• 한국축산식품학회지
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• 제44권1호
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• pp.204-215
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• 2024

This study was designed to examine the effect of Lactilactobacillus curvatus LB-P9 on hair regeneration. The treatment of LB-P9 conditioned medium increased the proliferation of both hair follicle dermal papilla cells and hair germinal matrix cells (hGMCs). Moreover, the expression levels of hair growth factors such as vascular endothelial growth factor (VEGF) and fibroblast growth factor 7 were significantly elevated in hGMCs co-cultured with LB-P9. After time-synchronized depilation, mice were orally administered with either 4×10⁷ colony forming unit (CFU) of LB-P9 (low dose) or 4×10⁸ CFU of LB-P9 (high dose), once daily for 4 weeks. Compared with the vehicle (phosphate-buffered saline)-administrated group, the LB-P9-treated groups exhibited accelerated hair regrowth rate and enhanced hair thickness in a dose-dependent manner. Supporting this observation, both hair follicle numbers and the dermal thickness in skin tissues of the LB-P9-treated groups were increased, compared to those of the vehicle-treated group. These results might be explained by the increased level of β-catenin and number of hair follicle stem cells (CD34⁺ CD49f⁺ cells) in the skin tissues of mice administered with LB-P9, compared to the vehicle-treated mice. Also, increased serum levels of hair growth factors such as VEGF and insulin-like growth factor-1, and superoxide dismutase were found in the LB-P9-treated groups, compared to those of the vehicle-treated group. Taken together, these results might demonstrate that the oral administration of LB-P9 promotes hair regeneration by the enhancement of dermal papilla proliferation through the stimulation of hair growth factor production.

• Journal of Ginseng Research
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• 제24권3호
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• pp.128-133
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• 2000

인삼(Panaxginseng)의 물추출물로부터 분리한 분자량 10 kDa 이상의 분획에서 강한 비장세포 분열증식 효과를 볼 수 있었다. 또한 이 분획은 LPS와 Con A에 의해서 유도된 B-cell과 T-cell의 증식효과를 66%와 49%씩 더 증가시켰다. 이 분획을 80% ammonium sulfate 침전법을 실시해서 조 단백질 분획을 얻었으며 이를 다시 DEAE Sepharose CL-6B column chromatography를 수행해서 단백질 분획들을 분리하였다. 대부분의 단백질은NaCl gradien에 의해서 용출 되었고 0~1 M NaCl gradient에 의해서 분리된 4종류의 당단백질 분획에서 비장세포 증식효과와 대식세포의 NO 생산촉진 효과가 나타났다. 특히 단백질 35.9 %,중성당 49.4%, 산성당 12.5%로 구성되어있는 F-2 분획에서는 LPS수준의 높은 면역세포 증식효과를 보였다. 그러나 F-2를 protease로 처리한 후의 비장세포 증식 효과는 대조군과 대비해서 29.1%가 낮아졌다. 이상의 결과로부터 인삼의 물추출물에서 분리된 F-2분획의 면역세포 활성효과에는 단백질 부분이 중요한 역할을 한다고 생각된다.

• Journal of Microbiology and Biotechnology
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• 제14권3호
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• pp.628-630
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• 2004

Antitumor activities of a peptide fraction isolated from traditional Korean soy sauce (SSP) were investigated in vitro and in vivo using cancer cell lines and F9 teratocarcinoma-bearing BALB/c mice. SSP exerted a dose-dependent antiproliferative effect on P388D1 mouse lymphoma, F9 mouse teratocarcinoma, and DLD-l human colon cancer cells with $IC_{50}$ values of 11, 50, and $50\mug/ml$, respectively. Tumor growth in F9 teratocarcinoma-bearing BALB/c mice, orally administered with 80 and 200 mg/kg/day of SSPs, was inhibited 10.3% and 52.4%, respectively, and survival days increased by 11.9% and 22.1%, respectively, compared to the control group. The results of antitumor activities exerted by SSP in vitro and in vivo suggest the feasibility of using SSP as an antitumor agent.

• Journal of Oral Medicine and Pain
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• 제9권1호
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• pp.127-138
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• 1984

The author had tried to identify the sex from single tooth by detecting F-body of Y-chromosome in the nucleus of the dental pulp cells of 70 persons aged from 4 to 61 years under a fluorescent miscroscope. The results were as follows : 1. In the cell nuclei of male and female dental pulp at refrigeratory, the rate of F-body appearancd ranged 42-86%(average 61.06%) in male, while it was 0-6%(average 1.86%) in female, indicationg that male could be distinctly differentiated from female by F-body. 2. With male and female dental pulp puterfide by leaving in at room temperature, the rate of F-body appearance ranged 35-58%(average 48.20%) in male, 1-3%(average1.70%) in female, indicating that it was possible to distinguish male and female by F-body. 3. Even in heat-treated male teeth at $100^{\circ}C$,10 mins, the rate of F-body appearace proved to be 32-56%(averaged 42.50%), also indicating the possibility of identifying male. 4. When detecting of F-body in process of time, the rate of F-body appearance did not show major charges. 5. It was reaffirmed that F-body detection method was a positive determination method of male.

• Natural Product Sciences
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• 제18권2호
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• pp.89-96
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• 2012

Ligularia stenocephala has been used as a traditional medicine for the treatment of asthma, arthritis, jaundice, and hyperpiesia. In this study, we investigated the anti-metastatic and hypnotic effects of the methanolic extract of L. stenocephala (MLS). Gelatin zymographic analysis revealed that MLS suppresses matrix metalloproteinase-2 (MMP-2) and MMP-9 activities in B16F10 cells. The gene expressions of MMPs were also down-regulated by MLS treatment in a dose-dependent manner. In addition, cancer cell invasion and migration were attenuated by MLS via suppression of NF-${\kappa}B$ activation. The in vivo lung metastasis of B16F10 melanoma cells was also inhibited by the treatment of MLS. These findings show that MLS has anti-metastatic properties, and, therefore, it might be applicable as a valuable anti-metastatic agent.

• Natural Product Sciences
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• 제17권2호
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• pp.135-141
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• 2011

Celastrus orbiculatus has been widely used as a traditional medicine for the treatment of many diseases including rheumatoid arthritis and odontalgia. In the present study, anti-metastatic activity of a methanolic extract from C. orbiculatus (MCO) was studied. A gelatin zymographic assay revealed that MCO has potent inhibitory effects on MMP-2 and MMP-9 activities in B16F10 melanoma cells. Moreover, MCO attenuated MMP expression via down-regulation of NF-${\kappa}$B translocation to the nucleus. Melanoma cell migration and invasion were also down-regulated by MCO. In addition, MCO significantly suppressed lung metastasis in an in vivo model. These results strongly suggest that MCO may possibly be used as a valuable anti-metastatic agent for cancer treatment.

• 대한한방종양학회지
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• 제3권1호
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• pp.129-147
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• 1997

현재 서양의학에서 활용되고 있는 항암 요법으로는 외과처치(外科處置), 화학요법(化學療法), 방사선요법(放射線療法) 및 면역요법(免疫療法) 등(等)이 있으며, 그 중에서도 항암제(抗癌劑)에 의한 화학요법과 방사선요법이 가장 많이 응용되고 있다. 그런데 이들은 암세포(癌細胞)뿐만 아니라 정상세포(正常細胞)까지도 살상(殺傷)함으로써 종양세포(腫瘍細胞)를 억제하는 동시에 골수조혈기(骨髓造血器), 소화계통(消化系統) 및 면역기능(免疫機能)을 포함하는 인체의 정상적인 기능을 손상시키는 문제점으로 그 사용에 제한을 받고 있다. 따라서, 본 연구는 삼용부정탕(蔘茸扶正湯)의 항암요법으로 손상된 조직의 회복 및 조혈촉진 효과를 규명하기 위해 생쥐를 대상으로 하여 실험하였다. 그 결과, 생쥐 비장세포에 대한 증식효과(增殖效果), 조혈촉진인자(造血促進因子)의 분필능(分泌能), 방사선에 대한 임파구의 방어효과(防禦效果), 방사선에 대한 조혈세포 방어효과(防禦效果), 방사선(9Gy)을 조사받은 생쥐의 생존율(生存率) 등에서 유의성 있는 결과를 얻어내어 아래와 같이 보고하는 바이다.

• 한국동물학회:학술대회논문집
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• 한국동물학회 1996년도 한국생물과학협회 국제학술대회
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• pp.159.2-159
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• 1996

No Abstract, See Full Text

• Journal of Microbiology and Biotechnology
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• 제19권9호
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• pp.946-950
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• 2009

In the course of screening for apoptotic substances that induce apoptosis in human leukemia U937 cells, a fungal strain, F000487, which exhibits potent inducible activity, was selected. The active compound was purified from an ethyl acetate extract of the microorganism by Sep-pak $C_{18}$ column chromatography and HPLC, and was identified as atromentin by spectroscopic methods. This compound induced caspase-3 processing in human leukemia U937 cells. The caspase-3 and poly (ADP-ribose) polymerase (PARP) were induced by atromentin in a dose-dependent manner. Furthermore, DNA fragmentation was also induced by this compound in a dose-dependent manner. These results show that atromentin potently induces apoptosis in U937 cells and that atromentin-induced apoptosis is related to the selective activation of caspases.

• The Korean Journal of Physiology and Pharmacology
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• 제27권3호
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• pp.257-265
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• 2023

Kidney ischemia/reperfusion (I/R) injury, a common cause of acute kidney injury (AKI), is associated with the migration of inflammatory cells into the kidney. Ras-related C3 botulinum toxin substrate 1 (Rac1), a member of the Rho family of small GTPase, plays an important role in inflammatory cell migration by cytoskeleton rearrangement. Here, we investigated the role of Rac1 on kidney I/R injury and macrophage migration. Male mice were subjected to either 25 min of bilateral ischemia followed by reperfusion (I/R) or a sham operation. Some mice were administrated with either NSC23766, an inhibitor of Rac1, or 0.9% NaCl (vehicle). Kidney damage and Rac1 activity and expression were measured. The migration and lamellipodia formation of RAW264.7 cells, mouse monocyte/macrophage, induced by monocyte chemoattractant protein-1 (MCP-1, a chemokine) were determined using transwell migration assay and phalloidin staining, respectively. In sham-operated kidneys, Rac1 was expressed in tubular cells and interstitial cells. In I/R-injured kidneys, Rac1 expression was decreased in tubule cells in correlation with the damage of tubular cells, whereas Rac1 expression increased in the interstitium in correlation with an increased population of F4/80 cells, monocytes/macrophages. I/R increased Rac1 activity without changing total Rac1 expression in the whole kidney lysates. NSC23766 administration blocked Rac1 activation and protected the kidney against I/R-induced kidney damage and interstitial F4/80 cell increase. NSC23766 suppressed monocyte MCP-1-induced lamellipodia and filopodia formation and migration of RAW 264.7 cells. These results indicate Rac1 inhibition protects the kidney against I/R via inhibition of monocytes/macrophages migration into the kidney.