妥昔单抗处理前后两种CNE2/DDP细胞表面NKG2DLs的表达水平。西妥昔单抗处理前后的两种CNE2/DDP细胞分别与NK细胞共培养,ELISA检测上清中IFN-γ的分泌水平,LDH释放法检测NK细胞对不同组CNE2/DDP靶细胞的杀伤。结果:ABCG2highCNE2/DDP和ABCG2lowCNE2/DDP细胞表面EGFR的表达率分别为(43.60±2.01)%和(47.20±2.07)%。西妥昔单抗上调ABCG2highCNE2/DDP和ABCG2lowCNE2/DDP细胞表面MICA、MICB、ULBP1和ULBP2的表达,但下调ABCG2highCNE2/DDP细胞表面ULBP3的表达。西妥昔单抗处理两种CNE2/DDP细胞后,与NK细胞的共培养体系中IFN-γ的分泌水平明显上调(P<0.01);西妥昔单抗增强两种CNE2/DDP细胞对NK细胞杀伤的敏感性(P<0.01)。结论:西妥昔单抗可上调耐药鼻咽癌CNE2/DDP细胞NKG2DLs的表达,间接刺激NK细胞分泌IFN-γ,具有双重免疫调节作用。展开更多
目的:初步探讨舒尼替尼诱导高、低表达ABCG2(ATP-binding cassette superfamily G member 2)分子的耐药鼻咽癌CNE2/DDP细胞(简称ABCG2high CNE2/DDP细胞、ABCG2low CNE2/DDP细胞)中NKG2D配体(natural killer group 2 member Dligands,NK...目的:初步探讨舒尼替尼诱导高、低表达ABCG2(ATP-binding cassette superfamily G member 2)分子的耐药鼻咽癌CNE2/DDP细胞(简称ABCG2high CNE2/DDP细胞、ABCG2low CNE2/DDP细胞)中NKG2D配体(natural killer group 2 member Dligands,NKG2DLs)表达的分子机制。方法:Caspase-8活化试剂盒和线粒体膜电位法分别检测NK细胞处理后ABCG2highCNE2/DDP细胞和ABCG2lowCNE2/DDP细胞caspase-8活化水平和线粒体膜电位。RT-PCR检测舒尼替尼处理前后两种CNE2/DDP细胞DNA损伤修复系统相关信号分子mRNA的表达。结果:CNE2/DDP细胞+NK细胞组中两种CNE2/DDP细胞caspase-8活性均明显增强;舒尼替尼处理后的ABCG2lowCNE2/DDP细胞+NK细胞组和ABCG2highCNE2/DDP细胞+NK细胞组中caspase-8的活性是处理前的2～2.5倍(P<0.01)。舒尼替尼预处理后,CNE2/DDP细胞和NK细胞共培养体系中两种CNE2/DDP细胞的线粒体膜电位分别为(76.58±2.32)%和(73.11±1.93)%,较舒尼替尼处理前明显降低(P<0.05)。舒尼替尼可上调两种CNE2/DDP细胞中ATR、CHK1和CHK2 mRNA的表达,并诱导P53和NF-κB mRNA的表达。结论:舒尼替尼可能通过激活DNA损伤修复系统相关信号分子和NF-κB的表达,诱导耐药鼻咽癌CNE2/DDP细胞NKG2DLs的表达,同时经由死亡受体信号通路和线粒体信号通路增强NK细胞诱导的肿瘤细胞凋亡。展开更多
目的:探讨舒尼替尼促进肝癌细胞自然杀伤细胞2族成员D配体(natural killer group 2 member D ligands,NKG2DLs)表达及提高NK细胞杀伤肿瘤细胞的作用。方法:常规体外培养HepG2细胞,免疫磁珠法从健康志愿者外周静脉血中分选NK细胞,流式细...目的:探讨舒尼替尼促进肝癌细胞自然杀伤细胞2族成员D配体(natural killer group 2 member D ligands,NKG2DLs)表达及提高NK细胞杀伤肿瘤细胞的作用。方法:常规体外培养HepG2细胞,免疫磁珠法从健康志愿者外周静脉血中分选NK细胞,流式细胞技术检测NK细胞纯度及1μmol/L舒尼替尼孵育24 h前后肝癌细胞NKG2DLs表达率;LDH释放测定法检测NK细胞对药物处理前后靶细胞的杀伤活性,实时荧光定量PCR检测药物处理前后HepG2细胞NKG2DLs mRNA的表达情况。结果:分选后NK细胞(CD3^-CD16^+CD56^+细胞)的纯度达78%以上;经舒尼替尼处理后靶细胞MHC-Ⅰ类链相关分子A或B(MHC classⅠ-related chain molecules A/B,MICA/MICB)、人巨细胞病毒糖蛋白UL16结合蛋白(UL16-binding proteins,ULBPs)的表达率均有升高,以MICA、MICB和ULBP2升高最明显(F=17.73,P=0.000)。当效靶比为10∶1、20∶1时,NK细胞对舒尼替尼处理前后HepG2细胞的杀伤活性分别从(9.47±1.11)%、(20.45±1.94)%上升到(28.88±1.23)%、(44.93±1.57)%,舒尼替尼处理前后NK细胞对靶细胞杀伤活性的差异有明显统计学意义(P<0.05)。舒尼替尼处理HepG2细胞后,MICA、MICB和ULBP2 mRNA表达水平明显升高(F=62.628,P=0.000)。结论:舒尼替尼能选择性诱导肿瘤细胞高表达NKG2DLs(MICA/B和ULBP2),并增强NK细胞杀伤活性。展开更多
目的:探讨体内条件下舒尼替尼对耐药鼻咽癌CNE2/DDP细胞NKG2DLs(natural killer group 2 member D ligands)表达的诱导作用,及其对NK细胞抗肿瘤活性的影响。方法:建立ABCG2highCNE2/DDP和ABCG2lowCNE2/DDP细胞裸鼠皮下移植瘤模型,分如下...目的:探讨体内条件下舒尼替尼对耐药鼻咽癌CNE2/DDP细胞NKG2DLs(natural killer group 2 member D ligands)表达的诱导作用,及其对NK细胞抗肿瘤活性的影响。方法:建立ABCG2highCNE2/DDP和ABCG2lowCNE2/DDP细胞裸鼠皮下移植瘤模型,分如下8组:A、E组分别接种ABCG2high、ABCG2lowCNE2/DDP细胞,B、F组分别接种舒尼替尼处理的ABCG2high、ABCG2lowCNE2/DDP细胞,C、G组分别接种ABCG2high、ABCG2lowCNE2/DDP细胞后再输注NK细胞;D、H组接种舒尼替尼处理的ABCG2high、ABCG2lowCNE2/DDP细胞后再输注NK细胞。检测各组裸鼠成瘤时间、成瘤率、肿瘤体积和抑瘤率。免疫组织化学法检测移植瘤组织中NKG2DLs的表达。结果:A、B、C、D和E、F、G、H组肿瘤出现时间分别为(5.43±1.00)、(8.50±0.35)、(11.10±1.25)、(13.56±1.23)d和(9.00±1.00)、(12.30±0.78)、(14.50±0.50)、(17.25±0.77)d,其中舒尼替尼与NK细胞联合处理组(D和H组)成瘤时间最晚(P<0.01)。A、B、C、D和E、F、G、H组肿瘤质量分别为(2.63±0.89)、(1.00±0.03)、(0.65±0.08)、(0.21±0.27)g和(2.79±0.83)、(1.18±0.77)、(0.96±0.50)、(0.86±0.82)g,其中舒尼替尼与NK细胞联合处理组肿瘤质量最小(P<0.01);舒尼替尼与NK细胞联合处理的D组和H组的抑瘤率分别为92%和69%。舒尼替尼上调移植瘤组织中NKG2DLs的表达,且ABCG2highCNE2/DDP细胞移植瘤中的NKG2DLs表达率高于ABCG2lowCNE2/DDP细胞。结论:舒尼替尼可在体内诱导CNE2/DDP移植瘤组织表达NKG2DLs,增强NK细胞的抗肿瘤作用。展开更多
基金supported by grants from the National S&T Major Projects for Infectious Diseases Control(2012ZX10002-003and 2013ZX10002-004)the National Major S&T Special Project for “Significant New Drugs Development”(2012ZX09303-019)Peking University People’s Hospital Research and Development Fund(RDB2015-20)
文摘Background： Higher hepatitis B surface antigen （HBsAg） facilitates hepatitis C virus （HCV） clearance inpatients with hepatitis B virus （HBV）/HCV co-infection. We investigated the effect of exogenous HBsAgon the inhibition of HCV replication mediated by natural killer （NK） cells.
文摘Natural killer(NK)cells can elicit an immune response against malignantly transformed cells without recognizing antigens,and they also exhibit cytotoxic effects and immune surveillance functions in tumor immunotherapy.Although several studies have shown the promising antitumor effects of NK cells in immunotherapy,their function is often limited in the tumor microenvironment because tumor cells can easily escape NK cell-induced death.Thus,for efficient tumor immunotherapy,the mechanism by which tumor cells escape NK cell-induced cytotoxicity must be fully understood.Various novel molecules and checkpoint receptors that mediate the disruption of NK cells in the tumor microenvironment have been discovered.In this review,we analyze and detail the major activating and inhibitory receptors on the surface of NK cells to delineate the mechanism by which tumor cells suppress NKG2D ligand expression and increase tumor receptor and inhibitory receptor expression[NKG2A,programmed cell death1(PD-1),and T-cell immunoglobulin and immunoreceptor tyrosine inhibitory motif(TIGIT)]on the NK cell surface,and thus inhibit NK cell activity.We also reviewed the current status of treatments based on these surface molecules.By comparing the therapeutic effects related to the treatment status and bypass mechanisms,we attempt to identify optimal single or combined treatments to suggest new treatment strategies for tumor immunotherapy.
文摘The biomodulative and hematopoietic potentialities of IL-2 and IL-3 activatedbone marrow(ABM)cells from patients with lung adenocarcinoma were studied in vitro.Human bone marrow(BM)cells could be activated by IL-2 in culture for 7d.TheseIL-2 ABM cells had higher cytolytic activities against cells of H 7402 cell line and freshautologous adenocarcinoma cells and maintained the cytotoxicities longer than IL-2 acti-vated peripheral blood lymphocytes(APBLs),a point of possible importance in adoptiveimmunotherapy for cancer patients.The IL-2 ABM cells also had similar number ofBFU-E and CFU-GM to that had fresh BM cells if 1L-3 was added 48h alter IL-2 inculture.The IL-2 and IL-3 ABM cells might be used to eliminate tumor cells and tosupply reconstitutive elements of BM for autologous bone marrow transplantation.
文摘The triple-negative subtype of breast cancer(TNBC)has the bleakest prognosis,owing to its lack of either hormone receptor as well as human epidermal growth factor receptor 2.Henceforth,immunotherapy has emerged as the front-runner for TNBC treatment,which avoids potentially damaging chemotherapeutics.However,despite its documented association with aggressive side effects and developed resistance,immune checkpoint blockade continues to dominate the TNBC immunotherapy scene.These immune checkpoint blockade drawbacks necessitate the exploration of other immunotherapeutic methods that would expand options for TNBC patients.One such method is the exploitation and recruitment of natural killer cells,which by harnessing the innate rather than adaptive immune system could potentially circumvent the downsides of immune checkpoint blockade.In this review,the authors will elucidate the advantageousness of natural killer cell-based immuno-oncology in TNBC as well as demonstrate the need to more extensively research such therapies in the future.
文摘目的:探讨不同分子靶向药物对高表达与低表达ATP结合转运蛋白G超家族成员2(ATP-binding cassette super-family Gmember 2,ABCG2)的人耐药鼻咽癌CNE2/DDP细胞(分别简写为ABCG2highCNE2/DDP和ABCG2lowCNE2/DDP)表面NKG2D配体(natural killer group 2 member Dligands,NKG2DLs)表达的诱导作用及其对NK细胞杀伤敏感性的影响。方法:免疫磁珠法分选ABCG2highCNE2/DDP、ABCG2lowCNE2/DDP细胞及NK细胞。流式细胞术检测分选细胞的纯度和不同分子靶向药物(硼替佐米、索拉非尼、舒尼替尼)处理前后ABCG2highCNE2/DDP和ABCG2lowCNE2/DDP细胞NKG2DLs的表达率。LDH释放法检测不同药物处理前后ABCG2highCNE2/DDP和ABCG2lowCNE2/DDP细胞对NK细胞杀伤的敏感性。结果:ABCG2highCNE2/DDP和ABCG2lowCNE2/DDP细胞表面ABCG2的表达率分别为(91.40±2.32)%和(1.70±0.24)%。分选后NK细胞中CD3-CD16+CD56+细胞的比例达90%以上。药物处理前,ABCG2highCNE2/DDP和ABCG2lowCNE2/DDP细胞MICA、MICB、ULBP1、ULBP2和ULBP3呈弱表达;经不同分子靶向药物处理后,5种NKG2DLs的表达率均明显上升(P<0.01),以舒尼替尼处理后NKG2DLs的表达率升高最明显。随着NKG2DLs表达的上调,ABCG2highCNE2/DDP和ABCG2lowCNE2/DDP细胞对NK细胞杀伤的敏感性也随之升高。结论:不同分子靶向药物可诱导耐药鼻咽癌CNE2/DDP细胞NKG2DLs的表达,以舒尼替尼的诱导作用最强,且肿瘤细胞NKG2DLs的表达与其对NK细胞杀伤敏感性之间存在线性关系。
文摘目的:探讨西妥昔单抗(cetuximab)对耐药鼻咽癌CNE2/DDP细胞NKG2D配体(natural killer group 2 member Dligands,NKG2DLs)的表达及NK细胞分泌IFN-γ的影响。方法:流式细胞术检测高、低表达ABCG2(ATP-binding cassettesuperfamily G member 2)的耐药鼻咽癌CNE2/DDP细胞(简称ABCG2lowCNE2/DDP细胞和ABCG2highCNE2/DDP细胞)表面EGFR的表达水平,以及西妥昔单抗处理前后两种CNE2/DDP细胞表面NKG2DLs的表达水平。西妥昔单抗处理前后的两种CNE2/DDP细胞分别与NK细胞共培养,ELISA检测上清中IFN-γ的分泌水平,LDH释放法检测NK细胞对不同组CNE2/DDP靶细胞的杀伤。结果:ABCG2highCNE2/DDP和ABCG2lowCNE2/DDP细胞表面EGFR的表达率分别为(43.60±2.01)%和(47.20±2.07)%。西妥昔单抗上调ABCG2highCNE2/DDP和ABCG2lowCNE2/DDP细胞表面MICA、MICB、ULBP1和ULBP2的表达,但下调ABCG2highCNE2/DDP细胞表面ULBP3的表达。西妥昔单抗处理两种CNE2/DDP细胞后,与NK细胞的共培养体系中IFN-γ的分泌水平明显上调(P<0.01);西妥昔单抗增强两种CNE2/DDP细胞对NK细胞杀伤的敏感性(P<0.01)。结论:西妥昔单抗可上调耐药鼻咽癌CNE2/DDP细胞NKG2DLs的表达,间接刺激NK细胞分泌IFN-γ,具有双重免疫调节作用。
文摘目的:初步探讨舒尼替尼诱导高、低表达ABCG2(ATP-binding cassette superfamily G member 2)分子的耐药鼻咽癌CNE2/DDP细胞(简称ABCG2high CNE2/DDP细胞、ABCG2low CNE2/DDP细胞)中NKG2D配体(natural killer group 2 member Dligands,NKG2DLs)表达的分子机制。方法:Caspase-8活化试剂盒和线粒体膜电位法分别检测NK细胞处理后ABCG2highCNE2/DDP细胞和ABCG2lowCNE2/DDP细胞caspase-8活化水平和线粒体膜电位。RT-PCR检测舒尼替尼处理前后两种CNE2/DDP细胞DNA损伤修复系统相关信号分子mRNA的表达。结果:CNE2/DDP细胞+NK细胞组中两种CNE2/DDP细胞caspase-8活性均明显增强;舒尼替尼处理后的ABCG2lowCNE2/DDP细胞+NK细胞组和ABCG2highCNE2/DDP细胞+NK细胞组中caspase-8的活性是处理前的2～2.5倍(P<0.01)。舒尼替尼预处理后,CNE2/DDP细胞和NK细胞共培养体系中两种CNE2/DDP细胞的线粒体膜电位分别为(76.58±2.32)%和(73.11±1.93)%,较舒尼替尼处理前明显降低(P<0.05)。舒尼替尼可上调两种CNE2/DDP细胞中ATR、CHK1和CHK2 mRNA的表达,并诱导P53和NF-κB mRNA的表达。结论:舒尼替尼可能通过激活DNA损伤修复系统相关信号分子和NF-κB的表达,诱导耐药鼻咽癌CNE2/DDP细胞NKG2DLs的表达,同时经由死亡受体信号通路和线粒体信号通路增强NK细胞诱导的肿瘤细胞凋亡。
文摘目的:探讨舒尼替尼促进肝癌细胞自然杀伤细胞2族成员D配体(natural killer group 2 member D ligands,NKG2DLs)表达及提高NK细胞杀伤肿瘤细胞的作用。方法:常规体外培养HepG2细胞,免疫磁珠法从健康志愿者外周静脉血中分选NK细胞,流式细胞技术检测NK细胞纯度及1μmol/L舒尼替尼孵育24 h前后肝癌细胞NKG2DLs表达率;LDH释放测定法检测NK细胞对药物处理前后靶细胞的杀伤活性,实时荧光定量PCR检测药物处理前后HepG2细胞NKG2DLs mRNA的表达情况。结果:分选后NK细胞(CD3^-CD16^+CD56^+细胞)的纯度达78%以上;经舒尼替尼处理后靶细胞MHC-Ⅰ类链相关分子A或B(MHC classⅠ-related chain molecules A/B,MICA/MICB)、人巨细胞病毒糖蛋白UL16结合蛋白(UL16-binding proteins,ULBPs)的表达率均有升高,以MICA、MICB和ULBP2升高最明显(F=17.73,P=0.000)。当效靶比为10∶1、20∶1时,NK细胞对舒尼替尼处理前后HepG2细胞的杀伤活性分别从(9.47±1.11)%、(20.45±1.94)%上升到(28.88±1.23)%、(44.93±1.57)%,舒尼替尼处理前后NK细胞对靶细胞杀伤活性的差异有明显统计学意义(P<0.05)。舒尼替尼处理HepG2细胞后,MICA、MICB和ULBP2 mRNA表达水平明显升高(F=62.628,P=0.000)。结论:舒尼替尼能选择性诱导肿瘤细胞高表达NKG2DLs(MICA/B和ULBP2),并增强NK细胞杀伤活性。
文摘目的:探讨体内条件下舒尼替尼对耐药鼻咽癌CNE2/DDP细胞NKG2DLs(natural killer group 2 member D ligands)表达的诱导作用,及其对NK细胞抗肿瘤活性的影响。方法:建立ABCG2highCNE2/DDP和ABCG2lowCNE2/DDP细胞裸鼠皮下移植瘤模型,分如下8组:A、E组分别接种ABCG2high、ABCG2lowCNE2/DDP细胞,B、F组分别接种舒尼替尼处理的ABCG2high、ABCG2lowCNE2/DDP细胞,C、G组分别接种ABCG2high、ABCG2lowCNE2/DDP细胞后再输注NK细胞;D、H组接种舒尼替尼处理的ABCG2high、ABCG2lowCNE2/DDP细胞后再输注NK细胞。检测各组裸鼠成瘤时间、成瘤率、肿瘤体积和抑瘤率。免疫组织化学法检测移植瘤组织中NKG2DLs的表达。结果:A、B、C、D和E、F、G、H组肿瘤出现时间分别为(5.43±1.00)、(8.50±0.35)、(11.10±1.25)、(13.56±1.23)d和(9.00±1.00)、(12.30±0.78)、(14.50±0.50)、(17.25±0.77)d,其中舒尼替尼与NK细胞联合处理组(D和H组)成瘤时间最晚(P<0.01)。A、B、C、D和E、F、G、H组肿瘤质量分别为(2.63±0.89)、(1.00±0.03)、(0.65±0.08)、(0.21±0.27)g和(2.79±0.83)、(1.18±0.77)、(0.96±0.50)、(0.86±0.82)g,其中舒尼替尼与NK细胞联合处理组肿瘤质量最小(P<0.01);舒尼替尼与NK细胞联合处理的D组和H组的抑瘤率分别为92%和69%。舒尼替尼上调移植瘤组织中NKG2DLs的表达,且ABCG2highCNE2/DDP细胞移植瘤中的NKG2DLs表达率高于ABCG2lowCNE2/DDP细胞。结论:舒尼替尼可在体内诱导CNE2/DDP移植瘤组织表达NKG2DLs,增强NK细胞的抗肿瘤作用。
