1.Ethanol Extracts of Cornus alba Improve Benign Prostatic Hyperplasia by Inhibiting Prostate Cell Proliferation through Modulating 5 Alpha-Reductase/ Androgen Receptor Axis-Mediated Signaling
Byungdoo HWANG ; Jongyeob KIM ; Solbi PARK ; Hyun Joo CHUNG ; Hoon KIM ; Yung Hyun CHOI ; Wun-Jae KIM ; Soon Chul MYUNG ; Tae-Bin JEONG ; Kyung-Mi KIM ; Jae-Chul JUNG ; Min-Won LEE ; Jin Wook KIM ; Sung-Kwon MOON
The World Journal of Men's Health 2024;42(4):830-841
Purpose:
The aim of this study was to investigate the efficacy of ethanol extracts of Cornus alba (ECA) against benign prostatic hyperplasia (BPH) in vitro and in vivo.
Materials and Methods:
The prostate stromal cells (WPMY-1) and epithelial cells (RWPE-1) were used to examine the action mechanism of ECA in BPH in vitro. ECA efficacy was evaluated in vivo using a testosterone propionate (TP)-induced BPH rat model.
Results:
Treatment with ECA inhibited the proliferation of prostate cells by inducing G1-phase cell cycle arrest through the regulation of positive and negative proteins. Treatment of prostate cells with ECA resulted in alterations in the mitogen-activated protein kinases and protein kinase B signaling pathways. The transcriptional binding activity of the NF-κB motif was suppressed in both ECA-treated prostate cells. In addition, treatment with ECA altered the level of BPH-associated axis markers (5α-reductase, fibroblast growth factor-2, androgen receptor, epidermal growth factor, Bcl-2, and Bax) in both cell lines. Finally, the administration of ECA attenuated the enlargement of prostatic tissues in the TP-induced BPH rat model, accompanied by histology, immunoblot, and serum dihydrotestosterone levels.
Conclusions
These results demonstrated that ECA exerted beneficial effects on BPH both in vitro and in vivo and might provide valuable information in the development of preventive or therapeutic agents for improving BPH.
2.Ethanol Extracts of Cornus alba Improve Benign Prostatic Hyperplasia by Inhibiting Prostate Cell Proliferation through Modulating 5 Alpha-Reductase/ Androgen Receptor Axis-Mediated Signaling
Byungdoo HWANG ; Jongyeob KIM ; Solbi PARK ; Hyun Joo CHUNG ; Hoon KIM ; Yung Hyun CHOI ; Wun-Jae KIM ; Soon Chul MYUNG ; Tae-Bin JEONG ; Kyung-Mi KIM ; Jae-Chul JUNG ; Min-Won LEE ; Jin Wook KIM ; Sung-Kwon MOON
The World Journal of Men's Health 2024;42(4):830-841
Purpose:
The aim of this study was to investigate the efficacy of ethanol extracts of Cornus alba (ECA) against benign prostatic hyperplasia (BPH) in vitro and in vivo.
Materials and Methods:
The prostate stromal cells (WPMY-1) and epithelial cells (RWPE-1) were used to examine the action mechanism of ECA in BPH in vitro. ECA efficacy was evaluated in vivo using a testosterone propionate (TP)-induced BPH rat model.
Results:
Treatment with ECA inhibited the proliferation of prostate cells by inducing G1-phase cell cycle arrest through the regulation of positive and negative proteins. Treatment of prostate cells with ECA resulted in alterations in the mitogen-activated protein kinases and protein kinase B signaling pathways. The transcriptional binding activity of the NF-κB motif was suppressed in both ECA-treated prostate cells. In addition, treatment with ECA altered the level of BPH-associated axis markers (5α-reductase, fibroblast growth factor-2, androgen receptor, epidermal growth factor, Bcl-2, and Bax) in both cell lines. Finally, the administration of ECA attenuated the enlargement of prostatic tissues in the TP-induced BPH rat model, accompanied by histology, immunoblot, and serum dihydrotestosterone levels.
Conclusions
These results demonstrated that ECA exerted beneficial effects on BPH both in vitro and in vivo and might provide valuable information in the development of preventive or therapeutic agents for improving BPH.
3.Ethanol Extracts of Cornus alba Improve Benign Prostatic Hyperplasia by Inhibiting Prostate Cell Proliferation through Modulating 5 Alpha-Reductase/ Androgen Receptor Axis-Mediated Signaling
Byungdoo HWANG ; Jongyeob KIM ; Solbi PARK ; Hyun Joo CHUNG ; Hoon KIM ; Yung Hyun CHOI ; Wun-Jae KIM ; Soon Chul MYUNG ; Tae-Bin JEONG ; Kyung-Mi KIM ; Jae-Chul JUNG ; Min-Won LEE ; Jin Wook KIM ; Sung-Kwon MOON
The World Journal of Men's Health 2024;42(4):830-841
Purpose:
The aim of this study was to investigate the efficacy of ethanol extracts of Cornus alba (ECA) against benign prostatic hyperplasia (BPH) in vitro and in vivo.
Materials and Methods:
The prostate stromal cells (WPMY-1) and epithelial cells (RWPE-1) were used to examine the action mechanism of ECA in BPH in vitro. ECA efficacy was evaluated in vivo using a testosterone propionate (TP)-induced BPH rat model.
Results:
Treatment with ECA inhibited the proliferation of prostate cells by inducing G1-phase cell cycle arrest through the regulation of positive and negative proteins. Treatment of prostate cells with ECA resulted in alterations in the mitogen-activated protein kinases and protein kinase B signaling pathways. The transcriptional binding activity of the NF-κB motif was suppressed in both ECA-treated prostate cells. In addition, treatment with ECA altered the level of BPH-associated axis markers (5α-reductase, fibroblast growth factor-2, androgen receptor, epidermal growth factor, Bcl-2, and Bax) in both cell lines. Finally, the administration of ECA attenuated the enlargement of prostatic tissues in the TP-induced BPH rat model, accompanied by histology, immunoblot, and serum dihydrotestosterone levels.
Conclusions
These results demonstrated that ECA exerted beneficial effects on BPH both in vitro and in vivo and might provide valuable information in the development of preventive or therapeutic agents for improving BPH.
4.Ethanol Extracts of Cornus alba Improve Benign Prostatic Hyperplasia by Inhibiting Prostate Cell Proliferation through Modulating 5 Alpha-Reductase/ Androgen Receptor Axis-Mediated Signaling
Byungdoo HWANG ; Jongyeob KIM ; Solbi PARK ; Hyun Joo CHUNG ; Hoon KIM ; Yung Hyun CHOI ; Wun-Jae KIM ; Soon Chul MYUNG ; Tae-Bin JEONG ; Kyung-Mi KIM ; Jae-Chul JUNG ; Min-Won LEE ; Jin Wook KIM ; Sung-Kwon MOON
The World Journal of Men's Health 2024;42(4):830-841
Purpose:
The aim of this study was to investigate the efficacy of ethanol extracts of Cornus alba (ECA) against benign prostatic hyperplasia (BPH) in vitro and in vivo.
Materials and Methods:
The prostate stromal cells (WPMY-1) and epithelial cells (RWPE-1) were used to examine the action mechanism of ECA in BPH in vitro. ECA efficacy was evaluated in vivo using a testosterone propionate (TP)-induced BPH rat model.
Results:
Treatment with ECA inhibited the proliferation of prostate cells by inducing G1-phase cell cycle arrest through the regulation of positive and negative proteins. Treatment of prostate cells with ECA resulted in alterations in the mitogen-activated protein kinases and protein kinase B signaling pathways. The transcriptional binding activity of the NF-κB motif was suppressed in both ECA-treated prostate cells. In addition, treatment with ECA altered the level of BPH-associated axis markers (5α-reductase, fibroblast growth factor-2, androgen receptor, epidermal growth factor, Bcl-2, and Bax) in both cell lines. Finally, the administration of ECA attenuated the enlargement of prostatic tissues in the TP-induced BPH rat model, accompanied by histology, immunoblot, and serum dihydrotestosterone levels.
Conclusions
These results demonstrated that ECA exerted beneficial effects on BPH both in vitro and in vivo and might provide valuable information in the development of preventive or therapeutic agents for improving BPH.
5.p27 Cell Cycle Inhibitor and Survival in Luminal-Type Breast Cancer:Gene Ontology, Machine Learning, and Drug Screening Analysis
In Ah PARK ; Yung-Kyun NOH ; Kyueng-Whan MIN ; Dong-Hoon KIM ; Jeong-Yeon LEE ; Byoung Kwan SON ; Mi Jung KWON ; Myung-Hoon HAN ; Joon Young HUR ; Jung Soo PYO
Journal of Breast Cancer 2024;27(5):305-322
Purpose:
A widely distributed cell cycle inhibitor, p27, regulates cyclin-dependent kinase-cyclin complexes. Although the prognostic value of p27 has been established for various types of carcinomas, its role in luminal breast cancer remains poorly understood. This study aimed to explore the functional enrichment of p27 and identify potential drug targets in patients with luminal-type breast cancer.
Methods:
Clinicopathological data were collected from 868 patients with luminal-type breast cancer. Additionally, publicly available data from the Molecular Taxonomy of Breast Cancer International Consortium (METABRIC) dataset (1,500 patients) and the Gene Expression Omnibus database (855 patients) were included in the analysis. Immunohistochemical staining for p27, differential gene expression analysis, disease ontology analysis, survival prediction modeling using machine learning (ML), and in vitro drug screening were also performed.
Results:
Low p27 expression correlated with younger age, advanced tumor stage, estrogen receptor/progesterone receptor negativity, decreased cluster of differentiation 8+ T cell count, and poorer survival outcomes in luminal-type breast cancer. The METABRIC data revealed that reduced cyclin-dependent kinase inhibitor 1B (CDKN1B) expression (encoding p27) was associated with cell proliferation-related pathways and epigenetic polycomb repressive complex 2. Using ML, p27 emerged as the second most significant survival factor after N stage, thereby enhancing survival model performance. Additionally, luminal-type breast cancer cell lines with low CDKN1B expression demonstrated increased sensitivity to specific anticancer drugs such as voxtalisib and serdemetan, implying a potential therapeutic synergy between CDKN1B-targeted approaches and these drugs.
Conclusion
The integration of ML and bioinformatic analyses of p27 has the potential to enhance risk stratification and facilitate personalized treatment strategies for patients with breast cancer.
6.Compression Neuropathy Caused by Pelvic Lymphocele after Laparoscopic Surgical Staging
Dong Jin CHAE ; Jong Bum PARK ; Mi Jin HONG ; Jungyun KIM ; Cho E. SIM ; Seung-Eun KIM ; Yung Jin LEE
Journal of Electrodiagnosis and Neuromuscular Diseases 2024;26(2):29-34
Lymphocele is a complication of pelvic surgery that infrequently leads to compressive neuropathy. We present a case of compressive obturator neuropathy resulting from lymphocele development after pelvic surgery. Electrodiagnostic studies revealed severe axonal disruption in the left obturator nerve, which is associated with poor functional recovery. This case underscores the role of electrodiagnostic testing in the diagnosis and rehabilitation of patients experiencing lower limb weakness following gynecological pelvic surgery.
7.Diagnosis of ADSSL1 Mutation-Induced Myopathy Through Electrophysiology and Genetic Tools
Dong Jin CHAE ; Yung Jin LEE ; Mi Jin HONG ; Cho E. SIM ; Seung-Eun KIM ; Jong Bum PARK
Journal of Electrodiagnosis and Neuromuscular Diseases 2024;26(2):35-39
Mutations in the adenylosuccinate synthase 1 (ADSSL1) gene, resulting in adenylosuccinate synthase deficiency, are a rare genetic anomaly characterized by muscular weakness, elevated serum creatine kinase levels, and pathological muscle findings. However, these clinical symptoms are similar to those observed in many other myopathies, increasing the risk of misdiagnosis. In an era of rapidly expanding genetic knowledge, the authors sought to verify the diagnostic utility of electromyography for genetic disorders. Through combined electrophysiological and genetic studies, a patient initially thought to have Becker’s muscular dystrophy was conclusively diagnosed with ADSSL1 mutagenic myopathy. This case underscores the importance of re-evaluating diseases that do not follow the typical clinical progression of traditional myopathies, especially in light of recent diagnostic advancements.
8.p27 Cell Cycle Inhibitor and Survival in Luminal-Type Breast Cancer:Gene Ontology, Machine Learning, and Drug Screening Analysis
In Ah PARK ; Yung-Kyun NOH ; Kyueng-Whan MIN ; Dong-Hoon KIM ; Jeong-Yeon LEE ; Byoung Kwan SON ; Mi Jung KWON ; Myung-Hoon HAN ; Joon Young HUR ; Jung Soo PYO
Journal of Breast Cancer 2024;27(5):305-322
Purpose:
A widely distributed cell cycle inhibitor, p27, regulates cyclin-dependent kinase-cyclin complexes. Although the prognostic value of p27 has been established for various types of carcinomas, its role in luminal breast cancer remains poorly understood. This study aimed to explore the functional enrichment of p27 and identify potential drug targets in patients with luminal-type breast cancer.
Methods:
Clinicopathological data were collected from 868 patients with luminal-type breast cancer. Additionally, publicly available data from the Molecular Taxonomy of Breast Cancer International Consortium (METABRIC) dataset (1,500 patients) and the Gene Expression Omnibus database (855 patients) were included in the analysis. Immunohistochemical staining for p27, differential gene expression analysis, disease ontology analysis, survival prediction modeling using machine learning (ML), and in vitro drug screening were also performed.
Results:
Low p27 expression correlated with younger age, advanced tumor stage, estrogen receptor/progesterone receptor negativity, decreased cluster of differentiation 8+ T cell count, and poorer survival outcomes in luminal-type breast cancer. The METABRIC data revealed that reduced cyclin-dependent kinase inhibitor 1B (CDKN1B) expression (encoding p27) was associated with cell proliferation-related pathways and epigenetic polycomb repressive complex 2. Using ML, p27 emerged as the second most significant survival factor after N stage, thereby enhancing survival model performance. Additionally, luminal-type breast cancer cell lines with low CDKN1B expression demonstrated increased sensitivity to specific anticancer drugs such as voxtalisib and serdemetan, implying a potential therapeutic synergy between CDKN1B-targeted approaches and these drugs.
Conclusion
The integration of ML and bioinformatic analyses of p27 has the potential to enhance risk stratification and facilitate personalized treatment strategies for patients with breast cancer.
9.p27 Cell Cycle Inhibitor and Survival in Luminal-Type Breast Cancer:Gene Ontology, Machine Learning, and Drug Screening Analysis
In Ah PARK ; Yung-Kyun NOH ; Kyueng-Whan MIN ; Dong-Hoon KIM ; Jeong-Yeon LEE ; Byoung Kwan SON ; Mi Jung KWON ; Myung-Hoon HAN ; Joon Young HUR ; Jung Soo PYO
Journal of Breast Cancer 2024;27(5):305-322
Purpose:
A widely distributed cell cycle inhibitor, p27, regulates cyclin-dependent kinase-cyclin complexes. Although the prognostic value of p27 has been established for various types of carcinomas, its role in luminal breast cancer remains poorly understood. This study aimed to explore the functional enrichment of p27 and identify potential drug targets in patients with luminal-type breast cancer.
Methods:
Clinicopathological data were collected from 868 patients with luminal-type breast cancer. Additionally, publicly available data from the Molecular Taxonomy of Breast Cancer International Consortium (METABRIC) dataset (1,500 patients) and the Gene Expression Omnibus database (855 patients) were included in the analysis. Immunohistochemical staining for p27, differential gene expression analysis, disease ontology analysis, survival prediction modeling using machine learning (ML), and in vitro drug screening were also performed.
Results:
Low p27 expression correlated with younger age, advanced tumor stage, estrogen receptor/progesterone receptor negativity, decreased cluster of differentiation 8+ T cell count, and poorer survival outcomes in luminal-type breast cancer. The METABRIC data revealed that reduced cyclin-dependent kinase inhibitor 1B (CDKN1B) expression (encoding p27) was associated with cell proliferation-related pathways and epigenetic polycomb repressive complex 2. Using ML, p27 emerged as the second most significant survival factor after N stage, thereby enhancing survival model performance. Additionally, luminal-type breast cancer cell lines with low CDKN1B expression demonstrated increased sensitivity to specific anticancer drugs such as voxtalisib and serdemetan, implying a potential therapeutic synergy between CDKN1B-targeted approaches and these drugs.
Conclusion
The integration of ML and bioinformatic analyses of p27 has the potential to enhance risk stratification and facilitate personalized treatment strategies for patients with breast cancer.
10.Ethanol Extracts of Cornus alba Improve Benign Prostatic Hyperplasia by Inhibiting Prostate Cell Proliferation through Modulating 5 Alpha-Reductase/ Androgen Receptor Axis-Mediated Signaling
Byungdoo HWANG ; Jongyeob KIM ; Solbi PARK ; Hyun Joo CHUNG ; Hoon KIM ; Yung Hyun CHOI ; Wun-Jae KIM ; Soon Chul MYUNG ; Tae-Bin JEONG ; Kyung-Mi KIM ; Jae-Chul JUNG ; Min-Won LEE ; Jin Wook KIM ; Sung-Kwon MOON
The World Journal of Men's Health 2024;42(4):830-841
Purpose:
The aim of this study was to investigate the efficacy of ethanol extracts of Cornus alba (ECA) against benign prostatic hyperplasia (BPH) in vitro and in vivo.
Materials and Methods:
The prostate stromal cells (WPMY-1) and epithelial cells (RWPE-1) were used to examine the action mechanism of ECA in BPH in vitro. ECA efficacy was evaluated in vivo using a testosterone propionate (TP)-induced BPH rat model.
Results:
Treatment with ECA inhibited the proliferation of prostate cells by inducing G1-phase cell cycle arrest through the regulation of positive and negative proteins. Treatment of prostate cells with ECA resulted in alterations in the mitogen-activated protein kinases and protein kinase B signaling pathways. The transcriptional binding activity of the NF-κB motif was suppressed in both ECA-treated prostate cells. In addition, treatment with ECA altered the level of BPH-associated axis markers (5α-reductase, fibroblast growth factor-2, androgen receptor, epidermal growth factor, Bcl-2, and Bax) in both cell lines. Finally, the administration of ECA attenuated the enlargement of prostatic tissues in the TP-induced BPH rat model, accompanied by histology, immunoblot, and serum dihydrotestosterone levels.
Conclusions
These results demonstrated that ECA exerted beneficial effects on BPH both in vitro and in vivo and might provide valuable information in the development of preventive or therapeutic agents for improving BPH.

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