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Nakaya Y, Hayashi K, Suzuki A, Asano R, Hayashi K, Fujita K, Kawabata K, Kobayashi Y, Sato M. Treatment of Intracranial Hemorrhage Induced Hemichorea- Hemiballism by Low-Frequency Repetitive Transcranial Magnetic Stimulation. Acta Neurol Taiwan 2024; 33(2):88-89. [PMID: 37968091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/17/2023]
Abstract
An 80-year-old woman with a history of rheumatoid arthritis, hypertension, and hyperlipidemia, and no family history of hyperkinesis developed suddenly involuntary movement and visited our hospital two-day after onset. Neuro-examination revealed hemichorea-hemiballismus in the right side of the body, including the face (Suppl. video). Blood tests revealed neither hyperglycemia nor acanthocyte. Brain MRI showed acute microbleeding in the left subthalamic nucleus (Figure 1A-C). Although she was treated with haloperidol (max. 4.5 mg/day), hemichorea-hemiballismus did not subside. Repetitive transcranial magnetic stimulation (rTMS) with a low-frequency protocol (LFP) (1 Hz, 1200 pulses, with a stimulus intensity of 90% of the resting motor threshold, 3 days/week for 2-week) was applied to the left precentral knob (Figure 1D). Its effect was drastic, as the symptoms disappeared for half-hour after rTMS. Hemichorea-hemiballism then reappeared but was attenuated by repeated rTMS. The symptoms disappeared after one-month. Subthalamic nucleus lesions can develop hemichorea-hemiballism (1). According to a study on Huntington's disease and diabetic hemichorea-hemiballism, increased thalamocortical drive may increase the excitability of excitatory and inhibitory circuits of the frontal cortex as the etiologies of hyperkinesia (2-3). However, the target points of rTMS in treating hemichorea-hemiballism have not been consistent in literature. Moreover, rTMS with a LFP on the bilateral supplementary motor areas is effective in treating chorea in Huntington's disease (2). Additionally, rTMS on the ipsilateral precentral knob (primary motor cortex) with continuous θ burst stimulation (cTBS), which decreases the excitability and inhibitory cortical circuits, was effective in treating contralateral hemichorea caused by midbrain hemorrhage (3). Similar to cTBS, LFP can suppress cortical excitation (4); therefore, we applied rTMS with LFP on the primary motor cortex to treat hemichorea-hemiballism. Our results were drastic for both short- and long-term efficiency. This is the first report of the efficacy of rTMS with LFP in treating hemichorea-hemiballism caused by encephalorrhagia.
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Affiliation(s)
- Yuka Nakaya
- Department of Rehabilitation Medicine, Fukui General Hospital, 55-16-1 Egami, Fukui-City, Fukui 910- 8561, Japan
| | - Koji Hayashi
- Department of Rehabilitation Medicine, Fukui General Hospital, 55-16-1 Egami, Fukui-City, Fukui 910- 8561, Japan
| | - Asuka Suzuki
- Department of Rehabilitation Medicine, Fukui General Hospital, 55-16-1 Egami, Fukui-City, Fukui 910- 8561, Japan
| | - Rei Asano
- Department of Rehabilitation Medicine, Fukui General Hospital, 55-16-1 Egami, Fukui-City, Fukui 910- 8561, Japan
| | - Kouji Hayashi
- Graduate School of Health Science, Fukui Health Science University, 55-13-1 Egami, Fukui-City, Fukui 910-3190, Japan
| | - Kazuki Fujita
- Graduate School of Health Science, Fukui Health Science University, 55-13-1 Egami, Fukui-City, Fukui 910-3190, Japan
| | - Kaori Kawabata
- Graduate School of Health Science, Fukui Health Science University, 55-13-1 Egami, Fukui-City, Fukui 910-3190, Japan
| | - Yasutaka Kobayashi
- Graduate School of Health Science, Fukui Health Science University, 55-13-1 Egami, Fukui-City, Fukui 910-3190, Japan
| | - Mamiko Sato
- Department of Rehabilitation Medicine, Fukui General Hospital, 55-16-1 Egami, Fukui-City, Fukui 910- 8561, Japan
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Nakaya Y, Hayashi K, Suzuki A, Asano R, Hayashi K, Fujita K, Kawabata K, Kobayashi Y, Sato M. Treatment of Intracranial Hemorrhage Induced Hemichorea- Hemiballism by Low-Frequency Repetitive Transcranial Magnetic Stimulation. Acta Neurol Taiwan 2024; 33(2):93-94. [PMID: 38030220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
An 80-year-old woman with a history of rheumatoid arthritis, hypertension, and hyperlipidemia, and no family history of hyperkinesis developed suddenly involuntary movement and visited our hospital two-day after onset. Neuro-examination revealed hemichorea-hemiballismus in the right side of the body, including the face (Suppl. video). Blood tests revealed neither hyperglycemia nor acanthocyte. Brain MRI showed acute microbleeding in the left subthalamic nucleus (Figure 1A-C). Although she was treated with haloperidol (max. 4.5 mg/day), hemichorea-hemiballismus did not subside. Repetitive transcranial magnetic stimulation (rTMS) with a low-frequency protocol (LFP) (1 Hz, 1200 pulses, with a stimulus intensity of 90% of the resting motor threshold, 3 days/week for 2-week) was applied to the left precentral knob (Figure 1D). Its effect was drastic, as the symptoms disappeared for half-hour after rTMS. Hemichorea-hemiballism then reappeared but was attenuated by repeated rTMS. The symptoms disappeared after one-month. Subthalamic nucleus lesions can develop hemichorea-hemiballism (1). According to a study on Huntington's disease and diabetic hemichorea-hemiballism, increased thalamocortical drive may increase the excitability of excitatory and inhibitory circuits of the frontal cortex as the etiologies of hyperkinesia (2-3). However, the target points of rTMS in treating hemichorea-hemiballism have not been consistent in literature. Moreover, rTMS with a LFP on the bilateral supplementary motor areas is effective in treating chorea in Huntington's disease (2). Additionally, rTMS on the ipsilateral precentral knob (primary motor cortex) with continuous θ burst stimulation (cTBS), which decreases the excitability and inhibitory cortical circuits, was effective in treating contralateral hemichorea caused by midbrain hemorrhage (3). Similar to cTBS, LFP can suppress cortical excitation (4); therefore, we applied rTMS with LFP on the primary motor cortex to treat hemichorea-hemiballism. Our results were drastic for both short- and long-term efficiency. This is the first report of the efficacy of rTMS with LFP in treating hemichorea-hemiballism caused by encephalorrhagia.
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Affiliation(s)
- Yuka Nakaya
- Department of Rehabilitation Medicine, Fukui General Hospital, 55-16-1 Egami, Fukui-City, Fukui 910- 8561, Japan
| | - Koji Hayashi
- Department of Rehabilitation Medicine, Fukui General Hospital, 55-16-1 Egami, Fukui-City, Fukui 910- 8561, Japan
| | - Asuka Suzuki
- Department of Rehabilitation Medicine, Fukui General Hospital, 55-16-1 Egami, Fukui-City, Fukui 910- 8561, Japan
| | - Rei Asano
- Department of Rehabilitation Medicine, Fukui General Hospital, 55-16-1 Egami, Fukui-City, Fukui 910- 8561, Japan
| | - Kouji Hayashi
- Graduate School of Health Science, Fukui Health Science University, 55-13-1 Egami, Fukui-City, Fukui 910-3190, Japan
| | - Kazuki Fujita
- Graduate School of Health Science, Fukui Health Science University, 55-13-1 Egami, Fukui-City, Fukui 910-3190, Japan
| | - Kaori Kawabata
- Graduate School of Health Science, Fukui Health Science University, 55-13-1 Egami, Fukui-City, Fukui 910-3190, Japan
| | - Yasutaka Kobayashi
- Graduate School of Health Science, Fukui Health Science University, 55-13-1 Egami, Fukui-City, Fukui 910-3190, Japan
| | - Mamiko Sato
- Department of Rehabilitation Medicine, Fukui General Hospital, 55-16-1 Egami, Fukui-City, Fukui 910- 8561, Japan
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Ogawa T, Fujita K, Kawabata K, Hori H, Hayashi K, Suzuki A, Nakaya Y, Kobayashi Y. Is it safe to control the car pedal with the lower limb of the unaffected side in patients with stroke? Traffic Inj Prev 2023; 25:27-35. [PMID: 37773056 DOI: 10.1080/15389588.2023.2260914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 09/15/2023] [Indexed: 09/30/2023]
Abstract
OBJECTIVES Few studies have examined motor function in determining the suitability of patients with stroke to resume driving a car. Patients with hemiplegia usually control car pedals with the unaffected lower limb. However, motor control on the unaffected side is also impaired in patients with stroke. This study aimed to clarify the neurophysiological characteristics of pedal switching control during emergency braking in patients with hemiplegia. METHODS The study participants consisted of 10 drivers with left hemiplegia and 10 age-matched healthy drivers. An experimental pedal was used to measure muscle activity and kinematic data during braking, triggered by the light from a light-emitting diode placed in front of the drivers. RESULTS The patient group took the same reaction time as the healthy group. However, from the visual stimulus to the release of the accelerator pedal, the patient group had higher muscle activity in the tibialis anterior and rectus femoris and had faster angular velocities of hip and knee flexion than the healthy group. In addition, the patient group had higher co-contraction activities between flexors and extensors. From the accelerator pedal release to brake contact, the patient group had slower angular velocities of hip adduction, internal rotation, ankle dorsiflexion, internal return, and internal rotation than the healthy group. CONCLUSIONS Patients with hemiplegia exhibited poor control of pedal switching using their unaffected side throughout the pedal-switching task. These results indicate that the safety related to car-pedal control should be carefully evaluated while deciding whether a patient can resume driving a car after a stroke.
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Affiliation(s)
- Tomoki Ogawa
- Department of Health Science, Graduate School of Health Science, Fukui Health Science University, Fukui, Japan
- Department of Physical Therapy Rehabilitation, Fukui General Hospital, Fukui, Japan
| | - Kazuki Fujita
- Graduate School of Health Science, Fukui Health Science University, Fukui, Japan
| | - Kaori Kawabata
- Graduate School of Health Science, Fukui Health Science University, Fukui, Japan
| | - Hideaki Hori
- Graduate School of Health Science, Fukui Health Science University, Fukui, Japan
| | - Koji Hayashi
- Department of Rehabilitation Medicine, Fukui General Hospital, Fukui, Japan
| | - Asuka Suzuki
- Department of Rehabilitation Medicine, Fukui General Hospital, Fukui, Japan
| | - Yuka Nakaya
- Department of Rehabilitation Medicine, Fukui General Hospital, Fukui, Japan
| | - Yasutaka Kobayashi
- Graduate School of Health Science, Fukui Health Science University, Fukui, Japan
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Fujita K, Tsushima Y, Hayashi K, Kawabata K, Sato M, Kobayashi Y. Differences in causes of stiff knee gait in knee extensor activity or ankle kinematics: A cross-sectional study. Gait Posture 2022; 98:187-194. [PMID: 36166956 DOI: 10.1016/j.gaitpost.2022.09.078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/20/2022] [Accepted: 09/19/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND Stiff knee gait (SKG), a common occurrence after the onset of stroke, is caused by hyperactivity of the rectus femoris during the swing phase. Another cause of SKG is the weakness of push-off in hemiparetic gait. Prior research did not consider the effect of the magnitude of knee extensors in their subjects. RESEARCH QUESTION Does the cause of SKG differ between patients with high and low knee extensor activities during the swing phase? METHODS We examined 38 patients with chronic stroke hemiplegia who presented with SKG. After placing an inertia sensor and an electromyogram, patients walked 10 m at a comfortable speed. All patients were categorized per the sign of the principal component 2 (PC2) as a component with large factor loadings of knee extensors attained from the electromyographic amplitude during the early swing phase of the paretic limb. Then, the kinematic parameters of knee flexion and other gait parameters in each group were compared, and a correlation analysis was performed. RESULTS In the high PC2 group, the timing of peak knee flexion during the swing phase was early, and vastus lateralis activity during the preswing phase negatively correlated with the knee-flexion angle during the swing phase. In the low PC2 group, the angular velocity of ankle plantar flexion at the toe-off was slow, which positively correlated with the knee-flexion angle during the swing phase. SIGNIFICANCE The cause of SKG could be an inappropriate activity of the vastus lateralis rather than the rectus femoris in patients with high knee extensor activity and slow plantar-flexion velocity at toe-off in patients with low knee extensor activity. Not all causes of SKG in patients with hemiplegia are common, and different treatment strategies are needed per the individuality of spastic knee extensor activity.
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Affiliation(s)
- Kazuki Fujita
- Graduate School of Health Science, Fukui Health Science University, Fukui-city, Fukui, Japan.
| | - Yuichi Tsushima
- Department of Physical Therapy Rehabilitation, Fukui General Hospital, Fukui-city, Fukui, Japan
| | - Koji Hayashi
- Department of Rehabilitation Medicine, Fukui General Hospital, Fukui-city, Fukui, Japan
| | - Kaori Kawabata
- Graduate School of Health Science, Fukui Health Science University, Fukui-city, Fukui, Japan
| | - Mamiko Sato
- Department of Rehabilitation Medicine, Fukui General Hospital, Fukui-city, Fukui, Japan
| | - Yasutaka Kobayashi
- Graduate School of Health Science, Fukui Health Science University, Fukui-city, Fukui, Japan
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Takahashi N, Umezawa R, Kishida K, Matsushita H, Yamamoto T, Ishikawa Y, Takeda K, Suzuki Y, Kawabata K, Teramura S, Jingu K. Radiotherapy for Esophageal Cancer in Patients ≥80 years: A Retrospective Study in a Single Institution. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Deyama J, Nakamura T, Ono S, Kobayashi A, Horikoshi T, Yoshizaki T, Watanabe Y, Uematsu M, Kobayashi T, Fujioka D, Saito Y, Nakamura K, Kawabata K, Obata J, Kugiyama K. P6415Combined assessment of contrast-enhanced ultrasound of carotid plaque and carotid intima-media thickness improves the prediction of future coronary events in patients with coronary artery disease. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.1009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
This study examined whether combined ultrasound assessment of plaque size and intraplaque neovascularization in the carotid artery had an additive effect for predicting coronary events in patients with coronary artery disease (CAD).
Methods
CEUS of the carotid plaques using perfluorobutane microbubbles as an ultrasound contrast agent and Ultrasound assessment of carotid plaque maximum intima-media thickness (max IMT) was performed in 221 patients with CAD and carotid plaque IMT over 2mm. Intraplaque neovascularization was identified on the basis of microbubbles within the carotid plaque and graded as: G0, not visible; G1, moderate; or G2, extensive microbubbles. All study patients were followed up prospectively for 5 years or until the occurrence of a cardio-vascular event.
Result
During the follow-up period, 53 coronary events (9 cardiac deaths, 44 ACSs) were occurred. Multivariate Cox hazards analysis showed that max IMT and CEUS grade were independent predictors of coronary events (HR 1.59, 95% CI 1.15–2.21 p=0.005 and HR 2.26, 95% CI 1.52–3.36 p<0.01) that were independent of age, gender, diabetes and LDL-C levels. C-statistics for logistic models predicting future coronary events using conventional risk factors with or without the addition of max IMT alone, CEUS grade alone, and both max IMT and CEUS grade in combination (area under the ROC curve; 0.55,0.61,0.69 and 0.71, respectively). The addition of the plaque enhanced intensity to traditional risk factors resulted in net reclassification improvement (NRI) and integrated discrimination improvement (IDI) (NRI 0.42, p=0.002; and IDI 0.04, p=0.002).
CEUS grade and ROC curve for 3models
Conclusions
Combined ultrasound assessment of carotid plaque IMT and intraplaque neovascularization has an additive value on the prediction of coronary events.
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Affiliation(s)
- J Deyama
- University of Yamanashi, Internal Medicine II, Yamanashi, Japan
| | - T Nakamura
- University of Yamanashi, Internal Medicine II, Yamanashi, Japan
| | - S Ono
- University of Yamanashi, Internal Medicine II, Yamanashi, Japan
| | - A Kobayashi
- University of Yamanashi, Internal Medicine II, Yamanashi, Japan
| | - T Horikoshi
- University of Yamanashi, Internal Medicine II, Yamanashi, Japan
| | - T Yoshizaki
- University of Yamanashi, Internal Medicine II, Yamanashi, Japan
| | - Y Watanabe
- University of Yamanashi, Internal Medicine II, Yamanashi, Japan
| | - M Uematsu
- University of Yamanashi, Internal Medicine II, Yamanashi, Japan
| | - T Kobayashi
- University of Yamanashi, Internal Medicine II, Yamanashi, Japan
| | - D Fujioka
- University of Yamanashi, Internal Medicine II, Yamanashi, Japan
| | - Y Saito
- University of Yamanashi, Internal Medicine II, Yamanashi, Japan
| | - K Nakamura
- University of Yamanashi, Internal Medicine II, Yamanashi, Japan
| | - K Kawabata
- University of Yamanashi, Internal Medicine II, Yamanashi, Japan
| | - J Obata
- University of Yamanashi, Internal Medicine II, Yamanashi, Japan
| | - K Kugiyama
- University of Yamanashi, Internal Medicine II, Yamanashi, Japan
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7
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Yoshida H, Komiya A, Ohtsuki R, Kusaka-Kikushima A, Sakai S, Kawabata K, Kobayashi M, Nakamura S, Nagaoka A, Sayo T, Okada Y, Takahashi Y. Relationship of hyaluronan and HYBID (KIAA1199) expression with roughness parameters of photoaged skin in Caucasian women. Skin Res Technol 2018. [PMID: 29536579 DOI: 10.1111/srt.12467] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Hyaluronan (HA) is an important constituent of extracellular matrix (ECM) in the skin, and HA degradation mediated by HYBID (KIAA1199) is suggested to be implicated in facial skin wrinkling in Japanese women. Ethnic difference in skin wrinkle formation is known between Caucasian and Japanese women, but no information is available for the relations of HA and HYBID expression levels with skin wrinkling in Caucasian women. METHODS The skin surface roughness at the eye corner of the Caucasian female subjects was measured, and the skin specimens biopsied from the same areas were subjected to microarray gene analysis, HA staining, and immunohistochemistry for HYBID. RESULTS Among the ECM genes and those related to ECM metabolism, only HYBID expression levels positively correlated with the skin roughness parameters. When the skin sample groups with high expression of HYBID or low expression of HYBID were compared, the HA staining intensity and the ratio of HYBID-immunoreactive cells to total cells in the superficial dermis were significantly reduced and increased in the high-HYBID-expression group compared with the low-HYBID-expression group, respectively. CONCLUSION Our data suggest that like Japanese women, HYBID-mediated reduction of HA in the superficial dermis is involved in the formation of wrinkles in Caucasian women.
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Affiliation(s)
- H Yoshida
- Biological Science Research, Kao Corporation, Odawara-shi, Kanagawa, Japan
| | - A Komiya
- Biological Science Research, Kao Corporation, Odawara-shi, Kanagawa, Japan
| | - R Ohtsuki
- Makeup Products Research, Kao Corporation, Odawara-shi, Kanagawa, Japan
| | - A Kusaka-Kikushima
- Biological Science Research, Kao Corporation, Odawara-shi, Kanagawa, Japan
| | - S Sakai
- Health Beauty Products Research, Kao Corporation, Odawara-shi, Kanagawa, Japan
| | - K Kawabata
- Biological Science Research, Kao Corporation, Odawara-shi, Kanagawa, Japan
| | - M Kobayashi
- Biological Science Research, Kao Corporation, Odawara-shi, Kanagawa, Japan
| | - S Nakamura
- Biological Science Research, Kao Corporation, Odawara-shi, Kanagawa, Japan
| | - A Nagaoka
- Safety Science Research, Kao Corporation, Odawara-shi, Kanagawa, Japan
| | - T Sayo
- Biological Science Research, Kao Corporation, Odawara-shi, Kanagawa, Japan
| | - Y Okada
- Department of Pathophysiology for Locomotive and Neoplastic Diseases, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Y Takahashi
- Biological Science Research, Kao Corporation, Odawara-shi, Kanagawa, Japan
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8
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Imai K, Masuda M, Watanabe H, Kamagata K, Katahira K, Ogura A, Ohdake R, Kawabata K, Yokoi T, Hara K, Bagarinao E, Atsuta N, Nakamura R, Aoki S, Katsuno M, Ohira H, Sobue G. Decision making alteration and characteristic connectivity changes in amyotrophic lateral sclerosis. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Ogura A, Masuda M, Imai K, Ohdake R, Tanaka Y, Yokoi T, Kawabata K, Hara K, Nakamura R, Atsuta N, Watanabe H, Katsuno M, Sobue G. Characteristics of semantic impairment in ALS associated with jukujikun. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Yokoi T, Watanabe H, Aya O, Kawabata K, Imai K, Hara K, Masuda M, Ohdake R, Yamaguchi H, Miyao S, Katsuno M, Okamura N, Yanai K, Sobue G. The spatial accumulation patterns in normal elderly using 18F-THK5351 pet. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Eguchi N, Kawabata K, Goto H. Synthesis of electro-optically active polymer composite of poly[2,2'-bis(3,4-ethylenedioxythiophene)-alt-fluorene]/hydroxypropyl cellulose showing liquid crystal structure. EXPRESS POLYM LETT 2017. [DOI: 10.3144/expresspolymlett.2017.80] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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12
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Kawabata K, Suzuki T, Otsuka N, Ishii M. Cortical reflex myoclonus. Anaesthesia 2016; 71:1500-1501. [PMID: 27870185 DOI: 10.1111/anae.13725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- K Kawabata
- Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - T Suzuki
- Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - N Otsuka
- Showa University Koto Toyosu Hospital, Tokyo, Japan
| | - M Ishii
- Showa University Koto Toyosu Hospital, Tokyo, Japan
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13
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Nakano K, Marshall S, Taira S, Sato Y, Tomomatsu J, Sasaki T, Shimbashi W, Fukushima H, Yonekawa H, Mitani H, Kawabata K, Takahashi S. A comparison of cetuximab-containing regimens for recurrent/metastatic squamous cell head and neck carcinoma: the clinical significance of weekly paclitaxel and cetuximab. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw376.55] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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14
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Yamada T, Kawakami S, Yoshida Y, Kawamura H, Ohta S, Abe K, Hamada H, Dohi S, Ichizuka K, Takita H, Baba Y, Matsubara S, Mochizuki J, Unno N, Maegawa Y, Maeda M, Inubashiri E, Akutagawa N, Kubo T, Shirota T, Oda Y, Yamada T, Yamagishi E, Nakai A, Fuchi N, Masuzaki H, Urabe S, Kudo Y, Nomizo M, Sagawa N, Maeda T, Kamitomo M, Kawabata K, Kataoka S, Shiozaki A, Saito S, Sekizawa A, Minakami H. Influenza 2014–2015 among pregnant Japanese women: primiparous vs multiparous women. Eur J Clin Microbiol Infect Dis 2016; 35:665-71. [DOI: 10.1007/s10096-016-2585-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 01/13/2016] [Indexed: 11/28/2022]
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15
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Nukuda A, Sasaki C, Ishihara S, Mizutani T, Nakamura K, Ayabe T, Kawabata K, Haga H. Stiff substrates increase YAP-signaling-mediated matrix metalloproteinase-7 expression. Oncogenesis 2015; 4:e165. [PMID: 26344692 PMCID: PMC4767936 DOI: 10.1038/oncsis.2015.24] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 06/17/2015] [Accepted: 07/25/2015] [Indexed: 02/07/2023] Open
Abstract
Abnormally stiff substrates have been shown to trigger cancer progression. However, the detailed molecular mechanisms underlying this trigger are not clear. In this study, we cultured T84 human colorectal cancer cells on plastic dishes to create a stiff substrate or on collagen-I gel to create a soft substrate. The stiff substrate enhanced the expression of matrix metalloproteinase-7 (MMP-7), an indicator of poor prognosis. In addition, we used polyacrylamide gels (2, 67 and 126 kPa) so that the MMP-7 expression on the 126-kPa gel was higher compared with that on the 2-kPa gel. Next, we investigated whether yes-associated protein (YAP) affected the MMP-7 expression. YAP knockdown decreased MMP-7 expression. Treatment with inhibitors of epidermal growth factor receptor (EGFR) and myosin regulatory light chain (MRLC) and integrin-α2 or integrin-β1 knockdown downregulated MMP-7 expression. Finally, we demonstrated that YAP, EGFR, integrin-α2β1 and MRLC produced a positive feedback loop that enhanced MMP-7 expression. These findings suggest that stiff substrates enhanced colorectal cancer cell viability by upregulating MMP-7 expression through a positive feedback loop.
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Affiliation(s)
- A Nukuda
- Transdisciplinary Life Science Course, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Japan
| | - C Sasaki
- Transdisciplinary Life Science Course, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Japan
| | - S Ishihara
- Transdisciplinary Life Science Course, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Japan.,Research Center for Cooperative Projects, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - T Mizutani
- Transdisciplinary Life Science Course, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Japan
| | - K Nakamura
- Transdisciplinary Life Science Course, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Japan
| | - T Ayabe
- Transdisciplinary Life Science Course, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Japan
| | - K Kawabata
- Transdisciplinary Life Science Course, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Japan
| | - H Haga
- Transdisciplinary Life Science Course, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Japan.,Research Center for Cooperative Projects, Hokkaido University Graduate School of Medicine, Sapporo, Japan
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Yamada T, Abe K, Baba Y, Inubashiri E, Kawabata K, Kubo T, Maegawa Y, Fuchi N, Nomizo M, Shimada M, Shiozaki A, Hamada H, Matsubara S, Akutagawa N, Kataoka S, Maeda M, Masuzaki H, Sagawa N, Nakai A, Saito S, Minakami H. Vaccination during the 2013-2014 influenza season in pregnant Japanese women. Eur J Clin Microbiol Infect Dis 2014; 34:543-8. [PMID: 25311988 DOI: 10.1007/s10096-014-2259-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Accepted: 09/29/2014] [Indexed: 11/24/2022]
Abstract
This questionnaire survey was conducted at 11 hospitals in Japan to determine vaccination coverage against seasonal influenza and the prevalence rate of influenza among pregnant Japanese women. Of 2,808 postpartum women who gave birth at the 11 hospitals during the study period from March 1, 2014, to July 31, 2014, 1,713 (61 %) participated in this study and 876 (51 %) reported having received vaccination against influenza in or after October 2013. Women aged <25 years had a significantly lower vaccination rate than those aged ≥25 years (31 % vs. 53 %, respectively; p = 0.0000). Eighty-seven (5.1 %) and 1,626 (94.9 %) women did and did not contract influenza, respectively. Although prior birth did not affect overall vaccination coverage (50 % for primiparous vs. 53 % for multiparous), multiparous women had a significantly higher rate of contracting influenza than primiparous women, irrespective of vaccination status (5.6 % vs. 2.2 % [p = 0.0216] and 9.7 % vs. 3.5 % [p = 0.0003] for women with and without vaccination, respectively). The 2013-2014 vaccination program significantly reduced the influenza infection rate by 35 % (3.9 % vs. 6.3 % for women with and without vaccination, respectively; p = 0.0272). Seventy-two (83 %) of the 87 women took antiviral agents for the treatment of influenza and two (2.3 %) required hospitalization. These results suggested that pregnant Japanese women had a high level of concern regarding seasonal influenza. However, campaigns targeting young pregnant Japanese women, as well as multiparous women, for vaccination are needed in order to further reduce the incidence of influenza among pregnant Japanese women.
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Affiliation(s)
- T Yamada
- Department of Obstetrics and Gynecology, Hokkaido University Graduate School of Medicine, N15W7, Kita-ku, Sapporo, 060-8638, Japan,
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Kawabata K, Kawajiri H, Takashima T, Nakano T, Mitukawa Y, Kawakami N. Reduction of Paclitaxel-Related Peripheral Sensory Neuropathy by Gosha-Jinki-Gan or Carbon Dioxide Feet and Hand Bathing. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt460.68] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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18
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Ito D, Endo K, Tsujikawa K, Hattori M, Hirayama T, Nishi R, Kawabata K, Morozumi S, Yasui K, Hasegawa Y. Evaluation of left ventricular diastolic dysfunction of acute ischemic stroke patients by transthoracic echocardiography. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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19
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Hasegawa Y, Kawabata K, Nakai N, Tujimoto M, Takahashi A. Paralytic mydriasis in Bickerstaff brainstem encephalitis. Report of three cases. Auton Neurosci 2013. [DOI: 10.1016/j.autneu.2013.05.112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Kawabata K, Kobayashi M, Kusaka-Kikushima A, Akasaka E, Mabuchi T, Fukui T, Sugiyama Y, Takekoshi S, Miyasaka M, Ozawa A, Sakai S. A new objective histological scale for studying human photoaged skin. Skin Res Technol 2013; 20:155-63. [PMID: 23800248 DOI: 10.1111/srt.12099] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/08/2013] [Indexed: 11/29/2022]
Abstract
BACKGROUND A quantitative understanding of the histological alteration of the skin is important for assessing the severity of photoaging. METHODS We performed Elastica-van Gieson staining and immunohistochemistry for decorin on 34 facial skin sections. We evaluated the alteration of collagen fibers and decorin (a modulator for collagen fibrillogenesis), according to the 5 grades of morphological change in elastic fibers that was established by Kligman (1969). The objectivity of a stage (Stages I-VI), which was established in this study, was evaluated using weighted kappa statistical analysis based on the degree of agreement in stage determination by 11 observers using a blind procedure. Correlation between the crow's-feet-area wrinkles grades of another 26 women and stages was also analyzed. RESULTS The initial alteration of elastic fibers was observed in the deep dermis. Decorin was not detected in very severely altered skin. Based on the combination of changes in the elastic fibers, collagenic fibers, and decorin, skin tissues were categorized into 6 stages according to severity. The statistical analysis showed almost perfect agreement between observers. Significant positive correlation between stages and wrinkle scores was found. CONCLUSIONS We propose a new objective histological scale that is useful for assessing the severity of photoaging.
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Affiliation(s)
- K Kawabata
- Innovative Beauty Science Laboratory, Kanebo Cosmetics Inc., Odawara, Kanagawa, Japan
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21
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Kastrissios H, Rohatagi S, Moberly J, Truitt K, Gao Y, Wada R, Takahashi M, Kawabata K, Salazar D. Development of a Predictive Pharmacokinetic Model for a Novel Cyclooxygenase-2 Inhibitor. J Clin Pharmacol 2013; 46:537-48. [PMID: 16638737 DOI: 10.1177/0091270006287122] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A predictive population pharmacokinetic model was developed for a novel cyclooxygenase-2 (COX-2) inhibitor CS-706, using data from 130 subjects in 3 phase 1 trials after single or multiple doses of CS-706 (2- to 800-mg doses daily, up to 14 days) and validated using sparse data from a separate study. A 2-compartment model described the data. Typical apparent clearance (CL/F) was 47.2 L/h and was reduced by 43% at doses greater than 200 mg. Apparent clearance was decreased by 38% in female subjects and by 64% and 15%, respectively, in poor/intermediate CYP 2D6 and poor CYP 2C9 metabolizers. Typical apparent volume of the central compartment was 166 L and increased with body weight. Bioavailability increased by 42% after nighttime doses and decreased saturably with increasing dose (50% reduction at 221 mg). Predicted exposures in Japanese subjects were reduced relative to whites because of a lower frequency of poor metabolizers. The model may aid in optimizing the design of future studies and predicting exposures in other subpopulations.
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Sasada M, Uemura M, Fukazawa Y, Itoh R, Kawabata K, Yoshida M. 4-year optical-infrared photometric and polarimetric behaviors of a gamma-ray blazar 3C 454.3. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20136106009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Okada K, Tsuchida T, Ishiyama A, Taniguchi T, Suzuki S, Horiuchi Y, Matsuo Y, Yoshizawa N, Suganuma T, Omae M, Kubota M, Hirasawa T, Yamamoto Y, Inamori M, Yamamoto N, Nakajima A, Fujisaki J, Hoshino E, Kawabata K, Igarashi M. Endoscopic mucosal resection and endoscopic submucosal dissection for en bloc resection of superficial pharyngeal carcinomas. Endoscopy 2012; 44:556-64. [PMID: 22638778 DOI: 10.1055/s-0032-1309720] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND STUDY AIM Endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD) are being used increasingly to treat superficial oropharyngeal and hypopharyngeal carcinomas. The aim of this study was to clarify whether ESD provided better results than EMR for en bloc and complete resection of superficial pharyngeal carcinomas. PATIENTS AND METHODS A total of 76 superficial pharyngeal carcinomas in 59 consecutively treated patients were included. Patients underwent either conventional EMR (using a transparent cap or strip biopsy) (n = 45 lesions) or ESD (n = 31 lesions) between October 2006 and January 2011. The rates of en bloc resection, complete resection (defined as en bloc resection with tumor-free margins), major complications, and local recurrence were evaluated retrospectively as the therapeutic outcomes. RESULTS ESD yielded significantly higher rates of both en bloc and complete resection compared with EMR (en bloc 77.4 % [24/31] vs. 37.8 % [17/45], P = 0.0002; complete 54.8 % [17/31] vs. 28.9 % [13/45], P = 0.0379). ESD was more frequently complicated by severe laryngeal edema (4/21 [19.0 %] vs. 1/31 [3.2 %], P = 0.1446) and was also more time-consuming (124.9 ± 65.1 minutes vs. 57.2 ± 69.6 minutes; P = 0.0014). Local recurrence was observed more often after EMR than after ESD (3/45 [6.7 %] vs. 0/31 [0 %]), although this difference did not reach statistical significance (P = 0.2658). CONCLUSIONS ESD appears to be a superior method of endoscopic resection of superficial pharyngeal carcinomas for achieving both en bloc and complete resection, although these benefits were also associated with a higher incidence of complications and a significantly longer procedure time. Large prospective studies are needed to compare ESD with conventional EMR for superficial pharyngeal carcinomas.
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Affiliation(s)
- K Okada
- Division of Endoscopy, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
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Yamanishi T, Tachibana H, Oguru M, Kawabata K, Danno D, Oku T, Hashimoto M, Matsui K, Matsubara K, Murata N. 1.065 PREVALENCE AND CLINICAL CORRELATES OF ANXIETY IN PARKINSON'S DISEASE. Parkinsonism Relat Disord 2012. [DOI: 10.1016/s1353-8020(11)70179-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Iguchi K, Sakurai F, Tomita K, Katayama K, Yamaguchi T, Kawabata K, Tagawa M, Kawabata M, Shirakawa T, Mizuguchi H. Efficient antitumor effects of carrier cells loaded with a fiber-substituted conditionally replicating adenovirus on CAR-negative tumor cells. Cancer Gene Ther 2011; 19:118-25. [PMID: 22076042 DOI: 10.1038/cgt.2011.74] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Carrier cells delivering a conditionally replicating adenovirus (CRAd), which selectively replicates in tumor cells and induces tumor cell lysis, have promising potential for treatment of cancer because CRAd-loaded carrier cells evade inhibition by neutralizing anti-adenovirus (Ad) antibodies and because the carrier cells are locally retained at the injection point after local injection. A previous study by Hamada et al. demonstrated that carrier cells (CRAd-containing cell fragments derived from the carrier cells) are engulfed into the target cells, probably through a pathway independent of the primary receptor for Ad, the coxsackievirus and Ad receptor (CAR) (Mol Ther, 15: 1121-1128; 2007); however, it remains to be elucidated whether carrier cells infected with a conventional CRAd, which is composed of subgroup-C Ad serotype-5 (Ad5), mediate antitumor effects on CAR-negative cells. In order to examine whether carrier cells delivering a conventional CRAd (Carrier-F5) induce lysis of CAR-negative tumor cells, CAR-positive and CAR-negative tumor cells were incubated with Carrier-F5. Carrier-F5 mediated efficient killing of CAR-positive tumor cells; however, CAR-negative tumor cells were almost refractory to Carrier-F5. On the other hand, carrier cells loaded with a fiber-substituted CRAd containing fiber proteins of Ad serotype-35 (Ad35) (CRAd-F35), which binds to human CD46 for infection, showed efficient killing of both CAR-positive and CAR-negative tumor cells. Intra-tumoral injection of carrier cells loaded with CRAd-F35 (Carrier-F35) also resulted in efficient regression of both CAR-positive and CAR-negative tumors. These results demonstrated that the expression levels of receptors for Ad are an important factor for CRAd-loaded carrier cell-mediated cancer therapy, and that Carrier-F35 would have potential as a cancer treatment for not only CAR-positive tumors but also CAR-negative tumors.
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Affiliation(s)
- K Iguchi
- Laboratory of Gene Transfer and Regulation, National Institute of Biomedical Innovation, Osaka, Japan
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Ogura T, Yoshioka Y, Yamashita K, Kawabata K, Mizuguchi H, Yoshikawa T, Itoh N, Tsutsumi Y. In vitro evaluation of the embryotoxic potency of amorphous nanosilica. Toxicol Lett 2011. [DOI: 10.1016/j.toxlet.2011.05.856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Tachibana H, Yamanishi T, Hashimoto M, Oku T, Danno D, Kawabata K, Lu S, Kodama N, Takeda M. P4-22 Electrophysiological components predicting levodopa responsiveness in patients with Parkinson's disease. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60517-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Abstract
The reduction in visibility in x-ray grating interferometry based on the Talbot effect is formulated by the autocorrelation function of spatial fluctuations of a wavefront due to unresolved micron-size structures in samples. The experimental results for microspheres and melamine sponge were successfully explained by this formula with three parameters characterizing the wavefront fluctuations: variance, correlation length, and the Hurst exponent. The ultra-small-angle x-ray scattering of these samples was measured, and the scattering profiles were consistent with the formulation. Furthermore, we discuss the relation between the three parameters and the features of the micron-sized structures. The visibility-reduction contrast observed by x-ray grating interferometry can thus be understood in relation to the structural parameters of the microstructures.
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Affiliation(s)
- W Yashiro
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, the University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan.
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Nishioka T, Ishihara S, Miyai Y, Mizutani T, Kawabata K, Shirato H, Yamazaki R, Yasuda M, Haga H, Kawabata K. Increased Invasiveness and Non-spheroid Morphology Change of Human Lung Adenocarcinoma Cells That Survived 10 Gy Irradiation. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.1233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Gotoh T, Albrecht E, Teuscher F, Kawabata K, Sakashita K, Iwamoto H, Wegner J. Differences in muscle and fat accretion in Japanese Black and European cattle. Meat Sci 2009; 82:300-8. [DOI: 10.1016/j.meatsci.2009.01.026] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2008] [Revised: 01/28/2009] [Accepted: 01/30/2009] [Indexed: 10/21/2022]
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Morimoto K, Kawabata K, Kunii S, Hamano K, Saito T, Tonomura B. Characterization of Type I Collagen Fibril Formation Using Thioflavin T Fluorescent Dye. J Biochem 2009; 145:677-84. [DOI: 10.1093/jb/mvp025] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kitagawa Y, Fukata S, Kawabata K, Fujishiro K. Open enterostomy after gastrectomy for gastric malignancy in adult subjects. Crit Rev Oncol Hematol 2008. [DOI: 10.1016/s1040-8428(08)70083-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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33
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Kenjo A, Saito T, Tsuchiya T, Sato Y, Kimura T, Ogata T, Ohto H, Yasuda H, Kawabata K, Gotoh M. PLATELET-TRANSFUSION REFRACTORINESS FOLLOWING LIVING RELATED LIVER TRANSPLANTATION. Transplantation 2008. [DOI: 10.1097/01.tp.0000330716.08578.d5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Li Z, Zhang S, Diao Z, Ding Y, Tang X, Apalkov DM, Yang Z, Kawabata K, Huai Y. Perpendicular spin torques in magnetic tunnel junctions. Phys Rev Lett 2008; 100:246602. [PMID: 18643606 DOI: 10.1103/physrevlett.100.246602] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2007] [Indexed: 05/26/2023]
Abstract
We quantitatively determine a perpendicular spin torque in magnetic tunnel junctions by measuring the room-temperature critical switching current at various magnetic fields and current pulse widths. We find that the magnitude of the torque is proportional to the product of the current density and the bias voltage, and the direction of the torque reverses as the polarity of the voltage changes. By taking into account the energy-dependent inelastic scattering of tunnel electrons, we formulate the bias dependence of the perpendicular spin torque which is in qualitative agreement with the experimental results.
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Affiliation(s)
- Z Li
- Grandis Inc., 1123 Cadillac Court, Milpitas, California 95035, USA
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35
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Ezuki S, Kanno T, Ohto H, Herschel L, Ito T, Kawabata K, Seino O, Ikeda K, Nollet KE. Survival and recovery of apheresis platelets stored in a polyolefin container with high oxygen permeability. Vox Sang 2008; 94:292-8. [PMID: 18331381 DOI: 10.1111/j.1423-0410.2008.01042.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND OBJECTIVES Oxygen permeability is important in platelet storage media. We compared a new polyolefin container with enhanced oxygen permeability (PO-80; Kawasumi, Tokyo, Japan) to a widely used alternative (PL2410; Baxter Healthcare, Deerfield, IL, USA). MATERIALS AND METHODS In vitro characteristics of paired platelet concentrates (PCs; mean 4.2 x 10(11)/250 ml plasma/bag) stored in PO-80 or PL2410 were assessed through 9 days of storage. In vivo recovery and survival of 7-day-old autologous PCs were assessed according to the Murphy method. RESULTS Laboratory assessment of platelet quality favoured PO-80 during 9 days of storage with statistically significant differences in glucose consumption (2.75 vs. 4.93 mmol/10(12)/24 h in the interval 120-168 h), lactate generation (4.37 vs. 8.11 mmol/10(12)/24 h in the interval 120-168 h), pressure of oxygen (pO(2)) (59.3 vs. 38.1 mmHg at day 1), and HCO(3)(-) (14.7 vs. 13.4 mmol/l at day 1). Statistically significant differences were not seen in aggregation, hypotonic shock response or pH. In vivo assessment of autologous platelets stored 7 days in the PO-80 container revealed that recovery was 82.1% and survival was 81.0% of fresh control. Seven-day stored PCs in PO-80 were shown in vivo to be non-inferior to fresh platelets, with upper confidence limits (UCL(95)) in recovery and survival of stored PCs below the maximum acceptable difference (MAD); 15.3% UCL(95) < 20.4% MAD and 2.1 days UCL(95) < 2.1 days MAD. CONCLUSIONS The in vitro characteristics of PCs stored in a highly oxygen-permeable container were stable at least 7 days. The in vivo study supports the suitability of PO-80 for 7-day platelet storage.
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Affiliation(s)
- S Ezuki
- Division of Blood Transfusion and Transplantation Immunology, Fukushima Medical University Hospital, Fukushima, Japan
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Nishioka T, Haga H, Miyai Y, Yasuda M, Tsutsumi K, Yamazaki R, Shirato H, Kawabata K. Three-Dimensional Tumor Cell Movement in Collagen Gel: Mesenchymal-to-Amoeboid Transition in a Sub-Clone That Survived 10 Gy Irradiation. Int J Radiat Oncol Biol Phys 2007. [DOI: 10.1016/j.ijrobp.2007.07.270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Hagihara K, Kurihara A, Kawai K, Kazui M, Takahashi M, Kawabata K, Farid NA, Ikeda T. Absorption, distribution and excretion of the new thienopyridine agent prasugrel in rats. Xenobiotica 2007; 37:788-801. [PMID: 17620223 DOI: 10.1080/00498250701397721] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Prasugrel is converted to the pharmacologically active metabolite after oral dosing in vivo. In this study, (14)C-prasugrel or prasugrel was administered to rats at a dose of 5 mg kg(-1). After oral and intravenous dosing, the values of AUC(0-infinity) of total radioactivity were 36.2 and 47.1 microg eqx h ml(-1), respectively. Oral dosing of unlabeled prasugrel showed the second highest AUC(0-8) of the active metabolite of six metabolites analyzed. Quantitative whole body autoradiography showed high radioactivity concentrations in tissues for absorption and excretion at 1 h after oral administration, and were low at 72 h. The excretion of radioactivity in the urine and feces were 20.2% and 78.7%, respectively, after oral dosing. Most radioactivity after oral dosing was excreted in bile (90.1%), which was reabsorbed moderately (62.4%). The results showed that orally administered prasugrel was rapidly and fully absorbed and efficiently converted to the active metabolite with no marked distribution in a particular tissue.
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Affiliation(s)
- K Hagihara
- Drug Metabolism and Pharmacokinetics Research Laboratories, Daiichi Sankyo Co., Ltd., Tokyo, Japan.
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Murakami S, Sakurai F, Kawabata K, Okada N, Fujita T, Yamamoto A, Hayakawa T, Mizuguchi H. Interaction of penton base Arg-Gly-Asp motifs with integrins is crucial for adenovirus serotype 35 vector transduction in human hematopoietic cells. Gene Ther 2007; 14:1525-33. [PMID: 17805302 DOI: 10.1038/sj.gt.3303019] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Most subgroup B adenoviruses (Ads), including adenovirus (Ad) serotype 35 (Ad35), bind to human CD46 as a receptor; however, the infection processes of subgroup B Ads following attachment to CD46 remain to be elucidated. Subgroup B Ads possess Arg-Gly-Asp (RGD) motifs in the penton base, similarly to subgroup C Ad serotypes 2 and 5. In this study, we examined the role of penton base RGD motifs in Ad35 vector-mediated transduction in human hematopoietic cells. Inhibition of interaction between integrins and the RGD motifs by divalent cation chelation and a synthetic RGD peptide reduced the transduction efficiencies of Ad35 vectors; however, the amounts of cell-associated vector DNA of Ad35 vectors at 4 or 37 degrees C were not decreased by divalent cation chelation or the RGD peptide. Mutation of penton base RGD motifs reduced the transduction efficiencies of Ad35 vectors, although the amounts of cell-associated vector DNA of Ad35 vectors at 4 or 37 degrees C were not altered by mutation of penton base RGD motifs in Ad35 vectors. Furthermore, preincubation with several types of anti-integrin antibodies significantly inhibited Ad35 vector-mediated transduction. These results suggest that interaction between integrins and penton base RGD motifs plays a crucial role in Ad35 vector-mediated transduction in hematopoietic cells, probably in the post-internalization steps.
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Affiliation(s)
- S Murakami
- Laboratory of Gene Transfer and Regulation, National Institute of Biomedical Innovation, Ibaraki City, Osaka, Japan
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39
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Kawabata K, Tashiro K, Sakurai F, Osada N, Kusuda J, Hayakawa T, Yamanishi K, Mizuguchi H. Positive and negative regulation of adenovirus infection by CAR-like soluble protein, CLSP. Gene Ther 2007; 14:1199-207. [PMID: 17538635 DOI: 10.1038/sj.gt.3302975] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Coxsackievirus and adenovirus receptor (CAR) is a member of the immunoglobulin (Ig) superfamily and a component of epithelial tight junction. CAR also functions as a primary receptor for coxsackievirus B and adenovirus (Ad) infection. In this study, we report the identification of a novel protein, CAR-like soluble protein (CLSP), which is closely related to CAR. Mouse CLSP (mCLSP) was composed of 390 amino acids, including three Ig domains, and showed strong homology to the IgV domain of CAR. Interestingly, mCLSP lacks a transmembrane domain, indicating that this is a soluble protein. mCLSP mRNA was detected primarily in the brain and ovary. When mCLSP cDNA was introduced into SK HEP-1 cells, which were known to be CAR positive and easily infected with Ad vector, the infection with Ad vector was severely inhibited. On the other hand, mCLSP promoted the infection with Ad vector in CAR-negative NIH3T3 cells. Furthermore, recombinant CLSP directly bound to Ad and inhibited the Ad vector-mediated transduction in SK HEP-1 cells. Computational analysis for a genome database showed that the CLSP gene is rodent-specific, and that human and bovine lack this gene. These results suggest that CLSP may play a role in the antiviral defense of the host in rodent animals.
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Affiliation(s)
- K Kawabata
- Laboratory of Gene Transfer and Regulation, National Institute of Biomedical Innovation, Osaka, Japan
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Kurachi S, Tashiro K, Sakurai F, Sakurai H, Kawabata K, Yayama K, Okamoto H, Nakagawa S, Mizuguchi H. Fiber-modified adenovirus vectors containing the TAT peptide derived from HIV-1 in the fiber knob have efficient gene transfer activity. Gene Ther 2007; 14:1160-5. [PMID: 17508008 DOI: 10.1038/sj.gt.3302969] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The interaction between viral capsid proteins and specific molecules exposed on the plasma membrane of the cells is involved in the viral tropism. A human adenovirus (Ad) belonging to subgroups A, C, D, E and F infects cells via the interaction between the fiber knob and the primary receptor, the coxsackievirus and adenovirus receptor (CAR). Conventional human adenovirus type 5 (hAd5) vectors show efficient transduction in CAR-positive cells; in contrast, hAd5 vector application is limited by poor transduction into cells lacking CAR expression. In the present study, to broaden the tropism of hAd5 vectors, we generated hAd5 vectors containing the TAT peptide, which is a protein transduction domain derived from human immunodeficiency virus, in the HI loop of the fiber knob (Ad-TAT(HI)-L2) or the C-terminus of the fiber knob (Ad-TAT(C)-L2). In CAR-negative adherent cells, Ad-TAT(HI)-L2 and Ad-TAT(C)-L2 showed approximately 50- to 500-fold higher gene expression than the conventional hAd5 vector (Ad-L2). Ad-TAT(HI)-L2 was also more efficient than Ad-L2 in blood cell lines and in two types of primary cultured human vascular smooth muscle cells, which are almost refractory to Ad-L2. Furthermore, Ad-TAT(HI)-L2 was more efficient than other types of fiber-modified Ad vectors, which harbor an RGD (Arg-Gly-Asp) or a poly-lysine (KKKKKKK;K7) peptide in the HI loop or the C-terminus of the fiber knob, respectively. Ad-TAT(HI)-L2 efficiently transduced the organs in levels and patterns that were roughly similar to those of Ad-L2 after being systemically injected into mice. To the best of our knowledge, this study is the first report showing that hAd5 vectors containing the TAT peptide in the fiber knob could efficiently transduce cells independently of CAR. These Ad vectors should be useful for gene functional analysis and gene therapy.
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Affiliation(s)
- S Kurachi
- Laboratory of Gene Transfer and Regulation, National Institute of Biomedical Innovation, Osaka, Japan
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Abstract
Human CD46 (membrane cofactor protein), which serves as a receptor for a variety of pathogens, including strains of measles virus, human herpesvirus type 6 and Neisseria, is rapidly downregulated from the cell surface following infection by these pathogens. Here, we report that replication-incompetent adenovirus (Ad) serotype 35 (Ad35) vectors, which belong to subgroup B and recognize human CD46 as a receptor, downregulate CD46 following infection. A decline in the surface expression of CD46 in human peripheral blood mononuclear cells was detectable 6 h after infection, and reached maximum (72%) 12 h after infection. Ad35 vector-induced downregulation of surface CD46 levels gradually recovered after the removal of Ad35 vectors, however, complete recovery of CD46 expression was not observed even at 96 h after removal. The surface expression of CD46 was also reduced after incubation with fiber-substituted Ad serotype 5 (Ad5) vectors bearing Ad35 fiber proteins, ultraviolet-irradiated Ad35, vectors and recombinant Ad35 fiber knob proteins; in contrast, conventional Ad5 vectors did not induce surface CD46 downregulation, suggesting that the fiber knob protein of Ad35 plays a crucial role in the downregulation of surface CD46 density. These results have important implications for gene therapy using CD46-utilizing Ad vectors and for the pathogenesis of Ads that interact with CD46.
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Affiliation(s)
- F Sakurai
- Laboratory of Gene Transfer and Regulation, National Institute of Biomedical Innovation, Osaka, Japan
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Kurachi S, Koizumi N, Sakurai F, Kawabata K, Sakurai H, Nakagawa S, Hayakawa T, Mizuguchi H. Characterization of capsid-modified adenovirus vectors containing heterologous peptides in the fiber knob, protein IX, or hexon. Gene Ther 2006; 14:266-74. [PMID: 17006548 DOI: 10.1038/sj.gt.3302859] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Adenovirus (Ad) vectors are widely used in gene therapy and in vitro/in vivo gene transfer because of their high transduction efficiency. However, Ad vector application in the gene therapy field is limited by poor transduction into cells not expressing the primary receptor, coxsackievirus and adenovirus receptor. To overcome this problem, several types of capsid-modified Ad vectors have been developed. The HI loop or C-terminus of the fiber knob, the C-terminus of the protein IX (pIX) and the hypervariable region 5 of the hexon are promising candidate locations for displaying foreign peptide sequences. In the present study, we constructed Ad vectors in which each of the above region was modified by a simple in vitro ligation-based method, and examined the characterization of each Ad vector containing the FLAG tag (DYKDDDDK) or RGD (CDCRGDCFC) peptide. Enzyme-linked immunosorbent assay examining the surface expression of foreign peptides on the virus suggested that foreign peptides are exposed on virion surfaces in all types vectors and that the hexon was the most efficiently reacted, reflecting the copy number of the modification. However, in the case of the transduction efficiency of Ad vectors containing the RGD peptides, the modification of pIX and the hexon showed no effect. The modification of the HI loop of the fiber knob was the most efficient, followed by the modification of the C-terminus region of the fiber knob. These comparative analyses, together with a simple construction method for each modified Ad vector, could provide basic information for the generation of capsid-modified Ad vectors.
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Affiliation(s)
- S Kurachi
- Laboratory of Gene Transfer and Regulation, National Institute of Biomedical Innovation, Osaka, Japan
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Tachibana H, Kawabata K, Kida Y, Takeda M, Oku T, Kuroda N, Kitano H. P36.9 Visual event-related potentials in Parkinson’s disease during a recognition memory task. Clin Neurophysiol 2006. [DOI: 10.1016/j.clinph.2006.06.620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Pian E, Mazzali PA, Masetti N, Ferrero P, Klose S, Palazzi E, Ramirez-Ruiz E, Woosley SE, Kouveliotou C, Deng J, Filippenko AV, Foley RJ, Fynbo JPU, Kann DA, Li W, Hjorth J, Nomoto K, Patat F, Sauer DN, Sollerman J, Vreeswijk PM, Guenther EW, Levan A, O'Brien P, Tanvir NR, Wijers RAMJ, Dumas C, Hainaut O, Wong DS, Baade D, Wang L, Amati L, Cappellaro E, Castro-Tirado AJ, Ellison S, Frontera F, Fruchter AS, Greiner J, Kawabata K, Ledoux C, Maeda K, Møller P, Nicastro L, Rol E, Starling R. An optical supernova associated with the X-ray flash XRF 060218. Nature 2006; 442:1011-3. [PMID: 16943831 DOI: 10.1038/nature05082] [Citation(s) in RCA: 393] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2006] [Accepted: 07/10/2006] [Indexed: 11/09/2022]
Abstract
Long-duration gamma-ray bursts (GRBs) are associated with type Ic supernovae that are more luminous than average and that eject material at very high velocities. Less-luminous supernovae were not hitherto known to be associated with GRBs, and therefore GRB-supernovae were thought to be rare events. Whether X-ray flashes--analogues of GRBs, but with lower luminosities and fewer gamma-rays--can also be associated with supernovae, and whether they are intrinsically 'weak' events or typical GRBs viewed off the axis of the burst, is unclear. Here we report the optical discovery and follow-up observations of the type Ic supernova SN 2006aj associated with X-ray flash XRF 060218. Supernova 2006aj is intrinsically less luminous than the GRB-supernovae, but more luminous than many supernovae not accompanied by a GRB. The ejecta velocities derived from our spectra are intermediate between these two groups, which is consistent with the weakness of both the GRB output and the supernova radio flux. Our data, combined with radio and X-ray observations, suggest that XRF 060218 is an intrinsically weak and soft event, rather than a classical GRB observed off-axis. This extends the GRB-supernova connection to X-ray flashes and fainter supernovae, implying a common origin. Events such as XRF 060218 are probably more numerous than GRB-supernovae.
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Affiliation(s)
- E Pian
- Istituto Nazionale di Astrofisica, Trieste Astronomical Observatory, via G. B. Tiepolo 11, I-34131 Trieste, Italy.
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Sakurai F, Kawabata K, Koizumi N, Inoue N, Okabe M, Yamaguchi T, Hayakawa T, Mizuguchi H. Adenovirus serotype 35 vector-mediated transduction into human CD46-transgenic mice. Gene Ther 2006; 13:1118-26. [PMID: 16541121 DOI: 10.1038/sj.gt.3302749] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We previously demonstrated that systemic administration of adenovirus serotype 35 (Ad35) vectors to mice does not mediate efficient transduction in organs, probably because expression of the mouse analog of the subgroup B Ad receptor, human CD46 (membrane cofactor protein), is limited to the testis. Here, we describe the in vitro and in vivo transduction characteristics of Ad35 vectors by using homozygous and hemizygous human CD46-transgenic (CD46TG) mice, which ubiquitously express human CD46. An Ad35 vector more efficiently transduced the primary dendritic cells and macrophages prepared from CD46TG mice than those from wild-type mice. In vivo transduction experiments demonstrated that CD46TG mice are more susceptible to Ad35 vector-mediated in vivo transduction than are wild-type mice. In particular, homozygous CD46TG mice, which express higher levels of CD46 in the organs than hemizygous CD46TG mice, tend to exhibit higher transduction efficiencies after intraperitoneal administration than hemizygous CD46TG mice. Intraperitoneal administration of Ad35 vectors resulted in efficient transduction into the mesothelial cells of the peritoneal organs in homozygous CD46TG mice. These results indicate that an Ad35 vector recognizes human CD46 as a cellular receptor in CD46TG mice. However, the in vivo transduction efficiencies of Ad35 vectors in CD46TG mice are much lower than those of conventional Ad5 vectors in wild-type mice.
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Affiliation(s)
- F Sakurai
- Laboratory of Gene Transfer and Regulation, National Institute of Biomedical Innovation, Osaka, Japan
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Hagio T, Matsumoto S, Nakao S, Matsuoka S, Kawabata K. Sivelestat, a specific neutrophil elastase inhibitor, prevented phorbol myristate acetate-induced acute lung injury in conscious rabbits. Pulm Pharmacol Ther 2005; 18:285-90. [PMID: 15777611 DOI: 10.1016/j.pupt.2004.12.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2004] [Revised: 12/16/2004] [Accepted: 12/21/2004] [Indexed: 11/24/2022]
Abstract
The in vivo contribution of neutrophil elastase (NE) in phorbol myristate acetate (PMA)-induced acute lung injury has so far been unclear. This study examined the role of NE in PMA-induced acute lung injury in conscious rabbits, using a specific NE inhibitor, sivelestat sodium hydrate (Sivelestat). A single bolus injection of PMA (40 microg/kg) caused acute lung injury as indicated by an increase in protein concentration and hemorrhage in bronchoalveolar lavage fluid (BALF) 4h after PMA injection. These changes were associated with mild decrease in arterial oxygen pressure and peripheral white blood cell and platelet. When continuously infused starting 1h before and ending 4h post-PMA injection, Sivelestat at 3-30 mg/kg/h that are able to inhibit rabbit NE activity by 60-90%, dose-dependently attenuated both PMA-induced hemorrhagic pneumonitis and the increase in protein concentration in BALF without affecting myeloperoxidase activity in the lung. Histopathological study indicated that sivelestat (30 mg/kg/h) markedly attenuated lung histopathological changes, alveolar hemorrhage and white blood cells migration with evidence of inhibition of NE activity in BALF. These results suggest that NE plays a significant role in PMA-induced acute lung injury and further supports the importance of this enzyme in acute lung injury.
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Affiliation(s)
- T Hagio
- Discovery Research Laboratories II, Minase Research Institute, Ono Pharmaceutical Co. Ltd, 3-1-1 Sakurai, Shimamoto, Mishima, Osaka 618-8585, Japan
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Sakurai F, Kawabata K, Yamaguchi T, Hayakawa T, Mizuguchi H. Optimization of adenovirus serotype 35 vectors for efficient transduction in human hematopoietic progenitors: comparison of promoter activities. Gene Ther 2005; 12:1424-33. [PMID: 15944730 DOI: 10.1038/sj.gt.3302562] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Adenoviral gene transfer to hematopoietic stem cells (HSCs)/progenitors would provide a new approach to the treatment of hematopoietic diseases and study of the hematopoietic system. We have previously reported that an adenovirus (Ad) vector composed of whole Ad serotype 35 (Ad35), which belongs to subgroup B, shows efficient gene transfer into human bone marrow CD34+ cells. However, Ad35 vector-mediated transduction into human HSCs/progenitors has not yet been fully optimized. In the present study, we have systematically examined promoter activity in the context of Ad35 vectors in human bone marrow CD34+ cells and primitive CD34+ subsets to optimize the transduction efficiency in human hematopoietic stem/progenitor cells. In the first of the transduction experiments, the improved in vitro ligation method was applied to Ad35 vector construction to allow for simple and efficient production of an E1/E3-deleted Ad35 vector. Using this method, we constructed a series of Ad35 vectors encoding the enhanced green fluorescence protein (GFP) under the control of a variety of strong viral and cellular promoters. Of the six types of promoters tested, significantly higher transduction efficiencies were achieved with the human elongation factor 1alpha promoter (EF1alpha promoter), the human cytomegalovirus (CMV) immediate-early 1 gene enhancer/beta-actin promoter with beta-actin intron (CA promoter), and the CMV promoter/enhancer with the largest intron of CMV (intron A) (CMVi promoter) in the human CD34+ cells and the immature subsets (CD34+ CD38(low/-) and CD34+ AC133+ subsets). In particular, the CA promoter was found to allow for the highest transduction efficiencies in both the whole human CD34+ cells and the immature hematopoietic subsets. Furthermore, the CA promoter-mediated GFP-expressing cells differentiated into progenitor cells of all lineages. These results indicate the construction of an optimized Ad35 vector backbone for efficient transduction into HSCs/progenitors.
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Affiliation(s)
- F Sakurai
- Laboratory of Gene Transfer and Regulation, National Institute of Biomedical Innovation, Osaka, Japan
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Vutova K, Mladenov G, Tanaka T, Kawabata K. Photoelectron signal simulation from textured samples with modified surface composition. SURF INTERFACE ANAL 2002. [DOI: 10.1002/sia.1368] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Kawabata K, Kishi Y, Kawaguchi O, Watanabe Y, Inoue Y. Determination of rare-earth elements by inductively coupled plasma mass spectrometry with ion chromatography. Anal Chem 2002. [DOI: 10.1021/ac00019a013] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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