天津中医药大学第一附属医院/中医国家临床医学研究中心,天津市西青区昌凌路88号,300380
shzhx0604@163.com
收稿:2025-11-19,
修回:2026-04-13,
录用:2025-12-22,
纸质出版:2026-06-17
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范晨阳,闫理想,郝晓钢等.微残清方对急性髓系白血病模型小鼠骨髓苹果酸酶2介导的骨髓免疫代谢平衡的影响[J].中医杂志,2026,67(12):1315-1322.
FAN Chenyang,YAN Lixiang,HAO Xiaogang,et al.Effects of Weicanqing Formula (微残清方) on Malic Enzyme 2-Mediated Bone Marrow Immunemetabolic Homeostasis in Acute Myeloid Leukemia Model Mice[J].Journal of Traditional Chinese Medicine,2026,67(12):1315-1322.
范晨阳,闫理想,郝晓钢等.微残清方对急性髓系白血病模型小鼠骨髓苹果酸酶2介导的骨髓免疫代谢平衡的影响[J].中医杂志,2026,67(12):1315-1322. DOI: 10.13288/j.11-2166/r.2026.12.012.
FAN Chenyang,YAN Lixiang,HAO Xiaogang,et al.Effects of Weicanqing Formula (微残清方) on Malic Enzyme 2-Mediated Bone Marrow Immunemetabolic Homeostasis in Acute Myeloid Leukemia Model Mice[J].Journal of Traditional Chinese Medicine,2026,67(12):1315-1322. DOI: 10.13288/j.11-2166/r.2026.12.012.
目的
2
基于苹果酸酶2(ME2)介导的骨髓免疫代谢稳态探讨微残清方联合化疗治疗急性髓系白血病(AML)可能的作用机制。
方法
2
65只雄性C57BL/6N小鼠随机分为对照组、模型组、微残清方组、西药化疗组、微残清方联合化疗组,每组13只。除对照组外,其余四组小鼠于实验第1天尾静脉注射C1498细胞(每只约1×10
6
个)制备AML小鼠模型。实验第8天开始,西药化疗组及微残清方联合化疗组小鼠给予阿糖胞苷30 mg/(kg·d)皮下注射,每日1次,连续3天;微残清方组、微残清方联合化疗组小鼠均予以微残清方7.54 g/(kg·d)灌胃,每日1次,连续21天。各组分别于实验第1、7、14、21、28天检测小鼠血红蛋白(Hb)、白细胞计数(WBC);实验第28天取材,采用吉姆萨染色观察骨髓细胞形态学变化;流式细胞术检测各组小鼠骨髓T淋巴细胞亚群CD8
+
、CD4
+
、调节性T淋巴细胞(Treg)水平;采用可见分光光度法检测骨髓中谷氨酰胺(Gln)、烟酰胺腺嘌呤二核苷酸磷酸辅酶(NADP
+
)和烟
酰胺腺嘌呤二核苷酸磷酸(NADPH)含量;使用化学发光法检测骨髓中三磷酸腺苷(ATP)浓度;RT-qPCR法检测骨髓苹果酸酶2(
ME2
) mRNA表达水平;Western Blot法检测骨髓ME2蛋白表达水平。
结果
2
与对照组同时间比较,模型组小鼠第14、21、28天Hb水平均降低,第7、14、21、28天时小鼠WBC水平均升高(
P
<0.05);第28天时骨髓CD8
+
、CD8
+
/CD4
+
降低,骨髓Treg、ATP、Gln、NADP
+
、NADPH、
ME2
mRNA及其蛋白水平均升高(
P
<0.05)。与模型组同时间比较,西药化疗组和微残清方联合化疗组第14、21、28天时小鼠Hb水平均降低,第28天时WBC水平升高;微残清方联合化疗组小鼠骨髓CD8
+
水平升高,Treg水平降低,ATP、Gln、NADPH含量降低,
ME2
mRNA表达及其蛋白水平降低(
P
<0.05)。与西药化疗组同时间比较,第21、28天时微残清方联合化疗组Hb升高,第14、28天时WBC升高(
P
<0.05)。骨髓涂片病理显示,模型组骨髓细胞胞质可见代谢异常空泡的髓系原始细胞;西药化疗组和微残清方联合化疗组可见大量晚幼和杆状核粒细胞和极少量原始粒细胞。
结论
2
微残清方可能通过调节ME2水平抑制骨髓代谢能量竞争,重塑骨髓T淋巴细胞亚群分布,从而辅助西药化疗改善AML预后。
Objective
2
To
e
xplore the potential mechanism of
Weicanqing Formula
(微残清方, WF) combined with chemotherapy in treating acute myeloid leukemia (AML) based on malic enzyme 2 (ME2)-mediated bone marrow immune-metabolic homeostasis and .
Methods
2
Sixty-five male C57BL/6N mice were randomly divided into control group, model group, WF group, chemotherapy group, and the combination group (WF plus chemotherapy), with 13 mice per group. Except for the control group, mice were injected with C1498 cells (appro-ximately 1×10
6
cells per mouse) via the tail vein on day 1 to establish an AML model. Starting from day 8, mice in the chemotherapy group and the combination group were administered with cytarabine at 30 mg/(kg·d) via subcutaneous injection, once daily for 3 consecutive days; WF group and the combination group received WF at 7.54 g/(kg·d) by gavage, once daily for 21 consecutive days. On days 1, 7, 14, 21 and 28, hemoglobin (Hb) and white blood cell (WBC) levels were determined in each group. On day 28, Giemsa staining was used to observe morphological chan
ges in bone marrow cells. Flow cytometry was employed to detect the expression levels of bone marrow T lympthocyte subsets, including CD8
+
, CD4
+
, and regulatory T lymphocytes (Treg). The contents of glutamine (Gln), nicotinamide adenine dinucleotide phosphate (NADP⁺), and reduced nicotinamide adenine dinucleotide phosphate (NADPH) in bone marrow were determined using visible spectrophotometry. Adenosine triphosphate (ATP) concentration in bone marrow was measured by chemiluminescence assay. The mRNA expression of malic enzyme 2 (ME2) in bone marrow was detected by RT-qPCR, and the protein expression level of ME2 was determined by Western blotting.
Results
2
Compared to the control group, the model group showed decreased Hb levels on day 14, 21, and 28, and increased WBC levels on day 7, 14, 21, and 28 (
P
<0.05). On day 28, bone marrow CD8
+
and CD8
+
/CD4
+
levels decreased, while Treg cells, ATP, Gln, NADP
+
, NADPH,
ME2
mRNA, and their corresponding protein levels increased (
P
<0.05). Compared to the model group, the chemotherapy group and the combination group both exhibited reduced Hb level on day 14, 21 and 28, as well as the increased WBC level; the combination group showed increased CD8
+
level, decreased Treg, ATP, Gln, and NADPH content, as well as reduced
ME2
mRNA expression and protein levels (
P
<0.05). Compared to the chemotherapy group, the combination group showed significantly increased Hb level on days 21 and 28, and increased WBC level on day 28 (
P
<0.05). Bone marrow smear pathology revealed that, in the model group, myeloid blast cells exhibited cytoplasmic vacuoles indicative of abnormal metabolic activity. In contrast, both the chemotherapy group and the combination group showed large numbers of metamyelocytes and band neutrophils, with only a few immature granulocytic blast cells observed.
Conclusion
2
WF may improve the prognosis of AML when used as an adjunct to chemotherapy by modulating ME2 expression, inhibiting metabolic energy competition within the bone marrow microenvironment, and reshaping the distribution of T lymphocyte subsets in the bone marrow.
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