1.Digital interim immediate denture fabrication and implant-supported removable partial denture fabrication after multiple teeth extraction in patient with chronic periodontitis: a case report
Min-Jae PARK ; Ji-Won BANG ; Joo-Hyuk BANG ; Seon-Young LIM ; Yong-Sang LEE ; Keun-Woo LEE ; Sung-Yong KIM
The Journal of Korean Academy of Prosthodontics 2024;62(2):104-112
When teeth are extracted, patient face social, psychological and aesthetic problems which can be minimized by fabricating a interim immediate denture. Interim immediate denture manufactured using digital technology can be completed with reduced number of patients’ visits and simple laboratory process. Implant-supported removable partial denture (ISRPD) has been suggested as alternative treatment option when fixed implant prosthesis is not feasible. In this case, interim immediate dentures were fabricated using digital technology for patient after teeth extraction and treatment using ISRPD by installing implants and surveyed crowns is found to be successful with better support, stability and maintenance of removable partial dentures.
2.Long-term follow-up results of cytarabine-containing chemotherapy for acute promyelocytic leukemia
Young Hoon PARK ; Dae-Young KIM ; Yeung-Chul MUN ; Eun Kyung CHO ; Jae Hoon LEE ; Deog-Yeon JO ; Inho KIM ; Sung-Soo YOON ; Seon Yang PARK ; Byoungkook KIM ; Soo-Mee BANG ; Hawk KIM ; Young Joo MIN ; Jae Hoo PARK ; Jong Jin SEO ; Hyung Nam MOON ; Moon Hee LEE ; Chul Soo KIM ; Won Sik LEE ; So Young CHONG ; Doyeun OH ; Dae Young ZANG ; Kyung Hee LEE ; Myung Soo HYUN ; Heung Sik KIM ; Sung-Hyun KIM ; Hyukchan KWON ; Hyo Jin KIM ; Kyung Tae PARK ; Sung Hwa BAE ; Hun Mo RYOO ; Jung Hye CHOI ; Myung-Ju AHN ; Hwi-Joong YOON ; Sung-Hyun NAM ; Bong-Seog KIM ; Chu-Myong SEONG
The Korean Journal of Internal Medicine 2022;37(4):841-850
Background/Aims:
We evaluated the feasibility and long-term efficacy of the combination of cytarabine, idarubicin, and all-trans retinoic acid (ATRA) for treating patients with newly diagnosed acute promyelocytic leukemia (APL).
Methods:
We included 87 patients with newly diagnosed acute myeloid leukemia and a t(15;17) or promyelocytic leukemia/retinoic acid receptor alpha (PML-RARα) mutation. Patients received 12 mg/m2/day idarubicin intravenously for 3 days and 100 mg/m2/day cytarabine for 7 days, plus 45 mg/m2/day ATRA. Clinical outcomes included complete remission (CR), relapse-free survival (RFS), overall survival (OS), and the secondary malignancy incidence during a 20-year follow-up.
Results:
The CR, 10-year RFS, and 10-year OS rates were 89.7%, 94.1%, and 73.8%, respectively, for all patients. The 10-year OS rate was 100% for patients that achieved CR. Subjects were classified according to the white blood cell (WBC) count in peripheral blood at diagnosis (low-risk, WBC < 10,000/mm3; high-risk, WBC ≥ 10,000/mm3). The low-risk group had significantly higher RFS and OS rates than the high-risk group, but the outcomes were not superior to the current standard treatment (arsenic trioxide plus ATRA). Toxicities were similar to those observed with anthracycline plus ATRA, and higher than those observed with arsenic trioxide plus ATRA. The secondary malignancy incidence after APL treatment was 2.7%, among the 75 patients that achieved CR, and 5.0% among the 40 patients that survived more than 5 years after the APL diagnosis.
Conclusions
Adding cytarabine to anthracycline plus ATRA was not inferior to anthracycline plus ATRA alone, but it was not comparable to arsenic trioxide plus ATRA. The probability of secondary malignancy was low.
3.How myeloproliferative neoplasms patients’ experience and expectations differ from physicians’: the international MPN Landmark survey
Ja Min BYUN ; Soo-Mee BANG ; Eun-Ji CHOI ; Ki-Seong EOM ; Chul Won JUNG ; Hye-seon KIM ; Jiwon PARK ; Chul Won CHOI
The Korean Journal of Internal Medicine 2022;37(2):444-454
Background/Aims:
Recent advances in the understanding of the pathophysiology of myeloproliferative neoplasms (MPN) were not paralleled with advances in treatment options; thus many questions regarding optimal MPN management remain unanswered. Here, we report the results of descriptive survey study of Korean MPN patients and their attending physicians.
Methods:
A total of 105 Korean patients (myelofibrosis [MF], 39; polycythemia vera [PV], 25; essential thrombocythemia [ET], 41) and 30 physicians completed the Landmark Health Survey, then data from the survey were analyzed.
Results:
Among the MPN-Symptom Assessment Form symptoms, the most severe symptom reported was ‘fatigue or tiredness’ in MF and ET patients and ‘itching’ in PV patients. The majority of the patients agreed that MPN reduced their quality of life (QoL). Interestingly, physicians gave higher scores regarding the impact of MPN on patient’s daily and social life compared to patients themselves. For patients, the most important treatment goal was symptom improvement regardless of MPN subtype, while for physicians the highest priority for treatment was better QoL regardless of MPN subtype. Generally, both patients and physicians were satisfied with the overall treatment/management of MPN and communications. However, many patients felt there was not enough time during the appointment for discussion, while many physicians felt they lacked effective drugs to offer to their patients.
Conclusions
Our study suggests there are room for better-standardized monitoring of symptoms and treatment options and those continuous efforts to bridge the gap between patients and physicians are necessary for better care of MPN patients.
4.The Association of Estrogen Receptor Activity, Interferon Signaling, and MHC Class I Expression in Breast Cancer
In Hye SONG ; Young-Ae KIM ; Sun-Hee HEO ; Won Seon BANG ; Hye Seon PARK ; Yeon ho CHOI ; Heejae LEE ; Jeong-Han SEO ; Youngjin CHO ; Sung Wook JUNG ; Hee Jeong KIM ; Sei Hyun AHN ; Hee Jin LEE ; Gyungyub GONG
Cancer Research and Treatment 2022;54(4):1111-1120
Purpose:
The expression of major histocompatibility complex class I (MHC I) has previously been reported to be negatively associated with estrogen receptor (ER) expression. Furthermore, MHC I expression, level of tumor-infiltrating lymphocytes (TILs), and expression of interferon (IFN) mediator MxA are positively associated with one another in human breast cancers. This study aimed to investigate the mechanisms of association of MHC I with ER and IFN signaling.
Materials and Methods:
The human leukocyte antigen (HLA)-ABC protein expression was analyzed in breast cancer cell lines. The expressions of HLA-A and MxA mRNAs were analyzed in MCF-7 cells in Gene Expression Omnibus (GEO) data. ER and HLA-ABC expressions, Ki-67 labeling index and TIL levels in tumor tissue were also analyzed in ER+/ human epidermal growth factor receptor 2 (HER2)- breast cancer patients who randomly received either neoadjuvant chemotherapy or estrogen modulator treatment followed by resection.
Results:
HLA-ABC protein expression was decreased after β-estradiol treatment or hESR-GFP transfection and increased after fulvestrant or IFN-γ treatment in cell lines. In GEO data, HLA-A and MxA expression was increased after ESR1 shRNA transfection. In patients, ER Allred score was significantly lower and the HLA-ABC expression, TIL levels, and Ki-67 were significantly higher in the estrogen modulator treated group than the chemotherapy treated group.
Conclusion
MHC I expression and TIL levels might be affected by ER pathway modulation and IFN treatment. Further studies elucidating the mechanism of MHC I regulation could suggest a way to boost TIL influx in cancer in a clinical setting.
5.Expression of Immunoproteasome Subunit LMP7 in Breast Cancer and Its Association with Immune-Related Markers.
Miseon LEE ; In Hye SONG ; Sun Hee HEO ; Young Ae KIM ; In Ah PARK ; Won Seon BANG ; Hye Seon PARK ; Gyungyub GONG ; Hee Jin LEE
Cancer Research and Treatment 2019;51(1):80-89
PURPOSE: In the presence of interferon, proteasome subunits are replaced by their inducible counterparts to form an immunoproteasome (IP) plays a key role in generation of antigenic peptides presented by MHC class I molecules, leading to elicitation of a T cell‒mediated immune response. Although the roles of IP in other cancers, and inflammatory diseases have been extensively studied, its significance in breast cancer is unclear. MATERIALS AND METHODS: We investigated the expression of LMP7, an IP subunit, and its relationship with immune system components in two breast cancer cohorts. RESULTS: In 668 consecutive breast cancer cohort, 40% of tumors showed high level of LMP7 expression, and tumors with high expression of LMP7 had more tumor-infiltrating lymphocytes (TILs) in each subtype of breast cancer. In another cohort of 681 triple-negative breast cancer patients cohort, the expression of LMP7 in tumor cells was significantly correlated with the amount of TILs and the expression of interferon-associated molecules (MxA [p < 0.001] and PKR [p < 0.001]), endoplasmic reticulum stress-associated molecules (PERK [p=0.012], p-eIF2a [p=0.001], and XBP1 [p < 0.001]), and damage-associated molecular patterns (HMGN1 [p < 0.001] and HMGB1 [p < 0.001]). Patients with higher LMP7 expression had better disease-free survival outcomes than those with no or low expression in the positive lymph node metastasis group (p=0.041). CONCLUSION: Close association between the TIL levels and LMP7 expression in breast cancer indicates that better antigen presentation through greater LMP7 expression might be associated with more TILs.
Antigen Presentation
;
Breast Neoplasms*
;
Breast*
;
Cohort Studies
;
Disease-Free Survival
;
Endoplasmic Reticulum
;
HLA Antigens
;
HMGB1 Protein
;
Humans
;
Immune System
;
Interferons
;
Lymph Nodes
;
Lymphocytes, Tumor-Infiltrating
;
Neoplasm Metastasis
;
Peptides
;
Proteasome Endopeptidase Complex
;
Triple Negative Breast Neoplasms
6.Usefulness of Virtual Expiratory CT Images to Compensate for Respiratory Liver Motion in Ultrasound/CT Image Fusion: A Prospective Study in Patients with Focal Hepatic Lesions
Tae Wook KANG ; Min Woo LEE ; Dong Ik CHA ; Hyun Jung PARK ; Jun Sung PARK ; Won Chul BANG ; Seon Woo KIM
Korean Journal of Radiology 2019;20(2):225-235
OBJECTIVE: To assess whether virtual expiratory (VE)-computed tomography (CT)/ultrasound (US) fusion imaging is more effective than conventional inspiratory (CI)-CT/US fusion imaging for hepatic interventional procedures. MATERIALS AND METHODS: This prospective study was approved by the Institutional Review Board, and informed consent was obtained from each patient. In total, 62 patients with focal hepatic lesions referred for hepatic interventional procedures were enrolled. VE-CT images were generated from CI-CT images to reduce the effects of respiration-induced liver motion. The two types of CT images were fused with real-time US images for each patient. The operators scored the visual similarity with the liver anatomy upon initial image fusion and the summative usability of complete image fusion using the respective five-point scales. The time required for complete image fusion and the number of point locks used were also compared. RESULTS: In comparison with CI-CT/US fusion imaging, VE-CT/US fusion imaging showed significantly higher visual similarity with the liver anatomy on the initial image fusion (mean score, 3.9 vs. 1.7; p < 0.001) and higher summative usability for complete image fusion (mean score, 4.0 vs. 1.9; p < 0.001). The required time (mean, 11.1 seconds vs. 22.5 seconds; p < 0.001) and the number of point locks (mean, 1.6 vs. 3.0; p < 0.001) needed for complete image fusion using VE-CT/US fusion imaging were significantly lower than those needed for CI-CT/US fusion imaging. CONCLUSION: VE-CT/US fusion imaging is more effective than CI-CT/US fusion imaging for hepatic interventional procedures.
Ethics Committees, Research
;
Humans
;
Informed Consent
;
Liver
;
Prospective Studies
;
Respiration
;
Ultrasonography
;
Weights and Measures
7.Primary Pulmonary Chordoid Meningioma.
So Young BAE ; Hye seon KIM ; Hyo Jun JANG ; Won Sang CHUNG ; Hyuck KIM ; Young Hak KIM ; Jun Ho LEE ; Seong Sik BANG
The Korean Journal of Thoracic and Cardiovascular Surgery 2018;51(6):410-414
Primary pulmonary meningioma is a rare disease, and chordoid meningioma is an uncommon variant of meningioma in the central nervous system (CNS) with a high recurrence rate. We report a case of primary pulmonary chordoid meningioma that presented as a solitary pulmonary nodule (SPN). The SPN was resected by thoracoscopic wedge resection and was revealed to have characteristics of chordoid meningioma. After confirming the absence of a meningioma in the CNS by brain imaging, the nodule was diagnosed as a primary pulmonary chordoid meningioma. The patient remained disease-free after 26 months postoperatively. To our knowledge, this is the third case of primary pulmonary chordoid meningioma to be reported.
Central Nervous System
;
Humans
;
Meningioma*
;
Neuroimaging
;
Rare Diseases
;
Recurrence
;
Solitary Pulmonary Nodule
8.Piperidylmethyloxychalcone improves immune-mediated acute liver failure via inhibiting TAK1 activity.
Sun Hong PARK ; Jeong Ah KWAK ; Sang Hun JUNG ; Byeongwoo AHN ; Won Jea CHO ; Cheong Yong YUN ; Chang Seon NA ; Bang Yeon HWANG ; Jin Tae HONG ; Sang Bae HAN ; Youngsoo KIM
Experimental & Molecular Medicine 2017;49(11):e392-
Mice deficient in the toll-like receptor (TLR) or the myeloid differentiation factor 88 (MyD88) are resistant to acute liver failure (ALF) with sudden death of hepatocytes. Chalcone derivatives from medicinal plants protect from hepatic damages including ALF, but their mechanisms remain to be clarified. Here, we focused on molecular basis of piperidylmethyloxychalcone (PMOC) in the treatment of TLR/MyD88-associated ALF. C57BL/6J mice were sensitized with D-galactosamine (GalN) and challenged with Escherichia coli lipopolysaccharide (LPS, TLR4 agonist) or oligodeoxynucleotide containing unmethylated CpG motif (CpG ODN, TLR9 agonist) for induction of ALF. Post treatment with PMOC sequentially ameliorated hepatic inflammation, apoptosis of hepatocytes, severe liver injury and shock-mediated death in ALF-induced mice. As a mechanism, PMOC inhibited the catalytic activity of TGF-β-activated kinase 1 (TAK1) in a competitive manner with respect to ATP, displaced fluorescent ATP probe from the complex with TAK1, and docked at the ATP-binding active site on the crystal structure of TAK1. Moreover, PMOC inhibited TAK1 auto-phosphorylation, which is an axis in the activating pathways of nuclear factor-κB (NF-κB) or activating protein 1 (AP1), in the liver with ALF in vivo or in primary liver cells stimulated with TLR agonists in vitro. PMOC consequently suppressed TAK1-inducible NF-κB or AP1 activity in the inflammatory injury, an early pathogenesis leading to ALF. The results suggested that PMOC could contribute to the treatment of TLR/MyD88-associated ALF with the ATP-binding site of TAK1 as a potential therapeutic target.
Adenosine Triphosphate
;
Animals
;
Apoptosis
;
Catalytic Domain
;
Chalcone
;
Death, Sudden
;
Escherichia coli
;
Hepatocytes
;
In Vitro Techniques
;
Inflammation
;
Liver
;
Liver Failure, Acute*
;
Mice
;
Myeloid Differentiation Factor 88
;
Phosphotransferases
;
Plants, Medicinal
;
Toll-Like Receptors
9.Predictive Value of Tertiary Lymphoid Structures Assessed by High Endothelial Venule Counts in the Neoadjuvant Setting of Triple-Negative Breast Cancer.
In Hye SONG ; Sun Hee HEO ; Won Seon BANG ; Hye Seon PARK ; In Ah PARK ; Young Ae KIM ; Suk Young PARK ; Jin ROH ; Gyungyub GONG ; Hee Jin LEE
Cancer Research and Treatment 2017;49(2):399-407
PURPOSE: The tertiary lymphoid structure (TLS) is an important source of tumor-infiltrating lymphocytes (TILs), which have a strong prognostic and predictive value in triple-negative breast cancer (TNBC). A previous study reported that the levels of CXCL13 mRNA expression were associated with TLSs, but measuring the gene expression is challenging in routine practice. Therefore, this study evaluated the MECA79-positive high endothelial venule (HEV) densities and their association with the histopathologically assessed TLSs in biopsy samples. In addition, the relationship of TLSs with the CXCL13 transcript levels and clinical outcomes were examined. MATERIALS AND METHODS: A total of 108 TNBC patients treated with neoadjuvant chemotherapy (NAC) were studied. The amounts of TILs and TLSs were measured histopathologically using hematoxylin and eosin–stained slides. The HEV densities and TIL subpopulations were measured by immunohistochemistry for MECA79, CD3, CD8, and CD20. CXCL13mRNA expression levels using a NanoString assay (NanoString Technologies). RESULTS: The mean number of HEVs in pre-NAC biopsies was 12 (range, 0 to 72). The amounts of TILs and TLSs, HEV density, and CXCL13 expression showed robust correlations with each other. A lower pre-NAC clinical T stage, higher TIL and TLS levels, a higher HEV density, CD20-positive cell density, and CXCL13 expression were significant predictors of a pathologic complete response (pCR). Higher CD8-positive cell density and levels of CXCL13 expression were significantly associated with a better disease-free survival rate. CONCLUSION: MECA79-positive HEV density in pre-NAC biopsies is an objective and quantitative surrogate marker of TLS and might be a valuable tool for predicting pCR of TNBC in routine pathology practice.
Biomarkers
;
Biopsy
;
Cell Count
;
Disease-Free Survival
;
Drug Therapy
;
Gene Expression
;
Hematoxylin
;
Humans
;
Immunohistochemistry
;
Lymphocytes, Tumor-Infiltrating
;
Pathology
;
Polymerase Chain Reaction
;
Prognosis
;
RNA, Messenger
;
Triple Negative Breast Neoplasms*
;
Venules*
10.Characterization of Lactobacillus reuteri BCLR-42 and Lactobacillus plantarum BCLP-51 as novel dog probiotics with innate immune enhancing properties.
Eun Jin KIM ; Yeong Im KANG ; Tae Il BANG ; Myoung Han LEE ; Sang Won LEE ; In Soo CHOI ; Chang Seon SONG ; Joong Bok LEE ; Seung Yong PARK
Korean Journal of Veterinary Research 2016;56(2):75-84
Probiotics that are able to provide beneficial effects on animal health have become important ingredients of dog foods. This study was conducted to characterize the probiotic potentials of two strains, Lactobacillus reuteri BCLR-42 and Lactobacillus plantarum BCLP-51, that were derived from feces of healthy dogs and evaluated based on tolerance to low pH and bile acid, antimicrobial activities, enzyme profiles, sensitivity to antibiotics, and innate immune enhancing potentials. Both strains showed survival of more than 90% at pH 3 and 0.2% bile acid and exhibited broad antimicrobial activities against indicator bacteria. Moreover, both strains showed high sensitivity to antibiotics, except vancomycin, metronidazole, and gentamicin. The alkaline phosphatase was negligible (score 0), whereas they showed strong beta galactosidase activity (score range 5 or 3, respectively). The phagocytosis and oxidative burst activities of canine granulocytes were significantly enhanced in response to both strains. These results show that both strains have the capability to act as probiotics and the potential for application as ingredients in dog foods.
Alkaline Phosphatase
;
Animals
;
Anti-Bacterial Agents
;
Bacteria
;
beta-Galactosidase
;
Bile
;
Dogs*
;
Feces
;
Gentamicins
;
Granulocytes
;
Hydrogen-Ion Concentration
;
Lactobacillus plantarum*
;
Lactobacillus reuteri*
;
Lactobacillus*
;
Metronidazole
;
Phagocytosis
;
Probiotics*
;
Respiratory Burst
;
Vancomycin

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