1.Corrigendum to: Cardioprotection via mitochondrial transplantation supports fatty acid metabolism in ischemia-reperfusion injured rat heart
Jehee JANG ; Ki-Woon KANG ; Young-Won KIM ; Seohyun JEONG ; Jaeyoon PARK ; Jihoon PARK ; Jisung MOON ; Junghyun JANG ; Seohyeon KIM ; Sunghun KIM ; Sungjoo CHO ; Yurim LEE ; Hyoung Kyu KIM ; Jin HAN ; Eun-A KO ; Sung-Cherl JUNG ; Jung-Ha KIM ; Jae-Hong KO
The Korean Journal of Physiology and Pharmacology 2024;28(4):391-391
2.Cardioprotection via mitochondrial transplantation supports fatty acid metabolism in ischemia-reperfusion injured rat heart
Jehee JANG ; Ki-Woon KANG ; Young-Won KIM ; Seohyun JEONG ; Jaeyoon PARK ; Jihoon PARK ; Jisung MOON ; Junghyun JANG ; Seohyeon KIM ; Sunghun KIM ; Sungjoo CHO ; Yurim LEE ; Hyoung Kyu KIM ; Jin HAN ; Eun-A KO ; Sung-Cherl JUNG ; Jung-Ha KIM ; Jae-Hong KO
The Korean Journal of Physiology and Pharmacology 2024;28(3):209-217
In addition to cellular damage, ischemia-reperfusion (IR) injury induces substantial damage to the mitochondria and endoplasmic reticulum. In this study, we sought to determine whether impaired mitochondrial function owing to IR could be restored by transplanting mitochondria into the heart under ex vivo IR states. Additionally, we aimed to provide preliminary results to inform therapeutic options for ischemic heart disease (IHD). Healthy mitochondria isolated from autologous gluteus maximus muscle were transplanted into the hearts of Sprague–Dawley rats damaged by IR using the Langendorff system, and the heart rate and oxygen consumption capacity of the mitochondria were measured to confirm whether heart function was restored. In addition, relative expression levels were measured to identify the genes related to IR injury. Mitochondrial oxygen consumption capacity was found to be lower in the IR group than in the group that underwent mitochondrial transplantation after IR injury (p < 0.05), and the control group showed a tendency toward increased oxygen consumption capacity compared with the IR group. Among the genes related to fatty acid metabolism, Cpt1b (p < 0.05) and Fads1 (p < 0.01) showed significant expression in the following order: IR group, IR + transplantation group, and control group. These results suggest that mitochondrial transplantation protects the heart from IR damage and may be feasible as a therapeutic option for IHD.
3.Extracorporeal Shockwave Therapy Alleviates Inflammatory Pain by Down-Regulating NLRP3Inflammasome in Experimental Chronic Prostatitis and Chronic Pelvic Pain Syndrome
Woong Jin BAE ; Dongho SHIN ; Jun Jie PIAO ; Soomin KIM ; Yong Sun CHOI ; Bong Hee PARK ; Hyun Jin JUNG ; Samuel SORKHI ; Saager CHAWLA ; Chung Woon CHEON ; Dae Up KANG ; Jong Tae CHOI ; Sang-Hyuck PARK ; Sae Woong KIM ; Mahadevan Raj RAJASEKARAN
The World Journal of Men's Health 2024;42(1):157-167
Purpose:
To evaluate the anti-inflammatory and antioxidative effects of extracorporeal shockwave therapy (ESWT) on prostatitis and explore the mechanism of alleviating pain.
Materials and Methods:
For in vitro testing, RWPE-1 cells were randomly divided into 5 groups: (1) RWPE-1 group (normal control), (2) LPS group (lipopolysaccharide inducing inflammation), (3) 0.1ESWT group (treated by 0.1 mJ/mm2 energy level), (4) 0.2ESWT group (treated by 0.2 mJ/mm2 energy level), and (5) 0.3ESWT group (treated by 0.3 mJ/mm2 energy level). After ESWT was administered, cells and supernatant were collected for ELISA and western blot. For in vivo testing, Sprague-Dawley male rats were randomly divided into 3 groups: (1) normal group, (2) prostatitis group, and (3) ESWT group (n=12 for each). Prostatitis was induced by 17 beta-estradiol and dihydrotestosterone (DHT) administration. Four weeks after ESWT, the pain index was assessed for all groups and prostate tissues were collected for immunohistochemistry, immunofluorescence, apoptosis analysis and, western blot.
Results:
Our in vitro studies showed that the optimal energy flux density of ESWT was 0.2 mJ/mm2. In vivo, ESWT ameliorated discomfort in rats with prostatitis and inflammation symptoms were improved. Compared to normal rats, overexpressed NLRP3 inflammasomes triggered apoptosis in rats with prostatitis and this was improved by ESWT. TLR4-NFκB pathway was overactive after experimental prostatitis, compared to normal and ESWT groups, and prostatitis induced alterations in BAX/BAK pathway were inhibited by ESWT.
Conclusions
ESWT improved CP/CPPS by reducing NLRP3 inflammasome and ameliorated apoptosis via inhibiting BAX/BAK pathway in a rat model. TLR4 may play a key role in bonding NLRP3 inflammasome and BAX/BAK pathways. ESWT might be a promising approach for the treatment of CP/CPPS.
4.Spinal Schwannoma Classification Based on the Presumed Origin With Preoperative Magnetic Resonance Images
Tae-Shin KIM ; Jae Hee KUH ; Junhoe KIM ; Woon Tak YUH ; Junghoon HAN ; Chang-Hyun LEE ; Chi Heon KIM ; Chun Kee CHUNG
Neurospine 2024;21(3):890-902
Objective:
Classification guides the surgical approach and predicts prognosis. However, existing classifications of spinal schwannomas often result in a high ‘unclassified’ rate. Here, we aim to develop a new comprehensive classification for spinal schwannomas based on their presumed origin. We compared the new classification with the existing classifications regarding the rate of ‘unclassified’. Finally, we assessed the surgical strategies, outcomes, and complications according to each type of the new classification.
Methods:
A new classification with 9 types was created by analyzing the anatomy of spinal nerves and the origin of significant tumor portions and cystic components in preoperative magnetic resonance images. A total of 482 patients with spinal schwannomas were analyzed to compare our new classification with the existing classifications. We defined ‘unclassified’ as the inability to classify a patient with spinal schwannoma using the classification criteria. Surgical approaches and outcomes were also aligned with our new classification.
Results:
Our classification uniquely reported no ‘unclassified’ cases, indicating full applicability. Also, the classification has demonstrated usefulness in predicting the surgical outcome with the approach planned. Gross total removal rates reached 88.0% overall, with type 1 and type 2 tumors at 95.3% and 96.0% respectively. The approach varied with tumor type, with laminectomy predominantly used for types 1, 2, and 9, and facetectomy with posterior fixation used for type 3 tumors.
Conclusion
The new classification for spinal schwannomas based on presumed origin is applicable to all spinal schwannomas. It could help plan a surgical approach and predict its outcome, compared with existing classifications.
5.Spinal Schwannoma Classification Based on the Presumed Origin With Preoperative Magnetic Resonance Images
Tae-Shin KIM ; Jae Hee KUH ; Junhoe KIM ; Woon Tak YUH ; Junghoon HAN ; Chang-Hyun LEE ; Chi Heon KIM ; Chun Kee CHUNG
Neurospine 2024;21(3):890-902
Objective:
Classification guides the surgical approach and predicts prognosis. However, existing classifications of spinal schwannomas often result in a high ‘unclassified’ rate. Here, we aim to develop a new comprehensive classification for spinal schwannomas based on their presumed origin. We compared the new classification with the existing classifications regarding the rate of ‘unclassified’. Finally, we assessed the surgical strategies, outcomes, and complications according to each type of the new classification.
Methods:
A new classification with 9 types was created by analyzing the anatomy of spinal nerves and the origin of significant tumor portions and cystic components in preoperative magnetic resonance images. A total of 482 patients with spinal schwannomas were analyzed to compare our new classification with the existing classifications. We defined ‘unclassified’ as the inability to classify a patient with spinal schwannoma using the classification criteria. Surgical approaches and outcomes were also aligned with our new classification.
Results:
Our classification uniquely reported no ‘unclassified’ cases, indicating full applicability. Also, the classification has demonstrated usefulness in predicting the surgical outcome with the approach planned. Gross total removal rates reached 88.0% overall, with type 1 and type 2 tumors at 95.3% and 96.0% respectively. The approach varied with tumor type, with laminectomy predominantly used for types 1, 2, and 9, and facetectomy with posterior fixation used for type 3 tumors.
Conclusion
The new classification for spinal schwannomas based on presumed origin is applicable to all spinal schwannomas. It could help plan a surgical approach and predict its outcome, compared with existing classifications.
6.Spinal Schwannoma Classification Based on the Presumed Origin With Preoperative Magnetic Resonance Images
Tae-Shin KIM ; Jae Hee KUH ; Junhoe KIM ; Woon Tak YUH ; Junghoon HAN ; Chang-Hyun LEE ; Chi Heon KIM ; Chun Kee CHUNG
Neurospine 2024;21(3):890-902
Objective:
Classification guides the surgical approach and predicts prognosis. However, existing classifications of spinal schwannomas often result in a high ‘unclassified’ rate. Here, we aim to develop a new comprehensive classification for spinal schwannomas based on their presumed origin. We compared the new classification with the existing classifications regarding the rate of ‘unclassified’. Finally, we assessed the surgical strategies, outcomes, and complications according to each type of the new classification.
Methods:
A new classification with 9 types was created by analyzing the anatomy of spinal nerves and the origin of significant tumor portions and cystic components in preoperative magnetic resonance images. A total of 482 patients with spinal schwannomas were analyzed to compare our new classification with the existing classifications. We defined ‘unclassified’ as the inability to classify a patient with spinal schwannoma using the classification criteria. Surgical approaches and outcomes were also aligned with our new classification.
Results:
Our classification uniquely reported no ‘unclassified’ cases, indicating full applicability. Also, the classification has demonstrated usefulness in predicting the surgical outcome with the approach planned. Gross total removal rates reached 88.0% overall, with type 1 and type 2 tumors at 95.3% and 96.0% respectively. The approach varied with tumor type, with laminectomy predominantly used for types 1, 2, and 9, and facetectomy with posterior fixation used for type 3 tumors.
Conclusion
The new classification for spinal schwannomas based on presumed origin is applicable to all spinal schwannomas. It could help plan a surgical approach and predict its outcome, compared with existing classifications.
7.Spinal Schwannoma Classification Based on the Presumed Origin With Preoperative Magnetic Resonance Images
Tae-Shin KIM ; Jae Hee KUH ; Junhoe KIM ; Woon Tak YUH ; Junghoon HAN ; Chang-Hyun LEE ; Chi Heon KIM ; Chun Kee CHUNG
Neurospine 2024;21(3):890-902
Objective:
Classification guides the surgical approach and predicts prognosis. However, existing classifications of spinal schwannomas often result in a high ‘unclassified’ rate. Here, we aim to develop a new comprehensive classification for spinal schwannomas based on their presumed origin. We compared the new classification with the existing classifications regarding the rate of ‘unclassified’. Finally, we assessed the surgical strategies, outcomes, and complications according to each type of the new classification.
Methods:
A new classification with 9 types was created by analyzing the anatomy of spinal nerves and the origin of significant tumor portions and cystic components in preoperative magnetic resonance images. A total of 482 patients with spinal schwannomas were analyzed to compare our new classification with the existing classifications. We defined ‘unclassified’ as the inability to classify a patient with spinal schwannoma using the classification criteria. Surgical approaches and outcomes were also aligned with our new classification.
Results:
Our classification uniquely reported no ‘unclassified’ cases, indicating full applicability. Also, the classification has demonstrated usefulness in predicting the surgical outcome with the approach planned. Gross total removal rates reached 88.0% overall, with type 1 and type 2 tumors at 95.3% and 96.0% respectively. The approach varied with tumor type, with laminectomy predominantly used for types 1, 2, and 9, and facetectomy with posterior fixation used for type 3 tumors.
Conclusion
The new classification for spinal schwannomas based on presumed origin is applicable to all spinal schwannomas. It could help plan a surgical approach and predict its outcome, compared with existing classifications.
8.The Multi-targeted Effect of Fascaplysin on the Proliferation and Dedifferentiation of Schwann Cells Inhibits Peripheral Nerve Degeneration by Blocking CDK4/6 and Androgen Receptor
Hyung-Joo CHUNG ; Ja-Eun KIM ; Youngbuhm HUH ; Jin San LEE ; So-Woon KIM ; Kiyong NA ; Jiwon KIM ; Seung Hyeun LEE ; Hiroyuki KONISHI ; Seung Geun YEO ; Dong Keon YON ; Dokyoung KIM ; Junyang JUNG ; Na Young JEONG
Experimental Neurobiology 2024;33(6):266-281
Peripheral neurodegenerative diseases induced by irreversible peripheral nerve degeneration (PND), such as diabetic peripheral neuropathy, have a high prevalence worldwide and reduce the quality of life. However, there is no agent effective against the irreversible PND. After peripheral nerve injury, Schwann cells play an important role in regulating PND. However, because PND involves multiple biochemical events in Schwann cells, a one-drug-single-target therapeutic strategy is not feasible for PND. Here, we suggested that fascaplysin (Fas), a compound with multiple targets (CDK4/6), could overcome these problems. Fas exerted a significant inhibitory effect on axonal degradation, demyelination, and Schwann cell proliferation and dedifferentiation during in vitro and ex vivo PND. To discover the most likely novel target for PND, a chemo-bioinformatics analysis predicted the other on-targets of Fas and identified androgen receptor (AR) which were involved in Schwann cell differentiation and proliferation.AR interacted with Fas, and nuclear import of the AR/Fas complex was inhibited in Schwann cells, altering the expression patterns of transcription factors during PND. Therefore, Fas may have therapeutic potential for irreversible peripheral neurodegenerative diseases.
9.The Multi-targeted Effect of Fascaplysin on the Proliferation and Dedifferentiation of Schwann Cells Inhibits Peripheral Nerve Degeneration by Blocking CDK4/6 and Androgen Receptor
Hyung-Joo CHUNG ; Ja-Eun KIM ; Youngbuhm HUH ; Jin San LEE ; So-Woon KIM ; Kiyong NA ; Jiwon KIM ; Seung Hyeun LEE ; Hiroyuki KONISHI ; Seung Geun YEO ; Dong Keon YON ; Dokyoung KIM ; Junyang JUNG ; Na Young JEONG
Experimental Neurobiology 2024;33(6):266-281
Peripheral neurodegenerative diseases induced by irreversible peripheral nerve degeneration (PND), such as diabetic peripheral neuropathy, have a high prevalence worldwide and reduce the quality of life. However, there is no agent effective against the irreversible PND. After peripheral nerve injury, Schwann cells play an important role in regulating PND. However, because PND involves multiple biochemical events in Schwann cells, a one-drug-single-target therapeutic strategy is not feasible for PND. Here, we suggested that fascaplysin (Fas), a compound with multiple targets (CDK4/6), could overcome these problems. Fas exerted a significant inhibitory effect on axonal degradation, demyelination, and Schwann cell proliferation and dedifferentiation during in vitro and ex vivo PND. To discover the most likely novel target for PND, a chemo-bioinformatics analysis predicted the other on-targets of Fas and identified androgen receptor (AR) which were involved in Schwann cell differentiation and proliferation.AR interacted with Fas, and nuclear import of the AR/Fas complex was inhibited in Schwann cells, altering the expression patterns of transcription factors during PND. Therefore, Fas may have therapeutic potential for irreversible peripheral neurodegenerative diseases.
10.The Multi-targeted Effect of Fascaplysin on the Proliferation and Dedifferentiation of Schwann Cells Inhibits Peripheral Nerve Degeneration by Blocking CDK4/6 and Androgen Receptor
Hyung-Joo CHUNG ; Ja-Eun KIM ; Youngbuhm HUH ; Jin San LEE ; So-Woon KIM ; Kiyong NA ; Jiwon KIM ; Seung Hyeun LEE ; Hiroyuki KONISHI ; Seung Geun YEO ; Dong Keon YON ; Dokyoung KIM ; Junyang JUNG ; Na Young JEONG
Experimental Neurobiology 2024;33(6):266-281
Peripheral neurodegenerative diseases induced by irreversible peripheral nerve degeneration (PND), such as diabetic peripheral neuropathy, have a high prevalence worldwide and reduce the quality of life. However, there is no agent effective against the irreversible PND. After peripheral nerve injury, Schwann cells play an important role in regulating PND. However, because PND involves multiple biochemical events in Schwann cells, a one-drug-single-target therapeutic strategy is not feasible for PND. Here, we suggested that fascaplysin (Fas), a compound with multiple targets (CDK4/6), could overcome these problems. Fas exerted a significant inhibitory effect on axonal degradation, demyelination, and Schwann cell proliferation and dedifferentiation during in vitro and ex vivo PND. To discover the most likely novel target for PND, a chemo-bioinformatics analysis predicted the other on-targets of Fas and identified androgen receptor (AR) which were involved in Schwann cell differentiation and proliferation.AR interacted with Fas, and nuclear import of the AR/Fas complex was inhibited in Schwann cells, altering the expression patterns of transcription factors during PND. Therefore, Fas may have therapeutic potential for irreversible peripheral neurodegenerative diseases.

Result Analysis
Print
Save
E-mail