小鼠骨髓基质细胞系QXMSC1促进骨髓移植后的造血重建

目的：观察骨髓基质细胞系ＱＸＭＳＣ１在骨髓移植后早期能否加速造血重建。方法：用脾克隆形成单位测定ＱＸＭＳＣ１对造血干细胞的影响。计数每根股骨有核细胞数，用半固体琼脂克隆形成法测定粒单系祖细胞（ＣＦＵ－ＧＭ），微量甲基纤维素法测定红系祖细胞（ＣＦＵ－Ｅ及ＢＦＵ－Ｅ）。结果：ＱＸＭＳＣ１细胞可明显增加ＣＦＵ－Ｓ克隆数。在骨髓移植后第１０天，ＱＸＭＳＣ１可增加骨髓有核细胞数，增加ＣＦＵ－ＧＭ、ＣＦＵ－Ｅ     

重组人造血生长因子对骨髓增生异常综合征造血干细胞集落分化的研究

用体外细胞培养法，观察重组造血生长因子（Ｇ－ＣＳＦ、ＧＭ－ＣＳＦ、ＰＨＡ－ＬＣＭ）对骨髓增生异常综合征（ＭＤＳ）造血干细胞集落分化进行研究。结果表明：ＭＤＳ造血干细胞对正常造血生长因子Ｇ－ＣＳＦ、ＧＭ－ＣＳＦ的感受性低于正常组而高于再障（ＡＡ）组，其丛／集比值明显高于正常组和ＡＡ组，在ＭＤＳ转化为白血病过程中，其造血干细胞对正常造血生长因子的感受性降低尤为显著，而对白血病克隆源性细胞生长所需要的条     

骨髓增生异常综合征粒-单祖细胞的体外观察

骨髓增生异常综合征（ＭＤＳ）是造血干细胞克隆性疾患,存在明显的病态造血。一些学者对ＭＤＳ造血干细胞体外培养时表现出的异常进行了大量的观察和研究,结果表明大多数ＭＤＳ患者粒－单祖细胞（ＣＦＵ－ＧＭ）存在体外增殖、分化障碍,表现为ＣＦＵ－ＧＭ的明显减少,...     

异基因外周血干细胞的动员,检测及临床移植的应用研究

目的：探讨异基因外周血干细胞移植（ａｌｌｏ－ＰＢＳＣＴ）供者经Ｇ－ＣＳＦ或Ｇ－ＣＳＦ＋ＧＭ－ＣＳＦ动员后,采集的外周血干细胞（ＰＢＳＣ）移植物中的幼稚粒细胞与单个核细胞（ＭＮＣ）、ＣＤ３４＾＋细胞及ＣＦＵ－ＧＭ之间的相关性和移植的剂量标准及临床应用效果。方法：对１１例ａｌｌｏ－ＰＢＳＣＴ供者用Ｇ－ＣＳＦ（９例）或Ｇ－ＣＳＦ＋ＧＭ－ＣＳＦ（２例）进行动员,于动员前及动员后,分别对外周血及ＭＮＣ惧物中的幼稚粒细胞、ＣＤ３４＾＋细胞及ＣＦＵ－ＧＭ进行检测计数,预处理方法主要用大剂量环磷酰胺（ＣＴＸ）＋全身照射（ＴＢＩ）。结果：动员后外周血中的幼稚粒细胞与ＣＤ３４＾＋细胞及ＣＦＵ－ＧＭ同步增加,外周血ＭＮＣ中的幼稚粒细胞数与ＣＤ３４＾＋细胞数及ＣＦＵ－ＧＭ有较好的相关性。１１例患者全部植活和恢复造血功能,并为染色体核型     

脐血血清对正常及白血病骨髓粒－单祖细胞生长的影响

利用粒－单祖细胞集落（ＣＦＵ－ＧＭ）的体外培养，观察脐血血清（ＵＣＳ）对正常及白血病骨髓造血祖细胞生长的影响，结果表明：ＵＣＳ对正常及急性白血病（ＡＬ）患者完全缓解的骨髓ＣＦＵ－ＧＭ形成有一定增殖作用，而对初发／复发未治ＡＬ患者的骨髓ＣＦＵ－ＧＭ形成无类似作用。     

SMU1对正常人体外PBMNC功能效应的影响

目的：研究ＳＭＵ１（自制抗ＣＤ３）对正常人外周血单个核细胞（ＰＢＭＮＣ）的体外功能效应,方法：（地）以ＳＭＵ１６种不同浓度、ＩＬ－２、ＭＣＤ３（丝裂性抗ＣＤ３）孵育ＰＢＭＮＣ,观察细胞密度和形态变化,ＭＴＴ法测定细胞增殖力;（２）分别用ＳＭＵ１０．５ｍｇ／Ｌｆ、５ｍｇ／Ｌ、ＩＬ－２２００ｋＵ／Ｌ培养ＰＢＭＮＣ３ｄ,ＥＬＩＳＡ法测定上清液ＩＬ－６、ＩＬ－８、ＩＬ－１２、ＩＦＮ－α及Ｇ－ＣＳＦ水平。结     

骨髓增生异常综合征的造血抑制性T细胞

以体外培养的方法，对１５例骨髓增生异常综合征患者的骨髓，用社体介异的单克隆抗体选择性去除Ｔ细胞亚群，通过粒－单核祖细胞集落产率的变化，观察Ｔ细胞亚群对造血细胞的抑制活性，结果发现１５例ＭＤＳ骨髓去除ＣＤ４细胞前后ＣＦＵ－ＧＭ集落产率无明显变化；去除ＣＤ８细胞后，１１例ＭＤＳ骨髓ＣＦＵ－ＧＭ集落产率无明显变化，４例ＭＤＳ骨髓ＣＦＵ－ＧＭ集落产率增加３８％－７１％，与未去除ＣＤ８细胞组有明显差（Ｐ＜０     

抗辐射口服液对CFU—S保护作用的实验研究

应用多能造血干细胞（ＣＦＵ－Ｓ）检测技术，观察了抗辐射口服液对受照小鼠ＣＦＵ—Ｓ、骨髓有核细胞、脾重等造血组织的变化。研究结果表明，抗辐射口服液具有促进多能造血干细胞、骨髓有核细胞生成及增加脾脏重量的作用。其确切机理有待于进一步研究。     

二例重型再生障碍性贫血患者血清体外加速正常人CD_(34)~ 细胞凋亡的研究

目的：了解再生障碍性贫血患者血清中的造血抑制物及其与造血细胞过度凋亡之间的关系。方法：应用甲基纤维素体外培养法,亲和层析法,ＤＮＡ末端标记及流式细胞术分析观察２例重型再生障碍性贫血Ⅰ型（ＳＡＡ－Ⅰ）患者血清在体外抑制正常人骨髓造血祖细胞增殖及促进正常人ＣＤ＋３４细胞凋亡的作用。结果：２例患者血清在体外均可明显抑制正常人ＢＦＵ－Ｅ及ＣＦＵ－ＧＭ的增殖,这种抑制活性存在于血清ＩｇＧ片段中,为非补体依赖性。患者血清及ＩｇＧ片段在体外可加速正常人ＣＤ＋３４细胞凋亡,其中ＩｇＧ较血清的促凋亡作用更为显著（Ｐ均＜０．０１）。经研究证实这种ＩｇＧ可特异性吸附于ＣＤ＋３４细胞表面。经甲泼尼龙治疗后的恢复期血清上述作用消失。结论：某些ＳＡＡ－Ⅰ患者血清中存在促进ＣＤ＋３４细胞过度凋亡的造血抑制物ＩｇＧ,造血细胞过度凋亡是患者发病机制之一。甲泼尼龙对这类患者疗效显著。     

多发性硬化患者单个核细胞表面LFA—1,Mac—1的检测

用ＡＰＡＡＰ法,检测了多发性硬化（ＭＳ）患者单个核细胞表面ＬＦＡ－１（ＣＤ）１１ａ／ＣＤ１８）、Ｍａｃ－１（ＣＤ１１ｂ／ＣＤ１８）的表达情况。结果显示,ＭＳ患者单个核细胞ＣＤ１１ａ、ＣＤ１１ｂ、ＣＤ１８阳性细胞的百分率均明显高于正常对照组。ＬＦＡ－Ｉ、Ｍａｃ－１与它们的配体ＩＣＡＭ－１在ＭＳ的发病过程中发挥了重要作用。本研究为深入探讨粘附分子在多发性硬化发病机制中的作用做了初步尝试。     

The effects of total saponins of panax ginseng on hematopoietic progenitor cells in healthy humans and aplastic anemia patients

Ginseng is said to have beneficial effects on anemia. The proliferation effects of total saponins of Panax ginseng (TSPG) on hematopoietic progenitor cell in healthy individuals and 29 patients with aplastic anemia (AA) were observed through bone marrow cultures of burst forming unit-erythroid (BFU-E), colony forming unit-erythroid (CFU-E) and colony forming unit-granulocyte/macrophage (CFU-GM) in vitro compared with methyltestosterone (MT). The results suggest TSPG might prompt the proliferation of normal progenitor cells at a concentration of 20 μg/ml. The numbers of BFU-E,CFU-E and CFU-GM increased by 37.8±2.9%, 31.4±2.9% and 33.3±4.0% respectively overthe controls; furthermore TSPG was still useful to BFU-E, CFU-E growth without Epo in vitro, although the colony numbers were much lower. Otherwise MT was useless to CFU-GM. Of the 29 patients with AA, 14 who responded to MT showed sensitivity to TSPG in marrow culture (the rising rate of colony formation exceeded 30%), but immune-mediated AA (patient’s peripheral blood mononucleated cell suppressed normal hematopoiesis) and stem cell decreased AA (few of colonies were formed) showed almost no expression for TSPG activity because of the immunological suppression system and the absence of progenitors.     

系统性红斑狼疮患者外周血干细胞的研究

应用甲基纤维素体外培养法对25例系统性红斑狼疮(SLE)患者进行外周血红系造血干细胞(BFU—E)及粒单系造血干细胞(CFU一GM)测定.结果显示活动期患者两者均显著低于正常人(P<0.01,P<0.01)及非活动期患者(P<0.01,P<0.05).去除患者外周血中的单核细胞及T淋巴细胞并不能使之恢复正常.BFU—E及(CFU一GM的降低与血清IgG的浓度呈负相关(r=-0.58,P<0.01及r=-0.49,P<0.01),与抗双链DNA抗体也呈负相关(r=-0.65,P<0.01及r=-0.57,P<0.01).而患者外周血白细胞计数则与CFU-GM呈正相关(r=0.61,P<0.01).提示患者血清IgG的异常增高可导致患者红系、粒单系造血干细胞的减少.它们的减少是SLE活动有价值的指标.     

重组人白细胞介素-1β对人红系、粒系造血祖细胞集落形成的影响

为探讨重组人白细胞介素-1β(rhIL-1β)对人红系、粒系造血祖细胞的作用,采用96孔板微量培养法在体外进行培养。在培养中加入不同浓度的rhIL-β1(0～5ug/mL)后,观察BFU-E、CFU-E及CFU-GM的集落形成。结果加入不同浓度的IL-1β后,BFU-E、CFU-E的集落形成均受到抑制,且呈剂量依赖性,在IL-1β剂量为0.1和0.5μg/mL时,抑制作用更明显(JP<0.005,0.05),而IL-1β对CFU-GM的集落形成无明显影响。结果表明,IL-1β对红系造血祖细胞(BFU-E和CFU-E)影响的研究有助于解释某些慢性疾病性贫血(如类风湿性关节炎伴贫血等)的发生机制,提示IL-1β单克隆抗体有可能用于治疗慢性疾病性贫血。     

骨髓增生异常综合征及慢性原因不明性粒细胞减少症患者骨髓CFU—GM和CFU—F的初步观察

利用人类骨髓粒一单核系祖细胞集落(CFU—GM)和成纤维细胞集落(CFU—F)体外检测技术,比较观察32例骨髓增生异常综合征(MDS)和11例慢性原因不明性粒细胞减少症(CIN)患者的造血改变。结果表明,MDS 和 CIN 的造血状态存在显著区别,69%的 MDS 患者 CFU—GM集落显著受抑,集簇、簇/落比值明显升高;其 CFU—F 集落亦存在明显缺陷。而 CIN 患者的上述指标均类似于正常。这提示体外集落检测技术有助于 MDS 和 CIN 的鉴别。此外,CFU—GM 系列培养对 MDS 患者具有一定预后价直。     

Stimulating effect of catechin, an active component of Spatholobus suberectus Dunn, on bioactivity of hematopoietic growth factor

Background Hematopoietic growth factor （HGF） is indispensable to hematopoiesis in the body. The proliferation and differentiation of hematopoietic cells must rely on the existence and stimulation of HGF. This study investigated the effect of catechin, an active component extracted from Spatholobus suberectus Dunn （SSD）, on bioactivity of granulocyte-macrophage colony-stimulating activity （GM-CSA）, burst-promoting activity （BPA） and megakaryocyte colony-stimulating activity （MK-CSA） in spleen condition medium （SPCM） of mice to clarify the hematopoietic mechanism of catechin and SSD.
Methods Spleen cells of mice were separated and spleen condition medium （SPCM） was prepared from spleen cell culture. Bone marrow cells of mice were separated and cultured in a culture system including 10% （v/v） SPCM （induced by catechin in vivo or ex vivo） for 6 days. Granulocyte-macrophage colony forming units （CFU-GM）, erythrocyte burst-colony-forming units （BFU-E） and megakaryocyte colony-forming units （CFU-Meg） formation were employed to assay the effects of different treatment on the bioactivity of GM-CSA, BPA and MK-CSA in SPCM.
Results SPCM induced by 100 mg/L catechin ex vivo could promote the growth of CFU-GM, BFU-E and CFU-Meg, which indicated that catechin could stimulate the production of GM-CSA, BPA and MK-CSA in SPCM. SPCM prepared at the fourth day of spleen cell culture showed the best stimulating activity. The bioactivity of GM-CSA, BPA and MK-CSA in the SPCM prepared after intraperitoneally injecting catechin into mice was also increased. The number of CFU-GM, BFU-E and CFU-Meg gradually increased as the dose of catechin increased and the time of administration prolonged. CFU-GM, BFU-E and CFU-Meg of the high-dose catechin group were significantly higher than those of the control group （P〈0.01） and reached the maximum at the seventh day after administration.
Conclusions This study suggests that catechin extracted from the active acetic ether part of Spatholo     

The murine submandibular gland conditioned medium induce the development of CFU-GM and CFU-meg]

OBJECTIVE: Our purpose is to determine whether murine submandibular gland produce hematopoietic growth factors or not and which hematopoietic growth factor are produced by murine submandibular gland. METHODS: By using the techniques of culture of hematopoietic progenitor cells(CFU-GM, CFU-Meg) ex vivo, flow-cytometry, the effects of murine submandibular gland conditioned medium(SGCM) on the development of CFU-GM and CFU-Meg in mice was studied. RESULTS: SGCM can stimulate the development of CFU-GM and CFU-Meg (without any exogeneous HGF), almost no colony in control (without any exogeneous HGF and SGCM); the promoting activity of male SGCM is higher than female SGCM's in augmenting colony formation of CFU-Meg (P < 0.05), there is no difference of CFU-GM(P > 0.05). The stimulating activity of anemic mice SGCM is higher normal mice SGCM's (P < 0.05). IL-3 can collaborate with female SGCM to stimulate proliferation of CFU-Meg. SGCM can promote bone morrow cell entiring the active proliferative phase(S/G2). CONCLUSION: Submandibular gland can stimulate the development of CFU-GM and CFU-Meg by secreting hematopoietic growth factor-like activities. Our study provide the experimental evidences for clarifying the relationship between submandibular gland and hematopoiesis.     

当归多糖对人粒单系祖细胞和粒系白血病细胞株增殖分化的实验研究

目的：研究当归多糖(APS)对人粒单系造血祖细胞(CFU—GM)和急性早幼粒白血病细胞株(HL-60)增殖分化的影响。方法：采用造血细胞体外培养，形态学观察，流式细胞术和免疫细胞化学等实验血液学技术。结果：APS对正常CFU-GM的体外增殖有显著刺激作用；而对HL-60细胞的增殖却有明显的抑制作用；APS可能通过阻止HL-60细胞从静止期进入增殖周期，抑制DNA的合成等途径来抑制细胞增殖；APS可能诱导HL-60细胞发生凋亡。结论：APS有可能成为既能促进正常造血，又能抑制白血病等肿瘤细胞增殖，并诱导其凋亡或分化的天然诱导剂。     

电离辐射对胎鼠皮肤间充质干细胞支持骨髓粒系造血作用的影响

目的：观察不同剂量的X射线照射对体外培养的胎鼠皮肤间充质干细胞(MSCs)支持造血细胞增殖作用的影响,为提高造血干细胞体外扩增效率提供一种更为有效的方法,进而为造血干细胞移植提供一个新的途径。 方法：分别用不同剂量的X射线照射培养的胎鼠皮肤MSCs层,然后将骨髓细胞种植于该细胞层上,扩增后不同时间(0~12 d)进行骨髓CFU-GM集落培养,同时取经X射线照射的皮肤MSCs的上清液进行骨髓CFU-GM、CFU-E及BFU-E培养,观察射线对胎鼠皮肤MSCs造血支持作用的影响。 结果：6、8和10 Gy剂量X射线照射胎鼠皮肤MSCs与骨髓细胞共同作用7 d时,骨髓祖细胞集落显著增加,其中6 Gy组增加最为明显,CFU-GM是0 Gy组的2.17倍。6、8和10 Gy剂量X射线照射培养皮肤的上清液体外亦可刺激骨髓CFU-GM、CFU-E、BFU-E的生长,与0 Gy组比较差异均有显著性(P<0.05)。其中6 Gy组增加最为明显,分别达0 Gy组的1.81倍、3.94倍和3.51倍,集落亦明显加大。 结论：一定剂量X射线照射胎鼠皮肤MSCs,其体外支持造血的作用增强,无论照射后的单纯MSCs细胞层还是上清液都可使骨髓细胞集落数增多。     

Colony-stimulating activities of serum from patients with severe aplastic anemia

ＣｏｌｏｎｙｓｔｉｍｕｌａｔｉｎｇａｃｔｉｖｉｔｉｅｓｏｆｓｅｒｕｍｆｒｏｍｐａｔｉｅｎｔｓｗｉｔｈｓｅｖｅｒｅａｐｌａｓｔｉｃａｎｅｍｉａＺｈｅｎｇＹｉｚｈｏｕ郑以州，ＣｈｕＹｕｌｉｎ储榆林，ＳｈａｏＺｏｎｇｈｏｎｇ邵宗鸿，ＷａｎｇＹｏｎｇｇｕｉ...