Nueva estrategia terapéutica: Inhibición de ABHD6 para controlar la excitabilidad neuronal en el hipocampo

Hoy os queremos hablar de un reciente artículo (DOI: 10.1016/j.nbd.2023.106099) en el que se describe un nuevo descubrimiento sobre la interacción molecular entre la actividad de la enzima ABHD6 y las corrientes inhibitorias de GABAAR tónicas en las células granulares del hipocampo. Esta interacción molecular controla la excitabilidad neuronal y la generación de crisis epilépticas en un modelo de ratón preclínico de síndrome de Dravet.

Se sabe que la activación de los receptores de GABAAR que contienen subunidades d produce corrientes inhibitorias tónicas que controlan la excitabilidad neuronal de manera diferente a la activación fásica de los receptores de GABAAR sin subunidades d. Estas corrientes tónicas generan una inhibición de larga duración que controla la excitabilidad de la red y la generación de ritmos en el hipocampo. Además, se muestra que la inhibición farmacológica de ABHD6 y la mutación heterocigota de Abhd6 en ratones Scn1a+/− reducen la incidencia y duración de las crisis epilépticas inducidas térmicamente durante el período crítico asociado con la susceptibilidad aumentada a las convulsiones y la mortalidad.

El mecanismo propuesto para la potenciación de las corrientes inhibitorias tónicas de GABAAR por la inhibición de ABHD6 implica el aumento de los niveles de 2-AG, un lípido de señalización, que se une a un sitio alostérico intracelular en GABAAR. Esto sugiere que la inhibición de ABHD6 aumenta localmente los niveles de 2-AG postsináptico, lo que a su vez potencia las corrientes inhibitorias tónicas de GABAAR.

Además, se encontró que la mutación de Abhd6 en ratones Scn1a+/− reduce la letalidad en los primeros períodos de desarrollo así como las crisis epilépticas térmicas, pero aumenta la letalidad en períodos posteriores sin crisis epilépticas. Esto sugiere que ABHD6 desempeña un papel multifuncional en el desarrollo temprano y la progresión del síndrome de Dravet.

También, la inhibición farmacológica de ABHD6 reduce la duración de las crisis epilépticas sin afectar la temperatura o la gravedad de estas. Esto sugiere que la inhibición de ABHD6 puede ser una estrategia prometedora para el tratamiento de las crisis epilépticas en combinación con otros enfoques terapéuticos. Además, se observó un aumento en la capacidad de las corrientes inhibitorias tónicas de GABAAR en las células granulares del hipocampo de ratones Scn1a+/− sobrevivientes. Esto indica que el objetivo directo de estos receptores, posiblemente mediante agonistas de las subunidades d de GABAAR, podría mejorar la eficacia anticonvulsiva en ratones Scn1a+/− y posiblemente en pacientes con síndrome de Dravet.

En conclusión, la inhibición de ABHD6 representa una nueva aproximación terapéutica prometedora para el tratamiento seguro de las crisis epilépticas en el síndrome de Dravet y estos resultados tienen relevancia preclínica y sugieren que la inhibición de ABHD6 podría ser investigada como una estrategia terapéutica potencial en personas con síndrome de Dravet.

Es importante destacar que estos hallazgos son resultado de investigaciones en un modelo de ratón preclínico y aún se requiere realizar más estudios para evaluar la seguridad y eficacia de la inhibición de ABHD6 en seres humanos. Sin embargo, los resultados hasta ahora son alentadores y brindan una base sólida para futuras investigaciones y ensayos clínicos.

La identificación de nuevos mecanismos moleculares y dianas terapéuticas en trastornos neurológicos como el síndrome de Dravet es crucial para desarrollar enfoques terapéuticos más efectivos y mejorar de esa manera la calidad de vida de los pacientes. La comprensión de la interacción entre la actividad de la enzima ABHD6 y las corrientes inhibitorias de GABAAR tónicas en el hipocampo podría abrir nuevas vías terapéuticas no solo para el síndrome de Dravet, sino también para otros trastornos relacionados con la excitabilidad neuronal.

En resumen, aunque se requiere de más investigación para validar estos hallazgos y determinar su aplicabilidad clínica en seres humanos, el descubrimiento de la interacción molecular entre ABHD6 y las corrientes inhibitorias de GABAAR tónicas en el hipocampo proporciona información valiosa sobre los mecanismos subyacentes del síndrome de Dravet y ofrece nuevas perspectivas para el desarrollo de tratamientos más efectivos.

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TERMS & CONDITIONS

The Dravet Syndrome Conference 2023 is organised by Dravet Syndrome Foundation Spain, whose registered office is located at Calle Doctor Fleming, 30, 28036 Madrid, Spain.

The conference shall take place at the Official College of Nursing of Madrid, at Avenida de Menéndez Pelayo, 93, 28007 Madrid, Spain, on Thursday 23rd of March 2023. Attendance to this conference is free of charge, but mandatory for organisational reasons.

Participants must register online at www.dravetconference.com. Upon registration, each participant will receive an electronic confirmation by email. On-site registration will not be be possible. If a participant has not received the official email registration confirmation within 3 days, they must contact the conference secretariat at [email protected].

The conference registration includes: Attendance to all sessions, oral and visual presentations, all coffee and lunch breaks, and conference documentation with all information about the event. The registration does not include travel and accommodation costs or any other personal expenses.

Admittance to the conference without registration cannot be granted.

Conference Attendance
Upon arrival at the Official College of Nursing of Madrid the day of the event, all participants have to check-in at the onsite Conference Registration Desk. The desk will open on 23rd of March at 8:30 a.m. Upon registration onsite, the conference team will provide participants with information about the event and a badge, which should be worn visibly at all times. The personalised badge authorises participants to attend all conference sessions, and lunch and coffee breaks.

Cancellation Policy
Dravet Syndrome Foundation Spain reserves the right to cancel any registration forthwith and without liability on its part in the event of any damage to, or destruction of the venue by fire, shortage of labour, strikes, industrial unrest, public health measures, or any other cause beyond the control of the Dravet Syndrome Foundation Spain, which shall prevent it from performing its obligations. In these circumstances, every effort will be made to find an alternative format/venue or propose a new date for the conference. Should the conference be cancelled for any reason, airfares, hotels, or other costs incurred by the participants are not reimbursed by the Dravet Syndrome Foundation Spain.

Any participant is allowed to cancel his/her registration but must notify this to the conference organisers by e-mail at [email protected] within a minimum of 10 days prior the event. Failure to attend the event without prior written notification by email may incur a no-show fee, which shall cover individual organizational, material and catering costs.

Name Change
All registrations are only valid for the respective person mentioned in the form. A registered participant unable to attend the conference may nominate (free of charge) a substitute participant by notifying the conference organisers by email at [email protected] before 16th of March 2023. The procedure allows giving the last name, first name, and email address of the new participant.

Personal Data
Upon registration, the participant authorises Dravet Syndrome Foundation Spain to use their personal data stated above to inform the participant of any further conferences, events, or information concerning the conference and Dravet Syndrome Foundation Spain’s activities. The conference booklet online will only contain authors, titles, and affiliations of submitted abstracts, but no full abstract texts. The conference printed booklet will contain full abstract texts from all participants. Conference certificates will be sent to the participants as a PDF document upon request at [email protected]. Only the name & affiliation will be stated in the certificate, not the email addresses of the participants.

Information is collected by an automated computer system that manages registrations. Security and confidentiality are guaranteed by state-of-the-art technical tools. However, Dravet Syndrome Foundation Spain declines any responsibility concerning data security transmitted through the internet.

Photography
The conference is held in public; therefore, we do not ban participants, exhibitors, partners and other companies from taking photographs of conference activities and participants, and share it via social media. By participating in the conference, you approve that general pictures will be taken and used for our Social Media output, our websites and other communication purposes. You hereby waive any right to oppose, and expressly authorise the organiser to make them available on the Internet or as it may seem fit. Author’s presentation slides shall not be photographed by any conference participant. 

Disclaimer
The conference organiser cannot be held responsible for any loss, injury or damage to any property, whatever the cause may be. Should, for any reason outside the organiser’s control (e.g., political or economic circumstances or a case of ‘force majeure’), the venue or speakers change, or the event be cancelled, the organiser will endeavour to reschedule, but shall not be held responsible for any costs, damages or expenses incurred by the participants. If for any reason the organiser decides to make material changes to this conference, the organiser is not responsible for airfares, hotels or other costs incurred by the participants. The participant takes part in the conference, all tours, and trips at his own risk.

Copyright
The participant is allowed to use the conference documentation exclusively for his/her personal needs.

TERMS & CONDITIONS

The European Dravet Syndrome Advanced Therapies (EDSAT) Meeting 2023 is organised by Dravet Syndrome Foundation Spain, whose registered office is located at Calle Doctor Fleming, 30, 28036 Madrid, Spain.

The conference shall take place at the Official College of Nursing of Madrid, at Avenida de Menéndez Pelayo, 93, 28007 Madrid, Spain, on Friday 24th of March 2023. Attendance to this conference is free of charge, but mandatory for organisational reasons.

Participants must register online at www.dravetconference.com. Upon registration, each participant will receive an electronic confirmation by email. On-site registration will not be be possible. If a participant has not received the official email registration confirmation within 3 days, they must contact the conference secretariat at [email protected].

The conference registration includes: Attendance to all sessions, oral and visual presentations, all coffee and lunch breaks, and conference documentation with all information about the event. The registration does not include travel and accommodation costs or any other personal expenses.

Admittance to the conference without registration cannot be granted.

Conference Attendance
Upon arrival at the Official College of Nursing of Madrid the day of the event, all participants have to check-in at the onsite Conference Registration Desk. The desk will open on 24th of March at 8:30 a.m. Upon registration onsite, the conference team will provide participants with information about the event and a badge, which should be worn visibly at all times. The personalised badge authorises participants to attend all conference sessions, and lunch and coffee breaks.

Cancellation Policy
Dravet Syndrome Foundation Spain reserves the right to cancel any registration forthwith and without liability on its part in the event of any damage to, or destruction of the venue by fire, shortage of labour, strikes, industrial unrest, public health measures, or any other cause beyond the control of the Dravet Syndrome Foundation Spain, which shall prevent it from performing its obligations. In these circumstances, every effort will be made to find an alternative format/venue or propose a new date for the conference. Should the conference be cancelled for any reason, airfares, hotels, or other costs incurred by the participants are not reimbursed by the Dravet Syndrome Foundation Spain.

Any participant is allowed to cancel his/her registration but must notify this to the conference organisers by e-mail at [email protected] within a minimum of 10 days prior the event. Failure to attend the event without prior written notification
by email may incur a no-show fee, which shall cover individual organizational, material and catering costs.

Name Change
All registrations are only valid for the respective person mentioned in the form. A registered participant unable to attend the conference may nominate (free of charge) a substitute participant by notifying the conference organisers by email at [email protected] before 17th of March 2023. The procedure allows giving the last name, first name, and email address of the new participant.

Personal Data
Upon registration, the participant authorises Dravet Syndrome Foundation Spain to use their personal data stated above to inform the participant of any further conferences, events, or information concerning the conference and Dravet Syndrome Foundation Spain’s activities. The conference booklet online will only contain authors, titles, and affiliations of submitted abstracts, but no full abstract texts. The conference printed booklet will contain full abstract texts from all participants. Conference certificates will be sent to the participants as a PDF document upon request at [email protected]. Only the name & affiliation will be stated in the certificate, not the email addresses of the participants.

Information is collected by an automated computer system that manages registrations. Security and confidentiality are guaranteed by state-of-the-art technical tools. However, Dravet Syndrome Foundation Spain declines any responsibility concerning data security transmitted through the internet.

Photography
The conference is held in public; therefore, we do not ban participants, exhibitors, partners and other companies from taking photographs of conference activities and participants, and share it via social media. By participating in the conference, you approve that general pictures will be taken and used for our Social Media output, our websites and other communication purposes. You hereby waive any right to oppose, and expressly authorise the organiser to make them available on the Internet or as it may seem fit. Author’s presentation slides shall not be photographed by any conference participant.

Disclaimer
The conference organiser cannot be held responsible for any loss, injury or damage to any property, whatever the cause may be. Should, for any reason outside the organiser’s control (e.g., political or economic circumstances or a case of ‘force majeure’), the venue or speakers change, or the event be cancelled, the organiser will endeavour to reschedule, but shall not be held responsible for any costs, damages or expenses incurred by the participants. If for any reason the organiser decides to make material changes to this conference, the organiser is not responsible for airfares, hotels or other costs incurred by the participants. The participant takes part in the conference, all tours, and trips at his own risk.

Copyright
The participant is allowed to use the conference documentation exclusively for his/her personal needs.

TERMS & CONDITIONS

The European Dravet Syndrome Advanced Therapies (EDSAT) Meeting 2022 is organised by Dravet Syndrome Foundation Spain, whose registered office is located at Calle Doctor Fleming, 30, 28036 Madrid, Spain.

The conference shall take place at the Illustrious Official College of Physicians of Madrid, at Calle de Santa Isabel, 51, 28012 Madrid, Spain, on Friday 1st of April 2022. Attendance to this conference is free of charge, but mandatory for organisational reasons. Participants must register online at www.dravetconference.com. Upon registration, each participant will receive an electronic confirmation by email. On-site registration will not be be possible. If a participant has not received the official email registration confirmation within 3 days, they must contact the conference secretariat at [email protected].

The conference registration includes: Attendance to all sessions, oral and visual presentations, all coffee and lunch breaks, and conference documentation with all information about the event. The registration does not comprise travelling and accommodation costs or any other personal expenses.

Admittance to the workshop without registration cannot be granted.

Conference Attendance
Upon arrival at the Illustrious Official College of Physicians of Madrid the day of the event, all participants have to register at the onsite Conference Registration Desk. The desk will open on 1st of April at 8:30 a.m. Upon registration onsite, the conference team will provide participants with information about the event and a badge, which should be worn visibly at all times. The personalised badge authorises participants to attend all conference sessions, and lunch and coffee breaks.

Cancellation Policy
Dravet Syndrome Foundation Spain reserves the right to cancel any registration forthwith and without liability on its part in the event of any damage to, or destruction of the venue by fire, shortage of labour, strikes, industrial unrest, public health measures, or any other cause beyond the control of the Dravet Syndrome Foundation Spain, which shall prevent it from performing its obligations. In these circumstances, every effort will be made to find an alternative format/venue or propose a new date for the conference. Should the conference be cancelled for any reason, airfares, hotels, or other costs incurred by the participants are not reimbursed by the Dravet Syndrome Foundation Spain.

Any participant is allowed to cancel his/her registration but must notify this to the conference organisers by e-mail at [email protected] within a minimum of 10 days
prior the event. Failure to attend the event without prior written notification
by email may incur a no-show fee, which shall cover individual organizational,
material and catering costs.

Name Change
All registrations are only valid for the respective person mentioned in the form. A registered participant unable to attend the conference may nominate (free of charge) a substitute participant by notifying the conference organisers by email at [email protected] before 24th of March 2022. The procedure allows giving the last name, first name, and email address of the new participant.

Personal Data
Upon registration, the participant authorises Dravet Syndrome Foundation Spain to use their personal data stated above to inform the participant of any further conferences, events, or information concerning the conference and Dravet Syndrome Foundation Spain’s activities. The conference booklet online will only contain authors, titles, and affiliations of submitted abstracts, but no full abstract texts. The conference printed booklet will contain full abstract texts from all participants. Conference certificates will be sent to the participants as a PDF document upon request at [email protected]. Only the name & affiliation will be stated in the certificate, not the email addresses of the participants.

Information is collected by an automated computer system that manages registrations. Security and confidentiality are guaranteed by state-of-the-art technical tools. However, Dravet Syndrome Foundation Spain declines any responsibility concerning data security transmitted through the internet.

Photography
The conference is held in public; therefore, we do not ban participants, exhibitors, partners and other companies from taking photographs of conference activities and participants, and share it via social media. By participating in the conference, you approve that general pictures will be taken and used for our Social Media output, our websites and other communication purposes. You hereby waive any right to oppose, and expressly authorise the organiser to make them available on the Internet or as it may seem fit. Author’s presentation slides shall not be photographed by any conference participant.

Disclaimer
The conference organiser cannot be held responsible for any loss, injury or damage to any property, whatever the cause may be. Should, for any reason outside the organiser’s control (e.g., political or economic circumstances or a case of ‘force majeure’), the venue or speakers change, or the event be cancelled, the organiser will endeavour to reschedule, but shall not be held responsible for any costs, damages or expenses incurred by the participants. If for any reason the organiser decides to make material changes to this conference, the organiser is not responsible for airfares, hotels or other costs incurred by the participants. The participant takes part in the conference, all tours, and trips at his own risk.

Copyright
The participant is allowed to use the conference documentation exclusively for his/her personal needs.

TERMS & CONDITIONS

The Dravet Syndrome Conference 2022 is organised by Dravet Syndrome Foundation Spain, whose registered office is located at Calle Doctor Fleming, 30, 28036 Madrid, Spain.

The conference shall take place at the Illustrious Official College of Physicians of Madrid, at Calle de Santa Isabel, 51, 28012 Madrid, Spain, on Thursday 31st of March 2022. Attendance to this conference is free of charge, but mandatory for organisational reasons. Participants must register online at www.dravetconference.com. Upon registration, each participant will receive an electronic confirmation by email. On-site registration will not be be possible. If a participant has not received the official email registration confirmation within 3 days, they must contact the conference secretariat at [email protected].

The conference registration includes: Attendance to all sessions, oral and visual presentations, all coffee and lunch breaks, and conference documentation with all information about the event. The registration does not include travel and accommodation costs or any other personal expenses.

Admittance to the conference without registration cannot be granted.

Conference Attendance
Upon arrival at the Illustrious Official College of Physicians of Madrid the day of the event, all participants have to register at the onsite Conference Registration Desk. The desk will open on 31st of March at 8:30 a.m. Upon registration onsite, the conference team will provide participants with information about the event and a badge, which should be worn visibly at all times. The personalised badge authorises participants to attend all conference sessions, and lunch and coffee breaks. 

Cancellation Policy
Dravet Syndrome Foundation Spain reserves the right to cancel any registration forthwith and without liability on its part in the event of any damage to, or destruction of the venue by fire, shortage of labour, strikes, industrial unrest, public health measures, or any other cause beyond the control of the Dravet Syndrome Foundation Spain, which shall prevent it from performing its obligations. In these circumstances, every effort will be made to find an alternative format/venue or propose a new date for the conference. Should the conference be cancelled for any reason, airfares, hotels, or other costs incurred by the participants are not reimbursed by the Dravet Syndrome Foundation Spain.

Any participant is allowed to cancel his/her registration but must notify this to the conference organisers by e-mail at [email protected] within a minimum of 10 days prior the event. Failure to attend the event without prior written notification by email may incur a no-show fee, which shall cover individual organizational, material and catering costs.

Name Change
All registrations are only valid for the respective person mentioned in the form. A registered participant unable to attend the conference may nominate (free of charge) a substitute participant by notifying the conference organisers by email at [email protected] before 24th of March 2022. The procedure allows giving the last name, first name, and email address of the new participant.

Personal Data
Upon registration, the participant authorises Dravet Syndrome Foundation Spain to use their personal data stated above to inform the participant of any further conferences, events, or information concerning the conference and Dravet Syndrome Foundation Spain’s activities. The conference booklet online will only contain authors, titles, and affiliations of submitted abstracts, but no full abstract texts. The conference printed booklet will contain full abstract texts from all participants. Conference certificates will be sent to the participants as a PDF document upon request at [email protected]. Only the name & affiliation will be stated in the certificate, not the email addresses of the participants.

Information is collected by an automated computer system that manages registrations. Security and confidentiality are guaranteed by state-of-the-art technical tools. However, Dravet Syndrome Foundation Spain declines any responsibility concerning data security transmitted through the internet.

Photography
The conference is held in public; therefore, we do not ban participants, exhibitors, partners and other companies from taking photographs of conference activities and participants, and share it via social media. By participating in the conference, you approve that general pictures will be taken and used for our Social Media output, our websites and other communication purposes. You hereby waive any right to oppose, and expressly authorise the organiser to make them available on the Internet or as it may seem fit. Author’s presentation slides shall not be photographed by any conference participant. 

Disclaimer
The conference organiser cannot be held responsible for any loss, injury or damage to any property, whatever the cause may be. Should, for any reason outside the organiser’s control (e.g., political or economic circumstances or a case of ‘force majeure’), the venue or speakers change, or the event be cancelled, the organiser will endeavour to reschedule, but shall not be held responsible for any costs, damages or expenses incurred by the participants. If for any reason the organiser decides to make material changes to this conference, the organiser is not responsible for airfares, hotels or other costs incurred by the participants. The participant takes part in the conference, all tours, and trips at his own risk.

Copyright
The participant is allowed to use the conference documentation exclusively for his/her personal needs.