1.Frequent association of malignant effusions in plasmablastic lymphoma:a single‑institutional experience of nine cases in Taiwan
Bo‑Jung CHEN ; Yu‑Ting KUO ; Sheng‑Tsung CHANG ; Khin‑Than WIN ; Shang‑Wen CHEN ; Sheng‑Yen HSIAO ; Yin‑Hsun FENG ; Yen‑Chuan HSIEH ; Shih‑Sung CHUANG
Blood Research 2025;60():22-
Purpose:
Plasmablastic lymphoma (PBL) is a rare, aggressive lymphoma that is characterized by terminal B-cell differ‑ entiation. In the West, PBL usually occurs in patients with immunodeficiencies, particularly those induced by human immunodeficiency virus (HIV) infection. We investigated the clinicopathological features of PBL at a single institute in Taiwan, where HIV infection is rare.
Methods:
This retrospective chart review identified PBL cases that were treated at a single institute in southern Tai‑ wan between 2008 and 2024.
Results:
We identified nine patients (four males and five females; median age 71 years). Of the eight patients tested for HIV, only one tested positive. Pathologically, the tumors showed plasmablastic morphology and immunopheno‑ type, and three (33%) cases tested positive for Epstein–Barr virus. Six (67%) patients presented with Stage IV disease, including five (56%) with malignant effusion. Six patients were treated with chemotherapy and the remaining three received only supportive care. During a median follow-up of 10 months, five patients died of progressive disease, two died of unrelated diseases, and two were alive with PBL relapse.
Conclusion
In Taiwan, PBL constitutes a rare and aggressive clinical condition and is frequently associated with malignant effusion. In contrast to Western patients, the PBL in most patients from Taiwan was unrelated to HIV infection.
2.Frequent association of malignant effusions in plasmablastic lymphoma:a single‑institutional experience of nine cases in Taiwan
Bo‑Jung CHEN ; Yu‑Ting KUO ; Sheng‑Tsung CHANG ; Khin‑Than WIN ; Shang‑Wen CHEN ; Sheng‑Yen HSIAO ; Yin‑Hsun FENG ; Yen‑Chuan HSIEH ; Shih‑Sung CHUANG
Blood Research 2025;60():22-
Purpose:
Plasmablastic lymphoma (PBL) is a rare, aggressive lymphoma that is characterized by terminal B-cell differ‑ entiation. In the West, PBL usually occurs in patients with immunodeficiencies, particularly those induced by human immunodeficiency virus (HIV) infection. We investigated the clinicopathological features of PBL at a single institute in Taiwan, where HIV infection is rare.
Methods:
This retrospective chart review identified PBL cases that were treated at a single institute in southern Tai‑ wan between 2008 and 2024.
Results:
We identified nine patients (four males and five females; median age 71 years). Of the eight patients tested for HIV, only one tested positive. Pathologically, the tumors showed plasmablastic morphology and immunopheno‑ type, and three (33%) cases tested positive for Epstein–Barr virus. Six (67%) patients presented with Stage IV disease, including five (56%) with malignant effusion. Six patients were treated with chemotherapy and the remaining three received only supportive care. During a median follow-up of 10 months, five patients died of progressive disease, two died of unrelated diseases, and two were alive with PBL relapse.
Conclusion
In Taiwan, PBL constitutes a rare and aggressive clinical condition and is frequently associated with malignant effusion. In contrast to Western patients, the PBL in most patients from Taiwan was unrelated to HIV infection.
3.Frequent association of malignant effusions in plasmablastic lymphoma:a single‑institutional experience of nine cases in Taiwan
Bo‑Jung CHEN ; Yu‑Ting KUO ; Sheng‑Tsung CHANG ; Khin‑Than WIN ; Shang‑Wen CHEN ; Sheng‑Yen HSIAO ; Yin‑Hsun FENG ; Yen‑Chuan HSIEH ; Shih‑Sung CHUANG
Blood Research 2025;60():22-
Purpose:
Plasmablastic lymphoma (PBL) is a rare, aggressive lymphoma that is characterized by terminal B-cell differ‑ entiation. In the West, PBL usually occurs in patients with immunodeficiencies, particularly those induced by human immunodeficiency virus (HIV) infection. We investigated the clinicopathological features of PBL at a single institute in Taiwan, where HIV infection is rare.
Methods:
This retrospective chart review identified PBL cases that were treated at a single institute in southern Tai‑ wan between 2008 and 2024.
Results:
We identified nine patients (four males and five females; median age 71 years). Of the eight patients tested for HIV, only one tested positive. Pathologically, the tumors showed plasmablastic morphology and immunopheno‑ type, and three (33%) cases tested positive for Epstein–Barr virus. Six (67%) patients presented with Stage IV disease, including five (56%) with malignant effusion. Six patients were treated with chemotherapy and the remaining three received only supportive care. During a median follow-up of 10 months, five patients died of progressive disease, two died of unrelated diseases, and two were alive with PBL relapse.
Conclusion
In Taiwan, PBL constitutes a rare and aggressive clinical condition and is frequently associated with malignant effusion. In contrast to Western patients, the PBL in most patients from Taiwan was unrelated to HIV infection.
4.Mechanism of Naoxintong Capsules in treatment of rats with multiple cerebral infarctions and myocardial injury based on HIF-1α/VEGF pathway.
Xiao-Lu ZHANG ; Jin-Feng SHANG ; Yin-Lian WEN ; Gui-Jin-Feng HUANG ; Bo-Hong WANG ; Wan-Ting WEI ; Wen-Bin CHEN ; Xin LIU
China Journal of Chinese Materia Medica 2025;50(7):1889-1899
This study aims to explore whether Naoxintong Capsules improve multiple cerebral infarctions and myocardial injury via promoting angiogenesis, thereby exerting a simultaneous treatment effect on both the brain and heart. Male SD rats were randomly divided into six groups: sham-operated group, model group, high-dose, medium-dose, and low-dose groups of Naoxintong Capsules(440, 220, and 110 mg·kg~(-1)), and nimodipine group(10.8 mg·kg~(-1)). Rat models of multiple cerebral infarctions were established by injecting autologous thrombus, and samples were collected and tested seven days after modeling. Evaluations included multiple cerebral infarction model assessments, neurological function scores, grip strength tests, and rotarod tests, so as to evaluate neuromotor functions. Morphological structures of brain and heart tissue were observed using hematoxylin-eosin(HE) staining, Nissl staining, and Masson staining. Network pharmacology was employed to screen the mechanisms of Naoxintong Capsules in improving multiple cerebral infarctions and myocardial injury. Neuronal and myocardial cell ultrastructures were observed using transmission electron microscopy. Apoptosis rate in brain neuronal cells was detected by TdT-mediated dUTP nick end labeling(TUNEL) staining, and reactive oxygen species(ROS) levels in myocardial cells were measured. Immunofluorescence was used to detect the expression of platelet endothelial cell adhesion molecule-1(CD31), antigen identified by monoclonal antibody Ki67(Ki67), hematopoietic progenitor cell antigen CD34(CD34), and hypoxia inducible factor-1α(HIF-1α) in brain and myocardial tissue. Western blot, and real-time quantitative polymerase chain reaction(RT-qPCR) were used to detect the expression of HIF-1α, vascular endothelial growth factor(VEGF), vascular endothelial growth factor receptor 2(VEGFR2), sarcoma(Src), basic fibroblast growth factor(bFGF), angiopoietin-1(Ang-1), and TEK receptor tyrosine kinase(Tie-2). Compared with the model group, the medium-dose group of Naoxintong Capsules showed significantly lower neurological function scores, increased grip strength, and prolonged time on the rotarod. Pathological damage in brain and heart tissue was reduced, with increased and more orderly arranged mitochondria in neurons and cardiomyocytes. Apoptosis in brain neuronal cells was decreased, and ROS levels in cardiomyocytes were reduced. The microvascular density and endothelial cells of new blood vessels in brain and heart tissue increased, with increased overlapping regions of CD31 and Ki67 expression. The relative protein and mRNA expression levels of HIF-1α, VEGF, VEGFR2, Src, Ang-1, Tie-2, and bFGF were elevated in brain tissue and myocardial tissue. Naoxintong Capsules may improve multiple cerebral infarctions and myocardial injury by mediating HIF-1α/VEGF expression to promote angiogenesis.
Animals
;
Male
;
Drugs, Chinese Herbal/administration & dosage*
;
Rats, Sprague-Dawley
;
Rats
;
Cerebral Infarction/genetics*
;
Hypoxia-Inducible Factor 1, alpha Subunit/genetics*
;
Vascular Endothelial Growth Factor A/genetics*
;
Capsules
;
Signal Transduction/drug effects*
;
Humans
;
Brain/metabolism*
;
Myocardium/metabolism*
;
Apoptosis/drug effects*
5.Overall strategy for development and application of core outcome set of traditional Chinese medicine.
Jun-Hua ZHANG ; Bo PANG ; Yu-Yun LI ; Hui-Zhong ZHU ; Feng-Wen YANG ; Bo-Li ZHANG
China Journal of Chinese Materia Medica 2025;50(13):3506-3512
The scientific and standardized evaluation of clinical efficacy of traditional Chinese medicine(TCM) is the core requirement for promoting the high-quality development of TCM. Building a recognized evaluation outcome system that conforms to the clinical efficacy characteristics of TCM is a key fundamental issue in the production and transformation of clinical evidence in TCM. In response to the heterogeneity of evaluation outcomes and core issues such as "western law in the middle", the research on the core outcome set of TCM(COS-TCM) has undergone more than ten years of exploration and practice. Its methodological system has continued to deepen under the coordinated development of theoretical basis, technical methods, platform support, and talent team, achieving an important leap from early introduction to standardized system construction and entering a new stage of systematic development. However, the overall research scale, quality, and the translation and application of research results in COS-TCM are still insufficient. In response to the opportunities and challenges of the new development stage, this article systematically reviews the development history and research status of COS-TCM, clarifies the basic principles of "international standards + TCM characteristics" and the key tasks of "selection, improvement, and creation", and proposes a three-step development path of "exploration and research, standard development, and regulatory transformation" to promote the standardization, systematization, and scientific development of related research. To ensure the effective implementation of research results, key promotion strategies such as upgrading research platforms, strengthening support systems, and optimizing collaborative mechanisms have been planned to drive COS-TCM to better serve clinical research, evidence translation, and new drug review.
Medicine, Chinese Traditional/methods*
;
Humans
;
Drugs, Chinese Herbal/standards*
6.Clinical study on the effectiveness of bone acupuncture for alleviating pain and improving function in patients with degenerative lumbar spinal stenosis.
Chang-Xiao HAN ; Min-Shan FENG ; Jing-Hua GAO ; Xun-Lu YIN ; Guang-Wei LIU ; Hai-Bao WEN ; Jing LI ; Bo-Chen PENG ; Li-Guo ZHU
China Journal of Orthopaedics and Traumatology 2025;38(2):152-156
OBJECTIVE:
To assess the effectiveness of bone acupuncture in improving pain and function in degenerative lumbar spinal stenosis (DLSS) and compare it with Jiaji acupuncture.
METHODS:
From January to December 2023, 80 DLSS patients were treated with acupuncture and divided into bone acupuncture and Jiaji acupuncture groups. Among them, 40 patients in the bone acupuncture group included 15 males and 25 females, with a mean age of (60.60±6.98) years old;anthor 40 patients in the Jiaji acupuncture group included 16 males and 24 females, with a mean age of (61.48±9.55) years old. The Roland Morris disability questionnaire(RMDQ), walking distance, visual analogue scale(VAS), and the MOS item short from health survey(SF-36) of two groups at baseline, 2 weeks, 4 weeks, and 12 weeks post-treatment were compared.
RESULTS:
Eighty patients were followed up for 3 to 5 months with an average of (3.62±0.59) months. There was no significant differences in general data and the scores before treatment between two groups(P>0.05). The RMDQ scores in both groups decreased significantly at 2, 4 and 12 weeks after treatment compared with before treatment(P<0.05), at each time point after treatment, the decrease was more significant in the bone acupuncture group than in the Jiaji acupuncture group(P<0.05). The VAS of waist and leg in both groups was significantly lower at 2, 4 and 12 weeks after treatment that before treatment(P<0.05). At all time points after treatment, the waist VAS in the bone acupuncture group was reduced more significant than in the Jiaji acupuncture group(P<0.05);there was no significant difference in leg VAS at 2 and 12 weeks after treatment between two groups(P>0.05), the improvement was more significant in the bone acupuncture group in the 4 weeks after treatment than in the Jiaji acupuncture group. The SF-36 scores in both groups were significantly higher at 2, 4, and 12 weeks after treatment than before treatment(P<0.05);the SF-36 score raised more significant in the bone acupuncture group than in the Jiaji acupunture group(P<0.05). No significant difference in the walking distance between two groups at 2 weeks after treatment(P>0.05);the walking distance in the bone acupuncture group was significantly higher than that in the Jiaji acupuncture group at 4 and 12 weeks after treatment(P<0.05).
CONCLUSION
Bone-penetrating acupuncture moderately improves functional impairment, pain, and quality of life in patients with DLSS, showing better efficacy than Jiaji acupuncture.
Humans
;
Female
;
Male
;
Middle Aged
;
Acupuncture Therapy/methods*
;
Spinal Stenosis/physiopathology*
;
Aged
;
Lumbar Vertebrae/physiopathology*
;
Pain Management
7.Effects of Yishen Yangsui formula() on pyroptosis in the spinal cord tissue in rats with degenerative cervical myelopathy.
Guo-Liang MA ; He YIN ; Bo XU ; Min-Shan FENG ; Dan ZHANG ; Dian ZHANG ; Xiao-Kuan QIN ; Li-Guo ZHU ; Bo-Wen YANG ; Xin CHEN
China Journal of Orthopaedics and Traumatology 2025;38(5):532-539
OBJECTIVE:
To preliminarily investigate the effects and mechanism of action of Yishen Yangsui Formula (, YSYSF)on the recovery of neurological function in rats with degenerative cervical myelopathy.
METHODS:
Fifty adult SD female rats were randomly divided into control group, sham group, model group, YSYSF group and positive drug group by using randomized numerical table method. In the model group, YSYSF group and positive drug group, polyvinyl alcohol acrylamide interpenetrating network hydrogel(water-absorbent swelling material) was used to construct a rat spinal cord chronic compression model. The sham group was implanted with the water-absorbent swelling material and then removed without causing spinal cord compression. The control group, the sham group and the model group were given equal amounts of saline by gavage, the group of YSYSF was given Chinese herbal medicine soup by gavage 9.1 g·kg-1 once a day, and the positive drug group was given tetrahexylsalicylglucoside sodium monosialate ganglioside by intraperitoneal injection 4.2 mg·kg-1 once a day. The motor function of the rats was assessed by the BBB method after 1, 3, 7, and 14 d of drug administration. The spinal cord tissues were taken from rats executed 14 d after drug administration, and the morphological changes of the spinal cord compression site were observed by HE staining, and the expression levels of Caspase-1, GSDMD, NLRP3, PYCARD, IL-1β, and IL-18 were detected in the area of spinal cord injury by Western blot method.
RESULTS:
The BBB scores of the control group and the sham group were normal at all time points after modeling, which were higher than the BBB scores of the model group, the YSYSF, and the positive drug group (P<0.05). From the 3rd day after gavage, at all time points, the BBB scores of rats in the YSYSF group and the positive drug group were higher than those of rats in the model group (P<0.05). The staining pattern of HE spinal cord tissue was normal in the control group and the sham group, and the HE spinal cord in the model group was severely damaged with a large number of neuron deaths, whereas the damage to the spinal cord and neuron cells was reduced in the YSYSF group and the positive drug group. The expression levels of caspase-1, GSDMD, NLRP3, PYCARD, IL-1β and IL-18 in the spinal cord of the model group were significantly higher than those of the sham group (P<0.0001), and the expression levels of caspase-1, GSDMD, NLRP3, PYCARD, IL-1β, and IL-18 in the YSYSF group and the drug group were significantly lower than those in the model group (P<0.05).
CONCLUSION
YSYSF can improve the motor function of rats with degenerative cervical spinal cord disease, alleviate the pathological changes, and promote the recovery of spinal cord neurological function. The specific mechanism may be related to the inhibition of the activation of inflammatory vesicles NLRP3 and PYCARD, the reduction of the release of inflammatory factors IL-1β and IL-18, the reduction of the expression of caspase-1 and GSDMD, the reduction of cellular death, and the inhibition of inflammatory response.
Animals
;
Female
;
Drugs, Chinese Herbal/administration & dosage*
;
Rats
;
Rats, Sprague-Dawley
;
Pyroptosis/drug effects*
;
Spinal Cord/pathology*
;
NLR Family, Pyrin Domain-Containing 3 Protein
;
Spinal Cord Diseases/drug therapy*
;
Interleukin-1beta/metabolism*
8.Clinical study of the lower limb constitutional alignment restoration in patients undergoing robotic-assisted functionally aligned total knee arthroplasty.
Heng ZHANG ; Yu CHEN ; Bo-Wen LI ; Feng QIAN ; Jian-Sheng ZHOU
China Journal of Orthopaedics and Traumatology 2025;38(10):994-1000
OBJECTIVE:
To compare and analyze the early clinical efficacy of robotic-assisted functionally aligned total knee arthroplasty (RFA-TKA) and manual mechanically aligned total knee arthroplasty (MMA-TKA).
METHODS:
A retrospective analysis was conducted on 58 patients with end-stage knee osteoarthritis who underwent total knee arthroplasty (TKA) between February 2024 and January 2025. According to the different surgical methods, the patients were divided into the RFA-TKA group and the MMA-TKA group.There were 26 patients in the RFA-TKA group, including 7 males and 19 females, aged from 58 to 80 years old with an average of (69.08±5.93) years old;robotic-assisted functional alignment was adopted in this group. The MMA-TKA group consisted of 32 patients, including 9 males and 23 females, aged from 53 to 78 years old with an average of (66.59±7.76) years old;manual mechanical alignment was used in this group. Surgical indicators of the two groups were compared, including operation time, hemoglobin loss, and soft tissue release. Postoperative clinical outcomes were evaluated using Knee Society score-the knee dcore (KSS-K) and the visual analogue scale (VAS) for knee pain. Postoperative radiological measurements micluded, the hip-knee-ankle (HKA) angle, mechanical lateral distal femoral angle (mLDFA), and medial proximal tibial angle (MPTA) were measured.
RESULTS:
All patients were followed up for more than 3 months. There was no statistically significant difference in the operation time between two groups (P>0.05). The hemoglobin loss in the RFA-TKA group on the first day after surgery was (5.08±4.07) g·L-1, which was less than that of the MMA-TKA group (14.03±12.49) g·L-1, and the difference was statistically significant (P<0.05). The number of patients who underwent soft tissue release in the RFA-TKA group was 5 cases, which was less than 32 cases in the MMA-TKA group, and the difference was statistically significant (P<0.05). At 3 months after surgery, the HKA angle (177.71±1.05)°, mLDFA (88.30±0.64)° and MPTA (87.53±1.47)° of the RFA-TKA group were all smaller than those of the MMA-TKA group (179.19±0.57)°, (89.14±0.59)° and(89.27±0.62)° respectively, with statistically significant differences (all P<0.05). The KSS-K of the RFA-TKA group was (92.50±3.64) points, which was higher than that of the MMA-TKA group(86.22±3.38) points, and the difference was statistically significant(P<0.05). For the VAS score of knee pain during walking, the RFA-TKA group (0.31±0.62) points was lower than the MMA-TKA group (1.03±1.12) points, and the difference was statistically significant (P<0.05).
CONCLUSION
Domestic robot-assisted functionally aligned TKA effectively restores the constitutional alignment of the lower limb, reduces the need for soft tissue release, minimizes intraoperative blood loss, alleviates postoperative pain, and achieve superior early clinical outcomes.
Humans
;
Male
;
Female
;
Arthroplasty, Replacement, Knee/methods*
;
Aged
;
Middle Aged
;
Aged, 80 and over
;
Retrospective Studies
;
Robotic Surgical Procedures/methods*
;
Osteoarthritis, Knee/physiopathology*
;
Lower Extremity/physiopathology*
9.Protective effect of sub-hypothermic mechanical perfusion combined with membrane lung oxygenation on a yorkshire model of brain injury after traumatic blood loss.
Xiang-Yu SONG ; Yang-Hui DONG ; Zhi-Bo JIA ; Lei-Jia CHEN ; Meng-Yi CUI ; Yan-Jun GUAN ; Bo-Yao YANG ; Si-Ce WANG ; Sheng-Feng CHEN ; Peng-Kai LI ; Heng CHEN ; Hao-Chen ZUO ; Zhan-Cheng YANG ; Wen-Jing XU ; Ya-Qun ZHAO ; Jiang PENG
Chinese Journal of Traumatology 2025;28(6):469-476
PURPOSE:
To investigate the protective effect of sub-hypothermic mechanical perfusion combined with membrane lung oxygenation on ischemic hypoxic injury of yorkshire brain tissue caused by traumatic blood loss.
METHODS:
This article performed a random controlled trial. Brain tissue of 7 yorkshire was selected and divided into the sub-low temperature anterograde machine perfusion group (n = 4) and the blank control group (n = 3) using the random number table method. A yorkshire model of brain tissue injury induced by traumatic blood loss was established. Firstly, the perfusion temperature and blood oxygen saturation were monitored in real-time during the perfusion process. The number of red blood cells, hemoglobin content, NA+, K+, and Ca2+ ions concentrations and pH of the perfusate were detected. Following perfusion, we specifically examined the parietal lobe to assess its water content. The prefrontal cortex and hippocampus were then dissected for histological evaluation, allowing us to investigate potential regional differences in tissue injury. The blank control group was sampled directly before perfusion. All statistical analyses and graphs were performed using GraphPad Prism 8.0 Student t-test. All tests were two-sided, and p value of less than 0.05 was considered to indicate statistical significance.
RESULTS:
The contents of red blood cells and hemoglobin during perfusion were maintained at normal levels but more red blood cells were destroyed 3 h after the perfusion. The blood oxygen saturation of the perfusion group was maintained at 95% - 98%. NA+ and K+ concentrations were normal most of the time during perfusion but increased significantly at about 4 h. The Ca2+ concentration remained within the normal range at each period. Glucose levels were slightly higher than the baseline level. The pH of the perfusion solution was slightly lower at the beginning of perfusion, and then gradually increased to the normal level. The water content of brain tissue in the sub-low and docile perfusion group was 78.95% ± 0.39%, which was significantly higher than that in the control group (75.27% ± 0.55%, t = 10.49, p < 0.001), and the difference was statistically significant. Compared with the blank control group, the structure and morphology of pyramidal neurons in the prefrontal cortex and CA1 region of the hippocampal gyrus were similar, and their integrity was better. The structural integrity of granulosa neurons was destroyed and cell edema increased in the perfusion group compared with the blank control group. Immunofluorescence staining for glail fibrillary acidic protein and Iba1, markers of glial cells, revealed well-preserved cell structures in the perfusion group. While there were indications of abnormal cellular activity, the analysis showed no significant difference in axon thickness or integrity compared to the 1-h blank control group.
CONCLUSIONS
Mild hypothermic machine perfusion can improve ischemia and hypoxia injury of yorkshire brain tissue caused by traumatic blood loss and delay the necrosis and apoptosis of yorkshire brain tissue by continuous oxygen supply, maintaining ion homeostasis and reducing tissue metabolism level.
Animals
;
Perfusion/methods*
;
Disease Models, Animal
;
Brain Injuries/etiology*
;
Swine
;
Male
;
Hypothermia, Induced/methods*
10.The Enhancing Effects and Underlying Mechanism of Ionizing Radiation on Adipogenic Differentiation of Mesenchymal Stem Cells via Regulating Oxidative Stress Pathway.
Fu-Hao YU ; Bo-Feng YIN ; Pei-Lin LI ; Xiao-Tong LI ; Jia-Yi TIAN ; Run-Xiang XU ; Jie TANG ; Xiao-Yu ZHANG ; Wen-Jing ZHANG ; Heng ZHU ; Li DING
Journal of Experimental Hematology 2025;33(1):246-254
OBJECTIVE:
To investigate the effects and underlying mechanism of ionizing radiation on the adipogenic of mesenchymal stem cells (MSCs).
METHODS:
Mouse MSCs were cultured in vitro and treated with 2 Gy and 6 Gy radiation with 60Co, and the radiation dose rate was 0.98 Gy/min. Bulk RNA-seq was performed on control and irradiated MSCs. The changes of adipogenic differentiation and oxidative stress pathways of MSC were revealed by bioinformatics analysis. Oil Red O staining was used to detect the adipogenic differentiation ability of MSCs in vitro, and real-time fluorescence quantitative PCR (qPCR) was used to detect the expression differences of key regulatory factors Cebpa, Lpl and Pparg after radiation treatment. At the same time, qPCR and Western blot were used to detect the effect of inhibition of Nrf2, a key factor of antioxidant stress pathway, on the expression of key regulatory factors of adipogenesis. Moreover, the species conservation of the irradiation response of human bone marrow MSCs and mouse MSC was determined by qPCR.
RESULTS:
Bulk RNA-seq suggested that ionizing radiation promotes adipogenic differentiation of MSCs and up-regulation of oxidative stress-related genes and pathways. The results of Oil Red O staining and qPCR showed that ionizing radiation promoted the adipogenesis of MSCs, with high expression of Cebpa, Lpl and Pparg, as well as oxidative stress-related gene Nrf2. Nrf2 pathway inhibitors could further enhance the adipogenesis of MSCs in bone marrow after radiation. Notably, the similar regulation of oxidative pathways and enhanced adipogenesis post irradiation were observed in human bone marrow MSCs. In addition, irradiation exposure led to up-regulated mRNA expression of interleukin-6 and down-regulated mRNA expression of colony stimulating factor 2 in human bone marrow MSCs.
CONCLUSION
Ionizing radiation promotes adipogenesis of MSCs in mice, and oxidative stress pathway participates in this effect, blocking Nrf2 further promotes the adipogenesis of MSCs. Additionally, irradiation activates oxidative pathways and promotes adipogenic differentiation of human bone marrow MSCs.
Mesenchymal Stem Cells/cytology*
;
Oxidative Stress/radiation effects*
;
Animals
;
Adipogenesis/radiation effects*
;
Mice
;
Radiation, Ionizing
;
Cell Differentiation/radiation effects*
;
Humans
;
NF-E2-Related Factor 2/metabolism*
;
PPAR gamma
;
Cells, Cultured

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